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The U.S. Geological Survey Amphibian Research and Monitoring Initiative-2011 Annual Update

http://pubs.usgs.gov/fs/2012/3090/

Amphibians are declining throughout the US. Here we explain how we monitor amphibians and why, along with some of the results we have obtained.

by Adams, Michael J.; Grant, Evan H. C.; Miller, David A.; Waddle, J. Hardin; and Ball, Lianne C.
U.S. Geological Survey Fact Sheet 2012-3090
Related topics:
Amphibians, Animal and plant census, Biogeography, Herpetology, Invasive species, Population dynamics, Wildlife disease

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