Resources by David Bishop

Title Available As Summary Date ID Author
Sustaining America's Aquatic Biodiversity - Frog Biodiversity and Conservation
About 4,300 species of amphibians (frogs, toads, and salamanders) are found worldwide. Of these, nearly 100 species (actually 80 to 99 species depending on which taxonomist you believe) are frogs and toads that inhabit the United States. About 30 percent of these are in trouble and need your
May 1, 2009 420-527
Sustaining America's Aquatic Biodiversity - Salamander Biodiversity and Conservation
Of the more than 400 species of salamanders found worldwide, 130 to 150 live in North America. Over 40 percent of these are considered to be at risk.
May 1, 2009 420-528