The precarious persistence of the endangered Sierra Madre yellow-legged frog Rana muscosa in southern California, USA
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Abstract
We conducted surveys for the Endangered Sierra Madre yellow-legged frog Rana muscosa throughout southern California to evaluate the current distribution and status of the species. Surveys were conducted during 2000–2009 at 150 unique streams and lakes within the San Gabriel, San Bernardino, San Jacinto, and Palomar mountains of southern California. Only nine small, geographically isolated populations were detected across the four mountain ranges, and all tested positive for the amphibian chytrid fungus Batrachochytrium dendrobatidis. Our data show that when R. muscosa is known to be present it is easily detectable (89%) in a single visit during the frog's active season. We estimate that only 166 adult frogs remained in the wild in 2009. Our research indicates that R. muscosa populations in southern California are threatened by natural and stochastic events and may become extirpated in the near future unless there is some intervention to save them.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | The precarious persistence of the endangered Sierra Madre yellow-legged frog Rana muscosa in southern California, USA |
| Series title | Oryx |
| DOI | 10.1017/S003060531300029X |
| Volume | 49 |
| Issue | 1 |
| Year Published | 2015 |
| Language | English |
| Publisher | Oryx |
| Contributing office(s) | Western Ecological Research Center |
| Description | 8 p. |
| First page | 157 |
| Last page | 164 |
| Country | United States |
| State | California |
| Other Geospatial | Palomar, San Bernardino, San Gabriel, San Jacinto Mountains |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |