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An extirpated lineage of a threatened frog species resurfaces in southern California

November 29, 2017

Southern California has experienced widespread amphibian declines since the 1960s. One species, the Vulnerable California red-legged frog Rana draytonii, is now considered to be extirpated from most of southern California. In February 2017 a population of R. draytonii was discovered in the southern foothills of the San Bernardino Mountains of Riverside County, California, near the edge of the species’ historical distribution. This population belongs to an mtDNA lineage that was presumed to be extirpated within the USA but is still extant in Baja California, Mexico. This discovery increases the potential for future, evolutionarily informed translocations within the southern portion of this species’ range in California.

Citation Information

Publication Year 2018
Title An extirpated lineage of a threatened frog species resurfaces in southern California
DOI 10.1017/S0030605317001168
Authors Adam R. Backlin, Jonathan Q. Richmond, Elizabeth Gallegos, Clinton K. Christensen, Robert N. Fisher
Publication Type Article
Publication Subtype Journal Article
Series Title Oryx
Index ID 70194479
Record Source USGS Publications Warehouse
USGS Organization Western Ecological Research Center