[6] Volunteers record temperature with thermometers and listen for sounds made by specific types of frogs and toads.
[1][8] In 2006, the National Wildlife Federation assessed the utility of FrogWatch USA for the U.S. Geological Survey and published its findings.
It recommended continued funding based on "scientific value alone," though it also acknowledged its value as an educational tool and its ability to render research more cost-efficient.
[1] Scientists have used FrogWatch to study the way frogs and toads change the places they live, which types of frogs are becoming more numerous and which are becoming less numerous, species diversity, the way species react to changes in temperature, and the way they act during different parts of the year.
[1] The United States Geological Survey started FrogWatch USA in 1998, but the National Wildlife Federation took over in 2002.