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The state of amphibians in the United States

http://pubs.usgs.gov/fs/2012/3092/

Evidence leading us to conclude that amphibians are declining, along with explanatory factors in the environment and notes on conservation.

by Muths, Erin L.; Adams, Michael J.; Grant, Evan H. C.; Miller, David A.; Corn, P. Stephen; and Ball, Lianne C.
U.S. Geological Survey Fact Sheet 2012-3092
Related topics:
Amphibians, Biodiversity, Herpetology, Interagency programs

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