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Calling Surveys and Visual Searches of Anuran Species: Reliability in the Palouse Region of Northern Idaho

Ryan J. Monello and R. Gerald Wright

Amphibian distribution and breeding status was determined in 28 man-made, northern Idaho ponds. Ponds surveyed were located in four primary habitat classifications: forest, agriculture, grassland, and residential. A total of five species were found, with the spotted frog (Rana pretiosa) and Pacific chorus frog (Pseudacris regilla) being the dominanat inhabitants and the long-toed salamander (Ambystoma macrodactylum), bullfrog (R. catesbeiana), and western toad (Bufo boreas) occupying ponds to a lesser extent. Relative abundance was thus recorded for the Pacific chorus frog and spotted frog by calling surveys and eyeshine searches respectively.

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U.S. Department of the Interior
U.S. Geological Survey
Patuxent Wildlife Research Center
Laurel, MD, USA 20708-4038
http://www.pwrc.usgs.gov/naamp3/naamp3.html
Contact: Sam Droege, email: Sam_Droege@usgs.gov
Last Modified: June 2002