North American Terrestrial Ecoregions—Level III
[Document disponible en anglais seulement]
                1 mai 2011 
                                    149 pages
                                    
            
                
            
            North American Terrestrial Ecoregions—Level III
[Document disponible en anglais seulement]
                    1 mai 2011 
                                            149 pages
                                        
                
                      
                Description
# 10 dans les meilleures publications
                                   
                    The concepts used to define and describe Level III ecoregions follow the original methodology outlined in the 1997 CEC publication, Ecological Regions of North America: Toward a Common Perspective, which provided a descriptive framework in its presentation and discussion of the Level I terrestrial ecoregions. Under this framework, ecoregions were defined in a holistic and comprehensive manner categorized according to a variety of biological, physical and human factors that are found to one extent or another in all natural and human-modified Écosystèmes across North America.
Plus d’information
| Type de document : | Document d'information | 
| Thème : | Écosystèmes | 
| Langues | 
