Additional common milkweed would help Canada meet its share of the trinational eastern migratory monarch butterfly recovery target.
Mitchell, G. W.; Kirby, P.; Duffe, J.; Fahrig, L.; Girard, J.; Johnston, M. K.; Larrivée, M.; Martin, A. E.; Momeni-Dehaghi, I.; Pasher, J.; Rezek, E.; Shapiro, E. D.; Thogmartin, W. E.; and Pouliot, D.
FACETS, 10: 1–14. January 2025.
Publisher: Canadian Science Publishing
Paper
doi
link
bibtex
abstract
@article{mitchell_additional_2025,
title = {Additional common milkweed would help {Canada} meet its share of the trinational eastern migratory monarch butterfly recovery target},
volume = {10},
url = {https://www.facetsjournal.com/doi/10.1139/facets-2024-0063},
doi = {10.1139/facets-2024-0063},
abstract = {The eastern migratory monarch butterfly (Danaus plexippus) population has declined by ∼84\% between 1993 and 2024. Population recovery in the Midwestern United States is limited by the availability of the monarch's main host plant for egg laying—common milkweed (Asclepias syriaca). The extent to which common milkweed availability is limiting in other breeding regions is unknown. Our objective was to determine whether Canada has enough common milkweed to support its share of the trinational eastern migratory monarch population recovery target, given ∼29 stems of common milkweed are needed to contribute one adult monarch into the fall migratory population. To meet this objective, we estimated the number of common milkweed stems in Canada using published common milkweed availability estimates by land cover type. We also estimated the size of the Canadian monarch population if the recovery target was achieved using published estimates of wintering monarch density in Mexico, fall migration survival rates, and the relative proportion of monarchs entering fall migration from Canada. We estimate that Canada currently has 484 million common milkweed stems (range: 111 million–1 billion stems) and increasing this amount by 1.61 times (i.e., by ∼295 million stems), or equivalently, by 61\%, would support the recovery target.},
urldate = {2025-09-02},
journal = {FACETS},
author = {Mitchell, Greg W. and Kirby, Patrick and Duffe, Jason and Fahrig, Lenore and Girard, Judith and Johnston, Mark K. and Larrivée, Maxim and Martin, Amanda E. and Momeni-Dehaghi, Iman and Pasher, Jon and Rezek, Elizabeth and Shapiro, Elisabeth D. and Thogmartin, Wayne E. and Pouliot, Darren},
month = jan,
year = {2025},
note = {Publisher: Canadian Science Publishing},
keywords = {NALCMS},
pages = {1--14},
}
The eastern migratory monarch butterfly (Danaus plexippus) population has declined by ∼84% between 1993 and 2024. Population recovery in the Midwestern United States is limited by the availability of the monarch's main host plant for egg laying—common milkweed (Asclepias syriaca). The extent to which common milkweed availability is limiting in other breeding regions is unknown. Our objective was to determine whether Canada has enough common milkweed to support its share of the trinational eastern migratory monarch population recovery target, given ∼29 stems of common milkweed are needed to contribute one adult monarch into the fall migratory population. To meet this objective, we estimated the number of common milkweed stems in Canada using published common milkweed availability estimates by land cover type. We also estimated the size of the Canadian monarch population if the recovery target was achieved using published estimates of wintering monarch density in Mexico, fall migration survival rates, and the relative proportion of monarchs entering fall migration from Canada. We estimate that Canada currently has 484 million common milkweed stems (range: 111 million–1 billion stems) and increasing this amount by 1.61 times (i.e., by ∼295 million stems), or equivalently, by 61%, would support the recovery target.
Amélioration de la modélisation des variables hydrologiques et évaluation de l’impact des changements climatiques au Québec.
Talbot, F.
Master's thesis, École de technologie supérieure, March 2025.
Paper
link
bibtex
abstract
@mastersthesis{talbot_amelioration_2025,
title = {Amélioration de la modélisation des variables hydrologiques et évaluation de l’impact des changements climatiques au {Québec}},
url = {https://espace.etsmtl.ca/id/eprint/3628/},
abstract = {Ce mémoire vise à améliorer la modélisation des variables hydrologiques et à évaluer les impacts des changements climatiques sur les bassins versants du Québec, en mettant l'accent sur l'application du modèle hydrologique WaSiM et les projections climatiques issues de CMIP6. La recherche se concentre sur trois aspects clés : l'optimisation de la configuration du modèle hydrologique, la comparaison entre les méthodes de modélisation conventionnelle et asynchrone, et l'évaluation des impacts des changements climatiques sur les variables hydrologiques.
Dans le premier volet de l’étude, trois configurations du modèle WaSiM sont comparées. La configuration intégrant la recharge de la nappe phréatique dans la calibration des paramètres du modèle, bien que moins performante en termes de reproduction des débits observés, offre une précision supérieure dans la modélisation des variables hydrologiques internes, soulignant l’importance d’une calibration multi-variable pour limiter le phénomène d’équifinalité lors de l’optimisation du modèle et améliorer la représentation des variables hydrologiques.
Le deuxième volet de l’étude compare les performances des méthodes de modélisation conventionnelle et asynchrone. L'approche asynchrone, qui élimine la dépendance aux données météorologiques historiques, présente des avantages potentiels dans les régions où les données d'observation sont limitées ou peu fiables. Toutefois, elle montre des lacunes dans la représentation temporelle des événements hydrologiques, en particulier la fonte des neiges. Cette méthode souffre d’une incohérence dans la synchronisation des processus saisonniers. Cela souligne la nécessité d’intégrer une forme de synchronicité dans la méthode asynchrone, afin d'améliorer la fiabilité des projections hydrologiques.
Le troisième volet porte sur l’évaluation des impacts des changements climatiques dans 34 bassins versants du sud du Québec. Les résultats montrent une augmentation des précipitations totales et des températures, avec une transition significative des précipitations neigeuses à la pluie, une réduction de l'accumulation de neige, et un décalage des crues printanières vers des périodes plus précoces. Les projections indiquent également une augmentation de la recharge des nappes phréatiques en hiver et au printemps, tandis que l'évapotranspiration s’intensifie durant les mois plus chauds. Les résultats de cette étude fournissent des informations cruciales pour la gestion des ressources en eau dans un contexte de changements climatiques.
Ce mémoire met en évidence l’importance d’une calibration multi-variable et l’utilisation des dernières projections climatiques pour améliorer la modélisation hydrologique.},
language = {fr},
urldate = {2025-07-31},
school = {École de technologie supérieure},
author = {Talbot, Frédéric},
month = mar,
year = {2025},
keywords = {NALCMS},
}
Ce mémoire vise à améliorer la modélisation des variables hydrologiques et à évaluer les impacts des changements climatiques sur les bassins versants du Québec, en mettant l'accent sur l'application du modèle hydrologique WaSiM et les projections climatiques issues de CMIP6. La recherche se concentre sur trois aspects clés : l'optimisation de la configuration du modèle hydrologique, la comparaison entre les méthodes de modélisation conventionnelle et asynchrone, et l'évaluation des impacts des changements climatiques sur les variables hydrologiques. Dans le premier volet de l’étude, trois configurations du modèle WaSiM sont comparées. La configuration intégrant la recharge de la nappe phréatique dans la calibration des paramètres du modèle, bien que moins performante en termes de reproduction des débits observés, offre une précision supérieure dans la modélisation des variables hydrologiques internes, soulignant l’importance d’une calibration multi-variable pour limiter le phénomène d’équifinalité lors de l’optimisation du modèle et améliorer la représentation des variables hydrologiques. Le deuxième volet de l’étude compare les performances des méthodes de modélisation conventionnelle et asynchrone. L'approche asynchrone, qui élimine la dépendance aux données météorologiques historiques, présente des avantages potentiels dans les régions où les données d'observation sont limitées ou peu fiables. Toutefois, elle montre des lacunes dans la représentation temporelle des événements hydrologiques, en particulier la fonte des neiges. Cette méthode souffre d’une incohérence dans la synchronisation des processus saisonniers. Cela souligne la nécessité d’intégrer une forme de synchronicité dans la méthode asynchrone, afin d'améliorer la fiabilité des projections hydrologiques. Le troisième volet porte sur l’évaluation des impacts des changements climatiques dans 34 bassins versants du sud du Québec. Les résultats montrent une augmentation des précipitations totales et des températures, avec une transition significative des précipitations neigeuses à la pluie, une réduction de l'accumulation de neige, et un décalage des crues printanières vers des périodes plus précoces. Les projections indiquent également une augmentation de la recharge des nappes phréatiques en hiver et au printemps, tandis que l'évapotranspiration s’intensifie durant les mois plus chauds. Les résultats de cette étude fournissent des informations cruciales pour la gestion des ressources en eau dans un contexte de changements climatiques. Ce mémoire met en évidence l’importance d’une calibration multi-variable et l’utilisation des dernières projections climatiques pour améliorer la modélisation hydrologique.
Antagonistic climate-land use change interactions shape future distributions of a temperate snake at the northern range limit.
Gómez-Sánchez, A.; and Lougheed, S. C.
Climate Change Ecology, 10: 100103. November 2025.
Paper
doi
link
bibtex
abstract
@article{gomez-sanchez_antagonistic_2025,
title = {Antagonistic climate-land use change interactions shape future distributions of a temperate snake at the northern range limit},
volume = {10},
issn = {2666-9005},
url = {https://www.sciencedirect.com/science/article/pii/S2666900525000127},
doi = {10.1016/j.ecochg.2025.100103},
abstract = {Climate change presents a substantial threat to biodiversity, driving shifts in species distributions both independently and through interactions with land use change. In Canada, 77 \% of reptile species are considered at risk, especially near the Canada-U.S. border, where most species are at the northern range limit and where land use changes have been most pronounced. Climate change is expected to impact reptiles in this region, including snakes; however, how it will interact with land use change to affect snake distributions remains uncertain. Here, we used ensemble models, derived from three different SDM models, to investigate the potential effects of climate-land cover/use interactions on the future distribution of range-edge populations of a large threatened colubrid in Canada, Gray ratsnakes (Pantherophis spiloides). We showed climate and land cover/use change have an antagonistic effect on future environmental suitability, with greater net gains in suitability from climate alone (37–85 \%) compared to gains from the combined model (35–81 \%). Our study revealed that climate change may benefit temperate snakes, like gray ratsnakes, leading to a northward range-edge shift, but land use change may prevent colonization of new areas and persistence in areas of their current range. Our models showed that the Frontenac Arch is projected to be a key region for gray ratsnake persistence under climate change as it will mostly remain suitable due to the forest cover. These findings highlight the need for protection and restoration of habitat to help mitigate the negative effects of climate change for ratsnakes and many other similar species in Canada.},
urldate = {2026-05-27},
journal = {Climate Change Ecology},
author = {Gómez-Sánchez, Andrea and Lougheed, Stephen C.},
month = nov,
year = {2025},
keywords = {Terrestrial Ecoregions (Wiken 2011)},
pages = {100103},
}
Climate change presents a substantial threat to biodiversity, driving shifts in species distributions both independently and through interactions with land use change. In Canada, 77 % of reptile species are considered at risk, especially near the Canada-U.S. border, where most species are at the northern range limit and where land use changes have been most pronounced. Climate change is expected to impact reptiles in this region, including snakes; however, how it will interact with land use change to affect snake distributions remains uncertain. Here, we used ensemble models, derived from three different SDM models, to investigate the potential effects of climate-land cover/use interactions on the future distribution of range-edge populations of a large threatened colubrid in Canada, Gray ratsnakes (Pantherophis spiloides). We showed climate and land cover/use change have an antagonistic effect on future environmental suitability, with greater net gains in suitability from climate alone (37–85 %) compared to gains from the combined model (35–81 %). Our study revealed that climate change may benefit temperate snakes, like gray ratsnakes, leading to a northward range-edge shift, but land use change may prevent colonization of new areas and persistence in areas of their current range. Our models showed that the Frontenac Arch is projected to be a key region for gray ratsnake persistence under climate change as it will mostly remain suitable due to the forest cover. These findings highlight the need for protection and restoration of habitat to help mitigate the negative effects of climate change for ratsnakes and many other similar species in Canada.
Application of fin tissue for nonlethal stable isotope analysis of small-bodied fishes.
Wilson, W. M.; Rogosch, J. S.; Collins, S. F.; Durham, B. W.; Mayes, K. B.; and Robertson, S. M.
Environmental Biology of Fishes, 108(12): 2181–2198. December 2025.
Paper
doi
link
bibtex
abstract
@article{wilson_application_2025,
title = {Application of fin tissue for nonlethal stable isotope analysis of small-bodied fishes},
volume = {108},
issn = {1573-5133},
url = {https://doi.org/10.1007/s10641-025-01755-y},
doi = {10.1007/s10641-025-01755-y},
abstract = {Stable isotopes are commonly used to characterize food web structure and resource use by aquatic organisms. White muscle is generally preferred for stable isotope analysis of fishes. However, obtaining white muscle tissue typically requires lethal take or invasive sampling techniques, which are undesirable for small-bodied species or those of conservation concern. We assessed the use of fish fin as a nonlethal alternative to muscle tissue for stable isotope analysis of four small-bodied fishes native to the upper Red River drainage of Texas and Oklahoma, USA: plains minnow Hybognathus placitus, prairie chub Macrhybopsis australis, Red River shiner Alburnops bairdi, and Red River pupfish Cyprinodon rubrofluviatilis. Fin isotope values were strong predictors of both δ15N and δ13C muscle isotope values (ANCOVA: δ15N: F1,451 = 5312.09, P {\textless} 0.001; δ13C: F1,451 = 7864.39, P {\textless} 0.001), although isotopic composition varied among species for δ13C (F3,451 = 4.29, P {\textless} 0.01). Species-specific regression models indicated positive linear relationships between fin and muscle isotope values (δ15N: P {\textless} 0.001, R2 ≥ 0.80; δ13C: P {\textless} 0.001, R2 ≥ 0.83) that did not vary significantly with body size or age of individuals. We suggest minimum total length thresholds for least destructive fin clipping at 70 mm, 62 mm, and 48 mm for plains minnow, prairie chub, and Red River pupfish, respectively. Nonlethal fin clipping may not be viable for Red River shiner within the size range reported here as multiple fins were required for routine analysis. Overall, we conclude that fin tissue may be used for δ15N and δ13C assessments to mitigate lethal take of imperiled, small-bodied fishes.},
language = {en},
number = {12},
urldate = {2026-01-21},
journal = {Environmental Biology of Fishes},
author = {Wilson, Wade M. and Rogosch, Jane S. and Collins, Scott F. and Durham, Bart W. and Mayes, Kevin B. and Robertson, Sarah M.},
month = dec,
year = {2025},
keywords = {Lakes \& Rivers},
pages = {2181--2198},
}
Stable isotopes are commonly used to characterize food web structure and resource use by aquatic organisms. White muscle is generally preferred for stable isotope analysis of fishes. However, obtaining white muscle tissue typically requires lethal take or invasive sampling techniques, which are undesirable for small-bodied species or those of conservation concern. We assessed the use of fish fin as a nonlethal alternative to muscle tissue for stable isotope analysis of four small-bodied fishes native to the upper Red River drainage of Texas and Oklahoma, USA: plains minnow Hybognathus placitus, prairie chub Macrhybopsis australis, Red River shiner Alburnops bairdi, and Red River pupfish Cyprinodon rubrofluviatilis. Fin isotope values were strong predictors of both δ15N and δ13C muscle isotope values (ANCOVA: δ15N: F1,451 = 5312.09, P \textless 0.001; δ13C: F1,451 = 7864.39, P \textless 0.001), although isotopic composition varied among species for δ13C (F3,451 = 4.29, P \textless 0.01). Species-specific regression models indicated positive linear relationships between fin and muscle isotope values (δ15N: P \textless 0.001, R2 ≥ 0.80; δ13C: P \textless 0.001, R2 ≥ 0.83) that did not vary significantly with body size or age of individuals. We suggest minimum total length thresholds for least destructive fin clipping at 70 mm, 62 mm, and 48 mm for plains minnow, prairie chub, and Red River pupfish, respectively. Nonlethal fin clipping may not be viable for Red River shiner within the size range reported here as multiple fins were required for routine analysis. Overall, we conclude that fin tissue may be used for δ15N and δ13C assessments to mitigate lethal take of imperiled, small-bodied fishes.
Assessing Climate and Watershed Controls on Rain-on-Snow Runoff Using XGBoost-SHAP Explainable AI (XAI).
Aryal, Y.
Geosciences, 15(12): 467. December 2025.
Publisher: Multidisciplinary Digital Publishing Institute
Paper
doi
link
bibtex
abstract
@article{aryal_assessing_2025,
title = {Assessing {Climate} and {Watershed} {Controls} on {Rain}-on-{Snow} {Runoff} {Using} {XGBoost}-{SHAP} {Explainable} {AI} ({XAI})},
volume = {15},
copyright = {http://creativecommons.org/licenses/by/3.0/},
issn = {2076-3263},
url = {https://www.mdpi.com/2076-3263/15/12/467},
doi = {10.3390/geosciences15120467},
abstract = {Rain-on-snow (ROS) events significantly impact hydrological processes in snowy regions, yet their seasonal drivers remain poorly understood, particularly in low-elevation and low-gradient catchments. This study uses an XGBoost-SHAP explainable artificial intelligence (XAI) model to analyze meteorological and watershed controls on ROS runoff in the Laurentian Great Lakes region. We used daily discharge, precipitation, temperature, and snow depth data from 2000 to 2023, available from HYSETS, to identify ROS runoff. The XGBoost model’s performance for predicting ROS runoff was higher in winter (R2 = 0.65, Nash–Sutcliffe = 0.59) than in spring (R2 = 0.56, Nash–Sutcliffe = 0.49), indicating greater predictability in colder months. The results reveal that rainfall and temperature dominated ROS runoff generation, jointly explaining more than 60\% of total model importance, while snow depth accounted for 8–12\% depending on season. Winter runoff is predominantly governed by climatic factors—rainfall, air temperature, and their interactions—with soil permeability and slope orientation playing secondary roles. In contrast, spring runoff shows increased sensitivity to land cover characteristics, particularly agricultural and shrub cover, as vegetation-driven processes become more influential. Snow depth effects shift from predominantly negative in winter, where snow acts as storage, to positive contributions in spring at shallow to moderate depths. ROS runoff responded positively to air temperatures exceeding approximately 2.5 °C in both winter and spring. Land cover influences on ROS runoff differ by vegetation type and season. Agricultural areas consistently increase runoff in both seasons, likely due to limited infiltration, whereas shrub-dominated regions exhibit stronger runoff enhancement in spring. The seasonal shift in dominant controls underscores the importance of accounting for land–climate interactions in predicting ROS runoff under future climate scenarios. These insights are essential for improving flood forecasting, managing water resources, and developing adaptive strategies.},
language = {en},
number = {12},
urldate = {2026-01-21},
journal = {Geosciences},
author = {Aryal, Yog},
month = dec,
year = {2025},
note = {Publisher: Multidisciplinary Digital Publishing Institute},
keywords = {NALCMS},
pages = {467},
}
Rain-on-snow (ROS) events significantly impact hydrological processes in snowy regions, yet their seasonal drivers remain poorly understood, particularly in low-elevation and low-gradient catchments. This study uses an XGBoost-SHAP explainable artificial intelligence (XAI) model to analyze meteorological and watershed controls on ROS runoff in the Laurentian Great Lakes region. We used daily discharge, precipitation, temperature, and snow depth data from 2000 to 2023, available from HYSETS, to identify ROS runoff. The XGBoost model’s performance for predicting ROS runoff was higher in winter (R2 = 0.65, Nash–Sutcliffe = 0.59) than in spring (R2 = 0.56, Nash–Sutcliffe = 0.49), indicating greater predictability in colder months. The results reveal that rainfall and temperature dominated ROS runoff generation, jointly explaining more than 60% of total model importance, while snow depth accounted for 8–12% depending on season. Winter runoff is predominantly governed by climatic factors—rainfall, air temperature, and their interactions—with soil permeability and slope orientation playing secondary roles. In contrast, spring runoff shows increased sensitivity to land cover characteristics, particularly agricultural and shrub cover, as vegetation-driven processes become more influential. Snow depth effects shift from predominantly negative in winter, where snow acts as storage, to positive contributions in spring at shallow to moderate depths. ROS runoff responded positively to air temperatures exceeding approximately 2.5 °C in both winter and spring. Land cover influences on ROS runoff differ by vegetation type and season. Agricultural areas consistently increase runoff in both seasons, likely due to limited infiltration, whereas shrub-dominated regions exhibit stronger runoff enhancement in spring. The seasonal shift in dominant controls underscores the importance of accounting for land–climate interactions in predicting ROS runoff under future climate scenarios. These insights are essential for improving flood forecasting, managing water resources, and developing adaptive strategies.
Assessing antecedent climatic and hydrological conditions and anthropogenic impacts to drive catastrophic flooding in the northeastern United States.
Aryal, A.; and Lakshmi, V.
Frontiers in Remote Sensing, 6. September 2025.
Publisher: Frontiers
Paper
doi
link
bibtex
abstract
@article{aryal_assessing_2025,
title = {Assessing antecedent climatic and hydrological conditions and anthropogenic impacts to drive catastrophic flooding in the northeastern {United} {States}},
volume = {6},
issn = {2673-6187},
url = {https://www.frontiersin.org/journals/remote-sensing/articles/10.3389/frsen.2025.1639845/full},
doi = {10.3389/frsen.2025.1639845},
abstract = {The northeastern US has been experiencing catastrophic flooding in recent years. Flooding in the region is occurring more frequently and with higher intensity, causing substantial economic losses. The flooding may be caused by changes in climatic and hydrological drivers such as extreme precipitation, rapid snowmelt, and saturated soil moisture conditions, along with impacts from human-driven interventions like changes in land cover and urban imperviousness. This study analyzes the abovementioned variables to indicate flood risk and understand whether they contribute to flooding in the Northeastern US region. This study utilized various remote sensing satellite products for analyzing variables to fulfil the study’s objectives, wherever possible, such as Terra Moderate Resolution Imaging Spectroradiometer (MODIS) maximum snow cover extent, Soil Moisture Active Passive (SMAP) soil moisture, Integrated Multi-satellitE Retrievals for the Global Precipitation Measurement (GPM) mission (IMERG) precipitation, North American Land Change Monitoring System (NALCMS) land cover, and National Land Cover Database (NLCD) urban imperviousness. The region experienced wetter antecedent soil moisture conditions ({\textgreater}0.5 m3/m3) during spring due to rapid snowmelt (seasonal decline of ∼97\%) in all the periods considered in the study. Moreover, the summer precipitation fed excess water (∼50–60 mm more rainfall than the decadal average) into wetter ground conditions, overwhelming the region’s overall hydrology and water balance and causing significant flooding. In addition, ∼1,838 sq. km. of croplands and ∼1,363 sq. km. of forests transitioned into built-up areas in a decade, increasing impervious surface and further exacerbating flooding risk in the region.},
language = {English},
urldate = {2026-01-21},
journal = {Frontiers in Remote Sensing},
author = {Aryal, Aashutosh and Lakshmi, Venkataraman},
month = sep,
year = {2025},
note = {Publisher: Frontiers},
keywords = {NALCMS},
}
The northeastern US has been experiencing catastrophic flooding in recent years. Flooding in the region is occurring more frequently and with higher intensity, causing substantial economic losses. The flooding may be caused by changes in climatic and hydrological drivers such as extreme precipitation, rapid snowmelt, and saturated soil moisture conditions, along with impacts from human-driven interventions like changes in land cover and urban imperviousness. This study analyzes the abovementioned variables to indicate flood risk and understand whether they contribute to flooding in the Northeastern US region. This study utilized various remote sensing satellite products for analyzing variables to fulfil the study’s objectives, wherever possible, such as Terra Moderate Resolution Imaging Spectroradiometer (MODIS) maximum snow cover extent, Soil Moisture Active Passive (SMAP) soil moisture, Integrated Multi-satellitE Retrievals for the Global Precipitation Measurement (GPM) mission (IMERG) precipitation, North American Land Change Monitoring System (NALCMS) land cover, and National Land Cover Database (NLCD) urban imperviousness. The region experienced wetter antecedent soil moisture conditions (\textgreater0.5 m3/m3) during spring due to rapid snowmelt (seasonal decline of ∼97%) in all the periods considered in the study. Moreover, the summer precipitation fed excess water (∼50–60 mm more rainfall than the decadal average) into wetter ground conditions, overwhelming the region’s overall hydrology and water balance and causing significant flooding. In addition, ∼1,838 sq. km. of croplands and ∼1,363 sq. km. of forests transitioned into built-up areas in a decade, increasing impervious surface and further exacerbating flooding risk in the region.
Assessing current and future areas of ecological suitability for Lutzomyia shannoni in North America.
DeWinter, S.; Nichol, G. K.; Fernandez-Prada, C.; Greer, A. L.; Weese, J. S.; and Clow, K. M.
Parasites & Vectors, 18(1): 154. April 2025.
Paper
doi
link
bibtex
abstract
@article{dewinter_assessing_2025,
title = {Assessing current and future areas of ecological suitability for {Lutzomyia} shannoni in {North} {America}},
volume = {18},
issn = {1756-3305},
url = {https://doi.org/10.1186/s13071-025-06781-4},
doi = {10.1186/s13071-025-06781-4},
abstract = {In the Americas, sand flies of the Lutzomyia genus are the vectors of pathogens of human and animal health significance. Lutzomyia shannoni is suspected to transmit vesicular stomatitis virus, along with Leishmania mexicana and Leishmania infantum (causative agents of leishmaniases). Despite the suspected vector potential of Lu. shannoni, significant knowledge gaps remain, including how ongoing climate changes could facilitate their range expansion. The objectives of this study were to predict the current and future ecological suitability of regions across North America for Lu. shannoni and to identify variables driving ecological suitability.},
language = {en},
number = {1},
urldate = {2025-07-31},
journal = {Parasites \& Vectors},
author = {DeWinter, Sydney and Nichol, Grace K. and Fernandez-Prada, Christopher and Greer, Amy L. and Weese, J. Scott and Clow, Katie M.},
month = apr,
year = {2025},
keywords = {Terrestrial Ecoregions},
pages = {154},
}
In the Americas, sand flies of the Lutzomyia genus are the vectors of pathogens of human and animal health significance. Lutzomyia shannoni is suspected to transmit vesicular stomatitis virus, along with Leishmania mexicana and Leishmania infantum (causative agents of leishmaniases). Despite the suspected vector potential of Lu. shannoni, significant knowledge gaps remain, including how ongoing climate changes could facilitate their range expansion. The objectives of this study were to predict the current and future ecological suitability of regions across North America for Lu. shannoni and to identify variables driving ecological suitability.
Assessing shifting technology in genetic monitoring of the North American plains bison Federal conservation herds.
Zimmerman, S. J.; Giglio, R.; Geremia, C.; Jones, L.; McCann, B.; Smyser, T. J.; Moynahan, B. J.; and Oyler-McCance, S. J.
Conservation Genetics, 26(4): 657–675. August 2025.
Paper
doi
link
bibtex
abstract
@article{zimmerman_assessing_2025,
title = {Assessing shifting technology in genetic monitoring of the {North} {American} plains bison {Federal} conservation herds},
volume = {26},
issn = {1572-9737},
url = {https://doi.org/10.1007/s10592-025-01694-2},
doi = {10.1007/s10592-025-01694-2},
abstract = {Human expansion is a major driver of both declining wildlife abundance and the contraction of species’ distributions, increasing the risk of genetic erosion and the need for genetic monitoring. Rapidly advancing technology has expanded the types of genetic data that are available for wildlife conservation. However, inferences from different genetic markers could result in different management decisions and, thus, must be considered carefully. Rebounding from near extinction in the early 1900s, the majority of North American plains bison (Bison bison bison) are managed as small and isolated herds. Microsatellite-based analyses have been used to inform management of the US Federal bison conservation herds since the early 2000s. Transitioning from monitoring with tens of multiallelic loci (e.g., microsatellite loci) to thousands of biallelic loci (e.g., single nucleotide polymorphisms [SNPs]) could increase genotyping efficiency and improve the precision of population genetic inference but would require an understanding of the inferential differences between genetic marker types. We compared microsatellite-based measures of genetic diversity, differentiation, and population structure for 20 bison conservation herds (17 Federal, 1 Tribal, 2 Canadian) to inference from SNP-based analyses for the Tribal herd and 15 of the Federal herds. Data from both genetic marker types found that all herds have remarkably high genetic diversity given the severity of the bottleneck from which these populations recovered, and that population structure was consistent with founding histories. Importantly, SNPs had greater power to describe differences in genetic diversity and groups of related herds, but only if analyses are based on 250 or more loci. Overall, we found that microsatellite and SNP data can provide comparable conservation insight, but SNPs must be carefully selected to ensure continuity in genetic monitoring and to achieve the increased precision in genetic diversity and differentiation among herds that we observed in this study.},
language = {en},
number = {4},
urldate = {2025-07-31},
journal = {Conservation Genetics},
author = {Zimmerman, Shawna J. and Giglio, Rachael and Geremia, Chris and Jones, Lee and McCann, Blake and Smyser, Timothy J. and Moynahan, Brendan J. and Oyler-McCance, Sara J.},
month = aug,
year = {2025},
keywords = {Political Boundaries},
pages = {657--675},
}
Human expansion is a major driver of both declining wildlife abundance and the contraction of species’ distributions, increasing the risk of genetic erosion and the need for genetic monitoring. Rapidly advancing technology has expanded the types of genetic data that are available for wildlife conservation. However, inferences from different genetic markers could result in different management decisions and, thus, must be considered carefully. Rebounding from near extinction in the early 1900s, the majority of North American plains bison (Bison bison bison) are managed as small and isolated herds. Microsatellite-based analyses have been used to inform management of the US Federal bison conservation herds since the early 2000s. Transitioning from monitoring with tens of multiallelic loci (e.g., microsatellite loci) to thousands of biallelic loci (e.g., single nucleotide polymorphisms [SNPs]) could increase genotyping efficiency and improve the precision of population genetic inference but would require an understanding of the inferential differences between genetic marker types. We compared microsatellite-based measures of genetic diversity, differentiation, and population structure for 20 bison conservation herds (17 Federal, 1 Tribal, 2 Canadian) to inference from SNP-based analyses for the Tribal herd and 15 of the Federal herds. Data from both genetic marker types found that all herds have remarkably high genetic diversity given the severity of the bottleneck from which these populations recovered, and that population structure was consistent with founding histories. Importantly, SNPs had greater power to describe differences in genetic diversity and groups of related herds, but only if analyses are based on 250 or more loci. Overall, we found that microsatellite and SNP data can provide comparable conservation insight, but SNPs must be carefully selected to ensure continuity in genetic monitoring and to achieve the increased precision in genetic diversity and differentiation among herds that we observed in this study.
Assessing spatial distribution and quantification of native trees in Saskatchewan’s prairie landscape using remote sensing techniques.
Shafeian, E.; , B. J.; , K. W.; ; and Laroque, C. P.
European Journal of Remote Sensing, 58(1): 2438638. December 2025.
Publisher: Taylor & Francis _eprint: https://doi.org/10.1080/22797254.2024.2438638
Paper
doi
link
bibtex
abstract
@article{shafeian_assessing_2025,
title = {Assessing spatial distribution and quantification of native trees in {Saskatchewan}’s prairie landscape using remote sensing techniques},
volume = {58},
issn = {NULL},
url = {https://doi.org/10.1080/22797254.2024.2438638},
doi = {10.1080/22797254.2024.2438638},
abstract = {The importance of trees in non-forest landscapes has been the focus of only a few studies. However, these trees provide many important ecosystem services. In this study, we mapped and quantified these trees using Sentinel-2 (S2) and very high-resolution (VHR) Google satellite imagery without any field campaigns. We performed a Random Forest (RF) classification to map the spatial distribution of native trees in different scenarios. The optimal model showed an overall accuracy and kappa of 0.99 and 0.98, respectively. We mapped 40,500 km2 of tree cover, including native tree cover (approximately 29,565 km2 ≈10.5\%), excluding plantations, regional and provincial parks, and water bodies in the Canadian prairie region of Saskatchewan. According to our results, the highest numbers of native trees were found in the eastern and northwestern parts of the study area – cluster “BLK\_1” and the “Black” soil zone, with total cover of 5,388 and 13,233 km2, respectively. The lowest numbers of native trees were found in the southwest side of the study area – cluster “BRN\_6” and the “Brown” soil zone, with total cover of 2.38 and 979.5 km2, respectively. This research is important as detecting and quantifying native trees is an integral part of studies on carbon sequestration, economics, and effective management strategies.},
number = {1},
urldate = {2025-05-08},
journal = {European Journal of Remote Sensing},
author = {Shafeian, Elham and , Bryan J., Mood and , Kenneth W., Belcher and and Laroque, Colin P.},
month = dec,
year = {2025},
note = {Publisher: Taylor \& Francis
\_eprint: https://doi.org/10.1080/22797254.2024.2438638},
keywords = {NALCMS},
pages = {2438638},
}
The importance of trees in non-forest landscapes has been the focus of only a few studies. However, these trees provide many important ecosystem services. In this study, we mapped and quantified these trees using Sentinel-2 (S2) and very high-resolution (VHR) Google satellite imagery without any field campaigns. We performed a Random Forest (RF) classification to map the spatial distribution of native trees in different scenarios. The optimal model showed an overall accuracy and kappa of 0.99 and 0.98, respectively. We mapped 40,500 km2 of tree cover, including native tree cover (approximately 29,565 km2 ≈10.5%), excluding plantations, regional and provincial parks, and water bodies in the Canadian prairie region of Saskatchewan. According to our results, the highest numbers of native trees were found in the eastern and northwestern parts of the study area – cluster “BLK_1” and the “Black” soil zone, with total cover of 5,388 and 13,233 km2, respectively. The lowest numbers of native trees were found in the southwest side of the study area – cluster “BRN_6” and the “Brown” soil zone, with total cover of 2.38 and 979.5 km2, respectively. This research is important as detecting and quantifying native trees is an integral part of studies on carbon sequestration, economics, and effective management strategies.
Assessing the influence of conservation implementation on water quality during surface runoff events at edge-of-field monitoring sites located in the Laurentian Great Lakes basin.
Hanrahan, B. R.; Diebel, M. W.; Carvin, R. B.; Dobrowolski, E. G.; Hardebeck, M. J.; Kowalczk, A. J.; Toussant, C. A.; and Komiskey, M. J.
Journal of Soil and Water Conservation, 80(6): 654–678. November 2025.
Publisher: Taylor & Francis _eprint: https://doi.org/10.1080/00224561.2025.2582435
Paper
doi
link
bibtex
abstract
@article{hanrahan_assessing_2025,
title = {Assessing the influence of conservation implementation on water quality during surface runoff events at edge-of-field monitoring sites located in the {Laurentian} {Great} {Lakes} basin},
volume = {80},
issn = {0022-4561},
url = {https://doi.org/10.1080/00224561.2025.2582435},
doi = {10.1080/00224561.2025.2582435},
abstract = {The Laurentian Great Lakes are a vital freshwater resource in the United States, and nonpoint source (NPS) nutrient pollution, specifically phosphorus (P) and nitrogen (N), from agricultural land use continues to negatively impact water quality throughout the Great Lakes basin. One focus of the Great Lakes Restoration Initiative (GLRI), a mechanism to coordinate conservation efforts in the Great Lakes that began in 2010, is reducing NPS nutrient pollution through the implementation of conservation practices in priority watersheds (Genesee River, Fox River, Maumee River, and Saginaw River). As part of GLRI efforts, the objective of the study presented here was to evaluate the effects of conservation implementation, specifically increasing vegetative cover on fields and in primary flowpaths through perennial or cover crop planting and grassed waterways, on surface-runoff water quality at 12 agricultural fields (six paired and six unpaired) located in priority watersheds. We determined the percentage difference in mean event response variables between the periods before and after conservation implementation at individual sites, describing patterns across sites to synthesize lessons learned from these GLRI evaluations. Generally, we found that mean event flow-weighted concentration (FWC) and yield (kilograms per hectare) decreased for suspended sediment (SS) and nitrate (NO3–-N) across many sites. Mean event FWC and yield for total P (TP) showed mixed results across sites, while mean event FWC and yield for orthophosphate generally increased across sites. These results indicate that perennial or cover crop planting and grassed waterways effectively reduce SS and NO3–-N losses in surface runoff from agricultural fields, but mitigating TP and dissolved P losses remains a challenge.},
number = {6},
urldate = {2026-05-27},
journal = {Journal of Soil and Water Conservation},
author = {Hanrahan, Brittany R. and Diebel, Matthew W. and Carvin, Rebecca B. and Dobrowolski, Edward G. and Hardebeck, Matthew J. and Kowalczk, Andrew J. and Toussant, Chad A. and Komiskey, Matthew J.},
month = nov,
year = {2025},
note = {Publisher: Taylor \& Francis
\_eprint: https://doi.org/10.1080/00224561.2025.2582435},
keywords = {Political Boundaries},
pages = {654--678},
}
The Laurentian Great Lakes are a vital freshwater resource in the United States, and nonpoint source (NPS) nutrient pollution, specifically phosphorus (P) and nitrogen (N), from agricultural land use continues to negatively impact water quality throughout the Great Lakes basin. One focus of the Great Lakes Restoration Initiative (GLRI), a mechanism to coordinate conservation efforts in the Great Lakes that began in 2010, is reducing NPS nutrient pollution through the implementation of conservation practices in priority watersheds (Genesee River, Fox River, Maumee River, and Saginaw River). As part of GLRI efforts, the objective of the study presented here was to evaluate the effects of conservation implementation, specifically increasing vegetative cover on fields and in primary flowpaths through perennial or cover crop planting and grassed waterways, on surface-runoff water quality at 12 agricultural fields (six paired and six unpaired) located in priority watersheds. We determined the percentage difference in mean event response variables between the periods before and after conservation implementation at individual sites, describing patterns across sites to synthesize lessons learned from these GLRI evaluations. Generally, we found that mean event flow-weighted concentration (FWC) and yield (kilograms per hectare) decreased for suspended sediment (SS) and nitrate (NO3–-N) across many sites. Mean event FWC and yield for total P (TP) showed mixed results across sites, while mean event FWC and yield for orthophosphate generally increased across sites. These results indicate that perennial or cover crop planting and grassed waterways effectively reduce SS and NO3–-N losses in surface runoff from agricultural fields, but mitigating TP and dissolved P losses remains a challenge.
BCUB – a large-sample ungauged basin attribute dataset for British Columbia, Canada.
Kovacek, D.; and Weijs, S.
Earth System Science Data, 17(1): 259–275. January 2025.
Publisher: Copernicus GmbH
Paper
doi
link
bibtex
abstract
@article{kovacek_bcub_2025,
title = {{BCUB} – a large-sample ungauged basin attribute dataset for {British} {Columbia}, {Canada}},
volume = {17},
issn = {1866-3508},
url = {https://essd.copernicus.org/articles/17/259/2025/},
doi = {10.5194/essd-17-259-2025},
abstract = {The British Columbia Ungauged Basin (BCUB) dataset is an open-source, extensible dataset of attributes describing terrain, soil, land cover, and climate indices of over 1.2 million ungauged catchments in British Columbia, Canada, including trans-boundary regions. The attributes included in the dataset are similar to those found in the large-sample hydrology literature for their association with hydrological processes. The BCUB database is intended to support water resources research and practice, namely monitoring network analysis studies, or hydrological modelling where basin characterization is used for model calibration. The dataset and the complete workflow to collect and process input data, to derive stream networks, and to delineate sub-basins and extract attributes, are available under a Creative Commons BY 4.0 license. The DOI link for the BCUB dataset is https://doi.org/10.5683/SP3/JNKZVT (Kovacek and Weijs, 2023).},
language = {English},
number = {1},
urldate = {2025-05-08},
journal = {Earth System Science Data},
author = {Kovacek, Daniel and Weijs, Steven},
month = jan,
year = {2025},
note = {Publisher: Copernicus GmbH},
keywords = {NALCMS},
pages = {259--275},
}
The British Columbia Ungauged Basin (BCUB) dataset is an open-source, extensible dataset of attributes describing terrain, soil, land cover, and climate indices of over 1.2 million ungauged catchments in British Columbia, Canada, including trans-boundary regions. The attributes included in the dataset are similar to those found in the large-sample hydrology literature for their association with hydrological processes. The BCUB database is intended to support water resources research and practice, namely monitoring network analysis studies, or hydrological modelling where basin characterization is used for model calibration. The dataset and the complete workflow to collect and process input data, to derive stream networks, and to delineate sub-basins and extract attributes, are available under a Creative Commons BY 4.0 license. The DOI link for the BCUB dataset is https://doi.org/10.5683/SP3/JNKZVT (Kovacek and Weijs, 2023).
Baseline survey of protoporphyrinogen oxidase inhibitor-resistant kochia (Bassia scoparia) in western Canada.
Geddes, C. M.; Pittman, M. M.; Sharpe, S. M.; and Leeson, J. Y.
Canadian Journal of Plant Science, 105: 1–6. January 2025.
Publisher: NRC Research Press
Paper
doi
link
bibtex
abstract
@article{geddes_baseline_2025,
title = {Baseline survey of protoporphyrinogen oxidase inhibitor-resistant kochia ({Bassia} scoparia) in western {Canada}},
volume = {105},
issn = {0008-4220},
url = {https://cdnsciencepub.com/doi/full/10.1139/cjps-2024-0219},
doi = {10.1139/cjps-2024-0219},
abstract = {Kochia (Bassia scoparia (L.) A.J. Scott) is a problematic tumbleweed that has been reported resistant to five herbicide sites-of-action. Recently, protoporphyrinogen oxidase (PPO) inhibitor-resistant kochia was documented in Saskatchewan (2021) and North Dakota (2022). However, its frequency and distribution remain unknown. Screening with saflufenacil (50 g ai ha−1) revealed PPO inhibitor resistance in two of 14 grower-submitted samples, but not in 882 samples from randomized-stratified surveys of Manitoba (2018), Saskatchewan (2019), and Alberta (2021). To date, PPO inhibitor-resistant kochia has been confirmed in two municipalities in western Canada: the Rural Municipality of Newcombe in Saskatchewan and Forty Mile County in Alberta.},
urldate = {2025-07-31},
journal = {Canadian Journal of Plant Science},
author = {Geddes, Charles M. and Pittman, Mattea M. and Sharpe, Shaun M. and Leeson, Julia Y.},
month = jan,
year = {2025},
note = {Publisher: NRC Research Press},
keywords = {Lakes \& Rivers},
pages = {1--6},
}
Kochia (Bassia scoparia (L.) A.J. Scott) is a problematic tumbleweed that has been reported resistant to five herbicide sites-of-action. Recently, protoporphyrinogen oxidase (PPO) inhibitor-resistant kochia was documented in Saskatchewan (2021) and North Dakota (2022). However, its frequency and distribution remain unknown. Screening with saflufenacil (50 g ai ha−1) revealed PPO inhibitor resistance in two of 14 grower-submitted samples, but not in 882 samples from randomized-stratified surveys of Manitoba (2018), Saskatchewan (2019), and Alberta (2021). To date, PPO inhibitor-resistant kochia has been confirmed in two municipalities in western Canada: the Rural Municipality of Newcombe in Saskatchewan and Forty Mile County in Alberta.
Biodiversity monitoring at scale with foundation models.
Gillespie, L. E.
Ph.D. Thesis, Stanford University, Stanford, California, July 2025.
Paper
link
bibtex
abstract
@phdthesis{gillespie_biodiversity_2025,
address = {Stanford, California},
type = {Doctor of {Philosophy}},
title = {Biodiversity monitoring at scale with foundation models},
url = {https://purl.stanford.edu/gz526zj7191},
abstract = {Climate and land use change have radically altered biodiversity worldwide, spurring the need for new high-resolution methods to monitor biodiversity at a global scale. Meanwhile, the recent advent ...},
language = {English},
urldate = {2026-06-01},
school = {Stanford University},
author = {Gillespie, Lauren Estelle},
month = jul,
year = {2025},
}
Climate and land use change have radically altered biodiversity worldwide, spurring the need for new high-resolution methods to monitor biodiversity at a global scale. Meanwhile, the recent advent ...
Catchment Attributes and MEteorology for Large-Sample SPATially distributed analysis (CAMELS-SPAT): streamflow observations, forcing data and geospatial data for hydrologic studies across North America.
Knoben, W. J. M.; Thébault, C.; Keshavarz, K.; Torres-Rojas, L.; Chaney, N. W.; Pietroniro, A.; and Clark, M. P.
Hydrology and Earth System Sciences, 29(20): 5791–5833. October 2025.
Publisher: Copernicus GmbH
Paper
doi
link
bibtex
abstract
@article{knoben_catchment_2025,
title = {Catchment {Attributes} and {MEteorology} for {Large}-{Sample} {SPATially} distributed analysis ({CAMELS}-{SPAT}): streamflow observations, forcing data and geospatial data for hydrologic studies across {North} {America}},
volume = {29},
issn = {1027-5606},
shorttitle = {Catchment {Attributes} and {MEteorology} for {Large}-{Sample} {SPATially} distributed analysis ({CAMELS}-{SPAT})},
url = {https://hess.copernicus.org/articles/29/5791/2025/},
doi = {10.5194/hess-29-5791-2025},
abstract = {We build on the existing Catchment Attributes and MEteorology for Large-sample Studies (CAMELS) dataset to present a new dataset aimed at hydrologic studies across North America, with a particular focus on facilitating spatially distributed studies. The dataset includes basin outlines, streamflow observations, meteorological data and geospatial data for 1426 basins in the US and Canada. To facilitate a wide variety of studies, we provide the basin outlines at a lumped and semi-distributed resolution; streamflow observations at daily and hourly time steps; variables suitable for running a wide range of models obtained and derived from different meteorological datasets at daily (one dataset) and hourly (three datasets) time steps; and geospatial data and derived attributes from 11 different datasets that broadly cover climatic conditions, vegetation properties, land use and subsurface characteristics. Forcing data are provided at their original gridded resolution, as well as averaged at the basin and sub-basin level. Geospatial data are provided as maps per basin, as well as summarized as catchment attributes at the basin and sub-basin level with various statistics. Attributes are further complemented with statistics derived from the forcing data and streamflow and focus on quantifying the variability of natural processes and catchment characteristics in space and time. Our goal with this dataset is to build upon existing large-sample datasets and provide the means for a more detailed investigation of hydrologic behaviour across large geographical scales. In particular, we hope that this dataset provides others with the data needed to implement a wide range of modelling approaches and to investigate the impact of basin heterogeneity on hydrologic behaviour and similarity. The CAMELS-SPAT (Catchment Attributes and MEteorology for Large-Sample SPATially distributed analysis) dataset is available at https://doi.org/10.20383/103.01306 (Knoben et al., 2025).},
language = {English},
number = {20},
urldate = {2026-01-21},
journal = {Hydrology and Earth System Sciences},
author = {Knoben, Wouter J. M. and Thébault, Cyril and Keshavarz, Kasra and Torres-Rojas, Laura and Chaney, Nathaniel W. and Pietroniro, Alain and Clark, Martyn P.},
month = oct,
year = {2025},
note = {Publisher: Copernicus GmbH},
keywords = {Political Boundaries},
pages = {5791--5833},
}
We build on the existing Catchment Attributes and MEteorology for Large-sample Studies (CAMELS) dataset to present a new dataset aimed at hydrologic studies across North America, with a particular focus on facilitating spatially distributed studies. The dataset includes basin outlines, streamflow observations, meteorological data and geospatial data for 1426 basins in the US and Canada. To facilitate a wide variety of studies, we provide the basin outlines at a lumped and semi-distributed resolution; streamflow observations at daily and hourly time steps; variables suitable for running a wide range of models obtained and derived from different meteorological datasets at daily (one dataset) and hourly (three datasets) time steps; and geospatial data and derived attributes from 11 different datasets that broadly cover climatic conditions, vegetation properties, land use and subsurface characteristics. Forcing data are provided at their original gridded resolution, as well as averaged at the basin and sub-basin level. Geospatial data are provided as maps per basin, as well as summarized as catchment attributes at the basin and sub-basin level with various statistics. Attributes are further complemented with statistics derived from the forcing data and streamflow and focus on quantifying the variability of natural processes and catchment characteristics in space and time. Our goal with this dataset is to build upon existing large-sample datasets and provide the means for a more detailed investigation of hydrologic behaviour across large geographical scales. In particular, we hope that this dataset provides others with the data needed to implement a wide range of modelling approaches and to investigate the impact of basin heterogeneity on hydrologic behaviour and similarity. The CAMELS-SPAT (Catchment Attributes and MEteorology for Large-Sample SPATially distributed analysis) dataset is available at https://doi.org/10.20383/103.01306 (Knoben et al., 2025).
Clarifying Influences of Sampling Bias (Concentration) and Locational Errors (Uncertainties) on Precision or Generality of Species Distribution Models.
Hanberry, B. B.
Land, 14(8): 1620. August 2025.
Publisher: Multidisciplinary Digital Publishing Institute
Paper
doi
link
bibtex
abstract
@article{hanberry_clarifying_2025,
title = {Clarifying {Influences} of {Sampling} {Bias} ({Concentration}) and {Locational} {Errors} ({Uncertainties}) on {Precision} or {Generality} of {Species} {Distribution} {Models}},
volume = {14},
copyright = {http://creativecommons.org/licenses/by/3.0/},
issn = {2073-445X},
url = {https://www.mdpi.com/2073-445X/14/8/1620},
doi = {10.3390/land14081620},
abstract = {Locational errors and sampling bias may produce unrepresentative species distribution models. To decompose the influence of errors, I modeled species distributions of 31 mammal species from georeferenced records and random samples from range maps, with potential sources of errors added or removed, using the random forests algorithm. Errors included the addition of (1) cities, (2) administrative centers, (3) records flagged as potential errors (e.g., outliers), and (4) urban records to range map samples; the removal of (5) flagged records and (6) urban records from georeferenced records; and the addition of (7) random points and (8) clustered points to georeferenced records. I also examined separation between thinned and unthinned (i.e., locally concentrated) records and ocean and land areas. Errors generally did not perturb species distributions, particularly if errors were located within species ranges. The greatest departure relative to unaltered models (mean niche overlap values of 0.96 out of 1) was due to the addition of administrative centers at a 13\% error rate. Because locational errors overall do not occur in modern georeferenced records, outliers may provide important samples from undersampled areas. Delineating land from ocean coordinates may require a land layer at the highest available resolution and buffered to match the distance of locational uncertainty for georeferenced records. Predicted areas for species distributions increased along the spectrum of models from concentrated georeferenced records, thinned records, and random samples from range maps. Species distributions modeled with all georeferenced records will have the greatest sampling concentration (to differentiate from bias, because predictive modeling is not hypothesis testing), resulting in model locational precision, whereas species distribution models from random samples of range maps will have locational generality (rather than errors). The risk of removing samples of suitable conditions is the generation of unrepresentative models whereas the benefit of sample removal is slightly more generalized models, but which also may represent overpredictions.},
language = {en},
number = {8},
urldate = {2026-01-21},
journal = {Land},
author = {Hanberry, Brice B.},
month = aug,
year = {2025},
note = {Publisher: Multidisciplinary Digital Publishing Institute},
keywords = {NALCMS},
pages = {1620},
}
Locational errors and sampling bias may produce unrepresentative species distribution models. To decompose the influence of errors, I modeled species distributions of 31 mammal species from georeferenced records and random samples from range maps, with potential sources of errors added or removed, using the random forests algorithm. Errors included the addition of (1) cities, (2) administrative centers, (3) records flagged as potential errors (e.g., outliers), and (4) urban records to range map samples; the removal of (5) flagged records and (6) urban records from georeferenced records; and the addition of (7) random points and (8) clustered points to georeferenced records. I also examined separation between thinned and unthinned (i.e., locally concentrated) records and ocean and land areas. Errors generally did not perturb species distributions, particularly if errors were located within species ranges. The greatest departure relative to unaltered models (mean niche overlap values of 0.96 out of 1) was due to the addition of administrative centers at a 13% error rate. Because locational errors overall do not occur in modern georeferenced records, outliers may provide important samples from undersampled areas. Delineating land from ocean coordinates may require a land layer at the highest available resolution and buffered to match the distance of locational uncertainty for georeferenced records. Predicted areas for species distributions increased along the spectrum of models from concentrated georeferenced records, thinned records, and random samples from range maps. Species distributions modeled with all georeferenced records will have the greatest sampling concentration (to differentiate from bias, because predictive modeling is not hypothesis testing), resulting in model locational precision, whereas species distribution models from random samples of range maps will have locational generality (rather than errors). The risk of removing samples of suitable conditions is the generation of unrepresentative models whereas the benefit of sample removal is slightly more generalized models, but which also may represent overpredictions.
Climate-sensitive models of tree mortality based on lifetime analysis and irregular permanent-plot remeasurements.
Fortin, M.; Riofrío, J.; de Melo, L. C.; Ashiq, M. W.; Sharma, M.; Howard, C.; and Eskelson, B. N.
Canadian Journal of Forest Research, 55: 1–15. January 2025.
Publisher: NRC Research Press
Paper
doi
link
bibtex
abstract
@article{fortin_climate-sensitive_2025,
title = {Climate-sensitive models of tree mortality based on lifetime analysis and irregular permanent-plot remeasurements},
volume = {55},
issn = {0045-5067},
url = {https://cdnsciencepub.com/doi/10.1139/cjfr-2024-0205},
doi = {10.1139/cjfr-2024-0205},
abstract = {Climate change has driven forest growth modellers to develop different climate sensitivity implementations (CSIs) for their models. Among others, a model can rely on annual climate variables or average climate variables, such as 30-year normals. The novelty of this study was to develop a framework based on lifetime analysis to enable annual or average CSI in empirical models of tree mortality. Using this framework, we compared models of individual tree mortality based on an annual CSI with similar models relying on two average CSIs, one using interval-averaged climate variables, and the other, 30-year normals. We fitted these models to permanent-plot data of eight species in Ontario and tested the effects of summer and winter temperature as well as spring and summer precipitation in the models. Our results showed that the annual CSI was not superior to the average CSIs, but could be a valid alternative for some species. Warmer winter temperature was detrimental to the survival of Betula papyrifera, Picea glauca, and Pinus strobus, whereas greater spring and summer precipitation resulted in greater mortality occurrence for Picea mariana, Pinus banksiana, and Populus tremuloides. In most cases, the effects of climate variables were contrary to our initial hypotheses. We conclude that the effects of climate on tree mortality occurrence interact with other factors such as species distribution and ecophysiology.},
urldate = {2026-05-27},
journal = {Canadian Journal of Forest Research},
author = {Fortin, Mathieu and Riofrío, José and de Melo, Lara Climaco and Ashiq, Muhammad Waseem and Sharma, Mahadev and Howard, Christina and Eskelson, Bianca N.I.},
month = jan,
year = {2025},
note = {Publisher: NRC Research Press},
keywords = {Political Boundaries},
pages = {1--15},
}
Climate change has driven forest growth modellers to develop different climate sensitivity implementations (CSIs) for their models. Among others, a model can rely on annual climate variables or average climate variables, such as 30-year normals. The novelty of this study was to develop a framework based on lifetime analysis to enable annual or average CSI in empirical models of tree mortality. Using this framework, we compared models of individual tree mortality based on an annual CSI with similar models relying on two average CSIs, one using interval-averaged climate variables, and the other, 30-year normals. We fitted these models to permanent-plot data of eight species in Ontario and tested the effects of summer and winter temperature as well as spring and summer precipitation in the models. Our results showed that the annual CSI was not superior to the average CSIs, but could be a valid alternative for some species. Warmer winter temperature was detrimental to the survival of Betula papyrifera, Picea glauca, and Pinus strobus, whereas greater spring and summer precipitation resulted in greater mortality occurrence for Picea mariana, Pinus banksiana, and Populus tremuloides. In most cases, the effects of climate variables were contrary to our initial hypotheses. We conclude that the effects of climate on tree mortality occurrence interact with other factors such as species distribution and ecophysiology.
Comparative Whole Genome Phylogeography Reveals Genetic Distinctiveness of Appalachian Populations of Boreal Songbirds.
Kimmitt, A. A.; Pegan, T. M.; Wacker, K. S.; Jones, A. W.; and Winger, B. M.
Evolutionary Applications, 18(10): e70163. 2025.
_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/eva.70163
Paper
doi
link
bibtex
abstract
@article{kimmitt_comparative_2025,
title = {Comparative {Whole} {Genome} {Phylogeography} {Reveals} {Genetic} {Distinctiveness} of {Appalachian} {Populations} of {Boreal} {Songbirds}},
volume = {18},
copyright = {© 2025 The Author(s). Evolutionary Applications published by John Wiley \& Sons Ltd.},
issn = {1752-4571},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/eva.70163},
doi = {10.1111/eva.70163},
abstract = {Intraspecific genetic diversity across a species' geographic range is relevant to adaptive potential and long-term population persistence, and identifying genetically distinct groups within species can direct management decisions focused on conserving species-level genetic diversity. Comparative phylogeography using whole genome techniques allows for investigation of whether co-distributed species exhibit shared spatial genetic differentiation at fine spatial scales, thereby facilitating a comparative approach to both landscape and conservation genetics. By sequencing over 900 low-coverage whole genomes, we evaluated the concordance of genetic structure and diversity from 12 co-occurring species of migratory birds whose breeding ranges span adjacent North American ecogeographic regions: the vast boreal forest belt and the temperate montane Appalachian forests. We detected concordant phylogeographic patterns in 11 of 12 species wherein populations from the southern Appalachians were genetically distinct from boreal belt populations. Our results reveal that small populations persisting in the southern Appalachian Mountains consistently harbor genetic diversity that is subtly distinct from much larger, widespread boreal populations of the same species. However, in most species, levels of standing genetic diversity were not significantly different between Appalachian and boreal populations despite the drastic difference in geographic extent of these populations. We found no evidence for shared signatures of selection across the genome, suggesting that the concordance of spatial genetic structure across species emerges from species-specific patterns of molecular divergence across the genome rather than parallel patterns of selection. Conservation of the Appalachian ecosystem would likely support maintenance of distinct genetic diversity in several migratory avian species with widespread distributions.},
language = {en},
number = {10},
urldate = {2026-05-27},
journal = {Evolutionary Applications},
author = {Kimmitt, Abigail A. and Pegan, Teresa M. and Wacker, Kristen S. and Jones, Andrew W. and Winger, Benjamin M.},
year = {2025},
note = {\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/eva.70163},
keywords = {Terrestrial Ecoregions (Wiken 2011)},
pages = {e70163},
}
Intraspecific genetic diversity across a species' geographic range is relevant to adaptive potential and long-term population persistence, and identifying genetically distinct groups within species can direct management decisions focused on conserving species-level genetic diversity. Comparative phylogeography using whole genome techniques allows for investigation of whether co-distributed species exhibit shared spatial genetic differentiation at fine spatial scales, thereby facilitating a comparative approach to both landscape and conservation genetics. By sequencing over 900 low-coverage whole genomes, we evaluated the concordance of genetic structure and diversity from 12 co-occurring species of migratory birds whose breeding ranges span adjacent North American ecogeographic regions: the vast boreal forest belt and the temperate montane Appalachian forests. We detected concordant phylogeographic patterns in 11 of 12 species wherein populations from the southern Appalachians were genetically distinct from boreal belt populations. Our results reveal that small populations persisting in the southern Appalachian Mountains consistently harbor genetic diversity that is subtly distinct from much larger, widespread boreal populations of the same species. However, in most species, levels of standing genetic diversity were not significantly different between Appalachian and boreal populations despite the drastic difference in geographic extent of these populations. We found no evidence for shared signatures of selection across the genome, suggesting that the concordance of spatial genetic structure across species emerges from species-specific patterns of molecular divergence across the genome rather than parallel patterns of selection. Conservation of the Appalachian ecosystem would likely support maintenance of distinct genetic diversity in several migratory avian species with widespread distributions.
Current and future ecological niche of Dermacentor similis Lado (Acari: Ixodidae) in western North America.
Nichol, G. K; Kulkarni, M. A; Dergousoff, S. J; Weese, J S.; Greer, A. L; and Clow, K. M
Journal of Medical Entomology,tjaf087. July 2025.
Paper
doi
link
bibtex
abstract
@article{nichol_current_2025,
title = {Current and future ecological niche of {Dermacentor} similis {Lado} ({Acari}: {Ixodidae}) in western {North} {America}},
issn = {0022-2585},
shorttitle = {Current and future ecological niche of {Dermacentor} similis {Lado} ({Acari}},
url = {https://doi.org/10.1093/jme/tjaf087},
doi = {10.1093/jme/tjaf087},
abstract = {Dermacentor similis Lado (Acari: Ixodidae) is a newly described tick species within western North America. These ticks were previously referred to as “western Dermacentor variabilis (Say)” and were genetically distinct from D. variabilis in eastern North America. Despite the known genetic differences, the ecology of this species was not investigated separately from eastern populations of D. variabilis. Therefore, the objectives of this study were to describe the current and future areas of ecological suitability of D. similis in western North America, and to determine the bioclimatic and environmental variables of importance for ecological suitability of this species. Twenty-nine confirmed samples of D. similis from the western United States (California, Oregon, Washington, Idaho) and Canada (British Columbia) were used in species distribution model creation via MaxEnt. Seven variables were included in the final current species distribution model of D. similis: terrestrial ecoregion, degree-days below zero degrees Celsius, Hogg’s climate moisture index, mean annual relative humidity, day of the year on which the frost-free period begins, precipitation as snow, and extreme maximum temperature over thirty years. Under current conditions, high levels of ecological suitability were observed in the Okanagan region of British Columbia, Washington (extending into Oregon and Idaho), and regions of coastal and inland California. Future ecological suitability were similar to the current ecological suitability under both climate scenarios (2041 to 2070, SSP2-4.5 and SSP3-7.0). The results of this study will inform public and animal health messaging and awareness.},
urldate = {2025-07-31},
journal = {Journal of Medical Entomology},
author = {Nichol, Grace K and Kulkarni, Manisha A and Dergousoff, Shaun J and Weese, J Scott and Greer, Amy L and Clow, Katie M},
month = jul,
year = {2025},
keywords = {Terrestrial Ecoregions},
pages = {tjaf087},
}
Dermacentor similis Lado (Acari: Ixodidae) is a newly described tick species within western North America. These ticks were previously referred to as “western Dermacentor variabilis (Say)” and were genetically distinct from D. variabilis in eastern North America. Despite the known genetic differences, the ecology of this species was not investigated separately from eastern populations of D. variabilis. Therefore, the objectives of this study were to describe the current and future areas of ecological suitability of D. similis in western North America, and to determine the bioclimatic and environmental variables of importance for ecological suitability of this species. Twenty-nine confirmed samples of D. similis from the western United States (California, Oregon, Washington, Idaho) and Canada (British Columbia) were used in species distribution model creation via MaxEnt. Seven variables were included in the final current species distribution model of D. similis: terrestrial ecoregion, degree-days below zero degrees Celsius, Hogg’s climate moisture index, mean annual relative humidity, day of the year on which the frost-free period begins, precipitation as snow, and extreme maximum temperature over thirty years. Under current conditions, high levels of ecological suitability were observed in the Okanagan region of British Columbia, Washington (extending into Oregon and Idaho), and regions of coastal and inland California. Future ecological suitability were similar to the current ecological suitability under both climate scenarios (2041 to 2070, SSP2-4.5 and SSP3-7.0). The results of this study will inform public and animal health messaging and awareness.
Distinct latitudinal gradients define Holocene fire trends across the southeastern USA.
Tsalickis, A.; Vachula, R. S.; Karmalkar, A. V.; Balascio, N. L.; and Waters, M. N.
Quaternary Science Reviews, 350: 109161. February 2025.
Paper
doi
link
bibtex
abstract
@article{tsalickis_distinct_2025,
title = {Distinct latitudinal gradients define {Holocene} fire trends across the southeastern {USA}},
volume = {350},
issn = {0277-3791},
url = {https://www.sciencedirect.com/science/article/pii/S0277379124006632},
doi = {10.1016/j.quascirev.2024.109161},
abstract = {Fire is a keystone ecological process that shapes and maintains ecosystems in the southeastern United States, and yet the paleofire history of the southeast remains relatively understudied. In this study, we conducted an extensive literature review to identify paleofire datasets in the region, and then compiled, normalized, and analyzed 15 records with varied temporal lengths. We compared these data to climate parameters from transient paleoclimate model simulations to examine the spatiotemporal variability of fire and to determine its climate drivers throughout the Holocene. Our findings are based on analyzing charcoal records in conjunction with modelled surface air temperature, precipitation, and burned area fraction during three specific time intervals: the early (12–7 ka), mid (7–4 ka), and late (4–0 ka) Holocene. We find that distinct latitudinal gradients define fire trends. We argue that precipitation is the primary factor controlling fire activity in the southeastern USA, as periods with the most pronounced trends in modelled burned area fraction correspond to times of reduced precipitation. Additionally, comparing modelled data across three southeastern regions (Southern Peninsula, Eastern Coastal Plain, and Inland) reveals that fire trends in the Southern Peninsula differ from those in the rest of the southeastern USA. A significant lack of paleofire and paleoclimate data in the southeastern USA compared to pollen-based vegetation reconstructions underscores the need for the development of new paleofire records in the region.},
urldate = {2026-05-29},
journal = {Quaternary Science Reviews},
author = {Tsalickis, Alexandra and Vachula, Richard S. and Karmalkar, Ambarish V. and Balascio, Nicholas L. and Waters, Matthew N.},
month = feb,
year = {2025},
keywords = {Terrestrial Ecoregions (Wiken 2011)},
pages = {109161},
}
Fire is a keystone ecological process that shapes and maintains ecosystems in the southeastern United States, and yet the paleofire history of the southeast remains relatively understudied. In this study, we conducted an extensive literature review to identify paleofire datasets in the region, and then compiled, normalized, and analyzed 15 records with varied temporal lengths. We compared these data to climate parameters from transient paleoclimate model simulations to examine the spatiotemporal variability of fire and to determine its climate drivers throughout the Holocene. Our findings are based on analyzing charcoal records in conjunction with modelled surface air temperature, precipitation, and burned area fraction during three specific time intervals: the early (12–7 ka), mid (7–4 ka), and late (4–0 ka) Holocene. We find that distinct latitudinal gradients define fire trends. We argue that precipitation is the primary factor controlling fire activity in the southeastern USA, as periods with the most pronounced trends in modelled burned area fraction correspond to times of reduced precipitation. Additionally, comparing modelled data across three southeastern regions (Southern Peninsula, Eastern Coastal Plain, and Inland) reveals that fire trends in the Southern Peninsula differ from those in the rest of the southeastern USA. A significant lack of paleofire and paleoclimate data in the southeastern USA compared to pollen-based vegetation reconstructions underscores the need for the development of new paleofire records in the region.
Distribución potencial del ocelote (Leopardus pardalis) en las áreas naturales protegidas de México.
Gómez Garduño, M.
Ph.D. Thesis, 2025.
Publisher: México
link
bibtex
@phdthesis{gomez_garduno_distribucion_2025,
title = {Distribución potencial del ocelote ({Leopardus} pardalis) en las áreas naturales protegidas de {México}},
author = {Gómez Garduño, Mariana},
year = {2025},
note = {Publisher: México},
keywords = {Terrestrial Ecoregions},
}
Eastern Spruce Budworm In The Great Lakes Region: Forest Regeneration, Natural Enemies, And Dispersal.
Rootes, J. M.
Ph.D. Thesis, University of Minnesota, December 2025.
Paper
link
bibtex
abstract
@phdthesis{rootes_eastern_2025,
type = {Doctor of {Philosophy}},
title = {Eastern {Spruce} {Budworm} {In} {The} {Great} {Lakes} {Region}: {Forest} {Regeneration}, {Natural} {Enemies}, {And} {Dispersal}},
shorttitle = {Eastern {Spruce} {Budworm} {In} {The} {Great} {Lakes} {Region}},
url = {https://hdl.handle.net/11299/279274},
abstract = {The eastern spruce budworm (Choristoneura fumiferana Clemens), (Lepidoptera: Tortricidae), is native to northeastern North America and feeds primarily on balsam fir (Abies balsamea (L.) Mill) and white spruce (Picea glauca (Moench) Voss). Outbreaking populations have been mapped annually in Minnesota since 1954. This dissertation examines forest regeneration in areas of northeastern Minnesota and on Isle Royale 15 years following outbreaks of spruce budworm, the natural enemy communities in both locations, and examines the potential connectedness of regional populations in Minnesota and Wisconsin by looking for evidence of dispersal over a flight season using adult trap catches and meteorological modeling. On Isle Royale, trees suffered higher mortality and negative alterations to their growth compared to similar forests in Minnesota. Those results suggest a positive correlation between moose density and adverse effects on forest regeneration in areas recovering from an outbreak of spruce budworm and support the use of wolves as predators of moose on the island to restore ecological function. Late instar larvae and pupae of spruce budworm were sampled from current outbreaks in these same locations in 2023 and 2024. Though the diversity of the parasitoid community was similar between the two locations, Isle Royale demonstrated higher rates of parasitism (18.8\% to 33.7\%) than Minnesota (10.3\% to 17.1\%), suggesting that natural enemies in both locations are capable of assisting with mediation of outbreaking spruce budworm populations. Fluctuations in populations of spruce budworm are likely related not only to natural enemy populations but dispersal of adult spruce budworms. To assess dispersal, I evaluated ten areas in northeastern Minnesota and northern Wisconsin in summer 2024 using automatic trapping methods and meteorological modeling. I found that sub-populations of spruce budworm were highly synchronized and that trap captures were predicted by captures in neighboring sites, precipitation, temperature, wind speed, and landscape composition (i.e., percent of a putative trajectory over forest or open water). Outbreaks of spruce budworm are multi-faceted, impacted by factors such as natural enemies and regional-wide dispersal, and can result in cascading effects on forest regeneration and composition.},
language = {en},
urldate = {2026-06-01},
school = {University of Minnesota},
author = {Rootes, Jessica Michelle},
month = dec,
year = {2025},
keywords = {NALCMS},
}
The eastern spruce budworm (Choristoneura fumiferana Clemens), (Lepidoptera: Tortricidae), is native to northeastern North America and feeds primarily on balsam fir (Abies balsamea (L.) Mill) and white spruce (Picea glauca (Moench) Voss). Outbreaking populations have been mapped annually in Minnesota since 1954. This dissertation examines forest regeneration in areas of northeastern Minnesota and on Isle Royale 15 years following outbreaks of spruce budworm, the natural enemy communities in both locations, and examines the potential connectedness of regional populations in Minnesota and Wisconsin by looking for evidence of dispersal over a flight season using adult trap catches and meteorological modeling. On Isle Royale, trees suffered higher mortality and negative alterations to their growth compared to similar forests in Minnesota. Those results suggest a positive correlation between moose density and adverse effects on forest regeneration in areas recovering from an outbreak of spruce budworm and support the use of wolves as predators of moose on the island to restore ecological function. Late instar larvae and pupae of spruce budworm were sampled from current outbreaks in these same locations in 2023 and 2024. Though the diversity of the parasitoid community was similar between the two locations, Isle Royale demonstrated higher rates of parasitism (18.8% to 33.7%) than Minnesota (10.3% to 17.1%), suggesting that natural enemies in both locations are capable of assisting with mediation of outbreaking spruce budworm populations. Fluctuations in populations of spruce budworm are likely related not only to natural enemy populations but dispersal of adult spruce budworms. To assess dispersal, I evaluated ten areas in northeastern Minnesota and northern Wisconsin in summer 2024 using automatic trapping methods and meteorological modeling. I found that sub-populations of spruce budworm were highly synchronized and that trap captures were predicted by captures in neighboring sites, precipitation, temperature, wind speed, and landscape composition (i.e., percent of a putative trajectory over forest or open water). Outbreaks of spruce budworm are multi-faceted, impacted by factors such as natural enemies and regional-wide dispersal, and can result in cascading effects on forest regeneration and composition.
Ecological network construction and land degradation risk identification in the Yellow River source area.
Zhang, H.; Song, Q.; Wang, S.; Zhao, J.; and Gao, W.
iScience, 28(7). July 2025.
Publisher: Elsevier
Paper
doi
link
bibtex
@article{zhang_ecological_2025,
title = {Ecological network construction and land degradation risk identification in the {Yellow} {River} source area},
volume = {28},
issn = {2589-0042},
url = {https://www.cell.com/iscience/abstract/S2589-0042(25)01036-3},
doi = {10.1016/j.isci.2025.112775},
language = {English},
number = {7},
urldate = {2025-07-31},
journal = {iScience},
author = {Zhang, Haoxiang and Song, Qian and Wang, Shiru and Zhao, Jianyun and Gao, Wenming},
month = jul,
year = {2025},
note = {Publisher: Elsevier},
keywords = {Major Roads},
}
Ecoregion-Based Landslide Susceptibility Mapping: A Spatially Partitioned Modeling Strategy for Oregon, USA.
Xu, Z.; Zuo, P.; Zhao, W.; Zhou, Z.; Shao, X.; Yu, J.; Yu, H.; Wang, W.; Gan, J.; Duan, J.; and Jin, J.
Applied Sciences, 15(20): 11242. January 2025.
Publisher: Multidisciplinary Digital Publishing Institute
Paper
doi
link
bibtex
abstract
@article{xu_ecoregion-based_2025,
title = {Ecoregion-{Based} {Landslide} {Susceptibility} {Mapping}: {A} {Spatially} {Partitioned} {Modeling} {Strategy} for {Oregon}, {USA}},
volume = {15},
copyright = {http://creativecommons.org/licenses/by/3.0/},
issn = {2076-3417},
shorttitle = {Ecoregion-{Based} {Landslide} {Susceptibility} {Mapping}},
url = {https://www.mdpi.com/2076-3417/15/20/11242},
doi = {10.3390/app152011242},
abstract = {Conventional non-partitioned Landslide Susceptibility Mapping (LSM), which neglects geospatial heterogeneity, often has limitations in accurately capturing local risk patterns. To address this challenge, this study investigated the effectiveness of localized modeling in the environmentally diverse state of Oregon, USA, by comparing ecoregion-based local models with the non-partitioned model. We partitioned Oregon into seven distinct units using the U.S. Environmental Protection Agency (EPA) Level III Ecoregions and developed one global and seven local models with the eXtreme Gradient Boosting (XGBoost) algorithm. A comprehensive evaluation framework, including the Area Under the Curve (AUC), Landslide Density (LD), and the Total Deviation Index (TDI), was used to compare the models. The results demonstrated the clear superiority of the partitioned strategy. Moreover, different ecoregions were found to have distinct dominant landslide conditioning factors, revealing strong spatial non-stationarity. Although all models generated high AUC values ({\textgreater}0.93), LD analysis showed that the local models were significantly more efficient at identifying high-risk zones. This advantage was particularly pronounced in critical, landslide-prone western areas; for instance, in the Willamette–Georgia–Puget Lowland, the local model’s LD value in the ‘very high’ susceptibility class was over 3.5 times that of the global model. High TDI values (some {\textgreater}35\%) further confirmed fundamental spatial discrepancies between the risk maps obtained by the two strategies. This research substantiated that, in geographically complex terrains, partitioned modeling is an effective approach for more accurate and reliable LSM, providing a scientific basis for developing targeted regional disaster mitigation policies.},
language = {en},
number = {20},
urldate = {2026-01-21},
journal = {Applied Sciences},
author = {Xu, Zhixiang and Zuo, Peng and Zhao, Wen and Zhou, Zeyu and Shao, Xiangyu and Yu, Junpo and Yu, Haize and Wang, Weijie and Gan, Junwei and Duan, Jinshun and Jin, Jiming},
month = jan,
year = {2025},
note = {Publisher: Multidisciplinary Digital Publishing Institute},
keywords = {NALCMS},
pages = {11242},
}
Conventional non-partitioned Landslide Susceptibility Mapping (LSM), which neglects geospatial heterogeneity, often has limitations in accurately capturing local risk patterns. To address this challenge, this study investigated the effectiveness of localized modeling in the environmentally diverse state of Oregon, USA, by comparing ecoregion-based local models with the non-partitioned model. We partitioned Oregon into seven distinct units using the U.S. Environmental Protection Agency (EPA) Level III Ecoregions and developed one global and seven local models with the eXtreme Gradient Boosting (XGBoost) algorithm. A comprehensive evaluation framework, including the Area Under the Curve (AUC), Landslide Density (LD), and the Total Deviation Index (TDI), was used to compare the models. The results demonstrated the clear superiority of the partitioned strategy. Moreover, different ecoregions were found to have distinct dominant landslide conditioning factors, revealing strong spatial non-stationarity. Although all models generated high AUC values (\textgreater0.93), LD analysis showed that the local models were significantly more efficient at identifying high-risk zones. This advantage was particularly pronounced in critical, landslide-prone western areas; for instance, in the Willamette–Georgia–Puget Lowland, the local model’s LD value in the ‘very high’ susceptibility class was over 3.5 times that of the global model. High TDI values (some \textgreater35%) further confirmed fundamental spatial discrepancies between the risk maps obtained by the two strategies. This research substantiated that, in geographically complex terrains, partitioned modeling is an effective approach for more accurate and reliable LSM, providing a scientific basis for developing targeted regional disaster mitigation policies.
Enhancing physically based and distributed hydrological model calibration through internal state variable constraints.
Talbot, F.; Sylvain, J.; Drolet, G.; Poulin, A.; and Arsenault, R.
Hydrology and Earth System Sciences, 29(22): 6549–6576. November 2025.
Publisher: Copernicus GmbH
Paper
doi
link
bibtex
abstract
@article{talbot_enhancing_2025,
title = {Enhancing physically based and distributed hydrological model calibration through internal state variable constraints},
volume = {29},
issn = {1027-5606},
url = {https://hess.copernicus.org/articles/29/6549/2025/},
doi = {10.5194/hess-29-6549-2025},
abstract = {Accurately representing hydrological processes remains a major challenge in hydrological modeling. Recent studies have demonstrated the benefits of multi-variable calibration, which integrates additional hydrological variables such as evapotranspiration and soil moisture alongside streamflow to improve model realism. However, groundwater recharge as a calibration variable remains relatively underexplored.
This study evaluates how incorporating groundwater recharge into the calibration of the Water Balance Simulation Model (WaSiM) affects hydrological variables representation. Three configurations were tested: Baseline (BL) with streamflow-only calibration, Physical Groundwater Model (GW) with physically-based groundwater flow, and Physical Groundwater with Recharge Calibration (GW-RC), which further constrains groundwater recharge during calibration. The models were calibrated and applied to 34 catchments in Southern Québec. Their performance was evaluated using the Kling-Gupta Efficiency (KGE) for streamflow and spatial estimates of groundwater recharge derived from a previous research project conducted in the same region.
Results indicate that while calibrating on streamflow alone produces high KGE values (median KGE = 0.83 for GW and 0.82 for BL), but it comes at the cost of misrepresenting subsurface hydrological processes. Adding groundwater recharge constraints (GW-RC) reduce streamflow performance, with a median KGE of 0.77 for GW-RC, but improves hydrological variable representation, especially in seasonal runoff patterns, where it better captures the balance between surface runoff and interflow during snowmelt. Additionally, GW-RC showed the smallest differences with the groundwater recharge estimates.
These findings illustrate the consequence of equifinality in streamflow-based calibration, where multiple parameter sets can yield similar streamflow outputs while misrepresenting internal hydrological processes. Incorporating groundwater recharge constraints improves the representation of internal hydrological processes while maintaining strong streamflow simulation performance, which could ultimately enhance reliability of climate change adaptation and water resource management strategies.},
language = {English},
number = {22},
urldate = {2026-01-21},
journal = {Hydrology and Earth System Sciences},
author = {Talbot, Frédéric and Sylvain, Jean-Daniel and Drolet, Guillaume and Poulin, Annie and Arsenault, Richard},
month = nov,
year = {2025},
note = {Publisher: Copernicus GmbH},
keywords = {NALCMS},
pages = {6549--6576},
}
Accurately representing hydrological processes remains a major challenge in hydrological modeling. Recent studies have demonstrated the benefits of multi-variable calibration, which integrates additional hydrological variables such as evapotranspiration and soil moisture alongside streamflow to improve model realism. However, groundwater recharge as a calibration variable remains relatively underexplored. This study evaluates how incorporating groundwater recharge into the calibration of the Water Balance Simulation Model (WaSiM) affects hydrological variables representation. Three configurations were tested: Baseline (BL) with streamflow-only calibration, Physical Groundwater Model (GW) with physically-based groundwater flow, and Physical Groundwater with Recharge Calibration (GW-RC), which further constrains groundwater recharge during calibration. The models were calibrated and applied to 34 catchments in Southern Québec. Their performance was evaluated using the Kling-Gupta Efficiency (KGE) for streamflow and spatial estimates of groundwater recharge derived from a previous research project conducted in the same region. Results indicate that while calibrating on streamflow alone produces high KGE values (median KGE = 0.83 for GW and 0.82 for BL), but it comes at the cost of misrepresenting subsurface hydrological processes. Adding groundwater recharge constraints (GW-RC) reduce streamflow performance, with a median KGE of 0.77 for GW-RC, but improves hydrological variable representation, especially in seasonal runoff patterns, where it better captures the balance between surface runoff and interflow during snowmelt. Additionally, GW-RC showed the smallest differences with the groundwater recharge estimates. These findings illustrate the consequence of equifinality in streamflow-based calibration, where multiple parameter sets can yield similar streamflow outputs while misrepresenting internal hydrological processes. Incorporating groundwater recharge constraints improves the representation of internal hydrological processes while maintaining strong streamflow simulation performance, which could ultimately enhance reliability of climate change adaptation and water resource management strategies.
Environmental evidence of surface manifestations of regional groundwater flows in the lower Colorado River Basin: the case Mexicali Valley, Mexico.
Abud-Russell, Y. R.; Hatch-Kuri, G.; Lara, M. d. C. C.; and Aguilar-Castillo, T.
Groundwater for Sustainable Development, 31: 101510. November 2025.
Paper
doi
link
bibtex
abstract
@article{abud-russell_environmental_2025,
title = {Environmental evidence of surface manifestations of regional groundwater flows in the lower {Colorado} {River} {Basin}: the case {Mexicali} {Valley}, {Mexico}},
volume = {31},
issn = {2352-801X},
shorttitle = {Environmental evidence of surface manifestations of regional groundwater flows in the lower {Colorado} {River} {Basin}},
url = {https://www.sciencedirect.com/science/article/pii/S2352801X25001079},
doi = {10.1016/j.gsd.2025.101510},
abstract = {Transboundary water in the Lower Colorado River Basin, shared between Mexico and the United States, demands robust, collaborative governance frameworks to address drought and increasing water demands. Although groundwater resources have become increasingly strategic for meeting water demands in both countries, they rarely receive formal consideration in official studies. Through geospatial analysis, this research delineates for the US portion of the Lower Colorado River Basin, the spatial distribution of recharge and discharge zones within the interconnected groundwater and surface water systems to characterize the regional components of groundwater flow. Employing a methodology based on the Tóthian framework of gravity-driven groundwater flow systems, the study emphasizes the interconnection of groundwater with perennial surface water, soil taxonomy, land use and land-forms as indirect evidence of its surface manifestation throughout this basin. The results are represented in discharge and recharge zones related to regional groundwater flow. Results highlight the need for binational data homologation and integration process to strengthen the available groundwater assessment tools for sustainable management in the U.S.-Mexico border.},
urldate = {2026-01-21},
journal = {Groundwater for Sustainable Development},
author = {Abud-Russell, Yussef Ricardo and Hatch-Kuri, Gonzalo and Lara, María del Carmen Carmona and Aguilar-Castillo, Tatiana},
month = nov,
year = {2025},
keywords = {NALCMS},
pages = {101510},
}
Transboundary water in the Lower Colorado River Basin, shared between Mexico and the United States, demands robust, collaborative governance frameworks to address drought and increasing water demands. Although groundwater resources have become increasingly strategic for meeting water demands in both countries, they rarely receive formal consideration in official studies. Through geospatial analysis, this research delineates for the US portion of the Lower Colorado River Basin, the spatial distribution of recharge and discharge zones within the interconnected groundwater and surface water systems to characterize the regional components of groundwater flow. Employing a methodology based on the Tóthian framework of gravity-driven groundwater flow systems, the study emphasizes the interconnection of groundwater with perennial surface water, soil taxonomy, land use and land-forms as indirect evidence of its surface manifestation throughout this basin. The results are represented in discharge and recharge zones related to regional groundwater flow. Results highlight the need for binational data homologation and integration process to strengthen the available groundwater assessment tools for sustainable management in the U.S.-Mexico border.
Estimating flood discharges at selected annual exceedance probabilities for unregulated, rural streams in Vermont, 2023.
Olson, S. A.
Technical Report 2025-5088, U.S. Geological Survey, 2025.
ISSN: 2328-0328 Publication Title: Scientific Investigations Report
Paper
doi
link
bibtex
abstract
@techreport{olson_estimating_2025,
title = {Estimating flood discharges at selected annual exceedance probabilities for unregulated, rural streams in {Vermont}, 2023},
url = {https://pubs.usgs.gov/publication/sir20255088},
abstract = {This report provides estimates of flood discharge at selected annual exceedance probabilities (AEPs) for streamgages in and adjacent to Vermont and equations for estimating flood discharges at AEPs of 50-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent (recurrence intervals of 2-, 5-, 10-, 25-, 50-, 100-, and 500-years, respectively) for ungaged, unregulated, rural streams in Vermont with drainage areas between 0.47 and 851 square miles. The equations were developed using generalized least-squares regression and flood-frequency and drainage-basin characteristics from 156 streamgages. Flood-frequency analyses were completed using data through the 2023 water year. The drainage-basin characteristics used as explanatory variables in the regression equations are drainage area, percentage of wetland area, and basin-wide mean of the average annual precipitation. The average standard errors of prediction used to estimate flood discharges at the 50-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent AEP with these equations are 34.9, 37.1, 38.2, 41.6,...},
language = {en},
number = {2025-5088},
urldate = {2026-01-21},
institution = {U.S. Geological Survey},
author = {Olson, Scott A.},
year = {2025},
doi = {10.3133/sir20255088},
note = {ISSN: 2328-0328
Publication Title: Scientific Investigations Report},
keywords = {NALCMS},
}
This report provides estimates of flood discharge at selected annual exceedance probabilities (AEPs) for streamgages in and adjacent to Vermont and equations for estimating flood discharges at AEPs of 50-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent (recurrence intervals of 2-, 5-, 10-, 25-, 50-, 100-, and 500-years, respectively) for ungaged, unregulated, rural streams in Vermont with drainage areas between 0.47 and 851 square miles. The equations were developed using generalized least-squares regression and flood-frequency and drainage-basin characteristics from 156 streamgages. Flood-frequency analyses were completed using data through the 2023 water year. The drainage-basin characteristics used as explanatory variables in the regression equations are drainage area, percentage of wetland area, and basin-wide mean of the average annual precipitation. The average standard errors of prediction used to estimate flood discharges at the 50-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent AEP with these equations are 34.9, 37.1, 38.2, 41.6,...
Evaluating Drivers of Spatial Distribution for the Endangered Eastern Red Bat (Lasiurus borealis) Under Climate Change.
Collinge, G.
Ph.D. Thesis, March 2025.
Paper
link
bibtex
abstract
@phdthesis{collinge_evaluating_2025,
title = {Evaluating {Drivers} of {Spatial} {Distribution} for the {Endangered} {Eastern} {Red} {Bat} ({Lasiurus} borealis) {Under} {Climate} {Change}},
url = {https://hdl.handle.net/1807/142688},
abstract = {Understanding how climatic conditions and biotic interactions impact species distributions is essential for effective biodiversity conservation. The eastern red bat (Lasiurus borealis), a migratory species recently designated endangered in Canada, is particularly threatened by the rapid development of wind energy. Protection of this species is contingent on information about where it roosts, forages, and migrates within its range, which is currently lacking. Here, I investigated changes in the bat’s migration phenology over the past century and modelled its contemporary and future distribution based on a range of climatic, anthropogenic and biotic variables. I found that bats appear to migrate earlier in spring and later in autumn, that temperature and forest type are key to predicting their distribution, and that their seasonal range is projected to shift northward, but also contract, under climate change. These results highlight the importance of including spatial and temporal considerations in conservation planning.},
language = {en},
urldate = {2025-07-31},
author = {Collinge, Germain},
month = mar,
year = {2025},
keywords = {NALCMS},
}
Understanding how climatic conditions and biotic interactions impact species distributions is essential for effective biodiversity conservation. The eastern red bat (Lasiurus borealis), a migratory species recently designated endangered in Canada, is particularly threatened by the rapid development of wind energy. Protection of this species is contingent on information about where it roosts, forages, and migrates within its range, which is currently lacking. Here, I investigated changes in the bat’s migration phenology over the past century and modelled its contemporary and future distribution based on a range of climatic, anthropogenic and biotic variables. I found that bats appear to migrate earlier in spring and later in autumn, that temperature and forest type are key to predicting their distribution, and that their seasonal range is projected to shift northward, but also contract, under climate change. These results highlight the importance of including spatial and temporal considerations in conservation planning.
Evaluating the Causes of Land Subsidence on the U.S. Mid-Atlantic Coast Measured with InSAR.
DiPrima, J.
Ph.D. Thesis, January 2025.
Paper
link
bibtex
@phdthesis{diprima_evaluating_2025,
title = {Evaluating the {Causes} of {Land} {Subsidence} on the {U}.{S}. {Mid}-{Atlantic} {Coast} {Measured} with {InSAR}},
url = {https://scholars.unh.edu/honors/883},
author = {DiPrima, Jordan},
month = jan,
year = {2025},
keywords = {NALCMS},
}
Evaluating time-lagged relationships between groundwater storage and river discharge using GRACE-based data: insights from the Potomac Basin.
Villaruel, A.; Seck, A.; and Schultz, C.
Environmental Research Communications, 7(7): 075003. July 2025.
Publisher: IOP Publishing
Paper
doi
link
bibtex
abstract
@article{villaruel_evaluating_2025,
title = {Evaluating time-lagged relationships between groundwater storage and river discharge using {GRACE}-based data: insights from the {Potomac} {Basin}},
volume = {7},
issn = {2515-7620},
shorttitle = {Evaluating time-lagged relationships between groundwater storage and river discharge using {GRACE}-based data},
url = {https://dx.doi.org/10.1088/2515-7620/ade36f},
doi = {10.1088/2515-7620/ade36f},
abstract = {This study evaluates the utility of a recently available GRACE-based groundwater drought index (GDI) in supporting regional water supply management, with application to the Potomac River Basin, in the U.S. Middle Atlantic region. As the primary drinking water source for the Washington Metropolitan Area (WMA), effective management of the Potomac River’s resources is critical, especially in the context of climate change, with the expected increase in severity and frequency of extreme events. Our analysis integrates 22 years of data, including GRACE-based groundwater storage (GWS) index estimates, river discharge (Q) measurements, and meteorological records, to investigate trends and predictive relationships between past GWS, as determined by the GRACE-based drought index, and streamflow. Seasonal Mann-Kendall trend analyses consistently identified severe declining trends in groundwater storage (GWS), as well as moderate declines in minimum streamflow and well water levels over the past 22 years. Granger Causality (GC) tests revealed significant time lags of 49 weeks to 22 months at weekly and monthly scales, respectively depending on a region’s hydrogeomorphic characteristics. Vector Autoregressive (VAR) Models and Forecast Error Variance Decomposition (FEVD) highlighted the variable contributions of precipitation and temperature to the GWS-Q relationship, revealing a strong autoregressive component of Q, but also reveal that GWS plays an important role, and this role increases with time. These findings underscore the interconnectedness of groundwater and surface water systems and the importance of integrated predictive models to enhance water management strategies. Incorporating GRACE-based seasonal groundwater forecasts into drought preparedness tools could bolster efforts to mitigate regional climate change impacts and improve the resilience of water resources in the Potomac River Basin. While practical use of native GRACE data has been challenging for local, small-scale applications, this study demonstrates the utility of the GRACE-based GDI in forecasting low flows and informing regional water resource management decisions during droughts.},
language = {en},
number = {7},
urldate = {2025-07-31},
journal = {Environmental Research Communications},
author = {Villaruel, AJ and Seck, Alimatou and Schultz, Cherie},
month = jul,
year = {2025},
note = {Publisher: IOP Publishing},
keywords = {NALCMS},
pages = {075003},
}
This study evaluates the utility of a recently available GRACE-based groundwater drought index (GDI) in supporting regional water supply management, with application to the Potomac River Basin, in the U.S. Middle Atlantic region. As the primary drinking water source for the Washington Metropolitan Area (WMA), effective management of the Potomac River’s resources is critical, especially in the context of climate change, with the expected increase in severity and frequency of extreme events. Our analysis integrates 22 years of data, including GRACE-based groundwater storage (GWS) index estimates, river discharge (Q) measurements, and meteorological records, to investigate trends and predictive relationships between past GWS, as determined by the GRACE-based drought index, and streamflow. Seasonal Mann-Kendall trend analyses consistently identified severe declining trends in groundwater storage (GWS), as well as moderate declines in minimum streamflow and well water levels over the past 22 years. Granger Causality (GC) tests revealed significant time lags of 49 weeks to 22 months at weekly and monthly scales, respectively depending on a region’s hydrogeomorphic characteristics. Vector Autoregressive (VAR) Models and Forecast Error Variance Decomposition (FEVD) highlighted the variable contributions of precipitation and temperature to the GWS-Q relationship, revealing a strong autoregressive component of Q, but also reveal that GWS plays an important role, and this role increases with time. These findings underscore the interconnectedness of groundwater and surface water systems and the importance of integrated predictive models to enhance water management strategies. Incorporating GRACE-based seasonal groundwater forecasts into drought preparedness tools could bolster efforts to mitigate regional climate change impacts and improve the resilience of water resources in the Potomac River Basin. While practical use of native GRACE data has been challenging for local, small-scale applications, this study demonstrates the utility of the GRACE-based GDI in forecasting low flows and informing regional water resource management decisions during droughts.
Exploring regionalization techniques: Simulation and application in ecology.
Lohman, M.
Ph.D. Thesis, University of Nevada - Reno, Reno, December 2025.
Paper
link
bibtex
@phdthesis{lohman_exploring_2025,
address = {Reno},
type = {Master of {Science}},
title = {Exploring regionalization techniques: {Simulation} and application in ecology},
url = {https://scholarwolf.unr.edu/items/408d3d04-2da1-43cc-997e-d12f534ea820},
language = {English},
urldate = {2026-06-01},
school = {University of Nevada - Reno},
author = {Lohman, Madeleine},
month = dec,
year = {2025},
keywords = {NALCMS},
}
Final Environmental Assessment for the Multi-Bat Species General Conservation Plan for NY, PA, and WV \textbar FWS.gov.
U.S. Fish & Wildlife Service
Technical Report December 2025.
Paper
link
bibtex
@techreport{us_fish__wildlife_service_final_2025,
title = {Final {Environmental} {Assessment} for the {Multi}-{Bat} {Species} {General} {Conservation} {Plan} for {NY}, {PA}, and {WV} {\textbar} {FWS}.gov},
url = {https://www.fws.gov/media/final-environmental-assessment-multi-bat-species-general-conservation-plan-ny-pa-and-wv},
language = {en},
urldate = {2026-05-29},
author = {{U.S. Fish \& Wildlife Service}},
month = dec,
year = {2025},
keywords = {Terrestrial Ecoregions (CEC 1997), Terrestrial Ecoregions (Griffith 2010)},
}
Finding Space for the Island Marble Butterfly: Modeling the Habitat of a Highly Endangered Endemic Butterfly in the Salish Sea Ecoregion.
Bradford, E.
Ph.D. Thesis, Western Washington University, January 2025.
Paper
link
bibtex
@phdthesis{bradford_finding_2025,
title = {Finding {Space} for the {Island} {Marble} {Butterfly}: {Modeling} the {Habitat} of a {Highly} {Endangered} {Endemic} {Butterfly} in the {Salish} {Sea} {Ecoregion}},
shorttitle = {Finding {Space} for the {Island} {Marble} {Butterfly}},
url = {https://cedar.wwu.edu/wwuet/1429},
school = {Western Washington University},
author = {Bradford, Emily},
month = jan,
year = {2025},
keywords = {NALCMS},
}
Flexible Earth: A Housing Model for Adaptive Communities.
Alexander, O.
Ph.D. Thesis, 2025.
Accepted: 2025-07-16T17:40:15Z Publisher: The University of Arizona.
Paper
link
bibtex
abstract
@phdthesis{alexander_flexible_2025,
title = {Flexible {Earth}: {A} {Housing} {Model} for {Adaptive} {Communities}},
copyright = {http://rightsstatements.org/vocab/InC/1.0/},
shorttitle = {{FLEXIBLE} {EARTH}},
url = {https://repository.arizona.edu/handle/10150/677767},
abstract = {Since the 19th-century Gold Rush, Americans have steadily moved westward in search of new opportunities. Even after the end of the Gold Rush, people have found reason to move: the climate, land availability, and perceived health benefits. Between 2020 and 2021, five of the top fifteen cities with the highest population increase were in Arizona, and eleven of them are located in the west (US Census Bureau). This growth has amplified the need for housing and infrastructure. Since the end of World War II, tract homes have been growing in popularity and quantity. Their modularity and repeatability allow for quick assembly, offering benefits such as privacy, perceived safety, affordability, and wide availability. The problems lie in the negative effect this construction type has on the environment, lack of consideration for climate and location, distance from amenities (therefore increasing dependence on automobiles), and the fact that these homes are not always affordable to first-time home buyers or low-income families. This work considers alternatives to conventional tract homes in the southwest through the use of traditional building materials in tandem with contemporary construction technologies. Pre-industrialization and pre-globalization architecture was designed with the location and context in mind, leading to location-specific design that relied heavily on passive strategies suited to the local climate. As the planet continues to see the effects of climate change and extreme weather become more frequent, responding to both the current and future environmental conditions is more important than ever. The solution proposed is automated earth construction, a plentiful and reusable material well-suited to arid climates. Not only is earth readily available, but it is also sound-deadening, insulating, fire-resistant, durable, and non-toxic. However, earth construction remains labor-intensive and costly - not due to the material cost, but the labor - a disadvantage that can be mitigated through computer-automated fabrication.
As computer-automated construction methods - like 3D printing - become more affordable and available, there is an opportunity to combine the speed and scalability of tract home construction with the environmental responsiveness and sustainability of more traditional methods.},
language = {en},
urldate = {2025-07-31},
author = {Alexander, Oliver},
year = {2025},
note = {Accepted: 2025-07-16T17:40:15Z
Publisher: The University of Arizona.},
keywords = {Climate Zones},
}
Since the 19th-century Gold Rush, Americans have steadily moved westward in search of new opportunities. Even after the end of the Gold Rush, people have found reason to move: the climate, land availability, and perceived health benefits. Between 2020 and 2021, five of the top fifteen cities with the highest population increase were in Arizona, and eleven of them are located in the west (US Census Bureau). This growth has amplified the need for housing and infrastructure. Since the end of World War II, tract homes have been growing in popularity and quantity. Their modularity and repeatability allow for quick assembly, offering benefits such as privacy, perceived safety, affordability, and wide availability. The problems lie in the negative effect this construction type has on the environment, lack of consideration for climate and location, distance from amenities (therefore increasing dependence on automobiles), and the fact that these homes are not always affordable to first-time home buyers or low-income families. This work considers alternatives to conventional tract homes in the southwest through the use of traditional building materials in tandem with contemporary construction technologies. Pre-industrialization and pre-globalization architecture was designed with the location and context in mind, leading to location-specific design that relied heavily on passive strategies suited to the local climate. As the planet continues to see the effects of climate change and extreme weather become more frequent, responding to both the current and future environmental conditions is more important than ever. The solution proposed is automated earth construction, a plentiful and reusable material well-suited to arid climates. Not only is earth readily available, but it is also sound-deadening, insulating, fire-resistant, durable, and non-toxic. However, earth construction remains labor-intensive and costly - not due to the material cost, but the labor - a disadvantage that can be mitigated through computer-automated fabrication. As computer-automated construction methods - like 3D printing - become more affordable and available, there is an opportunity to combine the speed and scalability of tract home construction with the environmental responsiveness and sustainability of more traditional methods.
Forcing Mechanisms of Strong Surface Winds in a Dust Storm–Prone, High-Latitude Proglacial Valley.
Bellamy, D.; Nadeau, D. F.; and King, J.
. January 2025.
Section: Journal of Applied Meteorology and Climatology
Paper
doi
link
bibtex
abstract
@article{bellamy_forcing_2025,
title = {Forcing {Mechanisms} of {Strong} {Surface} {Winds} in a {Dust} {Storm}–{Prone}, {High}-{Latitude} {Proglacial} {Valley}},
url = {https://journals.ametsoc.org/view/journals/apme/64/1/JAMC-D-24-0044.1.xml},
doi = {10.1175/JAMC-D-24-0044.1},
abstract = {Proglacial valleys are important historical and contemporary sources of mineral dust emissions. These dust sources are situated within a complex mountainous terrain, which induce a series of superimposed meteorological phenomena. This paper assesses the forcing mechanisms of high wind speed (HWS) events in the dust storm–prone A’ą¨y Chu (Slims River) valley in southwest Yukon, Canada (60.96°N, 138.60°W). The period of 7 July 2021–30 September 2022 (≈15 months) is examined using surface meteorological stations distributed within and near the valley. A hierarchical indexing approach is applied, supported by high-resolution Weather Research and Forecasting (WRF) simulations, to identify dominant meteorological forcing mechanisms of strong wind events. Half (50.0\%) of HWS events in the valley occur under high above-valley wind speeds. Little evidence was found that off-glacier winds drive HWS, despite frequent attribution of these winds to local dust emissions in the literature. A summertime valley wind system is likely responsible for persistent nocturnal HWS near the valley delta (61.00°N, 138.52°W), contributing to the 28\% of summer HWS under distinctly calm aloft conditions. Efforts to constrain HWS characteristics from ambient conditions were not successful, partly confounded by adjacent valley wind systems. Ascertaining the configuration of phenomena responsible for high surface winds in these locations is key to yielding the predictive capacity of dust emissions from these rapidly deglaciating landscapes. Significance Statement Mineral dust emissions from high-latitude ({\textgreater}50°N) regions are poorly represented in current modeling approaches. Many dust sources are situated in a mountainous terrain, which heavily influences local wind systems. We investigated the drivers of strong surface winds in the A’ą¨y Chu valley (Canada) with a combination of surface observations and meteorological modeling. The relative importance of different meteorological systems is identified, indicating key phenomena to resolve in future efforts to simulate mineral dust emissions from this region and quantify contributions to the global dust budget.},
language = {en},
urldate = {2025-07-31},
author = {Bellamy, Daniel and Nadeau, Daniel F. and King, James},
month = jan,
year = {2025},
note = {Section: Journal of Applied Meteorology and Climatology},
keywords = {NALCMS},
}
Proglacial valleys are important historical and contemporary sources of mineral dust emissions. These dust sources are situated within a complex mountainous terrain, which induce a series of superimposed meteorological phenomena. This paper assesses the forcing mechanisms of high wind speed (HWS) events in the dust storm–prone A’ą¨y Chu (Slims River) valley in southwest Yukon, Canada (60.96°N, 138.60°W). The period of 7 July 2021–30 September 2022 (≈15 months) is examined using surface meteorological stations distributed within and near the valley. A hierarchical indexing approach is applied, supported by high-resolution Weather Research and Forecasting (WRF) simulations, to identify dominant meteorological forcing mechanisms of strong wind events. Half (50.0%) of HWS events in the valley occur under high above-valley wind speeds. Little evidence was found that off-glacier winds drive HWS, despite frequent attribution of these winds to local dust emissions in the literature. A summertime valley wind system is likely responsible for persistent nocturnal HWS near the valley delta (61.00°N, 138.52°W), contributing to the 28% of summer HWS under distinctly calm aloft conditions. Efforts to constrain HWS characteristics from ambient conditions were not successful, partly confounded by adjacent valley wind systems. Ascertaining the configuration of phenomena responsible for high surface winds in these locations is key to yielding the predictive capacity of dust emissions from these rapidly deglaciating landscapes. Significance Statement Mineral dust emissions from high-latitude (\textgreater50°N) regions are poorly represented in current modeling approaches. Many dust sources are situated in a mountainous terrain, which heavily influences local wind systems. We investigated the drivers of strong surface winds in the A’ą¨y Chu valley (Canada) with a combination of surface observations and meteorological modeling. The relative importance of different meteorological systems is identified, indicating key phenomena to resolve in future efforts to simulate mineral dust emissions from this region and quantify contributions to the global dust budget.
From coastlines to mountain crests: Regional and continental variation in North American marten diet and foraging.
Martin, M. E.; Delheimer, M. S.; Roddy, A. M.; Moriarty, K. M.; Eriksson, C. E.; Gunther, M. S.; Hartman, J.; Smith, B. H.; and Levi, T.
Ecosphere, 16(11): e70460. 2025.
_eprint: https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1002/ecs2.70460
Paper
doi
link
bibtex
abstract
@article{martin_coastlines_2025,
title = {From coastlines to mountain crests: {Regional} and continental variation in {North} {American} marten diet and foraging},
volume = {16},
copyright = {© 2025 The Author(s). Ecosphere published by Wiley Periodicals LLC on behalf of The Ecological Society of America.},
issn = {2150-8925},
shorttitle = {From coastlines to mountain crests},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/ecs2.70460},
doi = {10.1002/ecs2.70460},
abstract = {Dietary plasticity is an important trait in an increasingly dynamic world and can reveal how species respond to changes in resource availability, intra- or interspecific interactions, and landscape structure. Small-bodied carnivores occupy a unique trophic position as both consumers and prey while also filling critical roles in species interactions and provisioning of ecological services. Nonetheless, dietary patterns and factors that influence small carnivore foraging are often poorly understood, despite the ecological importance of carnivoran taxa. Here, we examined the diet and foraging of North American martens (Martes spp.), small-bodied mustelids often described as dietary generalists whose foraging patterns are assumed to be influenced by intrinsic and extrinsic factors (e.g., habitat and geography). We used complementary analyses to consider marten diet and foraging at two spatial scales: (1) regionally, using new empirical data collected in the coastal and montane forests of western Oregon and northern California; and (2) continentally, by reviewing and synthesizing previous studies of American (Martes americana) and Pacific martens (Martes caurina) across their North American distributions. Regionally, taxonomic richness and focal prey species varied among sampling sites, while forest cover and edge density had strong, contrasting effects on marten foraging patterns. Continentally, marten diet differed among coastal and interior ecoregions, but foraging did not vary substantially among studies when considering study characteristics. Martens exhibited high dietary plasticity and consumed a remarkable diversity of food items across new and synthesized data, although small mammals and birds were omnipresent prey. A diverse diet and flexible foraging, resulting in facultative variation among and within populations rather than obligate dependence on certain prey taxa, may be an important mechanism by which martens segregate niches with other carnivores or adjust to changing biotic or abiotic conditions. Our findings highlight the need to increase information on sensitive carnivore species, with particular regard to ecological and energetic requirements, to support their continued persistence.},
language = {en},
number = {11},
urldate = {2026-01-21},
journal = {Ecosphere},
author = {Martin, Marie E. and Delheimer, Matthew S. and Roddy, Alyssa M. and Moriarty, Katie M. and Eriksson, Charlotte E. and Gunther, Micaela S. and Hartman, Jennifer and Smith, B. Heath and Levi, Taal},
year = {2025},
note = {\_eprint: https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1002/ecs2.70460},
keywords = {Terrestrial Ecoregions (CEC 1997)},
pages = {e70460},
}
Dietary plasticity is an important trait in an increasingly dynamic world and can reveal how species respond to changes in resource availability, intra- or interspecific interactions, and landscape structure. Small-bodied carnivores occupy a unique trophic position as both consumers and prey while also filling critical roles in species interactions and provisioning of ecological services. Nonetheless, dietary patterns and factors that influence small carnivore foraging are often poorly understood, despite the ecological importance of carnivoran taxa. Here, we examined the diet and foraging of North American martens (Martes spp.), small-bodied mustelids often described as dietary generalists whose foraging patterns are assumed to be influenced by intrinsic and extrinsic factors (e.g., habitat and geography). We used complementary analyses to consider marten diet and foraging at two spatial scales: (1) regionally, using new empirical data collected in the coastal and montane forests of western Oregon and northern California; and (2) continentally, by reviewing and synthesizing previous studies of American (Martes americana) and Pacific martens (Martes caurina) across their North American distributions. Regionally, taxonomic richness and focal prey species varied among sampling sites, while forest cover and edge density had strong, contrasting effects on marten foraging patterns. Continentally, marten diet differed among coastal and interior ecoregions, but foraging did not vary substantially among studies when considering study characteristics. Martens exhibited high dietary plasticity and consumed a remarkable diversity of food items across new and synthesized data, although small mammals and birds were omnipresent prey. A diverse diet and flexible foraging, resulting in facultative variation among and within populations rather than obligate dependence on certain prey taxa, may be an important mechanism by which martens segregate niches with other carnivores or adjust to changing biotic or abiotic conditions. Our findings highlight the need to increase information on sensitive carnivore species, with particular regard to ecological and energetic requirements, to support their continued persistence.
Genetic monitoring of a long-term, large-scale experimental steelhead supplementation program.
Doornik, D. M. V.; Berejikian, B. A.; and Claiborne, A. M.
PLOS ONE, 20(12): e0339458. December 2025.
Publisher: Public Library of Science
Paper
doi
link
bibtex
abstract
@article{doornik_genetic_2025,
title = {Genetic monitoring of a long-term, large-scale experimental steelhead supplementation program},
volume = {20},
issn = {1932-6203},
url = {https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0339458},
doi = {10.1371/journal.pone.0339458},
abstract = {Declining salmonid populations often prompt the use of captive-reared fish to supplement wild stocks, but such programs risk negative genetic and ecological impacts. We evaluated six steelhead (Oncorhynchus mykiss) populations in the Hood Canal watershed, Puget Sound, Washington, including three supplemented and three unsupplemented control populations, over the span of 17 years to assess the effects of supplementation on several population genetics metrics. This program uniquely allowed natural spawning to occur before removing eyed eggs from redds for captive rearing, and later release as smolts or adults. Key genetic metrics—expected heterozygosity, allelic richness, and effective population size—remained stable from before to after supplementation in both the supplemented and non-supplemented populations. Parentage analyses confirmed successful reproduction by captively reared adults after they were released into the wild. These findings suggest that natural spawning prior to captive rearing, among other aspects of the program, lessened the genetic risks typically associated with artificial propagation such as loss of genetic diversity, or a reduction in effective population size. Our results highlight the potential for carefully designed supplementation programs to conserve genetic diversity and maintain effective population sizes in threatened steelhead populations.},
language = {en},
number = {12},
urldate = {2026-01-21},
journal = {PLOS ONE},
author = {Doornik, Donald M. Van and Berejikian, Barry A. and Claiborne, Andrew M.},
month = dec,
year = {2025},
note = {Publisher: Public Library of Science},
keywords = {Lakes \& Rivers},
pages = {e0339458},
}
Declining salmonid populations often prompt the use of captive-reared fish to supplement wild stocks, but such programs risk negative genetic and ecological impacts. We evaluated six steelhead (Oncorhynchus mykiss) populations in the Hood Canal watershed, Puget Sound, Washington, including three supplemented and three unsupplemented control populations, over the span of 17 years to assess the effects of supplementation on several population genetics metrics. This program uniquely allowed natural spawning to occur before removing eyed eggs from redds for captive rearing, and later release as smolts or adults. Key genetic metrics—expected heterozygosity, allelic richness, and effective population size—remained stable from before to after supplementation in both the supplemented and non-supplemented populations. Parentage analyses confirmed successful reproduction by captively reared adults after they were released into the wild. These findings suggest that natural spawning prior to captive rearing, among other aspects of the program, lessened the genetic risks typically associated with artificial propagation such as loss of genetic diversity, or a reduction in effective population size. Our results highlight the potential for carefully designed supplementation programs to conserve genetic diversity and maintain effective population sizes in threatened steelhead populations.
Genetic, Morphological, Phenological, and Mycorrhizal Aspects That Define American Beachgrass in Northeastern Freshwater Ecosystems - College of Environmental Science and Forestry.
Gibbons, C.
Ph.D. Thesis, State University of New York, April 2025.
Paper
link
bibtex
@phdthesis{gibbons_genetic_2025,
title = {Genetic, {Morphological}, {Phenological}, and {Mycorrhizal} {Aspects} {That} {Define} {American} {Beachgrass} in {Northeastern} {Freshwater} {Ecosystems} - {College} of {Environmental} {Science} and {Forestry}},
url = {https://experts.esf.edu/esploro/outputs/graduate/Genetic-Morphological-Phenological-and-Mycorrhizal-Aspects/99988626204826?institution=01SUNY_ESF},
urldate = {2026-01-21},
school = {State University of New York},
author = {Gibbons, Clay},
month = apr,
year = {2025},
}
Geographic distribution, habitat suitability, and habitat loss of plains rough fescue (Festuca hallii (Vasey) Piper) in North America.
Home, J.; and Lamb, E. G.
Botany, 103: 1–14. January 2025.
Publisher: NRC Research Press
Paper
doi
link
bibtex
abstract
@article{home_geographic_2025,
title = {Geographic distribution, habitat suitability, and habitat loss of plains rough fescue ({Festuca} hallii ({Vasey}) {Piper}) in {North} {America}},
volume = {103},
issn = {1916-2790},
url = {https://cdnsciencepub.com/doi/full/10.1139/cjb-2025-0057},
doi = {10.1139/cjb-2025-0057},
abstract = {Plains rough fescue, a native species of North America's central plains, has experienced a decline due to land conversion and population fragmentation. To assess the historical distribution of this species, we employed ecological niche modeling. Presence records of Festuca hallii (Vasey) Piper were collected from the SEINet Portal Network, iNaturalist, herbaria in The United States and Canada, and Canadian conservation data centers. A model was developed using MaxEnt with 1048 records, seven climatic variables and nine soil variables. A habitat suitability map was generated illustrating the likely distribution of F. hallii before European settlement in 19th century. The species has a high probability of occurrence across the Canadian prairies, with fragmented distribution in regions of the Rocky Mountains of Alberta and United States. Good habitat for F. hallii is characterized by soil bulk density between 1.07 and 1.25 g cm−3, annual mean temperature between 0.64 and 4.14 °C, precipitation during the warmest quarter between 149.72 and 228.19 mm, soil water content between 38.9\% and 45.85\%, and precipitation seasonality between 51.53\% and 77.08\%, which were the most important predictors in the model. Of the 450 206 km2 historic range, approximately 63 273 km2, or 14.1\%, remains intact with land cover/land use data indicating grassland conversion to agriculture as the main cause of habitat loss.},
urldate = {2026-01-21},
journal = {Botany},
author = {Home, Johan and Lamb, Eric G.},
month = jan,
year = {2025},
note = {Publisher: NRC Research Press},
keywords = {Terrestrial Ecoregions},
pages = {1--14},
}
Plains rough fescue, a native species of North America's central plains, has experienced a decline due to land conversion and population fragmentation. To assess the historical distribution of this species, we employed ecological niche modeling. Presence records of Festuca hallii (Vasey) Piper were collected from the SEINet Portal Network, iNaturalist, herbaria in The United States and Canada, and Canadian conservation data centers. A model was developed using MaxEnt with 1048 records, seven climatic variables and nine soil variables. A habitat suitability map was generated illustrating the likely distribution of F. hallii before European settlement in 19th century. The species has a high probability of occurrence across the Canadian prairies, with fragmented distribution in regions of the Rocky Mountains of Alberta and United States. Good habitat for F. hallii is characterized by soil bulk density between 1.07 and 1.25 g cm−3, annual mean temperature between 0.64 and 4.14 °C, precipitation during the warmest quarter between 149.72 and 228.19 mm, soil water content between 38.9% and 45.85%, and precipitation seasonality between 51.53% and 77.08%, which were the most important predictors in the model. Of the 450 206 km2 historic range, approximately 63 273 km2, or 14.1%, remains intact with land cover/land use data indicating grassland conversion to agriculture as the main cause of habitat loss.
Global Forest Maps for the Year 2020 to Support the EU Regulation on Deforestation-free Supply Chains.
Bourgoin, C.; Verhegghen, A.; Carboni, S.; Degreve, L.; Ameztoy, A. I.; Ceccherini, G.; Colditz, R.; and Achard, F.
Technical Report 2025.
ISBN: 9789268262603 ISSN: 1831-9424
Paper
doi
link
bibtex
abstract
@techreport{bourgoin_global_2025,
title = {Global {Forest} {Maps} for the {Year} 2020 to {Support} the {EU} {Regulation} on {Deforestation}-free {Supply} {Chains}},
url = {https://publications.jrc.ec.europa.eu/repository/handle/JRC141702},
abstract = {This document presents the second version of the Global map of Forest Cover for the year 2020 at 10 m spatial resolution (GFC 2020, version 2 dated 7 December 2024). This map is based on the combination of several global land cover / land use data sets and provides a spatially explicit representation of forest presence and absence for the year 2020. Additionally, this document presents a preliminary version of the Global map of Forest Types for the year 2020 (GFT 2020, version v0 dated 7 December 2024). The report presents the approaches that were developed to produce these two new maps and an analysis of the results in comparison with other international sources of information. These maps are designed to support the risk assessment in the implementation of the EU Regulation on deforestation-free supply chains (EUDR, Regulation (EU) 2023/1115), but their use is not mandatory, not exclusive and not legally binding. The primary access to this map is via the EU Observatory on Deforestation and Forest Degradation.},
language = {en},
urldate = {2025-05-08},
author = {Bourgoin, Clement and Verhegghen, Astrid and Carboni, Silvia and Degreve, Lucas and Ameztoy, ARAMENDI Iban and Ceccherini, Guido and Colditz, Rene and Achard, Frederic},
year = {2025},
doi = {10.2760/1975879},
note = {ISBN: 9789268262603
ISSN: 1831-9424},
keywords = {NALCMS},
}
This document presents the second version of the Global map of Forest Cover for the year 2020 at 10 m spatial resolution (GFC 2020, version 2 dated 7 December 2024). This map is based on the combination of several global land cover / land use data sets and provides a spatially explicit representation of forest presence and absence for the year 2020. Additionally, this document presents a preliminary version of the Global map of Forest Types for the year 2020 (GFT 2020, version v0 dated 7 December 2024). The report presents the approaches that were developed to produce these two new maps and an analysis of the results in comparison with other international sources of information. These maps are designed to support the risk assessment in the implementation of the EU Regulation on deforestation-free supply chains (EUDR, Regulation (EU) 2023/1115), but their use is not mandatory, not exclusive and not legally binding. The primary access to this map is via the EU Observatory on Deforestation and Forest Degradation.
Going, going, gone: Landscape drying reduces wetland function across the American West.
Donnelly, J. P.; Moore, J. N.; Kimball, J. S.; Jencso, K.; Petrie, M.; and Naugle, D. E.
Ecological Indicators, 171: 113172. February 2025.
Paper
doi
link
bibtex
abstract
@article{donnelly_going_2025,
title = {Going, going, gone: {Landscape} drying reduces wetland function across the {American} {West}},
volume = {171},
issn = {1470-160X},
shorttitle = {Going, going, gone},
url = {https://www.sciencedirect.com/science/article/pii/S1470160X25001013},
doi = {10.1016/j.ecolind.2025.113172},
abstract = {Ecosystems are rapidly transforming into non-historical configurations as a nearly inevitable consequence of climate and land use change. Water scarcity, in particular, is emerging as a new and powerful threat, forcing wetland ecosystems into altered functional states as the frequency and duration of their inundation diminish. Potential for large-scale functional loss raises concerns over environmental sustainability, as wetlands are key determinants of biodiversity in water-limited landscapes. To improve our understanding of rapid ecosystem change, we reconstructed monthly wetland surface water hydrology in the western U.S. from 1984 to 2023 using cloud computing and ∼ 150,000 satellite images to measure shifts in the timing and duration of inundations. Monitoring encompassed all freshwater palustrine and littoral systems, including anthropogenic wetlands sustained through human water use (e.g., irrigated agriculture and earthen livestock ponds). Wetland surface water was classified annually by hydroperiod (semi-permanent, seasonal, and temporary) based on monthly inundation rates and binned into functional groups based on ecological and anthropogenic associations to track patterns of change. Results were summarized at an ecoregional level to normalize heterogeneity in landscape drivers structuring trends. Findings showed that overall wetland abundance (i.e., inundated area) changed by only 0.2 \% during the forty-year study period; however, shortened inundation periods reduced semi-permanent wetlands by 24 \% and increased the combined abundance of seasonal and temporary wetlands by a nearly equal amount (23 \%). Trends suggest that semi-permanent loss acts as an early indicator of large-scale functional decline, signaling wetland ecosystems’ transition along a continuum of persistent to more ephemeral states. Functional declines were heterogeneous, with losses and gains focused in a limited number of ecoregions. High rates of semi-permanent loss were associated with overall declines in wetland abundance at the ecoregional level that exceeded 20 \% in some cases. Anthropogenic water use supported half the wetland resources measured. Proliferating agricultural-wetlands and earthen livestock ponds were drivers of wetland expansion and indicators of human adaptation to water scarcity that offset natural-wetlands losses in some ecoregions. Our analysis identifies a shortfall in large-scale governmental monitoring programs that remain focused on historical wetland threats associated with agricultural drainage and urban expansion. Outcomes from this work improve our understanding of environmental change, elevating the urgency of developing adaptive conservation strategies in light of the rapidly evolving trajectory of wetland ecosystems in the western U.S.},
urldate = {2026-05-26},
journal = {Ecological Indicators},
author = {Donnelly, J. Patrick and Moore, Johnnie N. and Kimball, John S. and Jencso, Kelsey and Petrie, Mark and Naugle, David E.},
month = feb,
year = {2025},
keywords = {Terrestrial Ecoregions (Wiken 2011)},
pages = {113172},
}
Ecosystems are rapidly transforming into non-historical configurations as a nearly inevitable consequence of climate and land use change. Water scarcity, in particular, is emerging as a new and powerful threat, forcing wetland ecosystems into altered functional states as the frequency and duration of their inundation diminish. Potential for large-scale functional loss raises concerns over environmental sustainability, as wetlands are key determinants of biodiversity in water-limited landscapes. To improve our understanding of rapid ecosystem change, we reconstructed monthly wetland surface water hydrology in the western U.S. from 1984 to 2023 using cloud computing and ∼ 150,000 satellite images to measure shifts in the timing and duration of inundations. Monitoring encompassed all freshwater palustrine and littoral systems, including anthropogenic wetlands sustained through human water use (e.g., irrigated agriculture and earthen livestock ponds). Wetland surface water was classified annually by hydroperiod (semi-permanent, seasonal, and temporary) based on monthly inundation rates and binned into functional groups based on ecological and anthropogenic associations to track patterns of change. Results were summarized at an ecoregional level to normalize heterogeneity in landscape drivers structuring trends. Findings showed that overall wetland abundance (i.e., inundated area) changed by only 0.2 % during the forty-year study period; however, shortened inundation periods reduced semi-permanent wetlands by 24 % and increased the combined abundance of seasonal and temporary wetlands by a nearly equal amount (23 %). Trends suggest that semi-permanent loss acts as an early indicator of large-scale functional decline, signaling wetland ecosystems’ transition along a continuum of persistent to more ephemeral states. Functional declines were heterogeneous, with losses and gains focused in a limited number of ecoregions. High rates of semi-permanent loss were associated with overall declines in wetland abundance at the ecoregional level that exceeded 20 % in some cases. Anthropogenic water use supported half the wetland resources measured. Proliferating agricultural-wetlands and earthen livestock ponds were drivers of wetland expansion and indicators of human adaptation to water scarcity that offset natural-wetlands losses in some ecoregions. Our analysis identifies a shortfall in large-scale governmental monitoring programs that remain focused on historical wetland threats associated with agricultural drainage and urban expansion. Outcomes from this work improve our understanding of environmental change, elevating the urgency of developing adaptive conservation strategies in light of the rapidly evolving trajectory of wetland ecosystems in the western U.S.
Grazing Reduces Field Bindweed Infestations in Perennial Warm-Season Grass Pastures.
Lauriault, L. M.; Schutte, B. J.; Darapuneni, M. K.; and Martinez, G. K.
Agronomy, 15(8): 1832. August 2025.
Number: 8 Publisher: Multidisciplinary Digital Publishing Institute
Paper
doi
link
bibtex
abstract
@article{lauriault_grazing_2025,
title = {Grazing {Reduces} {Field} {Bindweed} {Infestations} in {Perennial} {Warm}-{Season} {Grass} {Pastures}},
volume = {15},
copyright = {http://creativecommons.org/licenses/by/3.0/},
issn = {2073-4395},
url = {https://www.mdpi.com/2073-4395/15/8/1832},
doi = {10.3390/agronomy15081832},
abstract = {Field bindweed (Convolvulus arvensis L.) is a competitive herbaceous perennial weed that reduces productivity in irrigated pastures. Grazing might reduce competition by field bindweed when it begins growth in the spring, thereby encouraging encroachment by desirable grass species during the summer. To test this hypothesis, a two-year study was conducted in two adjacent, privately owned, irrigated, warm-season perennial grass pastures (replicates) that were heavily infested with field bindweed. Study sites were near Tucumcari, NM, USA. The fields were grazed with exclosures to evaluate ungrazed management. Aboveground biomass of field bindweed, other weeds, and perennial grass were measured, and field bindweed plants were counted in May of 2018 and 2019. There was no difference between years for any variable. Other weed biomass and field bindweed biomass and plant numbers were reduced (p {\textless} 0.05) by grazing (61.68 vs. 41.67 g bindweed biomass m−2 for ungrazed and grazed management, respectively, and 108.5 and 56.8 bindweed plants m−2 for ungrazed and grazed management, respectively). Otherwise, perennial grass production was unaffected by either year or management. These results indicate that grazing can be an effective tool to reduce field bindweed competition in warm-season perennial grass pastures.},
language = {en},
number = {8},
urldate = {2025-07-31},
journal = {Agronomy},
author = {Lauriault, Leonard M. and Schutte, Brian J. and Darapuneni, Murali K. and Martinez, Gasper K.},
month = aug,
year = {2025},
note = {Number: 8
Publisher: Multidisciplinary Digital Publishing Institute},
keywords = {Climate Zones},
pages = {1832},
}
Field bindweed (Convolvulus arvensis L.) is a competitive herbaceous perennial weed that reduces productivity in irrigated pastures. Grazing might reduce competition by field bindweed when it begins growth in the spring, thereby encouraging encroachment by desirable grass species during the summer. To test this hypothesis, a two-year study was conducted in two adjacent, privately owned, irrigated, warm-season perennial grass pastures (replicates) that were heavily infested with field bindweed. Study sites were near Tucumcari, NM, USA. The fields were grazed with exclosures to evaluate ungrazed management. Aboveground biomass of field bindweed, other weeds, and perennial grass were measured, and field bindweed plants were counted in May of 2018 and 2019. There was no difference between years for any variable. Other weed biomass and field bindweed biomass and plant numbers were reduced (p \textless 0.05) by grazing (61.68 vs. 41.67 g bindweed biomass m−2 for ungrazed and grazed management, respectively, and 108.5 and 56.8 bindweed plants m−2 for ungrazed and grazed management, respectively). Otherwise, perennial grass production was unaffected by either year or management. These results indicate that grazing can be an effective tool to reduce field bindweed competition in warm-season perennial grass pastures.
Habitat fragmentation and low patch connectivity threaten the genus Abies Mill. (Pinaceae) in southern North America.
Sáenz-Ceja, J. E.; and Mendoza, M. E.
Regional Environmental Change, 25(3): 84. June 2025.
Paper
doi
link
bibtex
abstract
@article{saenz-ceja_habitat_2025,
title = {Habitat fragmentation and low patch connectivity threaten the genus {Abies} {Mill}. ({Pinaceae}) in southern {North} {America}},
volume = {25},
issn = {1436-378X},
url = {https://doi.org/10.1007/s10113-025-02419-4},
doi = {10.1007/s10113-025-02419-4},
abstract = {Fir forests (Abies, Pinaceae) are patchily distributed in the montane ecoregions of the United States Southwest, Mexico, and northern Guatemala. We assessed habitat fragmentation for nine Abies species native to southern North America. We estimated the number of patches (NumP), mean patch size (MPS), median patch size (MedPS), mean shape index (MSI), patch density (PD), total edge (TE), mean patch edge (MPE), class area (CA), total landscape area (TLA), and percentage of class area within an ecoregion (ZLAND) based on Abies species distribution maps. Then, we calculated NumP, MPS, and ZLAND for land covers in each ecoregion between 2010 and 2020. We estimated the Integral Index of Connectivity of patches covered by Abies species according to two dispersal scenarios (0–500 m and 0–1000 m) and classified them as low, medium, or high connectivity. We also assessed the extent to which protected areas are intersected with patch connectivity levels. Most Abies species occupied small patches with low patch densities in restricted areas of each ecoregion. NumP increased significantly in conifer forests (76\%) and croplands (72\%), MPS decreased in mixed forests (39\%), conifer forests (37.4\%), and croplands (34.8\%), whereas ZLAND increased in urban areas (2.7\%). Most patches exhibited low connectivity in both dispersal scenarios; only two species hosted large medium and high connectivity patches. Moreover, at least 30\% of the distribution of two species was protected, and most of the protected extent was intersected with low connectivity patches. Our findings suggest habitat fragmentation and low patch connectivity could threaten Abies species long term.},
language = {en},
number = {3},
urldate = {2025-07-31},
journal = {Regional Environmental Change},
author = {Sáenz-Ceja, Jesús E. and Mendoza, Manuel E.},
month = jun,
year = {2025},
keywords = {NALCMS, Protected Areas, Railroads, Terrestrial Ecoregions},
pages = {84},
}
Fir forests (Abies, Pinaceae) are patchily distributed in the montane ecoregions of the United States Southwest, Mexico, and northern Guatemala. We assessed habitat fragmentation for nine Abies species native to southern North America. We estimated the number of patches (NumP), mean patch size (MPS), median patch size (MedPS), mean shape index (MSI), patch density (PD), total edge (TE), mean patch edge (MPE), class area (CA), total landscape area (TLA), and percentage of class area within an ecoregion (ZLAND) based on Abies species distribution maps. Then, we calculated NumP, MPS, and ZLAND for land covers in each ecoregion between 2010 and 2020. We estimated the Integral Index of Connectivity of patches covered by Abies species according to two dispersal scenarios (0–500 m and 0–1000 m) and classified them as low, medium, or high connectivity. We also assessed the extent to which protected areas are intersected with patch connectivity levels. Most Abies species occupied small patches with low patch densities in restricted areas of each ecoregion. NumP increased significantly in conifer forests (76%) and croplands (72%), MPS decreased in mixed forests (39%), conifer forests (37.4%), and croplands (34.8%), whereas ZLAND increased in urban areas (2.7%). Most patches exhibited low connectivity in both dispersal scenarios; only two species hosted large medium and high connectivity patches. Moreover, at least 30% of the distribution of two species was protected, and most of the protected extent was intersected with low connectivity patches. Our findings suggest habitat fragmentation and low patch connectivity could threaten Abies species long term.
Indirect Effects and Context Dependency in Stream Fish Invasions.
Annis, W. K.; Thompson, L. M.; Midway, S. R.; Olden, J. D.; and Peoples, B. K.
Diversity and Distributions, 31(1): e13968. 2025.
_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/ddi.13968
Paper
doi
link
bibtex
abstract
@article{annis_indirect_2025,
title = {Indirect {Effects} and {Context} {Dependency} in {Stream} {Fish} {Invasions}},
volume = {31},
copyright = {© 2025 The Author(s). Diversity and Distributions published by John Wiley \& Sons Ltd.},
issn = {1472-4642},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/ddi.13968},
doi = {10.1111/ddi.13968},
abstract = {Aim Invasion ecology is replete with a body of well-supported yet contradictory evidence for numerous invasion hypotheses, likely as a result of context dependency. Context dependency in invasion studies can arise in two ways: (1) apparent, when results differ between studies solely due to methodical differences, or (2) mechanistic, when results truly differ due to ecological processes. One form of apparent context dependency occurs when causally linked factors associated with invasion success (hereafter, invasion drivers) either mask or enhance each other's effect on invasion success. Mechanistic context dependency can occur when regional scale processes modify the influence of local scale invasion processes. Together, apparent and mechanistic context dependency likely give rise to conflicting support between invasion hypotheses via confounding effects of causally related invasion drivers and region-specific invasion processes. Location 2339 stream segments in two ecoregions of the United States. Methods Using local scale stream fish community data for two distinct ecoregions, we constructed identical path models to estimate the direct and indirect effects of invasion drivers on nonnative richness. We chose one variable to index invasion drivers from each of the following categories: propagule pressure, natural abiotic, anthropogenic abiotic and biotic factors. Results We found evidence of apparent context dependency through the presence of indirect effects, in which the effects of propagule pressure and biotic factors on nonnative richness were modulated by abiotic factors. The indirect effects of invasion drivers differed between both regions, providing evidence of mechanistic context dependency. Main Conclusions Apparent and mechanistic context dependency can lead to conflicting evidence between studies of invasion hypotheses. Accounting for indirect effects of invasion drivers is important in gaining a more general understanding of the invasion process. Furthermore, because indirect effects varied regionally, it is important to understand the large-scale processes that contextualise local invasion processes.},
language = {en},
number = {1},
urldate = {2026-05-21},
journal = {Diversity and Distributions},
author = {Annis, William K. and Thompson, Lily M. and Midway, Stephen R. and Olden, Julian D. and Peoples, Brandon K.},
year = {2025},
note = {\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/ddi.13968},
keywords = {Terrestrial Ecoregions (Wiken 2011)},
pages = {e13968},
}
Aim Invasion ecology is replete with a body of well-supported yet contradictory evidence for numerous invasion hypotheses, likely as a result of context dependency. Context dependency in invasion studies can arise in two ways: (1) apparent, when results differ between studies solely due to methodical differences, or (2) mechanistic, when results truly differ due to ecological processes. One form of apparent context dependency occurs when causally linked factors associated with invasion success (hereafter, invasion drivers) either mask or enhance each other's effect on invasion success. Mechanistic context dependency can occur when regional scale processes modify the influence of local scale invasion processes. Together, apparent and mechanistic context dependency likely give rise to conflicting support between invasion hypotheses via confounding effects of causally related invasion drivers and region-specific invasion processes. Location 2339 stream segments in two ecoregions of the United States. Methods Using local scale stream fish community data for two distinct ecoregions, we constructed identical path models to estimate the direct and indirect effects of invasion drivers on nonnative richness. We chose one variable to index invasion drivers from each of the following categories: propagule pressure, natural abiotic, anthropogenic abiotic and biotic factors. Results We found evidence of apparent context dependency through the presence of indirect effects, in which the effects of propagule pressure and biotic factors on nonnative richness were modulated by abiotic factors. The indirect effects of invasion drivers differed between both regions, providing evidence of mechanistic context dependency. Main Conclusions Apparent and mechanistic context dependency can lead to conflicting evidence between studies of invasion hypotheses. Accounting for indirect effects of invasion drivers is important in gaining a more general understanding of the invasion process. Furthermore, because indirect effects varied regionally, it is important to understand the large-scale processes that contextualise local invasion processes.
Inland Water Body Fraction Map for Canada and Adjacent Regions at 250-m Spatial Resolution.
Ghayourmanesh, S.; Trishchenko, A. P.; and Ungureanu, C.
Canadian Journal of Remote Sensing, 51(1): 2451934. December 2025.
Publisher: Canadian Aeronautics and Space Institute _eprint: https://doi.org/10.1080/07038992.2025.2451934
Paper
doi
link
bibtex
abstract
@article{ghayourmanesh_inland_2025,
title = {Inland {Water} {Body} {Fraction} {Map} for {Canada} and {Adjacent} {Regions} at 250-m {Spatial} {Resolution}},
volume = {51},
issn = {0703-8992},
url = {https://doi.org/10.1080/07038992.2025.2451934},
doi = {10.1080/07038992.2025.2451934},
abstract = {We present a novel raster dataset of surface inland water body fraction over Canada and neighbouring regions, including the northern parts of the United States, as well as Greenland, Iceland, and the northeastern sector of Russia, at 250-m spatial resolution. It was derived from the Global Surface Water (GSW) dataset (version 5) using a two-step resampling to ensure an accurate replication of the original data and spatial consistency in terms of extent and resolution with the Long-Term Satellite Data Records derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Visible Infrared Imaging Radiometer Suite (VIIRS) sensors. Additional input data and several coastline vector shape databases were utilized to refine the delineation of waterbodies and land-ocean interface. The resulting dataset is an 8-bit signed integer map, where each pixel represents either the water fraction or a land/ocean mask. Positive values indicate water bodies within Canada, while negative values represent areas outside of Canada. This dataset provides a more precise and up-to-date tool for medium-resolution studies of surface inland water in Canada, aligning closely with satellite imagery of similar spatial resolution. The dataset is freely available through the Government of Canada’s Open Government Portal.},
number = {1},
urldate = {2025-07-31},
journal = {Canadian Journal of Remote Sensing},
author = {Ghayourmanesh, Shaheen and Trishchenko, Alexander P. and Ungureanu, Calin},
month = dec,
year = {2025},
note = {Publisher: Canadian Aeronautics and Space Institute
\_eprint: https://doi.org/10.1080/07038992.2025.2451934},
keywords = {Political Boundaries},
pages = {2451934},
}
We present a novel raster dataset of surface inland water body fraction over Canada and neighbouring regions, including the northern parts of the United States, as well as Greenland, Iceland, and the northeastern sector of Russia, at 250-m spatial resolution. It was derived from the Global Surface Water (GSW) dataset (version 5) using a two-step resampling to ensure an accurate replication of the original data and spatial consistency in terms of extent and resolution with the Long-Term Satellite Data Records derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Visible Infrared Imaging Radiometer Suite (VIIRS) sensors. Additional input data and several coastline vector shape databases were utilized to refine the delineation of waterbodies and land-ocean interface. The resulting dataset is an 8-bit signed integer map, where each pixel represents either the water fraction or a land/ocean mask. Positive values indicate water bodies within Canada, while negative values represent areas outside of Canada. This dataset provides a more precise and up-to-date tool for medium-resolution studies of surface inland water in Canada, aligning closely with satellite imagery of similar spatial resolution. The dataset is freely available through the Government of Canada’s Open Government Portal.
Insect biological control: a global perspective.
Gontijo, L. M.; Torres, J. B.; Abram, P. K.; Alfaro-Tapia, A.; Arredondo-Bernal, H. C.; Biondi, A.; Cloyd, R. A.; Costamagna, A. C.; Desneux, N.; D'Ottavio, M.; Furlong, M. J.; Greco, N. M.; Labbe, R.; Hill, M.; Lavandero, B.; Tian-Hao, L.; Lomelí-Flores, J. R.; Lucas, E.; Messelink, G.; Rocca, M.; Rodriguez-Garcia, M.; Parra, J. R. P.; Peñalver Cruz, A.; Sokame, B. M.; Thackeray, S.; Urbaneja, A.; Vargas, G.; Zalucki, M. P.; and Zang, L.
. September 2025.
Accepted: 2025-11-26T10:27:31Z Company: IRTA Pubpro Distributor: IRTA Pubpro Institution: IRTA Pubpro Label: IRTA Pubpro Publisher: Schweizerbart Science Publishers
Paper
doi
link
bibtex
abstract
@article{gontijo_insect_2025,
title = {Insect biological control: a global perspective},
copyright = {Access rights vary by item. See individual item pages for details.},
issn = {0171-8177},
shorttitle = {Insect biological control},
url = {http://repositori.irta.cat/handle/20.500.12327/4863},
doi = {10.1127/entomologia/3237},
abstract = {Repositori de l'Institut de Recerca i Tecnologia Agroalimentària with publications and data on agri-food research},
language = {eng},
urldate = {2026-01-21},
author = {Gontijo, Lessando M. and Torres, Jorge B. and Abram, Paul K. and Alfaro-Tapia, Armando and Arredondo-Bernal, Hugo C. and Biondi, Antonio and Cloyd, Raymond A. and Costamagna, Alejandro C. and Desneux, Nicolas and D'Ottavio, Marie and Furlong, Michael J. and Greco, Nancy M. and Labbe, Roselyne and Hill, Martin and Lavandero, Blas and Tian-Hao, Li and Lomelí-Flores, José R. and Lucas, Eric and Messelink, Gerben and Rocca, Margarita and Rodriguez-Garcia, Marcela and Parra, José R. P. and Peñalver Cruz, Ainara and Sokame, Bonoukpoè Mawuko and Thackeray, Sean and Urbaneja, Alberto and Vargas, German and Zalucki, Myron P. and Zang, Lian-Sheng},
month = sep,
year = {2025},
note = {Accepted: 2025-11-26T10:27:31Z
Company: IRTA Pubpro
Distributor: IRTA Pubpro
Institution: IRTA Pubpro
Label: IRTA Pubpro
Publisher: Schweizerbart Science Publishers},
keywords = {Terrestrial Ecoregions (CEC 1997)},
}
Repositori de l'Institut de Recerca i Tecnologia Agroalimentària with publications and data on agri-food research
Investigating spatial variability of ground temperatures across coastal and continental highlands in Labrador, northeastern Canada.
Colyn, V.; Way, R.; Wang, Y.; Beer, J.; Trant, A.; Hermanutz, L.; Forget, A.; Tutton, R.; Barone, K.; Power, M.; Fedder, L.; Rendell, E.; Gaul, N.; and Le, N.
Arctic Science, 11: 1–26. January 2025.
Publisher: NRC Research Press
Paper
doi
link
bibtex
abstract
@article{colyn_investigating_2025,
title = {Investigating spatial variability of ground temperatures across coastal and continental highlands in {Labrador}, northeastern {Canada}},
volume = {11},
url = {https://cdnsciencepub.com/doi/full/10.1139/as-2024-0079},
doi = {10.1139/as-2024-0079},
abstract = {Interactions between atmospheric warming, local surface conditions, and ground temperatures complicate efforts to predict future permafrost changes in regions such as Labrador, northeastern Canada, where ground temperature monitoring is limited. This study provides the first comprehensive investigation of factors influencing local-to-regional ground temperature variability in Labrador’s highland environments including in areas subject to infrastructure development. Ground surface temperature measurements (n = 100), in situ field characteristics (i.e., vegetation, soil, and topography), and remotely derived variables were collected at five sampling areas of varying latitudes and continentalities. Our analysis identified no consistent latitudinal trend in mean annual ground surface temperatures (MAGST) or permafrost occurrence probabilities. Instead, the highest permafrost probabilities were found in dry, wind-blown areas with sparse vegetation cover in Labrador’s southwest interior. Using machine learning, we identified the most important climate variables (i.e., mean annual air temperature and air temperature range) and local site characteristics (i.e., maximum understory vegetation height, snow accumulation indices) for predicting regional variability in MAGSTs. These findings will support future geohazard assessments in similar highlands and aid in the development of fine-resolution permafrost distribution maps. These data also help to establish a critical baseline of thermal conditions for evaluating the impacts of further environmental and climatic changes.},
urldate = {2026-01-21},
journal = {Arctic Science},
author = {Colyn, Victoria and Way, Robert and Wang, Yifeng and Beer, Jordan and Trant, Andrew and Hermanutz, Luise and Forget, Anika and Tutton, Rosamond and Barone, Katryna and Power, Madison and Fedder, Leah and Rendell, Erin and Gaul, Nicole and Le, Nhu},
month = jan,
year = {2025},
note = {Publisher: NRC Research Press},
keywords = {Political Boundaries},
pages = {1--26},
}
Interactions between atmospheric warming, local surface conditions, and ground temperatures complicate efforts to predict future permafrost changes in regions such as Labrador, northeastern Canada, where ground temperature monitoring is limited. This study provides the first comprehensive investigation of factors influencing local-to-regional ground temperature variability in Labrador’s highland environments including in areas subject to infrastructure development. Ground surface temperature measurements (n = 100), in situ field characteristics (i.e., vegetation, soil, and topography), and remotely derived variables were collected at five sampling areas of varying latitudes and continentalities. Our analysis identified no consistent latitudinal trend in mean annual ground surface temperatures (MAGST) or permafrost occurrence probabilities. Instead, the highest permafrost probabilities were found in dry, wind-blown areas with sparse vegetation cover in Labrador’s southwest interior. Using machine learning, we identified the most important climate variables (i.e., mean annual air temperature and air temperature range) and local site characteristics (i.e., maximum understory vegetation height, snow accumulation indices) for predicting regional variability in MAGSTs. These findings will support future geohazard assessments in similar highlands and aid in the development of fine-resolution permafrost distribution maps. These data also help to establish a critical baseline of thermal conditions for evaluating the impacts of further environmental and climatic changes.
Jaguar density estimation in Mexico: The conservation importance of considering home range orientation in spatial capture–recapture.
Murphy, S. M.; and Luja, V. H.
Conservation Science and Practice, 7(2): e13301. 2025.
_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/csp2.13301
Paper
doi
link
bibtex
abstract
@article{murphy_jaguar_2025,
title = {Jaguar density estimation in {Mexico}: {The} conservation importance of considering home range orientation in spatial capture–recapture},
volume = {7},
copyright = {© 2025 The Author(s). Conservation Science and Practice published by Wiley Periodicals LLC on behalf of Society for Conservation Biology.},
issn = {2578-4854},
shorttitle = {Jaguar density estimation in {Mexico}},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/csp2.13301},
doi = {10.1111/csp2.13301},
abstract = {Accurate estimation of population parameters for imperiled wildlife is crucial for effective conservation decision-making. Population density is commonly used for monitoring imperiled species across space and time, and spatial capture–recapture (SCR) models can produce unbiased density estimates. However, many imperiled species are restricted to fragmented remnant habitats in landscapes severely modified by humans, which can alter animal space use in ways that violate typical SCR model assumptions, possibly cryptically biasing density estimates and misinforming conservation actions. Using data from a two-year camera-trapping survey in the Central Pacific Coast region, Mexico, we demonstrate the potential importance to endangered jaguar (Panthera onca) conservation of considering non-circular home ranges when estimating population density with SCR. Strong evidence existed that jaguars had elliptical home ranges wherein movements primarily occurred along linearly arranged coastal habitats that the camera array aligned with. Accounting for this movement with the SCR anisotropic detection function transformation, density estimates were 30\%–32\% higher than estimates from standard SCR models that assumed circular home ranges. Given much of suitable jaguar habitat in Mexico is fragmented and linearly oriented along coastlines and mountain ranges, accommodating irregular space use in SCR may be critical for obtaining reliable density estimates to inform effective jaguar conservation.},
language = {en},
number = {2},
urldate = {2025-05-08},
journal = {Conservation Science and Practice},
author = {Murphy, Sean M. and Luja, Victor H.},
year = {2025},
note = {\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/csp2.13301},
keywords = {NALCMS},
pages = {e13301},
}
Accurate estimation of population parameters for imperiled wildlife is crucial for effective conservation decision-making. Population density is commonly used for monitoring imperiled species across space and time, and spatial capture–recapture (SCR) models can produce unbiased density estimates. However, many imperiled species are restricted to fragmented remnant habitats in landscapes severely modified by humans, which can alter animal space use in ways that violate typical SCR model assumptions, possibly cryptically biasing density estimates and misinforming conservation actions. Using data from a two-year camera-trapping survey in the Central Pacific Coast region, Mexico, we demonstrate the potential importance to endangered jaguar (Panthera onca) conservation of considering non-circular home ranges when estimating population density with SCR. Strong evidence existed that jaguars had elliptical home ranges wherein movements primarily occurred along linearly arranged coastal habitats that the camera array aligned with. Accounting for this movement with the SCR anisotropic detection function transformation, density estimates were 30%–32% higher than estimates from standard SCR models that assumed circular home ranges. Given much of suitable jaguar habitat in Mexico is fragmented and linearly oriented along coastlines and mountain ranges, accommodating irregular space use in SCR may be critical for obtaining reliable density estimates to inform effective jaguar conservation.
Jasper wildfire complex 2024 : fire behaviour documentation, reconstruction, and analysis.: Fo133-1/433E-PDF - Government of Canada Publications - Canada.ca.
Government of Canada, P. S. undefined; and Canada, P.
Technical Report NOR-X-433, Natural Resources Canada, Canadian Forest Service, 2025.
Last Modified: 2013-04-03
Paper
link
bibtex
abstract
@techreport{government_of_canada_jasper_2025,
type = {Information {Report}},
title = {Jasper wildfire complex 2024 : fire behaviour documentation, reconstruction, and analysis.: {Fo133}-1/{433E}-{PDF} - {Government} of {Canada} {Publications} - {Canada}.ca},
shorttitle = {Jasper wildfire complex 2024},
url = {https://publications.gc.ca/site/eng/9.953712/publication.html},
abstract = {Publication information / bibliographic Record.},
language = {eng},
number = {NOR-X-433},
urldate = {2026-05-29},
institution = {Natural Resources Canada, Canadian Forest Service},
author = {Government of Canada, Public Services {and} Procurement Canada},
year = {2025},
note = {Last Modified: 2013-04-03},
keywords = {NALCMS},
}
Publication information / bibliographic Record.
Landscape associations and population genetics of a generalist carnivore at a range limit.
Kleeberg, B. A.; Lonsinger, R. C.; Adams, J. R.; Waits, L. P.; and Fairbanks, W. S.
PLOS ONE, 20(12): e0334492. December 2025.
Publisher: Public Library of Science
Paper
doi
link
bibtex
abstract
@article{kleeberg_landscape_2025,
title = {Landscape associations and population genetics of a generalist carnivore at a range limit},
volume = {20},
issn = {1932-6203},
url = {https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0334492},
doi = {10.1371/journal.pone.0334492},
abstract = {American black bear (Ursus americanus) sightings have increased in the Oklahoma Panhandle, an area outside of the species’ historical range, prompting an assessment of bears in the region. We used camera traps and an occupancy modeling framework to identify factors influencing bear detection and space-use patterns. We used noninvasive genetic sampling techniques to evaluate genetic diversity, population structure, and bear abundance in the region. During the summers of 2022–2023, we deployed cameras at 160 sites across western Oklahoma (USA) and detected ≥1 bear at 20 sites. The most-supported model from our single-season single-species analysis indicated that bear detection was positively associated with temperature and precipitation, negatively associated with day of year, and differed between years. The most-supported model indicated that bear space use was negatively associated with elevation (β = −0.013, 85\% CI = −0.025, 0.000), and positively associated with slope (β = 0.645, 85\% CI = 0.305, 0.984) and coarse woody debris counts (β = 1.539, 85\% CI = 0.314, 2.765). We deployed 41 hair snares in Oklahoma resulting in the collection of 153 hair samples and received 69 tissue samples from black bears harvested in northeastern New Mexico. Using 11 microsatellite markers, we identified 21 (12M:9F) bears in western Oklahoma, and 69 (40M:29F) in New Mexico. We found evidence that bears occurring in Oklahoma were an extension of a previously documented population that occurred in northcentral New Mexico. We detected significant population-level heterozygote deficiency (P = 0.013) compared to expectations under Hardy-Weinberg equilibrium. Using capture with replacement models, we estimated 26 (95\% CI = 19–43) bears in western Oklahoma during 2022–2023. Our results provide baseline data on population distribution, abundance, and genetic health of bears in the region and identify factors that may drive human-bear conflicts as the bear population increases in western Oklahoma.},
language = {en},
number = {12},
urldate = {2026-01-21},
journal = {PLOS ONE},
author = {Kleeberg, Bailey A. and Lonsinger, Robert C. and Adams, Jennifer R. and Waits, Lisette P. and Fairbanks, W. Sue},
month = dec,
year = {2025},
note = {Publisher: Public Library of Science},
keywords = {Lakes \& Rivers, Political Boundaries},
pages = {e0334492},
}
American black bear (Ursus americanus) sightings have increased in the Oklahoma Panhandle, an area outside of the species’ historical range, prompting an assessment of bears in the region. We used camera traps and an occupancy modeling framework to identify factors influencing bear detection and space-use patterns. We used noninvasive genetic sampling techniques to evaluate genetic diversity, population structure, and bear abundance in the region. During the summers of 2022–2023, we deployed cameras at 160 sites across western Oklahoma (USA) and detected ≥1 bear at 20 sites. The most-supported model from our single-season single-species analysis indicated that bear detection was positively associated with temperature and precipitation, negatively associated with day of year, and differed between years. The most-supported model indicated that bear space use was negatively associated with elevation (β = −0.013, 85% CI = −0.025, 0.000), and positively associated with slope (β = 0.645, 85% CI = 0.305, 0.984) and coarse woody debris counts (β = 1.539, 85% CI = 0.314, 2.765). We deployed 41 hair snares in Oklahoma resulting in the collection of 153 hair samples and received 69 tissue samples from black bears harvested in northeastern New Mexico. Using 11 microsatellite markers, we identified 21 (12M:9F) bears in western Oklahoma, and 69 (40M:29F) in New Mexico. We found evidence that bears occurring in Oklahoma were an extension of a previously documented population that occurred in northcentral New Mexico. We detected significant population-level heterozygote deficiency (P = 0.013) compared to expectations under Hardy-Weinberg equilibrium. Using capture with replacement models, we estimated 26 (95% CI = 19–43) bears in western Oklahoma during 2022–2023. Our results provide baseline data on population distribution, abundance, and genetic health of bears in the region and identify factors that may drive human-bear conflicts as the bear population increases in western Oklahoma.
Landscape changes and declines in Aquila chrysaetos (Golden Eagle) territory occupancy in southwestern Idaho.
Santiago, A. L; Cruz, J.; Delparte, D. M; Kochert, M. N; Steenhof, K.; Weldon, J. M; and Heath, J. A
Ornithological Applications,duaf054. September 2025.
Paper
doi
link
bibtex
abstract
@article{santiago_landscape_2025,
title = {Landscape changes and declines in {Aquila} chrysaetos ({Golden} {Eagle}) territory occupancy in southwestern {Idaho}},
issn = {0010-5422},
url = {https://doi.org/10.1093/ornithapp/duaf054},
doi = {10.1093/ornithapp/duaf054},
abstract = {Rapid loss of native shrubs and expansion of invasive annual plants like cheatgrass (Bromus tectorum) have altered North American shrub-steppe systems across extensive areas. Predators, like Aquila chrysaetos (Golden Eagle) that forage on shrub-reliant prey, may abandon historically occupied territories or increase their territory size to cope with degraded habitat. We used a multiseason Bayesian occupancy model that accounted for imperfect detection to investigate the associations between landscape cover, fire history, conspecific neighbor density, and occupancy of 36 A. chrysaetos territories in southwestern Idaho and the Morley Nelson Snake River Birds of Prey National Conservation Area, USA from 1986 to 2022. The probability of A. chrysaetos occupancy at historically occupied territories decreased 25\% from 1986 to 2022 (0.83–0.58). Once territories became vacant for 5 yr, they tended to remain vacant, suggesting that they were no longer suitable for eagles, or that no new eagles were recruiting into the population. Territory occupancy was positively associated with shrub cover (β: 0.90, 95\% CrI: 0.12 to 1.71) and negatively (albeit weakly) associated with annual herbaceous cover (β: –0.63, 95\% CrI: –1.32 to 0.05). Territories closer to other occupied territories had a lower probability of occupancy than territories with distant neighbors (β: –3.89, 95\% CrI: –4.61 to –3.14), likely because eagles compensated for degraded habitat by expanding their territories. Years since the territory last burned had a slightly positive effect on occupancy with high uncertainty and a credible interval that overlapped 0 (β: 0.28, 95\% CrI: –0.26 to 0.87). The probability of detecting eagles in an occupied territory was high (0.90) and improved in surveys conducted earlier in the day and later in the breeding season. Shrub conversion to invasive grasslands has negative bottom-up consequences on A. chrysaetos territory occupancy, which may decrease the local carrying capacity for eagles in this area.Native shrub habitat has been replaced by non-native annual grasses across wide areas in the Western U.S.We built an occupancy model to assess the effects of landscape cover on the temporal variation in Aquila chrysaetos (Golden Eagle) territory occupancyThe probability of A. chrysaetos territory occupancy decreased from 1986 to 2022Increased annual herbaceous cover and a higher density of occupied A. chrysaetos territories affected the probability of occupancy negativelyShrub cover and less frequent fires increased the probability of occupancyLandscape changes can have bottom-up effects on predators and lead to a lower carrying capacity for eagles in local areas.},
urldate = {2026-01-21},
journal = {Ornithological Applications},
author = {Santiago, Ashley L and Cruz, Jennyffer and Delparte, Donna M and Kochert, Michael N and Steenhof, Karen and Weldon, Joseph M and Heath, Julie A},
month = sep,
year = {2025},
keywords = {Political Boundaries},
pages = {duaf054},
}
Rapid loss of native shrubs and expansion of invasive annual plants like cheatgrass (Bromus tectorum) have altered North American shrub-steppe systems across extensive areas. Predators, like Aquila chrysaetos (Golden Eagle) that forage on shrub-reliant prey, may abandon historically occupied territories or increase their territory size to cope with degraded habitat. We used a multiseason Bayesian occupancy model that accounted for imperfect detection to investigate the associations between landscape cover, fire history, conspecific neighbor density, and occupancy of 36 A. chrysaetos territories in southwestern Idaho and the Morley Nelson Snake River Birds of Prey National Conservation Area, USA from 1986 to 2022. The probability of A. chrysaetos occupancy at historically occupied territories decreased 25% from 1986 to 2022 (0.83–0.58). Once territories became vacant for 5 yr, they tended to remain vacant, suggesting that they were no longer suitable for eagles, or that no new eagles were recruiting into the population. Territory occupancy was positively associated with shrub cover (β: 0.90, 95% CrI: 0.12 to 1.71) and negatively (albeit weakly) associated with annual herbaceous cover (β: –0.63, 95% CrI: –1.32 to 0.05). Territories closer to other occupied territories had a lower probability of occupancy than territories with distant neighbors (β: –3.89, 95% CrI: –4.61 to –3.14), likely because eagles compensated for degraded habitat by expanding their territories. Years since the territory last burned had a slightly positive effect on occupancy with high uncertainty and a credible interval that overlapped 0 (β: 0.28, 95% CrI: –0.26 to 0.87). The probability of detecting eagles in an occupied territory was high (0.90) and improved in surveys conducted earlier in the day and later in the breeding season. Shrub conversion to invasive grasslands has negative bottom-up consequences on A. chrysaetos territory occupancy, which may decrease the local carrying capacity for eagles in this area.Native shrub habitat has been replaced by non-native annual grasses across wide areas in the Western U.S.We built an occupancy model to assess the effects of landscape cover on the temporal variation in Aquila chrysaetos (Golden Eagle) territory occupancyThe probability of A. chrysaetos territory occupancy decreased from 1986 to 2022Increased annual herbaceous cover and a higher density of occupied A. chrysaetos territories affected the probability of occupancy negativelyShrub cover and less frequent fires increased the probability of occupancyLandscape changes can have bottom-up effects on predators and lead to a lower carrying capacity for eagles in local areas.
Large Scale Land Cover Mapping in Ontario, Canada, Using a Deep Learning Framework.
Mohammadimanesh, F.
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing,1–15. 2025.
Paper
doi
link
bibtex
abstract
@article{mohammadimanesh_large_2025,
title = {Large {Scale} {Land} {Cover} {Mapping} in {Ontario}, {Canada}, {Using} a {Deep} {Learning} {Framework}},
issn = {2151-1535},
url = {https://ieeexplore.ieee.org/abstract/document/10982192},
doi = {10.1109/JSTARS.2025.3566611},
abstract = {This study addresses the challenge of large-scale land cover mapping using advanced deep learning models. While state-of-the-art deep learning methods have demonstrated promising results in various remote sensing applications, their efficiency for large-scale semantic segmentation tasks remains underexplored. A key limitation is their reliance on extensive training datasets. To address this issue, we propose a two-stage classification approach that integrates Random Forest (RF) for initial land cover mapping and MobileUNetR, a lightweight hybrid convolution-transformer model, for a refined classification. Leveraging Sentinel-1 and Sentinel-2 data, the land cover map of Ontario at spatial resolution of 10 meter, aligned with the North American Land Change Monitoring System (NALCMS) Level I legend, encompassing 11 classes, is generated. The findings of this study reveal that MobileUNeTR surpasses widely used models like UNet and PSPNet in terms of both accuracy and efficiency, underscoring its suitability for large-scale land cover mapping. In particular, an overall accuracy of 85\% and a Kappa coefficient of 0.83 are achieved with MobileUNetR, which has only about one-fourth to one-fifth the number of parameters compared to other deep learning models examined in this study. As the only deep learning model examined in this study combining convolutional and transformer blocks, MobileUNetR demonstrates the superiority of hybrid architectures for large-scale semantic segmentation. This is due to its capability in capturing both local and global features, which are essential for semantic segmentation of heterogeneous land cover classes with varying sizes and spectral signatures.},
urldate = {2025-05-08},
journal = {IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing},
author = {Mohammadimanesh, Fariba},
year = {2025},
keywords = {NALCMS},
pages = {1--15},
}
This study addresses the challenge of large-scale land cover mapping using advanced deep learning models. While state-of-the-art deep learning methods have demonstrated promising results in various remote sensing applications, their efficiency for large-scale semantic segmentation tasks remains underexplored. A key limitation is their reliance on extensive training datasets. To address this issue, we propose a two-stage classification approach that integrates Random Forest (RF) for initial land cover mapping and MobileUNetR, a lightweight hybrid convolution-transformer model, for a refined classification. Leveraging Sentinel-1 and Sentinel-2 data, the land cover map of Ontario at spatial resolution of 10 meter, aligned with the North American Land Change Monitoring System (NALCMS) Level I legend, encompassing 11 classes, is generated. The findings of this study reveal that MobileUNeTR surpasses widely used models like UNet and PSPNet in terms of both accuracy and efficiency, underscoring its suitability for large-scale land cover mapping. In particular, an overall accuracy of 85% and a Kappa coefficient of 0.83 are achieved with MobileUNetR, which has only about one-fourth to one-fifth the number of parameters compared to other deep learning models examined in this study. As the only deep learning model examined in this study combining convolutional and transformer blocks, MobileUNetR demonstrates the superiority of hybrid architectures for large-scale semantic segmentation. This is due to its capability in capturing both local and global features, which are essential for semantic segmentation of heterogeneous land cover classes with varying sizes and spectral signatures.
Loss of a major venom toxin gene in a Western Diamondback rattlesnake population.
Dowell, N. L.; Cahill, E.; and Carroll, S. B.
PLOS ONE, 20(7): e0319316. July 2025.
Publisher: Public Library of Science
Paper
doi
link
bibtex
abstract
@article{dowell_loss_2025,
title = {Loss of a major venom toxin gene in a {Western} {Diamondback} rattlesnake population},
volume = {20},
issn = {1932-6203},
url = {https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0319316},
doi = {10.1371/journal.pone.0319316},
abstract = {The biochemical complexity and evolutionary diversity of snake venom composition reflects adaptation to the diversity of prey in their diets. However, the genetic mechanisms underlying the evolutionary diversity of venoms are not well understood. Here, we explored the potential extent of and genetic basis for venom protein variation in the widely-distributed Western Diamondback rattlesnake (Crotalus atrox). As in many rattlesnake venoms, metalloproteinases (SVMPs) are the major component of C. atrox venom, with three proteins belonging to three distinct major structural SVMP classes, MDC4, MAD3a, and MPO1, constituting the most abundant SVMPs. We found that while most venom proteins, including MDC4 and MAD3a, vary little among individuals, the MPO1 protein is completely absent from some animals, most commonly those from the western part of the species’ geographic range. This distribution correlates with the previous finding of two distinct lineages within C. atrox and indicates that different ecological factors have shaped venom composition across the species’ range. We further show that the loss of MPO1 expression is not due to transcriptional down-regulation, but to independent inactivating mutations at the locus, including whole gene deletion. The recurrent inactivation of a major toxin gene within a C. atrox population may reflect relaxed selection on the maintenance of MPO1 function, but we also raise the possibility that the loss of venom components may be favored if there is a cost to producing a less effective toxin in protein-rich venoms.},
language = {en},
number = {7},
urldate = {2025-07-31},
journal = {PLOS ONE},
author = {Dowell, Noah L. and Cahill, Elizabeth and Carroll, Sean B.},
month = jul,
year = {2025},
note = {Publisher: Public Library of Science},
keywords = {Political Boundaries},
pages = {e0319316},
}
The biochemical complexity and evolutionary diversity of snake venom composition reflects adaptation to the diversity of prey in their diets. However, the genetic mechanisms underlying the evolutionary diversity of venoms are not well understood. Here, we explored the potential extent of and genetic basis for venom protein variation in the widely-distributed Western Diamondback rattlesnake (Crotalus atrox). As in many rattlesnake venoms, metalloproteinases (SVMPs) are the major component of C. atrox venom, with three proteins belonging to three distinct major structural SVMP classes, MDC4, MAD3a, and MPO1, constituting the most abundant SVMPs. We found that while most venom proteins, including MDC4 and MAD3a, vary little among individuals, the MPO1 protein is completely absent from some animals, most commonly those from the western part of the species’ geographic range. This distribution correlates with the previous finding of two distinct lineages within C. atrox and indicates that different ecological factors have shaped venom composition across the species’ range. We further show that the loss of MPO1 expression is not due to transcriptional down-regulation, but to independent inactivating mutations at the locus, including whole gene deletion. The recurrent inactivation of a major toxin gene within a C. atrox population may reflect relaxed selection on the maintenance of MPO1 function, but we also raise the possibility that the loss of venom components may be favored if there is a cost to producing a less effective toxin in protein-rich venoms.
Mapping Ixodes pacificus and Borrelia burgdorferi Habitat Suitability Under Current and Mid-Century Climate in the Pacific Northwest (BC and WA).
Couloigner, I.; Dizon, C.; Mak, S.; Dykstra, E.; Fraser, E.; Morshed, M.; Iwasawa, S.; Checkley, S.; and Cork, S.
Vector-Borne and Zoonotic Diseases, 25(1): 49–59. January 2025.
Publisher: Mary Ann Liebert, Inc., publishers
Paper
doi
link
bibtex
abstract
@article{couloigner_mapping_2025,
title = {Mapping {Ixodes} pacificus and {Borrelia} burgdorferi {Habitat} {Suitability} {Under} {Current} and {Mid}-{Century} {Climate} in the {Pacific} {Northwest} ({BC} and {WA})},
volume = {25},
issn = {1530-3667},
url = {https://www.liebertpub.com/doi/10.1089/vbz.2024.0025},
doi = {10.1089/vbz.2024.0025},
abstract = {Introduction: Lyme disease is the most common vector-borne disease in the United States and Canada. The primary vector for the causative agent of Lyme disease, Borrelia burgdorferi, in the Pacific Northwest is the western blacklegged tick, Ixodes pacificus.
Materials and Methods: Using active tick surveillance data from British Columbia, Canada, and Washington State, USA, habitat suitability models using MaxEnt (maximum entropy) were developed for I. pacificus to predict its current and mid-century geographic distributions. Passive surveillance data both from BC and WA were also visualized.
Results: According to the constructed models, the number of frost-free days during the winter is the most relevant predictor of its habitat suitability, followed by summer climate moisture, ecoregion, and mean minimum fall temperature. The ensemble geographic distribution map predicts that the coastal regions and inland valleys of British Columbia and the Puget Lowlands of Washington State provide the most suitable habitats for I. pacificus. The density map of ticks submitted from passive surveillance data was overlaid on the current distribution map and demonstrates the correlation between numbers of submissions and habitat suitability. Mid-century projections, based on current climate change predictions, indicate a range expansion, especially of low and moderate suitability, from current distribution. Regarding Lyme disease risk, I. pacificus identified from both active and passive surveillance and tested positive for B. burgdorferi were found to be in areas of moderate to very high suitability for I. pacificus.
Conclusion: According to developed models, the total suitable habitat area for I. pacificus will expand in the interior regions of British Columbia and Washington State. However, the risk remains small given relatively low infection rates among I. pacificus. Further studies are required to better understand how this might change in the future.},
number = {1},
urldate = {2025-01-28},
journal = {Vector-Borne and Zoonotic Diseases},
author = {Couloigner, Isabelle and Dizon, Carl and Mak, Sunny and Dykstra, Elizabeth and Fraser, Erin and Morshed, Muhammad and Iwasawa, Stefan and Checkley, Sylvia and Cork, Susan},
month = jan,
year = {2025},
note = {Publisher: Mary Ann Liebert, Inc., publishers},
keywords = {Terrestrial Ecoregions},
pages = {49--59},
}
Introduction: Lyme disease is the most common vector-borne disease in the United States and Canada. The primary vector for the causative agent of Lyme disease, Borrelia burgdorferi, in the Pacific Northwest is the western blacklegged tick, Ixodes pacificus. Materials and Methods: Using active tick surveillance data from British Columbia, Canada, and Washington State, USA, habitat suitability models using MaxEnt (maximum entropy) were developed for I. pacificus to predict its current and mid-century geographic distributions. Passive surveillance data both from BC and WA were also visualized. Results: According to the constructed models, the number of frost-free days during the winter is the most relevant predictor of its habitat suitability, followed by summer climate moisture, ecoregion, and mean minimum fall temperature. The ensemble geographic distribution map predicts that the coastal regions and inland valleys of British Columbia and the Puget Lowlands of Washington State provide the most suitable habitats for I. pacificus. The density map of ticks submitted from passive surveillance data was overlaid on the current distribution map and demonstrates the correlation between numbers of submissions and habitat suitability. Mid-century projections, based on current climate change predictions, indicate a range expansion, especially of low and moderate suitability, from current distribution. Regarding Lyme disease risk, I. pacificus identified from both active and passive surveillance and tested positive for B. burgdorferi were found to be in areas of moderate to very high suitability for I. pacificus. Conclusion: According to developed models, the total suitable habitat area for I. pacificus will expand in the interior regions of British Columbia and Washington State. However, the risk remains small given relatively low infection rates among I. pacificus. Further studies are required to better understand how this might change in the future.
Mapping and characterizing the visual impacts of the existing US wind turbine fleet.
Gleason, M.; Lopez, A.; and Rivers, M.
Applied Energy, 378: 124801. January 2025.
Paper
doi
link
bibtex
abstract
@article{gleason_mapping_2025,
title = {Mapping and characterizing the visual impacts of the existing {US} wind turbine fleet},
volume = {378},
issn = {0306-2619},
url = {https://www.sciencedirect.com/science/article/pii/S0306261924021846},
doi = {10.1016/j.apenergy.2024.124801},
abstract = {Visual impacts of wind turbines have been a persistent concern for wind energy development in the United States (US) for decades and remain a major source of project delays and cancellations. Assessments of visual impacts are frequently performed at a local scale for individual projects, but a comprehensive understanding of broader geographic patterns in visual impacts across the US is lacking. This paper presents a visual impact assessment of the existing land-based wind turbine fleet of the contiguous United States (CONUS). The assessment combines geographic information systems and 3D simulation methods to account for key factors driving the visual magnitude of impacts from the installed turbines. The results indicate that, despite the deployment of approximately 70,000 turbines and over 144 gigawatts of land-based wind in the CONUS, the visual impacts are very small when measured as a proportion of land area, population, and sensitive visual resources. Nonetheless, visual impacts are not evenly distributed: people experience a concentrated share in a small number of natural settings, primarily including plains, prairies, and deserts. Finally, we find that although increased density of wind development consistently leads to visual impacts across a greater proportion of land, it does not always lead to impacts to a greater share of the population. These findings suggest that visual impacts from wind energy are generally well-mitigated across the CONUS to date but also highlight the need for a deeper understanding of landscape sensitivity and individual perceptions of wind turbines in the most heavily impacted natural settings.},
urldate = {2026-06-09},
journal = {Applied Energy},
author = {Gleason, Michael and Lopez, Anthony and Rivers, Marie},
month = jan,
year = {2025},
keywords = {Terrestrial Ecoregions (Wiken 2011)},
pages = {124801},
}
Visual impacts of wind turbines have been a persistent concern for wind energy development in the United States (US) for decades and remain a major source of project delays and cancellations. Assessments of visual impacts are frequently performed at a local scale for individual projects, but a comprehensive understanding of broader geographic patterns in visual impacts across the US is lacking. This paper presents a visual impact assessment of the existing land-based wind turbine fleet of the contiguous United States (CONUS). The assessment combines geographic information systems and 3D simulation methods to account for key factors driving the visual magnitude of impacts from the installed turbines. The results indicate that, despite the deployment of approximately 70,000 turbines and over 144 gigawatts of land-based wind in the CONUS, the visual impacts are very small when measured as a proportion of land area, population, and sensitive visual resources. Nonetheless, visual impacts are not evenly distributed: people experience a concentrated share in a small number of natural settings, primarily including plains, prairies, and deserts. Finally, we find that although increased density of wind development consistently leads to visual impacts across a greater proportion of land, it does not always lead to impacts to a greater share of the population. These findings suggest that visual impacts from wind energy are generally well-mitigated across the CONUS to date but also highlight the need for a deeper understanding of landscape sensitivity and individual perceptions of wind turbines in the most heavily impacted natural settings.
Modeling nature-based restoration potential across aquatic–terrestrial boundaries.
Wegscheider, B.; Rideout, N. K.; Monk, W. A.; Gray, M. A.; Steeves, R.; and Baird, D. J.
Conservation Biology, n/a(n/a): e70046. 2025.
_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/cobi.70046
Paper
doi
link
bibtex
abstract
@article{wegscheider_modeling_2025,
title = {Modeling nature-based restoration potential across aquatic–terrestrial boundaries},
volume = {n/a},
copyright = {© 2025 His Majesty the King in Right of Canada and The Author(s). Conservation Biology published by Wiley Periodicals LLC on behalf of Society for Conservation Biology. Reproduced with the permission of the Minister of Environment and Climate Change Canada.},
issn = {1523-1739},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/cobi.70046},
doi = {10.1111/cobi.70046},
abstract = {Today, few watersheds remain untouched by global change processes arising from climate warming, impoundments, channelization, water extraction, pollution, and urbanization. The need for restoration has resulted in a myriad of interventions, generally performed at small scales, which have limited measurable impact in restoring biodiversity and ecosystem functions. We propose bringing nature-based restoration (also referred to as rewilding) principles to rivers and their watersheds to allow freshwater ecosystems to heal themselves and present a case study example for the Wolastoq, a transboundary watershed on North America's east coast. We aimed to identify key areas for the provision of the ecosystem function secondary productivity in the watershed and explored how the existing network of protected lands contributes to its conservation. We first developed species distribution models for 94 aquatic insects and 5 aerial insectivores and then considered human footprint and existing protected areas when employing spatial prioritization to meet 2 area-based targets (17\% and 30\% [i.e., Aichi Biodiversity Target 11 and Canada's 30×30, respectively]) for conservation or restoration of freshwater secondary production. Current conservation protection in the watershed was predicted to be insufficient to protect either ecosystem function providers or receivers of secondary production. By considering integrated conservation strategies, restoration and conservation actions can be better allocated throughout habitat patches to ensure sustained provision of ecosystem functions across the watershed. Nature-based restoration and conservation can help inform Canada's area-based targets, providing a framework for incorporating ecosystem functions into conservation planning and offering practical insights for policy and restoration efforts aimed at safeguarding biodiversity.},
language = {en},
number = {n/a},
urldate = {2025-05-08},
journal = {Conservation Biology},
author = {Wegscheider, B. and Rideout, N. K. and Monk, W. A. and Gray, M. A. and Steeves, R. and Baird, D. J.},
year = {2025},
note = {\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/cobi.70046},
keywords = {NALCMS},
pages = {e70046},
}
Today, few watersheds remain untouched by global change processes arising from climate warming, impoundments, channelization, water extraction, pollution, and urbanization. The need for restoration has resulted in a myriad of interventions, generally performed at small scales, which have limited measurable impact in restoring biodiversity and ecosystem functions. We propose bringing nature-based restoration (also referred to as rewilding) principles to rivers and their watersheds to allow freshwater ecosystems to heal themselves and present a case study example for the Wolastoq, a transboundary watershed on North America's east coast. We aimed to identify key areas for the provision of the ecosystem function secondary productivity in the watershed and explored how the existing network of protected lands contributes to its conservation. We first developed species distribution models for 94 aquatic insects and 5 aerial insectivores and then considered human footprint and existing protected areas when employing spatial prioritization to meet 2 area-based targets (17% and 30% [i.e., Aichi Biodiversity Target 11 and Canada's 30×30, respectively]) for conservation or restoration of freshwater secondary production. Current conservation protection in the watershed was predicted to be insufficient to protect either ecosystem function providers or receivers of secondary production. By considering integrated conservation strategies, restoration and conservation actions can be better allocated throughout habitat patches to ensure sustained provision of ecosystem functions across the watershed. Nature-based restoration and conservation can help inform Canada's area-based targets, providing a framework for incorporating ecosystem functions into conservation planning and offering practical insights for policy and restoration efforts aimed at safeguarding biodiversity.
Multi-Criteria Analysis for Navigating Wildfire Risk in Alaska's Matanuska-Susitna Borough.
DeMichele, K.
Ph.D. Thesis, University of Alaska Anchorage, Anchorage, Alaska, United States, January 2025.
Paper
link
bibtex
abstract
@phdthesis{demichele_multi-criteria_2025,
address = {Anchorage, Alaska, United States},
type = {Master of {Science}},
title = {Multi-{Criteria} {Analysis} for {Navigating} {Wildfire} {Risk} in {Alaska}'s {Matanuska}-{Susitna} {Borough}},
url = {https://www.proquest.com/openview/41673b80a6f8fcff933266c8f9389ccf/1?pq-origsite=gscholar&cbl=18750&diss=y},
abstract = {Explore millions of resources from scholarly journals, books, newspapers, videos and more, on the ProQuest Platform.},
language = {English},
urldate = {2026-06-09},
school = {University of Alaska Anchorage},
author = {DeMichele, Kathleen},
month = jan,
year = {2025},
keywords = {NALCMS},
}
Explore millions of resources from scholarly journals, books, newspapers, videos and more, on the ProQuest Platform.
Multidecadal change in pesticide concentrations relative to human health benchmarks in the Nation’s groundwater.
Stackpoole, S. M.; Lindsey, B. D.; and Nell, C. S.
Technical Report 2025-5081, U.S. Geological Survey, 2025.
ISSN: 2328-0328 Publication Title: Scientific Investigations Report
Paper
doi
link
bibtex
abstract
@techreport{stackpoole_multidecadal_2025,
title = {Multidecadal change in pesticide concentrations relative to human health benchmarks in the {Nation}’s groundwater},
url = {https://pubs.usgs.gov/publication/sir20255081},
abstract = {Groundwater-quality trend assessments identify aquifers that are responding to changes in pesticide use and the compounds that may pose a threat to water availability. The U.S. Geological Survey has been monitoring pesticide concentrations in groundwater for 25 principal aquifers across the conterminous United States since 1993. The groundwater well locations represent a range of soils, climate, and landforms. The wells are used to monitor groundwater underlying selected agricultural and urban settings and groundwater used for domestic supply. This study examined changes in relative concentrations, defined here as the percentage of wells with pesticide concentrations exceeding a human health benchmark (HHB). HHBs used in this report are legally enforceable drinking-water standards and nonenforceable drinking water levels. Relative pesticide concentration increases may lead to decreased water availability, as restrictions may be put in place for groundwater used as a drinking-water source.This study focused on concentration changes in 22 pesticides that were included...},
language = {en},
number = {2025-5081},
urldate = {2026-01-21},
institution = {U.S. Geological Survey},
author = {Stackpoole, Sarah M. and Lindsey, Bruce D. and Nell, Cee S.},
year = {2025},
doi = {10.3133/sir20255081},
note = {ISSN: 2328-0328
Publication Title: Scientific Investigations Report},
keywords = {Terrestrial Ecoregions},
}
Groundwater-quality trend assessments identify aquifers that are responding to changes in pesticide use and the compounds that may pose a threat to water availability. The U.S. Geological Survey has been monitoring pesticide concentrations in groundwater for 25 principal aquifers across the conterminous United States since 1993. The groundwater well locations represent a range of soils, climate, and landforms. The wells are used to monitor groundwater underlying selected agricultural and urban settings and groundwater used for domestic supply. This study examined changes in relative concentrations, defined here as the percentage of wells with pesticide concentrations exceeding a human health benchmark (HHB). HHBs used in this report are legally enforceable drinking-water standards and nonenforceable drinking water levels. Relative pesticide concentration increases may lead to decreased water availability, as restrictions may be put in place for groundwater used as a drinking-water source.This study focused on concentration changes in 22 pesticides that were included...
Multiple Elevation-Dependent Climate Signals From Quantitative Wood Anatomical Measurements of Rocky Mountain Bristlecone Pine.
Edwards, J.; Tintor, W. L.; Nolin, A. F.; Woodhouse, C. A.; von Arx, G.; and Anchukaitis, K. J.
Journal of Geophysical Research: Biogeosciences, 130(1): e2024JG008307. 2025.
_eprint: https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2024JG008307
Paper
doi
link
bibtex
abstract
@article{edwards_multiple_2025,
title = {Multiple {Elevation}-{Dependent} {Climate} {Signals} {From} {Quantitative} {Wood} {Anatomical} {Measurements} of {Rocky} {Mountain} {Bristlecone} {Pine}},
volume = {130},
copyright = {© 2025. American Geophysical Union. All Rights Reserved.},
issn = {2169-8961},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1029/2024JG008307},
doi = {10.1029/2024JG008307},
abstract = {Southwestern North America has experienced significant temperature increases over the last century, leading to intensified droughts that significantly affect montane forests. Although tree-ring data have provided long-term context for this recent drought severity, the varying physiological responses of trees to climate variability make it challenging to disentangle the combined influence of temperature and soil moisture. Here we investigate complex climate-growth relationships in Rocky Mountain bristlecone pine (Pinus aristata) at a low-elevation and a high-elevation site using quantitative wood anatomy (QWA). Significant correlations with climate were found for low-elevation tree-ring width (TRW) and earlywood chronologies, including positive correlations with spring and early summer precipitation and drought indices and negative correlations with spring and early summer maximum temperatures. At high elevations, TRW and earlywood chronologies show positive responses to summer moisture, whereas latewood chronologies correlate positively with August and September maximum temperatures and negatively with August precipitation. We leverage this differing seasonality of moisture and temperature signals and compare the QWA data to known droughts. The earlywood lumen area is found to be highly responsive to drought because of its physiological reliance on water availability for maintaining turgor pressure during cell enlargement. We also observed a decline in temperature sensitivity at the high elevation site, suggesting shifts in the dominance of limiting factors. Integrating QWA with traditional dendrochronology improves interpretations of tree-ring data for use in climate reconstruction, offering detailed insights into tree physiological responses and the mix of environmental and developmental controls on cell growth.},
language = {en},
number = {1},
urldate = {2026-05-26},
journal = {Journal of Geophysical Research: Biogeosciences},
author = {Edwards, Julie and Tintor, Will L. and Nolin, Alexandre F. and Woodhouse, Connie A. and von Arx, Georg and Anchukaitis, Kevin J.},
year = {2025},
note = {\_eprint: https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2024JG008307},
keywords = {Terrestrial Ecoregions (Wiken 2011)},
pages = {e2024JG008307},
}
Southwestern North America has experienced significant temperature increases over the last century, leading to intensified droughts that significantly affect montane forests. Although tree-ring data have provided long-term context for this recent drought severity, the varying physiological responses of trees to climate variability make it challenging to disentangle the combined influence of temperature and soil moisture. Here we investigate complex climate-growth relationships in Rocky Mountain bristlecone pine (Pinus aristata) at a low-elevation and a high-elevation site using quantitative wood anatomy (QWA). Significant correlations with climate were found for low-elevation tree-ring width (TRW) and earlywood chronologies, including positive correlations with spring and early summer precipitation and drought indices and negative correlations with spring and early summer maximum temperatures. At high elevations, TRW and earlywood chronologies show positive responses to summer moisture, whereas latewood chronologies correlate positively with August and September maximum temperatures and negatively with August precipitation. We leverage this differing seasonality of moisture and temperature signals and compare the QWA data to known droughts. The earlywood lumen area is found to be highly responsive to drought because of its physiological reliance on water availability for maintaining turgor pressure during cell enlargement. We also observed a decline in temperature sensitivity at the high elevation site, suggesting shifts in the dominance of limiting factors. Integrating QWA with traditional dendrochronology improves interpretations of tree-ring data for use in climate reconstruction, offering detailed insights into tree physiological responses and the mix of environmental and developmental controls on cell growth.
National Exposed Sediment Search and Inventory (NESSI): Utilizing Satellite Imagery and Machine Learning to Identify Dredged Sediment Placement Site Recovery.
Huff, T. P.; Russ, E. R.; and Swannack, T. M.
Remote Sensing, 17(2): 186. January 2025.
Number: 2 Publisher: Multidisciplinary Digital Publishing Institute
Paper
doi
link
bibtex
abstract
@article{huff_national_2025,
title = {National {Exposed} {Sediment} {Search} and {Inventory} ({NESSI}): {Utilizing} {Satellite} {Imagery} and {Machine} {Learning} to {Identify} {Dredged} {Sediment} {Placement} {Site} {Recovery}},
volume = {17},
copyright = {http://creativecommons.org/licenses/by/3.0/},
issn = {2072-4292},
shorttitle = {National {Exposed} {Sediment} {Search} and {Inventory} ({NESSI})},
url = {https://www.mdpi.com/2072-4292/17/2/186},
doi = {10.3390/rs17020186},
abstract = {Anthropogenic activity leads to changes in sediment dynamics, creating imbalances in sediment distributions across the landscape. These imbalances can be variable within a littoral system, with adjacent areas experiencing sediment starvation and excess sediment. Historically, sediments were viewed as an inconvenient biproduct destined for disposal; however, beneficial use of dredge material (BUDM) is a practice that has grown as a preferred methodology for utilizing sediment as a resource to help alleviate the sediment imbalances within a system. BUDM enables organizations to adopt a more innovative and sustainable sediment management approach that also provides ecological, economic, and social co-benefits. Although location data are available on BUDM sites, especially in the US, there is limited understanding on how these sites evolve within the larger landscape, which is necessary for quantifying the co-benefits. To move towards BUDM more broadly, new tools need to be developed to allow researchers and managers to understand the effects and benefits of this practice. The National Exposed Sediment Search and Inventory (NESSI) was built to show the capability of using machine learning techniques to identify dredged sediments. A combination of satellite imagery data obtained and processed using Google Earth Engine and machine learning algorithms were applied at known dredged material placement sites to develop a time series of dredged material placement events and subsequent site recovery. These disturbance-to-recovery time series are then used in a landscape analysis application to better understand site evolution within the context of the surrounding areas.},
language = {en},
number = {2},
urldate = {2025-01-28},
journal = {Remote Sensing},
author = {Huff, Thomas P. and Russ, Emily R. and Swannack, Todd M.},
month = jan,
year = {2025},
note = {Number: 2
Publisher: Multidisciplinary Digital Publishing Institute},
keywords = {NALCMS},
pages = {186},
}
Anthropogenic activity leads to changes in sediment dynamics, creating imbalances in sediment distributions across the landscape. These imbalances can be variable within a littoral system, with adjacent areas experiencing sediment starvation and excess sediment. Historically, sediments were viewed as an inconvenient biproduct destined for disposal; however, beneficial use of dredge material (BUDM) is a practice that has grown as a preferred methodology for utilizing sediment as a resource to help alleviate the sediment imbalances within a system. BUDM enables organizations to adopt a more innovative and sustainable sediment management approach that also provides ecological, economic, and social co-benefits. Although location data are available on BUDM sites, especially in the US, there is limited understanding on how these sites evolve within the larger landscape, which is necessary for quantifying the co-benefits. To move towards BUDM more broadly, new tools need to be developed to allow researchers and managers to understand the effects and benefits of this practice. The National Exposed Sediment Search and Inventory (NESSI) was built to show the capability of using machine learning techniques to identify dredged sediments. A combination of satellite imagery data obtained and processed using Google Earth Engine and machine learning algorithms were applied at known dredged material placement sites to develop a time series of dredged material placement events and subsequent site recovery. These disturbance-to-recovery time series are then used in a landscape analysis application to better understand site evolution within the context of the surrounding areas.
Novel environmental variables help explain winter weather effects on activity and habitat selection of greater sage-grouse along the border of Colorado and Wyoming, USA.
Wanner, C. P.; Pratt, A. C.; Reinking, A. K.; Liston, G. E.; and Beck, J. L.
International Journal of Biometeorology, 69(2): 469–485. February 2025.
Paper
doi
link
bibtex
abstract
@article{wanner_novel_2025,
title = {Novel environmental variables help explain winter weather effects on activity and habitat selection of greater sage-grouse along the border of {Colorado} and {Wyoming}, {USA}},
volume = {69},
issn = {1432-1254},
url = {https://doi.org/10.1007/s00484-024-02827-x},
doi = {10.1007/s00484-024-02827-x},
abstract = {For non-hibernating species within temperate climates, survival during severe winter weather often depends on individuals’ behavioral response and available refugia. Identifying refugia habitat that sustains populations during adverse winter conditions can be difficult and complex. This study provides an example of how modeled, biologically relevant snow and weather information can help identify important relationships between habitat selection and dynamic winter landscapes using greater sage-grouse (Centrocercus urophasianus, hereafter “sage-grouse”) as a model species. We evaluated whether sage-grouse responded to weather conditions in two ways: through (1) positive selection for refugia habitat to minimize adverse weather exposure, or (2) lowered activity level to minimize thermoregulation and locomotion expense. Our results suggested that sage-grouse respond to winter weather conditions by seeking refugia rather than changing daily activity levels. During periods of lower wind chill temperatures and greater wind speeds, sage-grouse selected areas with sheltered aspects and greater sagebrush (Artemisia spp.) cover. Broadly, sage-grouse selected winter home ranges in sagebrush shrublands characterized by higher wind chill temperatures, greater wind speeds, and greater blizzarding conditions. However, within these home ranges, sage-grouse specifically selected habitats with greater above-snow sagebrush cover, lower wind speeds, and lower blizzarding conditions. Our study underscores the importance of examining habitat selection at narrower temporal scales than entire seasons and demonstrates the value of incorporating targeted weather variables that wholistically synthesize winter conditions. This research allows identification of refugia habitat that sustain populations during winter disproportionate to their spatial extent or frequency of use, facilitating more targeted management and conservation efforts.},
language = {en},
number = {2},
urldate = {2025-05-08},
journal = {International Journal of Biometeorology},
author = {Wanner, Caitlyn P. and Pratt, Aaron C. and Reinking, Adele K. and Liston, Glen E. and Beck, Jeffrey L.},
month = feb,
year = {2025},
keywords = {NALCMS},
pages = {469--485},
}
For non-hibernating species within temperate climates, survival during severe winter weather often depends on individuals’ behavioral response and available refugia. Identifying refugia habitat that sustains populations during adverse winter conditions can be difficult and complex. This study provides an example of how modeled, biologically relevant snow and weather information can help identify important relationships between habitat selection and dynamic winter landscapes using greater sage-grouse (Centrocercus urophasianus, hereafter “sage-grouse”) as a model species. We evaluated whether sage-grouse responded to weather conditions in two ways: through (1) positive selection for refugia habitat to minimize adverse weather exposure, or (2) lowered activity level to minimize thermoregulation and locomotion expense. Our results suggested that sage-grouse respond to winter weather conditions by seeking refugia rather than changing daily activity levels. During periods of lower wind chill temperatures and greater wind speeds, sage-grouse selected areas with sheltered aspects and greater sagebrush (Artemisia spp.) cover. Broadly, sage-grouse selected winter home ranges in sagebrush shrublands characterized by higher wind chill temperatures, greater wind speeds, and greater blizzarding conditions. However, within these home ranges, sage-grouse specifically selected habitats with greater above-snow sagebrush cover, lower wind speeds, and lower blizzarding conditions. Our study underscores the importance of examining habitat selection at narrower temporal scales than entire seasons and demonstrates the value of incorporating targeted weather variables that wholistically synthesize winter conditions. This research allows identification of refugia habitat that sustain populations during winter disproportionate to their spatial extent or frequency of use, facilitating more targeted management and conservation efforts.
Patterns and Consequences of Monarch Wintering Behavior in the Southeastern US.
Hovland, C. P.
Ph.D. Thesis, December 2025.
Paper
link
bibtex
abstract
@phdthesis{hovland_patterns_2025,
title = {Patterns and {Consequences} of {Monarch} {Wintering} {Behavior} in the {Southeastern} {US}},
url = {https://openscholar.uga.edu/record/27798},
abstract = {Eastern North American monarchs (Danaus plexippus) employ a diversity of overwintering behaviors, including long distance migration to central Mexico, but also winter-breeding and non-breeding overwintering in the southeastern United States. Winter-breeding alters infectious disease dynamics, increasing the prevalence of the monarch parasite Ophryocystis elektroscirrha (O.E.) in winter-breeding populations. I modeled interactions between returning spring migrants and resident winter-breeding monarchs in a simulated habitat patch and found that fewer new migrants were recruited from the patch into the migration when residents were present, and that migrants eclosing in habitat patches shared with residents were more likely to be parasitized than in habitat used only by migrants. Additionally, I fit logistic regression models to associate the breeding status of winter monarchs in the Southeast with habitat characteristics. My results concur with the idea that winter-breeding monarchs use human-modified habitat and suggest non-breeding monarchs may winter in wetlands in warm regions},
language = {eng},
urldate = {2026-06-01},
author = {Hovland, Charlotte Pastor},
collaborator = {Altizer, Sonia and Hall, Richard and Lunn, Tamika},
month = dec,
year = {2025},
keywords = {NALCMS},
}
Eastern North American monarchs (Danaus plexippus) employ a diversity of overwintering behaviors, including long distance migration to central Mexico, but also winter-breeding and non-breeding overwintering in the southeastern United States. Winter-breeding alters infectious disease dynamics, increasing the prevalence of the monarch parasite Ophryocystis elektroscirrha (O.E.) in winter-breeding populations. I modeled interactions between returning spring migrants and resident winter-breeding monarchs in a simulated habitat patch and found that fewer new migrants were recruited from the patch into the migration when residents were present, and that migrants eclosing in habitat patches shared with residents were more likely to be parasitized than in habitat used only by migrants. Additionally, I fit logistic regression models to associate the breeding status of winter monarchs in the Southeast with habitat characteristics. My results concur with the idea that winter-breeding monarchs use human-modified habitat and suggest non-breeding monarchs may winter in wetlands in warm regions
Perturbations et régénérations des forêts canadiennes par télédétection et apprentissage profond.
Perbet, P.
Ph.D. Thesis, Université Laval, Quebec City, QC, 2025.
Paper
link
bibtex
abstract
@phdthesis{perbet_perturbations_2025,
address = {Quebec City, QC},
title = {Perturbations et régénérations des forêts canadiennes par télédétection et apprentissage profond},
url = {https://hdl.handle.net/20.500.11794/178085},
abstract = {La forêt canadienne joue un rôle crucial en fournissant des biens et services écologiques et économiques, en régulant le climat, et en agissant comme un puits de carbone. Cependant, les perturbations forestières peuvent transformer la forêt en source de carbone. Les changements climatiques ont intensifié la fréquence et l'intensité des perturbations, et potentiellement modifié la capacité de régénération des forêts. Dans ce contexte, la surveillance précise et continue de la dynamique forestière devient stratégique pour les objectifs de carboneutralité du Canada. Plusieurs produits cartographiques développées à partir d'images satellitaires, disponibles depuis quelques années, permettent de suivre les perturbations et l'évolution de la structure des forêts. Cependant, les modèles traditionnellement utilisés rencontrent des difficultés à distinguer les perturbations mineures et les changements progressifs. De plus, les approches utilisées pour observer la croissance post-perturbation à grande échelle, sous-estiment la durée réelle de restauration. L'objectif principal de cette thèse est d'évaluer les méthodes d'apprentissage profond pour améliorer et mettre à jour les cartographies temporelles de la forêt boréale canadienne, tant en ce qui concerne les perturbations que la régénération forestière. Les deux premiers chapitres portent sur l'évaluation de l'apport des méthodes d'apprentissage profond pour la classification des perturbations forestières. Ces nouvelles approches ont d'abord été appliquées à la forêt boréale du Québec dans le premier chapitre, puis étendues à l'ensemble du territoire canadien dans le second. Le troisième chapitre vise quant à lui à évaluer une méthode d'apprentissage profond pour le suivi de la régénération de la biomasse forestière. Les résultats ont montré que l'utilisation d'un réseau de neurones convolutifs unidimensionnels pour classifier des séquences spectro-temporelles courtes améliore la classification des perturbations partielles et progressives. Les cartes de perturbations annuelles au Canada entre 1985 et 2024 présentent de nouvelles classes encore jamais cartographiées à cette échelle spatio-temporelle. En particulier, le modèle de classification à correctement identifié les défoliations moyennes et sévères et résultantes d'épidémies d'insectes forestiers. Dans le troisième chapitre, une approche combinant la série temporelle Landsat, les données de Lidar aérien et un réseau de neurones convolutifs de type Unet a permis de cartographier la biomasse aérienne. Ces cartes annuelles de biomasse ont montré leur intérêt pour observer la dynamique forestière après les perturbations sévères et identifier les zones dont la croissance était problématique. En développant ces nouveaux jeux de données à partir de modèle d'apprentissage profond, cette thèse a permis d'améliorer et de mettre à jour les connaissances sur la dynamique forestière au Canada.},
language = {French \& English},
urldate = {2026-06-01},
school = {Université Laval},
author = {Perbet, Pauline},
year = {2025},
keywords = {NALCMS},
}
La forêt canadienne joue un rôle crucial en fournissant des biens et services écologiques et économiques, en régulant le climat, et en agissant comme un puits de carbone. Cependant, les perturbations forestières peuvent transformer la forêt en source de carbone. Les changements climatiques ont intensifié la fréquence et l'intensité des perturbations, et potentiellement modifié la capacité de régénération des forêts. Dans ce contexte, la surveillance précise et continue de la dynamique forestière devient stratégique pour les objectifs de carboneutralité du Canada. Plusieurs produits cartographiques développées à partir d'images satellitaires, disponibles depuis quelques années, permettent de suivre les perturbations et l'évolution de la structure des forêts. Cependant, les modèles traditionnellement utilisés rencontrent des difficultés à distinguer les perturbations mineures et les changements progressifs. De plus, les approches utilisées pour observer la croissance post-perturbation à grande échelle, sous-estiment la durée réelle de restauration. L'objectif principal de cette thèse est d'évaluer les méthodes d'apprentissage profond pour améliorer et mettre à jour les cartographies temporelles de la forêt boréale canadienne, tant en ce qui concerne les perturbations que la régénération forestière. Les deux premiers chapitres portent sur l'évaluation de l'apport des méthodes d'apprentissage profond pour la classification des perturbations forestières. Ces nouvelles approches ont d'abord été appliquées à la forêt boréale du Québec dans le premier chapitre, puis étendues à l'ensemble du territoire canadien dans le second. Le troisième chapitre vise quant à lui à évaluer une méthode d'apprentissage profond pour le suivi de la régénération de la biomasse forestière. Les résultats ont montré que l'utilisation d'un réseau de neurones convolutifs unidimensionnels pour classifier des séquences spectro-temporelles courtes améliore la classification des perturbations partielles et progressives. Les cartes de perturbations annuelles au Canada entre 1985 et 2024 présentent de nouvelles classes encore jamais cartographiées à cette échelle spatio-temporelle. En particulier, le modèle de classification à correctement identifié les défoliations moyennes et sévères et résultantes d'épidémies d'insectes forestiers. Dans le troisième chapitre, une approche combinant la série temporelle Landsat, les données de Lidar aérien et un réseau de neurones convolutifs de type Unet a permis de cartographier la biomasse aérienne. Ces cartes annuelles de biomasse ont montré leur intérêt pour observer la dynamique forestière après les perturbations sévères et identifier les zones dont la croissance était problématique. En développant ces nouveaux jeux de données à partir de modèle d'apprentissage profond, cette thèse a permis d'améliorer et de mettre à jour les connaissances sur la dynamique forestière au Canada.
Predicting Rapid, Climate-Driven Shifts in North American Habitat Suitability for the Purple Pitcher Plant (Sarracenia purpurea L.).
Brown, C. H.; Frick, B. L.; and Mohan, J. E.
Plants, 14(21): 3337. January 2025.
Publisher: Multidisciplinary Digital Publishing Institute
Paper
doi
link
bibtex
abstract
@article{brown_predicting_2025,
title = {Predicting {Rapid}, {Climate}-{Driven} {Shifts} in {North} {American} {Habitat} {Suitability} for the {Purple} {Pitcher} {Plant} ({Sarracenia} purpurea {L}.)},
volume = {14},
copyright = {http://creativecommons.org/licenses/by/3.0/},
issn = {2223-7747},
url = {https://www.mdpi.com/2223-7747/14/21/3337},
doi = {10.3390/plants14213337},
abstract = {Climate change is shifting where suitable habitats occur for many species across the planet. Sarracenia purpurea L., the most widely distributed pitcher plant species in North America, already faces significant threats from land use change. While S. purpurea is well studied at physiological and local scales, threat assessments for this species at biogeographic scales are absent. Here, we remedy this by using Habitat Suitability Models to predict current suitable habitats and estimate climate-based shifts in the suitable habitat for S. purpurea in the near (2040) and long term (2100). The models predicted large areas of habitat loss in the southeastern United States and the western portion of the Great Lakes region by 2040. While the models also predict significant gains in suitable habitats north of the current S. purpurea range, the limited dispersal ability of this species precludes the possibility of natural migration to newly suitable habitats. Our results suggest that the degradation of considerable portions of current suitable habitats is already occurring and will continue in the future. Particularly threatened are the southern subspecies (e.g., Sarracenia purpurea subsp. venosa) of S. purpurea. We therefore urge land managers to make conservation efforts targeting threatened subspecies and encourage further the biogeographic investigation of less widely distributed congenerics of S. purpurea.},
language = {en},
number = {21},
urldate = {2026-01-21},
journal = {Plants},
author = {Brown, Christian H. and Frick, Benjamin L. and Mohan, Jacqueline E.},
month = jan,
year = {2025},
note = {Publisher: Multidisciplinary Digital Publishing Institute},
keywords = {NALCMS},
pages = {3337},
}
Climate change is shifting where suitable habitats occur for many species across the planet. Sarracenia purpurea L., the most widely distributed pitcher plant species in North America, already faces significant threats from land use change. While S. purpurea is well studied at physiological and local scales, threat assessments for this species at biogeographic scales are absent. Here, we remedy this by using Habitat Suitability Models to predict current suitable habitats and estimate climate-based shifts in the suitable habitat for S. purpurea in the near (2040) and long term (2100). The models predicted large areas of habitat loss in the southeastern United States and the western portion of the Great Lakes region by 2040. While the models also predict significant gains in suitable habitats north of the current S. purpurea range, the limited dispersal ability of this species precludes the possibility of natural migration to newly suitable habitats. Our results suggest that the degradation of considerable portions of current suitable habitats is already occurring and will continue in the future. Particularly threatened are the southern subspecies (e.g., Sarracenia purpurea subsp. venosa) of S. purpurea. We therefore urge land managers to make conservation efforts targeting threatened subspecies and encourage further the biogeographic investigation of less widely distributed congenerics of S. purpurea.
Predicting Suitable Habitat for Skwenkwínem (Claytonia lanceolata), a Culturally Significant Plant, Using a Reproducible Species Distribution Model.
Pilat, H. E.; Ensing, D. J.; and Pither, J.
Ecology and Evolution, 15(12): e72615. 2025.
_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.72615
Paper
doi
link
bibtex
abstract
@article{pilat_predicting_2025,
title = {Predicting {Suitable} {Habitat} for {Skwenkwínem} ({Claytonia} lanceolata), a {Culturally} {Significant} {Plant}, {Using} a {Reproducible} {Species} {Distribution} {Model}},
volume = {15},
copyright = {© 2025 His Majesty the King in Right of Canada and The Author(s). Ecology and Evolution published by British Ecological Society and John Wiley \& Sons Ltd. Reproduced with the permission of the Minister of Agriculture and Agri-Food Canada.},
issn = {2045-7758},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/ece3.72615},
doi = {10.1002/ece3.72615},
abstract = {Colonialism and a changing climate have threatened culturally significant food plants and the well-being of those who rely on them. An example is skwenkwínem (western spring beauty, Claytonia lanceolata: Pursh), which has declined in quality and accessibility for the Secwépemc People of Skeetchestn Indian Band. This study aims to provide predictions and visual tools to inform Skeetchestn's conservation efforts for their skwenkwínem patches, from a computationally reproducible species distribution model. Using a set of predictors informed by qualitative interviews with Skeetchestn community members (Informed model), and the 19 bioclimatic variables from WorldClim (WorldClim model), we predicted suitable habitat for skwenkwínem over its known range. For both our total study area and Skeetchestn Territory, we predicted a decrease in suitable habitat from the present to 2081–2100, based on the WorldClim CMIP6 climate change scenario SSP 5–8.5 (worst case). These predictions use Skeetchestn's knowledge of skwenkwínem and commonly used bioclimatic predictors to support Skeetchestn's goals of food sovereignty.},
language = {en},
number = {12},
urldate = {2026-05-28},
journal = {Ecology and Evolution},
author = {Pilat, Hannah E. and Ensing, David J. and Pither, Jason},
year = {2025},
note = {\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.72615},
keywords = {NALCMS},
pages = {e72615},
}
Colonialism and a changing climate have threatened culturally significant food plants and the well-being of those who rely on them. An example is skwenkwínem (western spring beauty, Claytonia lanceolata: Pursh), which has declined in quality and accessibility for the Secwépemc People of Skeetchestn Indian Band. This study aims to provide predictions and visual tools to inform Skeetchestn's conservation efforts for their skwenkwínem patches, from a computationally reproducible species distribution model. Using a set of predictors informed by qualitative interviews with Skeetchestn community members (Informed model), and the 19 bioclimatic variables from WorldClim (WorldClim model), we predicted suitable habitat for skwenkwínem over its known range. For both our total study area and Skeetchestn Territory, we predicted a decrease in suitable habitat from the present to 2081–2100, based on the WorldClim CMIP6 climate change scenario SSP 5–8.5 (worst case). These predictions use Skeetchestn's knowledge of skwenkwínem and commonly used bioclimatic predictors to support Skeetchestn's goals of food sovereignty.
Predicting carbon storage in North American maritime boreal forests under combined disturbances.
Wilson, E. R.; Leroux, S. J.; Moran, R.; Whitaker, D.; and Wiersma, Y.
Landscape Ecology, 40(7): 131. July 2025.
Paper
doi
link
bibtex
abstract
@article{wilson_predicting_2025,
title = {Predicting carbon storage in {North} {American} maritime boreal forests under combined disturbances},
volume = {40},
issn = {1572-9761},
url = {https://doi.org/10.1007/s10980-025-02145-6},
doi = {10.1007/s10980-025-02145-6},
abstract = {Understanding how forest disturbances, such as fire and herbivory, affect carbon storage across the landscape can help inform forest management and disturbance mitigation. However, this is made difficult by uncertainties in carbon predictions and limited records of disturbance histories.},
language = {en},
number = {7},
urldate = {2025-07-31},
journal = {Landscape Ecology},
author = {Wilson, Emmerson R. and Leroux, Shawn J. and Moran, Rachael and Whitaker, Darroch and Wiersma, Yolanda},
month = jul,
year = {2025},
keywords = {NALCMS},
pages = {131},
}
Understanding how forest disturbances, such as fire and herbivory, affect carbon storage across the landscape can help inform forest management and disturbance mitigation. However, this is made difficult by uncertainties in carbon predictions and limited records of disturbance histories.
Quantifying Carbon Pools and Fluxes in Southern Ontario Temperate Swamps.
Schmidt, M. A.; Santia, V.; Price, S.; Khumbani, H. A. W.; and Strack, M.
Mires and Peat, 32. November 2025.
Publisher: International Mire Conservation Group and International Peatland Society
Paper
doi
link
bibtex
abstract
@article{schmidt_quantifying_2025,
title = {Quantifying {Carbon} {Pools} and {Fluxes} in {Southern} {Ontario} {Temperate} {Swamps}},
volume = {32},
url = {https://www.mires-and-peat.net/article/151276},
doi = {10.19189/001c.151276},
abstract = {Swamps are treed wetlands, which account for the highest areal extent of wetland types in Southern Ontario due to the difficulties of conversion for development and agriculture. However, little is known about the environmental factors and processes that influence carbon (C) dynamics or the resulting C stocks and fluxes therein. We studied 12 swamps across Southern Ontario for 12 consecutive months to measure the exchange of carbon dioxide (CO{\textasciitilde}2{\textasciitilde}) and methane (CH{\textasciitilde}4{\textasciitilde}) between soil and atmosphere and estimate current C stocks in soil and biomass. We found mean growing season soil respiration of CO{\textasciitilde}2{\textasciitilde} and CH{\textasciitilde}4{\textasciitilde} across the swamps ranged from 11 g m{\textasciicircum}-2{\textasciicircum} d{\textasciicircum}-1{\textasciicircum} to 49 g m{\textasciicircum}-2{\textasciicircum} d{\textasciicircum}-1{\textasciicircum} and -3 mg m{\textasciicircum}-2{\textasciicircum} d{\textasciicircum}-1{\textasciicircum} to 44 mg m{\textasciicircum}-2{\textasciicircum} d{\textasciicircum}-1{\textasciicircum}, respectively, with a water table threshold at about 20 cm where fluxes changed substantially. Biomass stored 7.92–37.0 kg m{\textasciicircum}-2{\textasciicircum} of C across the sites, and soil stored 11.6–35.5 kg m{\textasciicircum}-2{\textasciicircum}. Over the study year, the swamps functioned as C sinks and followed similar patterns of relationships to environmental conditions as bogs and fens, with little difference between hydrogeomorphic settings or canopy types.},
language = {en},
urldate = {2026-01-21},
journal = {Mires and Peat},
author = {Schmidt, Megan A. and Santia, Veronica and Price, Samantha and Khumbani, Harry A. W. and Strack, Maria},
month = nov,
year = {2025},
note = {Publisher: International Mire Conservation Group and International Peatland Society},
keywords = {Climate Zones, NALCMS, North American Forests, Population Density},
}
Swamps are treed wetlands, which account for the highest areal extent of wetland types in Southern Ontario due to the difficulties of conversion for development and agriculture. However, little is known about the environmental factors and processes that influence carbon (C) dynamics or the resulting C stocks and fluxes therein. We studied 12 swamps across Southern Ontario for 12 consecutive months to measure the exchange of carbon dioxide (CO~2~) and methane (CH~4~) between soil and atmosphere and estimate current C stocks in soil and biomass. We found mean growing season soil respiration of CO~2~ and CH~4~ across the swamps ranged from 11 g m\textasciicircum-2\textasciicircum d\textasciicircum-1\textasciicircum to 49 g m\textasciicircum-2\textasciicircum d\textasciicircum-1\textasciicircum and -3 mg m\textasciicircum-2\textasciicircum d\textasciicircum-1\textasciicircum to 44 mg m\textasciicircum-2\textasciicircum d\textasciicircum-1\textasciicircum, respectively, with a water table threshold at about 20 cm where fluxes changed substantially. Biomass stored 7.92–37.0 kg m\textasciicircum-2\textasciicircum of C across the sites, and soil stored 11.6–35.5 kg m\textasciicircum-2\textasciicircum. Over the study year, the swamps functioned as C sinks and followed similar patterns of relationships to environmental conditions as bogs and fens, with little difference between hydrogeomorphic settings or canopy types.
RDAforest: Identifying Environmental Drivers of Polygenic Adaptation.
Matz, M. V.; and Black, K. L.
Molecular Ecology Resources, 25(8): e70002. 2025.
_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/1755-0998.70002
Paper
doi
link
bibtex
abstract
@article{matz_rdaforest_2025,
title = {{RDAforest}: {Identifying} {Environmental} {Drivers} of {Polygenic} {Adaptation}},
volume = {25},
copyright = {© 2025 The Author(s). Molecular Ecology Resources published by John Wiley \& Sons Ltd.},
issn = {1755-0998},
shorttitle = {{RDAforest}},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/1755-0998.70002},
doi = {10.1111/1755-0998.70002},
abstract = {Identifying environmental gradients driving genetic adaptation is one of the major goals of ecological genomics. We present RDAforest, a methodology that leverages the predominantly polygenic nature of adaptation and harnesses the versatility of random forest regression to solve this problem. Instead of computing individual SNP-environment associations, RDAforest seeks to explain the overall genetic covariance structure based on multiple environmental predictors. By relying on random forest instead of linear regression, this method can detect non-linear and non-monotonous dependencies as well as all possible interactions between predictors. It also incorporates a novel procedure to select the best predictor out of several correlated ones, and uses jackknifing to model uncertainty of genetic structure determination. Lastly, our methodology incorporates delineation and plotting of “adaptive neighbourhoods”—areas on the landscape that are predicted to harbour differentially adapted individuals. Such maps can be used as a guide for planning conservation and ecological restoration efforts. We demonstrate the use of RDAforest in two simulated scenarios and one real dataset (North American grey wolves).},
language = {en},
number = {8},
urldate = {2026-01-21},
journal = {Molecular Ecology Resources},
author = {Matz, Mikhail V. and Black, Kristina L.},
year = {2025},
note = {\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/1755-0998.70002},
keywords = {NALCMS},
pages = {e70002},
}
Identifying environmental gradients driving genetic adaptation is one of the major goals of ecological genomics. We present RDAforest, a methodology that leverages the predominantly polygenic nature of adaptation and harnesses the versatility of random forest regression to solve this problem. Instead of computing individual SNP-environment associations, RDAforest seeks to explain the overall genetic covariance structure based on multiple environmental predictors. By relying on random forest instead of linear regression, this method can detect non-linear and non-monotonous dependencies as well as all possible interactions between predictors. It also incorporates a novel procedure to select the best predictor out of several correlated ones, and uses jackknifing to model uncertainty of genetic structure determination. Lastly, our methodology incorporates delineation and plotting of “adaptive neighbourhoods”—areas on the landscape that are predicted to harbour differentially adapted individuals. Such maps can be used as a guide for planning conservation and ecological restoration efforts. We demonstrate the use of RDAforest in two simulated scenarios and one real dataset (North American grey wolves).
Rapid Rates of Change in Multiple Biodiversity Measures in Breeding Avian Assemblages.
Acosta Alamo, M.; and Manne, L. L.
Diversity, 17(2): 127. February 2025.
Number: 2 Publisher: Multidisciplinary Digital Publishing Institute
Paper
doi
link
bibtex
abstract
@article{acosta_alamo_rapid_2025,
title = {Rapid {Rates} of {Change} in {Multiple} {Biodiversity} {Measures} in {Breeding} {Avian} {Assemblages}},
volume = {17},
copyright = {http://creativecommons.org/licenses/by/3.0/},
issn = {1424-2818},
url = {https://www.mdpi.com/1424-2818/17/2/127},
doi = {10.3390/d17020127},
abstract = {Species respond to environmental changes at different rates, resulting in no change, increased, or decreased resemblance among species assemblages. We explored the patterns of rate of change in bird diversity in five ecoregions of the United States across 30 years. We characterized the rate of change in breeding avian biodiversity using measures of species richness and assemblage dissimilarity, detecting changes in the same for 50\% and 70\% of the assemblages, respectively. Fast richness declines and species replacement were associated with rapid biotic differentiation within ecoregions, while rapid increases in richness and slowed species replacement were tied to high within-ecoregion biotic homogenization rates. Further, it was exceedingly rare for any biodiversity measured to change slowly over time; most changes were rapid. For the species assemblages studied here, changes in assemblage dissimilarity patterns were more common than changes in species richness, even though species richness has received more research attention. These results underscore the need to combine measures capturing different aspects of biodiversity (e.g., species richness and assemblage differentiation) to provide greater insight into the underlying mechanisms and pathways driving changes in biodiversity patterns.},
language = {en},
number = {2},
urldate = {2025-07-31},
journal = {Diversity},
author = {Acosta Alamo, Marlen and Manne, Lisa L.},
month = feb,
year = {2025},
note = {Number: 2
Publisher: Multidisciplinary Digital Publishing Institute},
keywords = {Terrestrial Ecoregions, Terrestrial Ecoregions (CEC 1997)},
pages = {127},
}
Species respond to environmental changes at different rates, resulting in no change, increased, or decreased resemblance among species assemblages. We explored the patterns of rate of change in bird diversity in five ecoregions of the United States across 30 years. We characterized the rate of change in breeding avian biodiversity using measures of species richness and assemblage dissimilarity, detecting changes in the same for 50% and 70% of the assemblages, respectively. Fast richness declines and species replacement were associated with rapid biotic differentiation within ecoregions, while rapid increases in richness and slowed species replacement were tied to high within-ecoregion biotic homogenization rates. Further, it was exceedingly rare for any biodiversity measured to change slowly over time; most changes were rapid. For the species assemblages studied here, changes in assemblage dissimilarity patterns were more common than changes in species richness, even though species richness has received more research attention. These results underscore the need to combine measures capturing different aspects of biodiversity (e.g., species richness and assemblage differentiation) to provide greater insight into the underlying mechanisms and pathways driving changes in biodiversity patterns.
Recent climate change strongly impacted the population dynamic of a North American insect pest species.
Boulanger, Y.; Desaint, A.; Martel, V.; Marchand, M.; Tonye, S. M.; Saint-Amant, R.; and Régnière, J.
PLOS Climate, 4(2): e0000488. February 2025.
Publisher: Public Library of Science
Paper
doi
link
bibtex
abstract
@article{boulanger_recent_2025,
title = {Recent climate change strongly impacted the population dynamic of a {North} {American} insect pest species},
volume = {4},
issn = {2767-3200},
url = {https://journals.plos.org/climate/article?id=10.1371/journal.pclm.0000488},
doi = {10.1371/journal.pclm.0000488},
abstract = {Climate change is redefining the dynamics of forest ecosystems globally, particularly through its impact on forest pest populations such as the spruce budworm (SBW, Choristoneura fumiferana [Clem.]), a major defoliator in North American boreal forests. This study investigates the shifts in the population dynamics of spruce budworm across its range in response to recent climate change. We used a process-based, temperature-dependent ecophysiological model combined with the ERA5 reanalysis to assess changes in SBW phenology, reproduction rate, winter survival and population growth rates from 1950 to 2022 across North America. Our findings demonstrate a pronounced northward expansion of suitable climate conditions for SBW, accompanied by earlier phenological events and increased reproduction rates in northern regions. Conversely, the southern parts of its range are experiencing increased winter mortality due to warmer temperatures. This study highlights the significant impact of elevated temperatures, particularly during critical developmental windows such as spring and summer, which are pivotal for spruce budworm survival and reproduction. Additionally, our results reveal that the observed shifts in pest dynamics are more strongly driven by climate change than by changes in landscape composition and structure. We estimated that suitable growth rates have shifted northward by over 68 km on average, but this shift reached more than 200 km in the easternmost portions of its range. Climate-induced shift in suitable conditions for SBW underscores the need for adaptive forest management strategies that consider the rapid ecological changes and the potential for increased forest vulnerability due to climatic and biotic stressors. This study provides vital insights that can inform adaptive management ensuring the sustainability of forest ecosystems in the face of ongoing climate change.},
language = {en},
number = {2},
urldate = {2025-07-31},
journal = {PLOS Climate},
author = {Boulanger, Yan and Desaint, Adèle and Martel, Véronique and Marchand, Maryse and Tonye, Salomon Massoda and Saint-Amant, Rémi and Régnière, Jacques},
month = feb,
year = {2025},
note = {Publisher: Public Library of Science},
keywords = {Political Boundaries},
pages = {e0000488},
}
Climate change is redefining the dynamics of forest ecosystems globally, particularly through its impact on forest pest populations such as the spruce budworm (SBW, Choristoneura fumiferana [Clem.]), a major defoliator in North American boreal forests. This study investigates the shifts in the population dynamics of spruce budworm across its range in response to recent climate change. We used a process-based, temperature-dependent ecophysiological model combined with the ERA5 reanalysis to assess changes in SBW phenology, reproduction rate, winter survival and population growth rates from 1950 to 2022 across North America. Our findings demonstrate a pronounced northward expansion of suitable climate conditions for SBW, accompanied by earlier phenological events and increased reproduction rates in northern regions. Conversely, the southern parts of its range are experiencing increased winter mortality due to warmer temperatures. This study highlights the significant impact of elevated temperatures, particularly during critical developmental windows such as spring and summer, which are pivotal for spruce budworm survival and reproduction. Additionally, our results reveal that the observed shifts in pest dynamics are more strongly driven by climate change than by changes in landscape composition and structure. We estimated that suitable growth rates have shifted northward by over 68 km on average, but this shift reached more than 200 km in the easternmost portions of its range. Climate-induced shift in suitable conditions for SBW underscores the need for adaptive forest management strategies that consider the rapid ecological changes and the potential for increased forest vulnerability due to climatic and biotic stressors. This study provides vital insights that can inform adaptive management ensuring the sustainability of forest ecosystems in the face of ongoing climate change.
Reconstructing Evapotranspiration in British Columbia Since 1850 Using Publicly Available Tree-Ring Plots and Climate Data.
Li, H.; and Rex, J.
Remote Sensing, 17(5): 930. January 2025.
Number: 5 Publisher: Multidisciplinary Digital Publishing Institute
Paper
doi
link
bibtex
abstract
@article{li_reconstructing_2025,
title = {Reconstructing {Evapotranspiration} in {British} {Columbia} {Since} 1850 {Using} {Publicly} {Available} {Tree}-{Ring} {Plots} and {Climate} {Data}},
volume = {17},
copyright = {http://creativecommons.org/licenses/by/3.0/},
issn = {2072-4292},
url = {https://www.mdpi.com/2072-4292/17/5/930},
doi = {10.3390/rs17050930},
abstract = {Evapotranspiration (ET) rates will be affected by climate change and increasing frequency of extreme heat events. To understand how forests may respond to probable future climate conditions, it may be helpful to look at the past relationship between climate and ET. This can be accomplished using satellite imagery since the 1980s, but prior to that, a different approach is required. Using a global ET dataset (1982 to 2010) with 1 km resolution, climate station information from 1850 to 2010, and 54 tree-ring plots from the International Tree-Ring Data Bank (ITRDB) database, ET reconstructions were developed for each vegetated pixel with point-by-point regressions in British Columbia. ET was estimated for the province of British Columbia in Canada from 1850 to 1981, using random forest, support vector machine, and convolutional neural network regressions. ET satellite images from 1982 to 2010 formed our dataset to train models for each vegetated pixel. The random forest regression outperformed the other approaches with lower errors and better robustness (adjusted R2 value = 0.69; root mean square error = 10.72 mm/month). Modeled findings indicate that ET rates are generally increasing in British Columbia (ET = 0.0064 × Year + 52.339), but there were regional effects on local ET, as only the Humid Temperate ecodomain had strong correlations of ET with mean summer temperature (r = 0.257, p {\textless} 0.01) and mean summer precipitation (r = −0.208, p {\textless} 0.05). These historical estimates provide an opportunity to observe spatiotemporal variation in ET across British Columbia and elsewhere.},
language = {en},
number = {5},
urldate = {2025-07-31},
journal = {Remote Sensing},
author = {Li, Hang and Rex, John},
month = jan,
year = {2025},
note = {Number: 5
Publisher: Multidisciplinary Digital Publishing Institute},
keywords = {NALCMS},
pages = {930},
}
Evapotranspiration (ET) rates will be affected by climate change and increasing frequency of extreme heat events. To understand how forests may respond to probable future climate conditions, it may be helpful to look at the past relationship between climate and ET. This can be accomplished using satellite imagery since the 1980s, but prior to that, a different approach is required. Using a global ET dataset (1982 to 2010) with 1 km resolution, climate station information from 1850 to 2010, and 54 tree-ring plots from the International Tree-Ring Data Bank (ITRDB) database, ET reconstructions were developed for each vegetated pixel with point-by-point regressions in British Columbia. ET was estimated for the province of British Columbia in Canada from 1850 to 1981, using random forest, support vector machine, and convolutional neural network regressions. ET satellite images from 1982 to 2010 formed our dataset to train models for each vegetated pixel. The random forest regression outperformed the other approaches with lower errors and better robustness (adjusted R2 value = 0.69; root mean square error = 10.72 mm/month). Modeled findings indicate that ET rates are generally increasing in British Columbia (ET = 0.0064 × Year + 52.339), but there were regional effects on local ET, as only the Humid Temperate ecodomain had strong correlations of ET with mean summer temperature (r = 0.257, p \textless 0.01) and mean summer precipitation (r = −0.208, p \textless 0.05). These historical estimates provide an opportunity to observe spatiotemporal variation in ET across British Columbia and elsewhere.
Restoring forest cover at diverse sites across Canada can balance synergies and trade-offs.
Drever, C. R.; Long, A. M.; Cook-Patton, S. C.; Celanowicz, E.; Fargione, J.; Fisher, K.; Hounsell, S.; Kurz, W. A.; Mitchell, M.; Robinson, N.; Pither, R.; Schuster, R.; Deziel, V.; and Xu, Z.
One Earth,101177. January 2025.
Paper
doi
link
bibtex
abstract
@article{drever_restoring_2025,
title = {Restoring forest cover at diverse sites across {Canada} can balance synergies and trade-offs},
issn = {2590-3322},
url = {https://www.sciencedirect.com/science/article/pii/S259033222500003X},
doi = {10.1016/j.oneear.2025.101177},
abstract = {Swift action to restore forests is critical for mitigating climate change and preserving biodiversity. Canada has an ambitious program to plant two billion trees to help exceed the country’s emissions targets while restoring forest habitat and providing social and economic benefits. We conducted a systematic analysis of where new tree cover can maximally achieve these benefits while minimizing implementation costs. Accounting for critiques of global restoration mapping that include the overestimation of mitigation potential and inadequate biodiversity and social safeguards, we find that 19.1 Mha are available, which is much more than the approximately 1.2 Mha needed to plant two billion trees. Optimization scenarios for 1.2 Mha revealed synergies and trade-offs. Scenarios prioritizing low costs, accessibility, and high growth are concentrated in temperate and coastal areas, overlapping partly with biodiversity scenarios, but with trade-offs of higher costs. A diverse portfolio of regionally restored sites, each tailored for specific attributes, is most likely to deliver multiple benefits at the pace demanded by the current crises.},
urldate = {2025-01-20},
journal = {One Earth},
author = {Drever, C. Ronnie and Long, Alison M. and Cook-Patton, Susan C. and Celanowicz, Elizabeth and Fargione, Joe and Fisher, Kathryn and Hounsell, Steve and Kurz, Werner A. and Mitchell, Matthew and Robinson, Nathaniel and Pither, Richard and Schuster, Richard and Deziel, Val and Xu, Zach},
month = jan,
year = {2025},
keywords = {NALCMS},
pages = {101177},
}
Swift action to restore forests is critical for mitigating climate change and preserving biodiversity. Canada has an ambitious program to plant two billion trees to help exceed the country’s emissions targets while restoring forest habitat and providing social and economic benefits. We conducted a systematic analysis of where new tree cover can maximally achieve these benefits while minimizing implementation costs. Accounting for critiques of global restoration mapping that include the overestimation of mitigation potential and inadequate biodiversity and social safeguards, we find that 19.1 Mha are available, which is much more than the approximately 1.2 Mha needed to plant two billion trees. Optimization scenarios for 1.2 Mha revealed synergies and trade-offs. Scenarios prioritizing low costs, accessibility, and high growth are concentrated in temperate and coastal areas, overlapping partly with biodiversity scenarios, but with trade-offs of higher costs. A diverse portfolio of regionally restored sites, each tailored for specific attributes, is most likely to deliver multiple benefits at the pace demanded by the current crises.
Routine monitoring in the Maritime Provinces, Canada reveals novel records and range extensions for introduced red algal (Rhodophyta) species.
Saunders, G. W.; Cassidy, M. M.; Dankworth, M.; Reeves, O.; Smith, A.; Taylor, K. E.; Moore, T. E.; and Brooks, C. M.
Botany, 103: 1–14. January 2025.
Publisher: NRC Research Press
Paper
doi
link
bibtex
abstract
@article{saunders_routine_2025,
title = {Routine monitoring in the {Maritime} {Provinces}, {Canada} reveals novel records and range extensions for introduced red algal ({Rhodophyta}) species},
volume = {103},
issn = {1916-2790},
url = {https://cdnsciencepub.com/doi/full/10.1139/cjb-2025-0029},
doi = {10.1139/cjb-2025-0029},
abstract = {The senior author has been studying seaweed diversity in the Maritime Provinces over the past 30 years. In recent years, ongoing baseline surveys have revealed novel species and range extensions into these coastal waters. The gradual creep of Bonnemaisonia hamifera Hariot and the first records for Antithamnion cf. sparsum Tokida, Dasysiphonia japonica (Yendo) H.-S.Kim, and Lomentaria orcadensis (Harvey) Collins in the Bay of Fundy are provided. Additionally, the first Canadian records for Bangia sp. 1Asia, Callithamnion debile Harvey, and Melanothamnus japonicus (Harvey) Díaz-Tapia \& Maggs are presented. Further, the overlooked species Bangia sp. 4BAN was encountered for the third time in Atlantic Canada joining two previous records in the Bay of Fundy from 2010 (Nova Scotia side) and 2020 (New Brunswick side). Similarly, the presence of Melanothamnus cf. eastwoodiae (Setchell \& N.L.Gardner) Díaz-Tapia \& Maggs is confirmed in Atlantic Canada having been first encountered in 2022. Finally, Dasya elegans (G.Martens) C.Agardh (previously known as Dasya baillouviana (S.G.Gmelin) Montagne) is now recognized as an introduction to the Gulf of Saint Lawrence ca. 1960 and to the Bay of Fundy presumably at some point in the past few years.},
urldate = {2025-07-31},
journal = {Botany},
author = {Saunders, Gary W. and Cassidy, Margaret M. and Dankworth, Marie and Reeves, Olivia and Smith, Andrew and Taylor, Keelie E. and Moore, Tanya E. and Brooks, Cody M.},
month = jan,
year = {2025},
note = {Publisher: NRC Research Press},
keywords = {Political Boundaries},
pages = {1--14},
}
The senior author has been studying seaweed diversity in the Maritime Provinces over the past 30 years. In recent years, ongoing baseline surveys have revealed novel species and range extensions into these coastal waters. The gradual creep of Bonnemaisonia hamifera Hariot and the first records for Antithamnion cf. sparsum Tokida, Dasysiphonia japonica (Yendo) H.-S.Kim, and Lomentaria orcadensis (Harvey) Collins in the Bay of Fundy are provided. Additionally, the first Canadian records for Bangia sp. 1Asia, Callithamnion debile Harvey, and Melanothamnus japonicus (Harvey) Díaz-Tapia & Maggs are presented. Further, the overlooked species Bangia sp. 4BAN was encountered for the third time in Atlantic Canada joining two previous records in the Bay of Fundy from 2010 (Nova Scotia side) and 2020 (New Brunswick side). Similarly, the presence of Melanothamnus cf. eastwoodiae (Setchell & N.L.Gardner) Díaz-Tapia & Maggs is confirmed in Atlantic Canada having been first encountered in 2022. Finally, Dasya elegans (G.Martens) C.Agardh (previously known as Dasya baillouviana (S.G.Gmelin) Montagne) is now recognized as an introduction to the Gulf of Saint Lawrence ca. 1960 and to the Bay of Fundy presumably at some point in the past few years.
Science Communication of Coastal Parks Conservation Value Index – CVI.
Liu, H.
Ph.D. Thesis, April 2025.
Paper
link
bibtex
abstract
@phdthesis{liu_science_2025,
title = {Science {Communication} of {Coastal} {Parks} {Conservation} {Value} {Index} – {CVI}},
url = {https://hdl.handle.net/10161/32219},
abstract = {As climate stressors and environmental degradation intensify, coastal landscapes along the US shoreline require urgent conservation and strategic resource allocation. The Conservation Value Index (CVI), a geospatial dataset assessing coastal resilience across 88 US coastal national parks, is designed to inform conservation priorities. However, its complexity poses challenges for effective use by the client, the National Parks Conservation Association (NPCA), and other stakeholders. This project translates CVI data into science communication toolkits, enabling users to explore, interpret, and apply insights for high-level policy discussions and coastal resilience advocacy. This paper also examines the intersection of scientific data and communication, highlighting the role of visualization, narrative framing, and data quality in making complex datasets actionable.},
language = {en\_US},
urldate = {2025-07-31},
author = {Liu, Hope},
month = apr,
year = {2025},
keywords = {Blue Carbon},
}
As climate stressors and environmental degradation intensify, coastal landscapes along the US shoreline require urgent conservation and strategic resource allocation. The Conservation Value Index (CVI), a geospatial dataset assessing coastal resilience across 88 US coastal national parks, is designed to inform conservation priorities. However, its complexity poses challenges for effective use by the client, the National Parks Conservation Association (NPCA), and other stakeholders. This project translates CVI data into science communication toolkits, enabling users to explore, interpret, and apply insights for high-level policy discussions and coastal resilience advocacy. This paper also examines the intersection of scientific data and communication, highlighting the role of visualization, narrative framing, and data quality in making complex datasets actionable.
Shallow Waters, Deep Divergence: Epigean Amphipods Utilize Shallow Hyporheic Habitats in the Western Allegheny Plateau.
Cannizzaro, A. G.; and Berg, D. J.
Journal of Zoological Systematics and Evolutionary Research, 2025(1): 9912359. 2025.
_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1155/jzs/9912359
Paper
doi
link
bibtex
abstract
@article{cannizzaro_shallow_2025,
title = {Shallow {Waters}, {Deep} {Divergence}: {Epigean} {Amphipods} {Utilize} {Shallow} {Hyporheic} {Habitats} in the {Western} {Allegheny} {Plateau}},
volume = {2025},
copyright = {Copyright © 2025 Andrew G. Cannizzaro and David J. Berg. Journal of Zoological Systematics and Evolutionary Research published by John Wiley \& Sons Ltd.},
issn = {1439-0469},
shorttitle = {Shallow {Waters}, {Deep} {Divergence}},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1155/jzs/9912359},
doi = {10.1155/jzs/9912359},
abstract = {Two new species of freshwater amphipods, Crangonyx ipnoecetes n. sp. and Crangonyx furnaricolus n. sp., are described from intermittent bodies of water in Vinton Furnace State Forest (VFSF), Vinton County, Ohio, USA. The descriptions of these species are based on both morphological and molecular analyses, which identify them as only distantly related despite their syntopic occurrences. These species are estimated to have last shared a common ancestor during the Late Cretaceous or early Paleogene (73–50 Ma) and to have diverged from their closest congeners towards the end of this period. Given the region occupied by these species, it is likely that their distributions were influenced by both preglacial habitats, such as the Teays River, and postglacial structures, such as Lake Tight. Our results suggest that significant gaps in knowledge still exist for the amphipod fauna of the Western Allegheny Plateau (eastern USA), with implications for taxonomy and conservation of Crangonyx as well as the natural history of the plateau and surrounding region. Furthermore, the description of these species provides additional evidence for the utilization of shallow hyporheic habitats by epigean Crangonyx spp. These habitats may play significant roles not only for these species, but for other epigean taxa as well.},
language = {en},
number = {1},
urldate = {2026-05-21},
journal = {Journal of Zoological Systematics and Evolutionary Research},
author = {Cannizzaro, Andrew G. and Berg, David J.},
year = {2025},
note = {\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1155/jzs/9912359},
keywords = {Terrestrial Ecoregions (Wiken 2011)},
pages = {9912359},
}
Two new species of freshwater amphipods, Crangonyx ipnoecetes n. sp. and Crangonyx furnaricolus n. sp., are described from intermittent bodies of water in Vinton Furnace State Forest (VFSF), Vinton County, Ohio, USA. The descriptions of these species are based on both morphological and molecular analyses, which identify them as only distantly related despite their syntopic occurrences. These species are estimated to have last shared a common ancestor during the Late Cretaceous or early Paleogene (73–50 Ma) and to have diverged from their closest congeners towards the end of this period. Given the region occupied by these species, it is likely that their distributions were influenced by both preglacial habitats, such as the Teays River, and postglacial structures, such as Lake Tight. Our results suggest that significant gaps in knowledge still exist for the amphipod fauna of the Western Allegheny Plateau (eastern USA), with implications for taxonomy and conservation of Crangonyx as well as the natural history of the plateau and surrounding region. Furthermore, the description of these species provides additional evidence for the utilization of shallow hyporheic habitats by epigean Crangonyx spp. These habitats may play significant roles not only for these species, but for other epigean taxa as well.
Simulated biodiversity hotspots from traditional ecological knowledge and Western metrics do not always overlap.
Dahlin, K. J.; Van Cleemput, E.; Adhikari, S.; Castillioni, K.; and Strickland, L. R.
Communications Earth & Environment, 6(1): 350. May 2025.
Publisher: Nature Publishing Group
Paper
doi
link
bibtex
abstract
@article{dahlin_simulated_2025,
title = {Simulated biodiversity hotspots from traditional ecological knowledge and {Western} metrics do not always overlap},
volume = {6},
copyright = {2025 The Author(s)},
issn = {2662-4435},
url = {https://www.nature.com/articles/s43247-025-02309-x},
doi = {10.1038/s43247-025-02309-x},
abstract = {As global change reshapes ecosystems, establishing conservation priorities is crucial for managing threatened areas with limited resources. Biodiversity hotspots, often defined by high endemism, are key in conservation management. However, these may not capture other dimensions of biodiversity, including functional and phylogenetic diversity or knowledge from Indigenous communities. Here, we demonstrate that different metrics identify different hotspots using simulated plant communities as a case study. We compiled existing data on 318 plant species, including functional trait data and Traditional Ecological Knowledge on Indigenous plant names and uses. We simulated 100,000 communities by randomly assembling species that naturally co-occur within an ecoregion, and calculated taxonomic, phylogenetic, functional, and Traditional Ecological Knowledge-based biodiversity metrics. The metrics cluster into two groups based on shared hotspot identification, with phylogenetic and functional metrics distributed between groups, and Traditional Ecological Knowledge-based metrics aligning with some metrics, but not all. This suggests that integrating Traditional Ecological Knowledge into conservation planning can expand the scope of biodiversity assessments and help recognize places of cultural significance that might otherwise be overlooked.},
language = {en},
number = {1},
urldate = {2025-07-31},
journal = {Communications Earth \& Environment},
author = {Dahlin, Kyle J.-M. and Van Cleemput, Elisa and Adhikari, Subodh and Castillioni, Karen and Strickland, Lynette R.},
month = may,
year = {2025},
note = {Publisher: Nature Publishing Group},
keywords = {Terrestrial Ecoregions (CEC 1997)},
pages = {350},
}
As global change reshapes ecosystems, establishing conservation priorities is crucial for managing threatened areas with limited resources. Biodiversity hotspots, often defined by high endemism, are key in conservation management. However, these may not capture other dimensions of biodiversity, including functional and phylogenetic diversity or knowledge from Indigenous communities. Here, we demonstrate that different metrics identify different hotspots using simulated plant communities as a case study. We compiled existing data on 318 plant species, including functional trait data and Traditional Ecological Knowledge on Indigenous plant names and uses. We simulated 100,000 communities by randomly assembling species that naturally co-occur within an ecoregion, and calculated taxonomic, phylogenetic, functional, and Traditional Ecological Knowledge-based biodiversity metrics. The metrics cluster into two groups based on shared hotspot identification, with phylogenetic and functional metrics distributed between groups, and Traditional Ecological Knowledge-based metrics aligning with some metrics, but not all. This suggests that integrating Traditional Ecological Knowledge into conservation planning can expand the scope of biodiversity assessments and help recognize places of cultural significance that might otherwise be overlooked.
Song of the Waters.
Casini, B.
January 2025.
Paper
link
bibtex
abstract
@misc{casini_song_2025,
title = {Song of the {Waters}},
url = {https://songofthewaters.com/},
abstract = {A regenerative odyssey along the great loop of north America Cultivating peace on the waterways of North AmericaBridging communities though exchanging stories and songs.Raising awareness of ourrelationship to water. WELCOME TO THE VOYAGE Follow the Song of the Waters on a musical adventure of over 6000 miles around the Great Loop of North America Knoxville},
language = {es-CO},
urldate = {2025-10-07},
author = {Casini, Biko},
month = jan,
year = {2025},
keywords = {Lakes \& Rivers},
}
A regenerative odyssey along the great loop of north America Cultivating peace on the waterways of North AmericaBridging communities though exchanging stories and songs.Raising awareness of ourrelationship to water. WELCOME TO THE VOYAGE Follow the Song of the Waters on a musical adventure of over 6000 miles around the Great Loop of North America Knoxville
Space Use, Habitat Selection, and Flight Behavior of Eagles Across Northwestern North America.
Lewis, S. B.
Ph.D. Thesis, University of Montana, Missoula, MT, December 2025.
Paper
link
bibtex
abstract
@phdthesis{lewis_space_2025,
address = {Missoula, MT},
title = {Space {Use}, {Habitat} {Selection}, and {Flight} {Behavior} of {Eagles} {Across} {Northwestern} {North} {America}},
url = {https://scholarworks.umt.edu/etd/12583/},
abstract = {Explore millions of resources from scholarly journals, books, newspapers, videos and more, on the ProQuest Platform.},
language = {en},
urldate = {2026-01-21},
school = {University of Montana},
author = {Lewis, Stephen Bernard},
month = dec,
year = {2025},
keywords = {Landfills, NALCMS},
}
Explore millions of resources from scholarly journals, books, newspapers, videos and more, on the ProQuest Platform.
Spatial Equilibrium and the Regional Effects of Trade Liberalization: Evidence from Mexico.
Duran Vanegas, J.
Economía, 24(1). February 2025.
Paper
doi
link
bibtex
abstract
@article{duran_vanegas_spatial_2025,
title = {Spatial {Equilibrium} and the {Regional} {Effects} of {Trade} {Liberalization}: {Evidence} from {Mexico}},
volume = {24},
copyright = {https://creativecommons.org/licenses/by/4.0},
issn = {1533-6239},
shorttitle = {Spatial {Equilibrium} and the {Regional} {Effects} of {Trade} {Liberalization}},
url = {https://account.economia.lse.ac.uk/index.php/lse-j-elaceaj/article/view/421},
doi = {10.31389/eco.421},
abstract = {While there is increasing evidence on the effects of trade liberalization on local labor markets, regional variation in cost and quality of living remains essential to understanding the broader welfare impacts of trade policy. This paper examines how trade liberalization influenced wage disparities between college-educated and noncollege-educated workers, as well as urban amenities, across Mexican municipalities from 1990 to 2010, during the implementation of the 1994 North American Free Trade Agreement (NAFTA). Using a detailed database that estimates each municipality’s exposure to international trade based on the lowest-cost transport route to the nearest US truck port, I find that areas more exposed to trade experienced reductions in wage gaps between college and non-college workers. However, these reductions were more pronounced in nominal wages than in real wages (adjusted for housing costs). Additionally, more exposed municipalities saw smaller improvements in urban amenities. Consequently, while low-skill workers benefited from higher nominal wages, these gains were partly offset by rising living costs and lower urban amenities. These findings highlight the importance of housing affordability and public goods provision as policy tools to address the uneven effects of trade reforms.
JEL Classification Codes: F1; J31; R23; R31; O15},
number = {1},
urldate = {2025-07-31},
journal = {Economía},
author = {Duran Vanegas, Juan},
month = feb,
year = {2025},
keywords = {Major Roads},
}
While there is increasing evidence on the effects of trade liberalization on local labor markets, regional variation in cost and quality of living remains essential to understanding the broader welfare impacts of trade policy. This paper examines how trade liberalization influenced wage disparities between college-educated and noncollege-educated workers, as well as urban amenities, across Mexican municipalities from 1990 to 2010, during the implementation of the 1994 North American Free Trade Agreement (NAFTA). Using a detailed database that estimates each municipality’s exposure to international trade based on the lowest-cost transport route to the nearest US truck port, I find that areas more exposed to trade experienced reductions in wage gaps between college and non-college workers. However, these reductions were more pronounced in nominal wages than in real wages (adjusted for housing costs). Additionally, more exposed municipalities saw smaller improvements in urban amenities. Consequently, while low-skill workers benefited from higher nominal wages, these gains were partly offset by rising living costs and lower urban amenities. These findings highlight the importance of housing affordability and public goods provision as policy tools to address the uneven effects of trade reforms. JEL Classification Codes: F1; J31; R23; R31; O15
Spatiotemporal Dynamics and Climate-Driven Risk of Compound Flood Events in the Great Lakes Basin.
Wang, Y.
Ph.D. Thesis, The University of Western Ontario, August 2025.
Paper
link
bibtex
abstract
@phdthesis{wang_spatiotemporal_2025,
title = {Spatiotemporal {Dynamics} and {Climate}-{Driven} {Risk} of {Compound} {Flood} {Events} in the {Great} {Lakes} {Basin}},
url = {https://hdl.handle.net/20.500.14721/38586},
abstract = {Floods are among the most frequent and economically significant natural hazards affecting communities worldwide. Understanding their mechanisms, spatiotemporal patterns and projected changes is crucial to develop effective strategies for risk mitigation. This study analyzes three types of climate-driven flood events in the Great Lakes basin, driven by Rain-on-Snow (ROS), Saturation Excess flooding (SEF), and Successive Rainfall (SR), in the historical period (1985-2014) and the future period (2071-2100). Assessments are based on WRF-Hydro simulations forced by RDRS observations and eight downscaled and bias-adjusted General Circulation Models (GCMs) under SSP5-8.5 emission scenario. Based on the model outputs, the characteristics of extreme events including intensity, frequency, and seasonality, are evaluated and their contributions to the heavy runoff are investigated. Furthermore, flood risk is characterized by integrating the intensity and frequency of events with exposure and vulnerability for the Great Lakes basin. Overall, snow-related events are projected to decrease, while rain-related events are expected to increase. Single rainfall extreme events are projected to dominate future surface runoff generation, while single snowmelt events are more sensitive to climate change in the northern sub-basin. The contribution of ROS is less pronounced and is expected to decrease, whereas the SEF events show a higher contribution with an increasing impact in the future period. In addition, flood temporal and spatial correlation analyses show that future floods are likely to occur earlier, with increasing spring floods across the region. The spatial correlation between floods in the Lake Erie and Lake Michigan Basins is stronger and projected to increase, suggesting greater influence from large-scale atmospheric drivers. The seasonal shifts underscore the need for adaptive, season-specific flood management policies in the Great Lakes region. These results emphasize that the study of compound extreme events should move beyond individual event characteristics and place greater emphasis on hydroclimatic interactions and their associated impacts.},
language = {en},
urldate = {2026-01-21},
school = {The University of Western Ontario},
author = {Wang, Yuxuan},
month = aug,
year = {2025},
keywords = {NALCMS},
}
Floods are among the most frequent and economically significant natural hazards affecting communities worldwide. Understanding their mechanisms, spatiotemporal patterns and projected changes is crucial to develop effective strategies for risk mitigation. This study analyzes three types of climate-driven flood events in the Great Lakes basin, driven by Rain-on-Snow (ROS), Saturation Excess flooding (SEF), and Successive Rainfall (SR), in the historical period (1985-2014) and the future period (2071-2100). Assessments are based on WRF-Hydro simulations forced by RDRS observations and eight downscaled and bias-adjusted General Circulation Models (GCMs) under SSP5-8.5 emission scenario. Based on the model outputs, the characteristics of extreme events including intensity, frequency, and seasonality, are evaluated and their contributions to the heavy runoff are investigated. Furthermore, flood risk is characterized by integrating the intensity and frequency of events with exposure and vulnerability for the Great Lakes basin. Overall, snow-related events are projected to decrease, while rain-related events are expected to increase. Single rainfall extreme events are projected to dominate future surface runoff generation, while single snowmelt events are more sensitive to climate change in the northern sub-basin. The contribution of ROS is less pronounced and is expected to decrease, whereas the SEF events show a higher contribution with an increasing impact in the future period. In addition, flood temporal and spatial correlation analyses show that future floods are likely to occur earlier, with increasing spring floods across the region. The spatial correlation between floods in the Lake Erie and Lake Michigan Basins is stronger and projected to increase, suggesting greater influence from large-scale atmospheric drivers. The seasonal shifts underscore the need for adaptive, season-specific flood management policies in the Great Lakes region. These results emphasize that the study of compound extreme events should move beyond individual event characteristics and place greater emphasis on hydroclimatic interactions and their associated impacts.
Subspecies Delineation, Habitat Ecology, and Population Demography of Sharp-Tailed Grouse in Southcentral Wyoming.
Lautenbach, J. D.
Ph.D. Thesis, University of Wyoming, April 2025.
Paper
link
bibtex
abstract
@phdthesis{lautenbach_subspecies_2025,
type = {Doctor of {Philosophy}},
title = {Subspecies {Delineation}, {Habitat} {Ecology}, and {Population} {Demography} of {Sharp}-{Tailed} {Grouse} in {Southcentral} {Wyoming}},
url = {https://www.proquest.com/openview/68bd2e3c81a398a104fba4fe549d0913/1?pq-origsite=gscholar&cbl=18750&diss=y},
abstract = {Explore millions of resources from scholarly journals, books, newspapers, videos and more, on the ProQuest Platform.},
language = {en},
urldate = {2026-01-21},
school = {University of Wyoming},
author = {Lautenbach, Jonathan D.},
month = apr,
year = {2025},
}
Explore millions of resources from scholarly journals, books, newspapers, videos and more, on the ProQuest Platform.
Technical note: How many models do we need to simulate hydrologic processes across large geographical domains?.
Knoben, W. J. M.; Raman, A.; Gründemann, G. J.; Kumar, M.; Pietroniro, A.; Shen, C.; Song, Y.; Thébault, C.; van Werkhoven, K.; Wood, A. W.; and Clark, M. P.
Hydrology and Earth System Sciences, 29(11): 2361–2375. June 2025.
Publisher: Copernicus GmbH
Paper
doi
link
bibtex
abstract
@article{knoben_technical_2025,
title = {Technical note: {How} many models do we need to simulate hydrologic processes across large geographical domains?},
volume = {29},
issn = {1027-5606},
shorttitle = {Technical note},
url = {https://hess.copernicus.org/articles/29/2361/2025/},
doi = {10.5194/hess-29-2361-2025},
abstract = {Robust large-domain predictions of water availability and threats require models that work well across different basins in the model domain. It is currently common to express a model's accuracy through aggregated efficiency scores such as the Nash–Sutcliffe efficiency and Kling–Gupta efficiency (KGE), and these scores often form the basis to select among competing models. However, recent work has shown that such scores are subject to considerable sampling uncertainty: the exact selection of time steps used to calculate the scores can have large impacts on the scores obtained. Here we explicitly account for this sampling uncertainty to determine the number of models that are needed to simulate hydrologic processes across large spatial domains. Using a selection of 36 conceptual models and 559 basins, our results show that model equifinality, the fact that very different models can produce simulations with very similar accuracy, makes it very difficult to unambiguously select one model over another. If models were selected based on their validation KGE scores alone, almost every model would be selected as the best model in at least some basins. When sampling uncertainty is accounted for, this number drops to 4 models being needed to cover 95 \% of investigated basins and 10 models being needed to cover all basins. We obtain similar conclusions for an objective function focused on low flows. These results suggest that, under the conditions typical of many current modelling studies, there is limited evidence that using a wide variety of different models leads to appreciable differences in simulation accuracy compared to using a smaller number of carefully chosen models.},
language = {English},
number = {11},
urldate = {2025-07-31},
journal = {Hydrology and Earth System Sciences},
author = {Knoben, Wouter J. M. and Raman, Ashwin and Gründemann, Gaby J. and Kumar, Mukesh and Pietroniro, Alain and Shen, Chaopeng and Song, Yalan and Thébault, Cyril and van Werkhoven, Katie and Wood, Andrew W. and Clark, Martyn P.},
month = jun,
year = {2025},
note = {Publisher: Copernicus GmbH},
keywords = {Political Boundaries},
pages = {2361--2375},
}
Robust large-domain predictions of water availability and threats require models that work well across different basins in the model domain. It is currently common to express a model's accuracy through aggregated efficiency scores such as the Nash–Sutcliffe efficiency and Kling–Gupta efficiency (KGE), and these scores often form the basis to select among competing models. However, recent work has shown that such scores are subject to considerable sampling uncertainty: the exact selection of time steps used to calculate the scores can have large impacts on the scores obtained. Here we explicitly account for this sampling uncertainty to determine the number of models that are needed to simulate hydrologic processes across large spatial domains. Using a selection of 36 conceptual models and 559 basins, our results show that model equifinality, the fact that very different models can produce simulations with very similar accuracy, makes it very difficult to unambiguously select one model over another. If models were selected based on their validation KGE scores alone, almost every model would be selected as the best model in at least some basins. When sampling uncertainty is accounted for, this number drops to 4 models being needed to cover 95 % of investigated basins and 10 models being needed to cover all basins. We obtain similar conclusions for an objective function focused on low flows. These results suggest that, under the conditions typical of many current modelling studies, there is limited evidence that using a wide variety of different models leads to appreciable differences in simulation accuracy compared to using a smaller number of carefully chosen models.
The Acadian Flycatcher is a habitat specialist, and it shows.
Regimbal, N. L.; and Riskin, S. H.
Avian Conservation and Ecology, 20(1). June 2025.
Publisher: The Resilience Alliance
Paper
doi
link
bibtex
abstract
@article{regimbal_acadian_2025,
title = {The {Acadian} {Flycatcher} is a habitat specialist, and it shows},
volume = {20},
copyright = {© 2025 by the author(s)},
issn = {1712-6568},
url = {https://ace-eco.org/vol20/iss1/art25/},
doi = {10.5751/ACE-02892-200125},
abstract = {Declines in North American bird populations are being driven by a suite of threats, and it can be difficult to disentangle drivers of decline for any single species, especially those with large ranges or that experience different threats in different parts of their range. Community science platforms offer new and rapidly expanding datasets to observe species across space and time. Here, we use community science databases to analyze the habitat characteristics of the Acadian Flycatcher (Empidonax virescens), a Neotropical migrant songbird that is threatened across portions of its range. The Acadian Flycatcher is often described as a habitat specialist, though often only where it is considered at risk. We use Acadian Flycatcher observations sourced from one of the biggest community science platforms, eBird, and assess habitat land cover and co-occurrence of species associated with habitat quality for each of these observations. We use publicly available land use data to assess habitat cover and assess co-occurring species using observations sourced from multiple community science platforms. Our results show the Acadian Flycatcher is largely observed in high-quality landscapes of preferred habitat (31\% deciduous forest and 11\% wetland cover) and without invasive vegetation more than bird observation sites where the Acadian Flycatcher was not detected (25\% more likely to be near preferred trees, 77\% less likely to be near invasive vegetation, p {\textless} 0.001). Our results also show an overrepresentation of urban land cover, potentially highlighting a bias in some community science data due to observer behavior. Overall, our results support land management strategies that maintain patches of native land cover and manage invasive species and highlight how community science databases can provide important information about species’ presence over space and time.},
language = {en},
number = {1},
urldate = {2025-07-31},
journal = {Avian Conservation and Ecology},
author = {Regimbal, Nicole L. and Riskin, Shelby H.},
month = jun,
year = {2025},
note = {Publisher: The Resilience Alliance},
keywords = {NALCMS},
}
Declines in North American bird populations are being driven by a suite of threats, and it can be difficult to disentangle drivers of decline for any single species, especially those with large ranges or that experience different threats in different parts of their range. Community science platforms offer new and rapidly expanding datasets to observe species across space and time. Here, we use community science databases to analyze the habitat characteristics of the Acadian Flycatcher (Empidonax virescens), a Neotropical migrant songbird that is threatened across portions of its range. The Acadian Flycatcher is often described as a habitat specialist, though often only where it is considered at risk. We use Acadian Flycatcher observations sourced from one of the biggest community science platforms, eBird, and assess habitat land cover and co-occurrence of species associated with habitat quality for each of these observations. We use publicly available land use data to assess habitat cover and assess co-occurring species using observations sourced from multiple community science platforms. Our results show the Acadian Flycatcher is largely observed in high-quality landscapes of preferred habitat (31% deciduous forest and 11% wetland cover) and without invasive vegetation more than bird observation sites where the Acadian Flycatcher was not detected (25% more likely to be near preferred trees, 77% less likely to be near invasive vegetation, p \textless 0.001). Our results also show an overrepresentation of urban land cover, potentially highlighting a bias in some community science data due to observer behavior. Overall, our results support land management strategies that maintain patches of native land cover and manage invasive species and highlight how community science databases can provide important information about species’ presence over space and time.
The Current Status and Distribution of the Least Tern Breeding in the Gulf of California, México.
Ryan, T. P.; Palacios, E.; Amador, E.; Lopez, M. C.; Dolinski, L.; Fonseca, J.; Alvarez, A. H.; García, G. N. L.; Reyes, F. J. M.; Parra, B. R. D. C. M.; Espinoza, M. M.; Serrato, L. O.; Cruz, Á. Y. S.; and Pintos, G. T.
Waterbirds, 47(4): 1–17. March 2025.
Publisher: The Waterbird Society
Paper
doi
link
bibtex
abstract
@article{ryan_current_2025,
title = {The {Current} {Status} and {Distribution} of the {Least} {Tern} {Breeding} in the {Gulf} of {California}, {México}},
volume = {47},
issn = {1524-4695, 1938-5390},
url = {https://bioone.org/journals/waterbirds/volume-47/issue-4/063.047.0405/The-Current-Status-and-Distribution-of-the-Least-Tern-Breeding/10.1675/063.047.0405.full},
doi = {10.1675/063.047.0405},
abstract = {The California Least Tern (Sternula antillarum browni) population is declining in California, U.S.A., but little is known about the Least Tern population breeding in the Gulf of California, México. Because of this decline in California, it is important to determine current distribution, population trends, and movements in the nearby Gulf of California. Emigration from coastal California to the Gulf of California is one possible reason for the decline. We analyzed Least Tern colony counts to provide an overview of its current breeding distribution, abundance trends, and connectivity in the Gulf of California. We documented 84 nesting sites, including 61 extant, 10 historic, and 13 sites of unknown status. We estimated the Gulf of California population to be 2,400–3,500 adults, breeding in the 61 extant colonies. Colonies here were small, averaging 49 adults/colony. Most colonies occurred in the Upper Gulf, Gulf Entrance, and on the southern end of the Baja California Peninsula. We estimated a significant negative trend for the population of the Gulf of California. We found no marked individuals in the Gulf of California nesting colonies banded in California or the Baja California peninsula, indicating no regular movement away from coastal California.},
number = {4},
urldate = {2025-07-31},
journal = {Waterbirds},
author = {Ryan, Thomas P. and Palacios, Eduardo and Amador, Edgar and Lopez, Medardo Cruz and Dolinski, Lauren and Fonseca, Juanita and Alvarez, Adriana Hernández and García, Germán N. Leyva and Reyes, Francisco Jaime Martínez and Parra, Brunilda Rebeca Del Carmen Menares and Espinoza, Manuel Muñoz and Serrato, Liliana Ortiz and Cruz, Ángeles Yazmín Sánchez and Pintos, Graciela Tiburcio},
month = mar,
year = {2025},
note = {Publisher: The Waterbird Society},
keywords = {Terrestrial Ecoregions (Wiken 2011)},
pages = {1--17},
}
The California Least Tern (Sternula antillarum browni) population is declining in California, U.S.A., but little is known about the Least Tern population breeding in the Gulf of California, México. Because of this decline in California, it is important to determine current distribution, population trends, and movements in the nearby Gulf of California. Emigration from coastal California to the Gulf of California is one possible reason for the decline. We analyzed Least Tern colony counts to provide an overview of its current breeding distribution, abundance trends, and connectivity in the Gulf of California. We documented 84 nesting sites, including 61 extant, 10 historic, and 13 sites of unknown status. We estimated the Gulf of California population to be 2,400–3,500 adults, breeding in the 61 extant colonies. Colonies here were small, averaging 49 adults/colony. Most colonies occurred in the Upper Gulf, Gulf Entrance, and on the southern end of the Baja California Peninsula. We estimated a significant negative trend for the population of the Gulf of California. We found no marked individuals in the Gulf of California nesting colonies banded in California or the Baja California peninsula, indicating no regular movement away from coastal California.
The Maya Forest Waterlands: Shared Conservation, Entangled Politics, and Fluid Borders.
Laako, H.; and Kauffer, E.
Routledge, London, February 2025.
doi
link
bibtex
abstract
@book{laako_maya_2025,
address = {London},
title = {The {Maya} {Forest} {Waterlands}: {Shared} {Conservation}, {Entangled} {Politics}, and {Fluid} {Borders}},
isbn = {978-1-003-42905-0},
shorttitle = {The {Maya} {Forest} {Waterlands}},
abstract = {This book examines the entanglements and blurred edges of nature conservation and geopolitical relations in the borderlands of the trinational Maya Forest.
Maya Forest is an umbrella term for transboundary conservation developed by scientists and conservationists in the 1990s to protect the threatened rainforest in the borderlands of Mexico, Belize, and Guatemala. Currently, the Maya Forest is a biodiversity hotspot composed of a network of protected areas and heritage sites. However, issues related to water, land, and forests have often been treated as separate political units, and not as part of the same history. Written by two authors with decades of hands-on experience in this region, this book sheds light on the complex dynamics by which conservation and natural resource management geopolitically shape borderlands such as the Maya Forest. The book introduces the novel concept of forest waterlands as borderlands and fluid edges, which are now subject to concern by conservationists. These are entangled spaces in which conservation, peoples, and politics interact, connect, and disconnect with the nexus of waters, forests, and lands. The book sheds light on the building and mapping of the Maya Forest ecoregion, with particular attention to water as an often neglected, but unifying element. It showcases how the Maya Forest is a distinct region characterized by transformations entangled with the Maya, trails of biological stations, the shared history of chicleros (chewing-gum hunters), fluid international rivers and transboundary basins, and various geopolitical discrepancies. It offers a contemporary glimpse into the Maya Forest’s intertwined bio- and geopolitics, which urge us to rethink borders and boundaries.
This book will be of great interest to students and scholars of nature conservation, global environmental politics, geopolitics, borderlands, international relations, and natural resource management.},
publisher = {Routledge},
author = {Laako, Hanna and Kauffer, Edith},
month = feb,
year = {2025},
doi = {10.4324/9781003429050},
keywords = {Terrestrial Ecoregions, Terrestrial Ecoregions (Wiken 2011)},
}
This book examines the entanglements and blurred edges of nature conservation and geopolitical relations in the borderlands of the trinational Maya Forest. Maya Forest is an umbrella term for transboundary conservation developed by scientists and conservationists in the 1990s to protect the threatened rainforest in the borderlands of Mexico, Belize, and Guatemala. Currently, the Maya Forest is a biodiversity hotspot composed of a network of protected areas and heritage sites. However, issues related to water, land, and forests have often been treated as separate political units, and not as part of the same history. Written by two authors with decades of hands-on experience in this region, this book sheds light on the complex dynamics by which conservation and natural resource management geopolitically shape borderlands such as the Maya Forest. The book introduces the novel concept of forest waterlands as borderlands and fluid edges, which are now subject to concern by conservationists. These are entangled spaces in which conservation, peoples, and politics interact, connect, and disconnect with the nexus of waters, forests, and lands. The book sheds light on the building and mapping of the Maya Forest ecoregion, with particular attention to water as an often neglected, but unifying element. It showcases how the Maya Forest is a distinct region characterized by transformations entangled with the Maya, trails of biological stations, the shared history of chicleros (chewing-gum hunters), fluid international rivers and transboundary basins, and various geopolitical discrepancies. It offers a contemporary glimpse into the Maya Forest’s intertwined bio- and geopolitics, which urge us to rethink borders and boundaries. This book will be of great interest to students and scholars of nature conservation, global environmental politics, geopolitics, borderlands, international relations, and natural resource management.
The speed of change in climate and land cover is associated with the speed of biodiversity changes in avian assemblages of the United States.
Alamo, M. A.; and Manne, L. L.
PLOS ONE, 20(8): e0330153. August 2025.
Publisher: Public Library of Science
Paper
doi
link
bibtex
abstract
@article{alamo_speed_2025,
title = {The speed of change in climate and land cover is associated with the speed of biodiversity changes in avian assemblages of the {United} {States}},
volume = {20},
issn = {1932-6203},
url = {https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0330153},
doi = {10.1371/journal.pone.0330153},
abstract = {Changes in climate and land use land cover are a widely recognized threat to the stability of natural species assemblages’ composition and biodiversity. Species-specific responses to these changes can result in a rearrangement of the species composition of assemblages, altering the stability, resilience, and functioning of the ecosystems of which these assemblages are a part. We assessed the relationship between the rate of change in avian species richness and assemblage dissimilarity and the rate of change in climatic and land use land cover variables across 30 years in five ecoregions of the United States. Areas where effects of changing land use land cover and/or climate were most strongly felt were high elevations and latitudes. Rates of species replacement and loss were associated with changing environmental factors in opposite directions. Rates of change in biodiversity were more strongly predicted by rates of change in land use land cover than by rates of change in climate. For the species assemblages studied here, rapidly changing climate and/ or land use land cover was more strongly affecting total assemblage dissimilarity patterns than species richness even though species richness has received much more research attention. Trends in multiple biodiversity indices capture multiple levels of action (richness vs. assemblage dissimilarity). A study that integrates these allows us to observe the complex and changing interrelationships between biodiversity and the environment (climate and land cover), and thus, plan effectively for preservation of processes that generate patterns of biodiversity.},
language = {en},
number = {8},
urldate = {2026-01-21},
journal = {PLOS ONE},
author = {Alamo, Marlen Acosta and Manne, Lisa L.},
month = aug,
year = {2025},
note = {Publisher: Public Library of Science},
keywords = {Elevation},
pages = {e0330153},
}
Changes in climate and land use land cover are a widely recognized threat to the stability of natural species assemblages’ composition and biodiversity. Species-specific responses to these changes can result in a rearrangement of the species composition of assemblages, altering the stability, resilience, and functioning of the ecosystems of which these assemblages are a part. We assessed the relationship between the rate of change in avian species richness and assemblage dissimilarity and the rate of change in climatic and land use land cover variables across 30 years in five ecoregions of the United States. Areas where effects of changing land use land cover and/or climate were most strongly felt were high elevations and latitudes. Rates of species replacement and loss were associated with changing environmental factors in opposite directions. Rates of change in biodiversity were more strongly predicted by rates of change in land use land cover than by rates of change in climate. For the species assemblages studied here, rapidly changing climate and/ or land use land cover was more strongly affecting total assemblage dissimilarity patterns than species richness even though species richness has received much more research attention. Trends in multiple biodiversity indices capture multiple levels of action (richness vs. assemblage dissimilarity). A study that integrates these allows us to observe the complex and changing interrelationships between biodiversity and the environment (climate and land cover), and thus, plan effectively for preservation of processes that generate patterns of biodiversity.
Tracking changes in wetlandscape properties of the Lake Winnipeg Watershed using Landsat inundation products (1984–2020).
Fendereski, F.; Ma, S.; Mohammady, S.; Spence, C.; Trick, C. G.; and Creed, I. F.
International Journal of Applied Earth Observation and Geoinformation, 136: 104376. February 2025.
Paper
doi
link
bibtex
abstract
@article{fendereski_tracking_2025,
title = {Tracking changes in wetlandscape properties of the {Lake} {Winnipeg} {Watershed} using {Landsat} inundation products (1984–2020)},
volume = {136},
issn = {1569-8432},
url = {https://www.sciencedirect.com/science/article/pii/S1569843225000238},
doi = {10.1016/j.jag.2025.104376},
abstract = {Wetlandscapes—hydrologically connected networks of wetlands—vary over time, causing changes in their provision of hydrological, biogeochemical, and ecological functions to landscapes. Here, we developed a method for mapping wetlands and extracting wetlandscape properties from Landsat-derived inundation data and applied this method to the Lake Winnipeg Watershed (LWW). We first mapped the annual (1984–2020) time series of inundated areas using a fusion of two Landsat-derived inundation products, Global Surface Water Extent (GSWE) and Dynamic Surface Water Extent (DSWE), finding that this fusion reduced omission errors from 17 \% for GSWE and 18 \% for DSWE to 8 \% overall. We then used the inundated area maps to identify the topological structure of the wetlandscape, i.e., networks composed of nodes (representing wetlands) and their links (representing hydrological connectivity among wetlands). The time series of the wetlandscape properties (number, size, and connectivity of wetlands) showed coherence with a concurrent increase in precipitation over the watershed. The LWW is transitioning to a more extensive wetland area consisting of a greater number of larger wetlands with increased connections among them (p {\textless} 0.1). With Landsat-derived inundation products widely available globally, we suggest using the method developed here to analyze changes in wetlandscape properties in other regions worldwide.},
urldate = {2025-05-08},
journal = {International Journal of Applied Earth Observation and Geoinformation},
author = {Fendereski, Forough and Ma, Shizhou and Mohammady, Sassan and Spence, Christopher and Trick, Charles G. and Creed, Irena F.},
month = feb,
year = {2025},
keywords = {NALCMS},
pages = {104376},
}
Wetlandscapes—hydrologically connected networks of wetlands—vary over time, causing changes in their provision of hydrological, biogeochemical, and ecological functions to landscapes. Here, we developed a method for mapping wetlands and extracting wetlandscape properties from Landsat-derived inundation data and applied this method to the Lake Winnipeg Watershed (LWW). We first mapped the annual (1984–2020) time series of inundated areas using a fusion of two Landsat-derived inundation products, Global Surface Water Extent (GSWE) and Dynamic Surface Water Extent (DSWE), finding that this fusion reduced omission errors from 17 % for GSWE and 18 % for DSWE to 8 % overall. We then used the inundated area maps to identify the topological structure of the wetlandscape, i.e., networks composed of nodes (representing wetlands) and their links (representing hydrological connectivity among wetlands). The time series of the wetlandscape properties (number, size, and connectivity of wetlands) showed coherence with a concurrent increase in precipitation over the watershed. The LWW is transitioning to a more extensive wetland area consisting of a greater number of larger wetlands with increased connections among them (p \textless 0.1). With Landsat-derived inundation products widely available globally, we suggest using the method developed here to analyze changes in wetlandscape properties in other regions worldwide.
Un nuevo paquete de R (TENM) para la modelación de nicho ecológico tiempo-específico a partir de series temporales de alta resolución : evaluado en Urocyon cinereoargenteus y Abronia graminea.
Hernández Gutiérrez, M. Á.
Ph.D. Thesis, Universidad Nacional Autónoma de México, 2025.
Paper
link
bibtex
@phdthesis{hernandez_gutierrez_nuevo_2025,
title = {Un nuevo paquete de {R} ({TENM}) para la modelación de nicho ecológico tiempo-específico a partir de series temporales de alta resolución : evaluado en {Urocyon} cinereoargenteus y {Abronia} graminea},
shorttitle = {Un nuevo paquete de {R} ({TENM}) para la modelación de nicho ecológico tiempo-específico a partir de series temporales de alta resolución},
url = {https://hdl.handle.net/20.500.14330/TES01000871264},
language = {spa},
urldate = {2026-01-21},
school = {Universidad Nacional Autónoma de México},
author = {Hernández Gutiérrez, Miguel Ángel},
year = {2025},
keywords = {Population Density},
}
Warm winters, hot moose: temperature drives activity and habitat trade-offs across a cold-adapted species’ range.
Sullender, B. K; Cunningham, C. X; Reinking, A. K; Liston, G. E; Levine, R. L; Verzuh, T. L; Boelman, N. T; Boutin, S.; Suitor, M.; Monteith, K. L; Hebblewhite, M.; Brinkman, T. J; and Prugh, L. R
Environmental Research Letters, 20(12): 124064. December 2025.
Publisher: IOP Publishing
Paper
doi
link
bibtex
abstract
@article{sullender_warm_2025,
title = {Warm winters, hot moose: temperature drives activity and habitat trade-offs across a cold-adapted species’ range},
volume = {20},
issn = {1748-9326},
shorttitle = {Warm winters, hot moose},
url = {https://doi.org/10.1088/1748-9326/ae263a},
doi = {10.1088/1748-9326/ae263a},
abstract = {Moose (Alces alces) are a cold-adapted species that may be vulnerable to overheating at relatively low temperatures in winter. Moose have two main strategies for thermal regulation: shifting activity patterns and selecting habitat that provides thermal refuge. In this study, we compared how moose use these two strategies in response to winter temperature across their latitudinal range. First, we used hidden Markov models to delineate encamped and traveling movement states for five populations of global positioning system-collared moose in relation to time of day, temperature, and snow depth. Next, we used step-selection functions to determine influential covariates of encamped locations. As air temperatures and snow depths increased, moose from all populations were more likely to remain in an encamped, relatively stationary state. All moose became less diurnal and more nocturnal at high temperatures, although the magnitude of changes in activity varied by population. Encamped northern moose selected shrubby habitat that presents foraging opportunities, whereas encamped southern moose selected for coniferous forest that provides poor forage but offers shade in southern regions. The only moose population to select for lower temperatures also experienced the warmest winter on record during our study period, which may explain this population’s low overall activity rates. Our results indicate that moose along their southern range extent are responding to elevated mid-winter temperatures by initially altering activity patterns and subsequently selecting for potential thermal refugia at the expense of foraging habitat, while northern moose were unlikely to shift habitat selection based on temperature unless faced with an anomalously warm winter. As climate change is implicated in range contraction and population declines, our findings suggest that high winter temperatures may be causing moose to not only reduce overall activity but also to forgo preferred foraging habitat in favor of prioritizing thermal refuge, thus forcing a trade-off between nutrition and thermoregulation.},
language = {en},
number = {12},
urldate = {2026-01-21},
journal = {Environmental Research Letters},
author = {Sullender, Benjamin K and Cunningham, Calum X and Reinking, Adele K and Liston, Glen E and Levine, Rebecca L and Verzuh, Tana L and Boelman, Natalie T and Boutin, Stan and Suitor, Mike and Monteith, Kevin L and Hebblewhite, Mark and Brinkman, Todd J and Prugh, Laura R},
month = dec,
year = {2025},
note = {Publisher: IOP Publishing},
keywords = {NALCMS},
pages = {124064},
}
Moose (Alces alces) are a cold-adapted species that may be vulnerable to overheating at relatively low temperatures in winter. Moose have two main strategies for thermal regulation: shifting activity patterns and selecting habitat that provides thermal refuge. In this study, we compared how moose use these two strategies in response to winter temperature across their latitudinal range. First, we used hidden Markov models to delineate encamped and traveling movement states for five populations of global positioning system-collared moose in relation to time of day, temperature, and snow depth. Next, we used step-selection functions to determine influential covariates of encamped locations. As air temperatures and snow depths increased, moose from all populations were more likely to remain in an encamped, relatively stationary state. All moose became less diurnal and more nocturnal at high temperatures, although the magnitude of changes in activity varied by population. Encamped northern moose selected shrubby habitat that presents foraging opportunities, whereas encamped southern moose selected for coniferous forest that provides poor forage but offers shade in southern regions. The only moose population to select for lower temperatures also experienced the warmest winter on record during our study period, which may explain this population’s low overall activity rates. Our results indicate that moose along their southern range extent are responding to elevated mid-winter temperatures by initially altering activity patterns and subsequently selecting for potential thermal refugia at the expense of foraging habitat, while northern moose were unlikely to shift habitat selection based on temperature unless faced with an anomalously warm winter. As climate change is implicated in range contraction and population declines, our findings suggest that high winter temperatures may be causing moose to not only reduce overall activity but also to forgo preferred foraging habitat in favor of prioritizing thermal refuge, thus forcing a trade-off between nutrition and thermoregulation.
Wildfire smoke exposure and mortality burden in the USA under climate change.
Qiu, M.; Li, J.; Gould, C. F.; Jing, R.; Kelp, M.; Childs, M. L.; Wen, J.; Xie, Y.; Lin, M.; Kiang, M. V.; Heft-Neal, S.; Diffenbaugh, N. S.; and Burke, M.
Nature, 647(8091): 935–943. November 2025.
Publisher: Nature Publishing Group
Paper
doi
link
bibtex
abstract
@article{qiu_wildfire_2025,
title = {Wildfire smoke exposure and mortality burden in the {USA} under climate change},
volume = {647},
copyright = {2025 The Author(s), under exclusive licence to Springer Nature Limited},
issn = {1476-4687},
url = {https://www.nature.com/articles/s41586-025-09611-w},
doi = {10.1038/s41586-025-09611-w},
abstract = {Wildfire activity has increased in the USA and is projected to accelerate under future climate change1–3. However, our understanding of the impacts of climate change on wildfire activity, smoke and health outcomes remains highly uncertain because of the difficulty of modelling the causal chain from climate to wildfire to air pollution and health. Here we quantify the mortality burden in the USA due to wildfire smoke fine particulate matter (PM2.5) under climate change. We construct an ensemble of statistical and machine learning models that link climate to wildfire smoke PM2.5 and empirically estimate smoke PM2.5–mortality relationships using data on all recorded deaths in the USA. We project that smoke PM2.5 could result in 71,420 excess deaths (95\% confidence interval: 34,930–98,430) per year by 2050 under a high-warming scenario (shared socioeconomic pathway scenario 3-7.0, SSP3-7.0)—a 73\% increase relative to the estimated 2011–2020 average annual excess deaths from smoke. Cumulative excess deaths from smoke PM2.5 could reach 1.9 million between 2026 and 2055. We find evidence for mortality impacts of smoke PM2.5 that last up to 3 years after exposure. When monetized, climate-driven smoke deaths result in economic damages that exceed existing estimates of climate-driven damages from all other causes combined in the USA4,5. Our research suggests that the health impacts of climate-driven wildfire smoke could be among the most important and costly consequences of a warming climate in the USA.},
language = {en},
number = {8091},
urldate = {2026-01-21},
journal = {Nature},
author = {Qiu, Minghao and Li, Jessica and Gould, Carlos F. and Jing, Renzhi and Kelp, Makoto and Childs, Marissa L. and Wen, Jeff and Xie, Yuanyu and Lin, Meiyun and Kiang, Mathew V. and Heft-Neal, Sam and Diffenbaugh, Noah S. and Burke, Marshall},
month = nov,
year = {2025},
note = {Publisher: Nature Publishing Group},
keywords = {NALCMS},
pages = {935--943},
}
Wildfire activity has increased in the USA and is projected to accelerate under future climate change1–3. However, our understanding of the impacts of climate change on wildfire activity, smoke and health outcomes remains highly uncertain because of the difficulty of modelling the causal chain from climate to wildfire to air pollution and health. Here we quantify the mortality burden in the USA due to wildfire smoke fine particulate matter (PM2.5) under climate change. We construct an ensemble of statistical and machine learning models that link climate to wildfire smoke PM2.5 and empirically estimate smoke PM2.5–mortality relationships using data on all recorded deaths in the USA. We project that smoke PM2.5 could result in 71,420 excess deaths (95% confidence interval: 34,930–98,430) per year by 2050 under a high-warming scenario (shared socioeconomic pathway scenario 3-7.0, SSP3-7.0)—a 73% increase relative to the estimated 2011–2020 average annual excess deaths from smoke. Cumulative excess deaths from smoke PM2.5 could reach 1.9 million between 2026 and 2055. We find evidence for mortality impacts of smoke PM2.5 that last up to 3 years after exposure. When monetized, climate-driven smoke deaths result in economic damages that exceed existing estimates of climate-driven damages from all other causes combined in the USA4,5. Our research suggests that the health impacts of climate-driven wildfire smoke could be among the most important and costly consequences of a warming climate in the USA.