Canary in the coal mine – amphibians

Amphibians: Canaries in the environmental coal mine. Amphibian die-off, like the death of canaries by noxious gases in coal mines during the last century, may be warning us of serious environmental dangers ahead. Frogwatch USA is a partnership program affiliated with USGS and designed to enlist the aid of volunteers in describing and monitoring amphibians nationwide.

This year–designated “The year of the frog” by Amphibian Ark, a conservation organization–the Fort Collins Natural Areas Program is using its cadre of volunteers to make a baseline survey of amphibians in Fort Collins natural areas.
North Forty News, July 2008