World Wildlife Fund Aquatic Conservation Status
Source: "Freshwater Ecoregions of North America: A Conservation Assesment" fig 4.10 pg. 72, by World Wildlife Fund and Island Press
Map Description:
Using mapped habitat information, satellite data, and expert opinion as guides, the World Wildlife Fund (WWF) developed a threat analysis for each aquatic ecoregion. This map is from the publication entitled "Freshwater Ecoregions of North America: A Conservation Assessment, fig. 4.10 pg. 72, which is is an excellent resource for assessing the status and trends of biodiversity. For a detailed description of the threat analysis refer to the publication below.

Cautions for this Product:
This map is copyrighted by Island Press and World Wildlife Fund. Map used with permission.

For Further Information:
"Freshwater Ecoregions of North America: A Conservation Assessment" by R.A Abell et al.,2000. Island Press.