Polar bear ecoregions
By Coastal and Marine Hazards and Resources Program
2014 (approx.)
Detailed Description
Map of the four ecoregions that make up the polar bear's range, plus a depiction of seasonal patterns of ice motion and distribution.
Sources/Usage
Public Domain.
Related
Evaluating and ranking threats to the long-term persistence of polar bears Evaluating and ranking threats to the long-term persistence of polar bears
The polar bear (Ursus maritimus) was listed as a globally threatened species under the U.S. Endangered Species Act (ESA) in 2008, mostly due to the significant threat to their future population viability from rapidly declining Arctic sea ice. A core mandate of the ESA is the development of a recovery plan that identifies steps to maintain viable populations of a listed species. A...
Authors
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Related
Evaluating and ranking threats to the long-term persistence of polar bears Evaluating and ranking threats to the long-term persistence of polar bears
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Authors
Todd C. Atwood, Bruce G. Marcot, David C. Douglas, Steven C. Amstrup, Karyn D. Rode, George M. Durner, Jeffrey F. Bromaghin