Freshwater ecoregions of North America
Limnology
Biodiversité
Biological diversity conservation
Freshwater ecology
Naturschutz
Environmental Conservation & Protection - General
Aquatic plants
Biotic communities
Environmental Studies
Biodiversity conservation
Nature/Ecology
North America
Rivers
Conservation
Environmental protection
Nature
"North America's freshwater habitats and the extraordinary biodiversity they contain are facing unprecedented threats from a range of sources, including flow alteration, habitat fragmentation, introduced species, and overall land use changes.". "World Wildlife Fund-U.S. assembled a team of leading …
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