Amphibian and Reptile Distribution and Habitat Relationships in the Lost River Mountains and Challis-Lemhi Resource Areas

摘要

Prior to 1996, information on amphibian and reptile populations inhabiting the Salmon-Challis National Forest (USFS) lands of the Lost River Mountains and the Bureau of Land Management (BLM) lands of the Challis and Lemhi Resource Areas consisted of a few museum records and poorly documented incidental observations. Through a challenge cost-share agreement with the USFS Salmon-Challis National Forest and the BLM Salmon Office, we compiled historic records, interviewed local residents, and systematically surveyed wetland habitats within this rugged 9,000 km (sq. km.) area for amphibians and reptiles. Field surveys began in May, 1996, and continued through September, 1997. We compiled physical, chemical, and habitat data at 70 wetland sites, and revisited some sites, such as portions of Chilly Slough, up to a half dozen times within the same year, and in both years. Additionally, more than 50 areas were searched opportunistically both for amphibians and reptiles.