Population declines of the native frog, Rana muscosa, in Sequoia and Kings Canyon National Parks, California
Bradford DF, Graber DM, Tabatabai F. 1994. Population declines of the native frog, Rana muscosa, in Sequoia and Kings Canyon National Parks, California. The Southwestern Naturalist. 39(4):323-327
The Tablelands and Angel/Blossom Lakes were two locations in Sequoia and Kings Canyon National Parks that were surveyed for the mountain yellow legged frog (Rana muscosa). Recent records were compared with historic park records from these areas to determine trends in the population. Where frogs were present at 27 sites in 1979, they were found at only one site in 1989. A similar comparison of other recent and historic records shows that the frogs remained at only 3 sites. Rana muscosa has disappeared from half of its historic localities in the parks over the last 3 decades. The cause of these declines is not clear but could be linked to acid deposition or introduced fish.
- Type
- Journal Article
- Authors
- Bradford, David; Graber, David; Tabatabai, Farinaz
- Units
- ARD , DEVA , SEKI
- Keywords
- AIRBIB, Animal Studies, Drainages, Headwaters, mountain yellow-legged frog (Rana muscosa), Population Decline