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Start Over Subject Biotic communities Bounding Box -40.000931 39.999015 -39.999064 40.000987

1. Bailey's Ecoregions and Subregions of the United States, 2004

Datasets Stanford University Public content
2004. United States. Forest Service. This polygon shapefile is commonly called Bailey's ecoregions and shows ecosystems of regional extent in the United States, Puerto Rico, and the U.... National Atlas of the United States.

2. ESRI Data & Maps 2004 : World Wildlife Fund Marine Ecoregions

Datasets Harvard University Restricted content
2001. World Wildlife Fund and Environmental Systems Research Institute (Redlands, Calif.). World Wildlife Fund Marine Ecoregions represents global marine ecoregions. Ecoregions are defined as relatively large areas of land or water in the... ESRI.

3. ESRI Data & Maps 2004 : World Wildlife Fund Terrestrial Ecoregions

Datasets Harvard University Restricted content
2001. World Wildlife Fund and Environmental Systems Research Institute (Redlands, Calif.). World Wildlife Fund Terrestrial Ecoregions represents global terrestrial ecoregions. Ecoregions are defined as relatively large areas of land or wa... ESRI.

4. ESRI Data & Maps 2005 : World Wildlife Fund Terrestrial Ecoregions

Datasets Harvard University Restricted content
2001. World Wildlife Fund and Environmental Systems Research Institute (Redlands, Calif.). World Wildlife Fund Terrestrial Ecoregions represents global terrestrial ecoregions. Ecoregions are defined as relatively large areas of land or wa... ESRI.

5. Omernik's Level III Ecoregions of the Continental United States, 2003

Datasets Stanford University Public content
2003. United States. Environmental Protection Agency. This polygon shapefile shows Omernik's Level III ecoregions, derived from a 1:7,500,000 map created by J.M. Omernik in 1987 and from refinements of... National Atlas of the United States.

6. World Wildlife Fund Marine Ecoregions, 2001

Datasets Stanford University Restricted content
2001. World Wildlife Fund and Environmental Systems Research Institute (Redlands, Calif.). This polygon shapefile represents World Wildlife Fund (WWF) global marine ecoregions. Ecoregions are defined as relatively large areas of land or w... Environmental Systems Research Institute (Redlands, Calif.).

7. World Wildlife Fund Terrestrial Ecoregions

Datasets Stanford University Restricted content
2001. World Wildlife Fund and Environmental Systems Research Institute (Redlands, Calif.). This polygon shapefile represents World Wildlife Fund (WWF) global terrestrial ecoregions. Ecoregions are defined as relatively large areas of land... Environmental Systems Research Institute (Redlands, Calif.).