Changing Arctic ecosystems-Research to understand and project changes in marine and terrestrial ecosystems of the Arctic

http://pubs.usgs.gov/fs/2011/3136/

Three themes of ongoing research: forecasting polar bear and walrus population response to changing marine ecosystems; measuring wildlife population changes in the Arctic coastal plain, and wildlife communities in the boreal-Arctic transition zone.

by Geiselman, Joy; DeGange, Anthony; Oakley, Karen L.; Derksen, Dirk V.; and Whalen, Mary E.

U.S. Geological Survey Fact Sheet 2011-3136