Pesticides Are Involved With Population Declines of Amphibians in the California Sierra Nevadas
Several species of frogs and toads are in serious decline in the Sierra Nevada Mountains of California. These species include the threatened red-legged frog (Rana aurora), foothill yellow-legged frog (R. boylii), mountain yellow-legged frog (R. muscosa), Cascades frog (Rana cascadae), western toad (...
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| Format: | Article |
| Language: | English |
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Wiley
2001-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/tsw.2001.36 |
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| author | Donald W. Sparling Gary Fellers Laura McConnell |
| author_facet | Donald W. Sparling Gary Fellers Laura McConnell |
| author_sort | Donald W. Sparling |
| collection | DOAJ |
| description | Several species of frogs and toads are in serious decline in the Sierra Nevada Mountains of California. These species include the threatened red-legged frog (Rana aurora), foothill yellow-legged frog (R. boylii), mountain yellow-legged frog (R. muscosa), Cascades frog (Rana cascadae), western toad (Bufo boreas) and Yosemite toad (B. canorus). For many of these species current distributions are down to 10% of historical ranges [1,2]. Several factors including introduced predators [3,4,5], habitat loss [2], and ultraviolet radiation [6] have been suggested as causes of these declines. Another probable cause is air-borne pesticides from the Central Valley of California. The Central Valley, especially the San Joaquin Valley, is a major agricultural region where millions of pounds of active ingredient pesticides are applied each year (http://www.cdpr.ca.gov/dprdatabase.htm). Prevailing westerly winds from the Pacific Coast transport these pesticides into the Sierras [7,8]. |
| format | Article |
| id | doaj-art-4e4dd7de51e54aa791aaa9b9892e3764 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2001-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-4e4dd7de51e54aa791aaa9b9892e37642025-02-03T07:24:31ZengWileyThe Scientific World Journal1537-744X2001-01-01120020110.1100/tsw.2001.36Pesticides Are Involved With Population Declines of Amphibians in the California Sierra NevadasDonald W. Sparling0Gary Fellers1Laura McConnell2USGS Patuxent Wildlife Research Center, Laurel, MD 20708-4017, USAUSGS Patuxent Wildlife Research Center, Laurel, MD 20708-4017, USAUSGS Patuxent Wildlife Research Center, Laurel, MD 20708-4017, USASeveral species of frogs and toads are in serious decline in the Sierra Nevada Mountains of California. These species include the threatened red-legged frog (Rana aurora), foothill yellow-legged frog (R. boylii), mountain yellow-legged frog (R. muscosa), Cascades frog (Rana cascadae), western toad (Bufo boreas) and Yosemite toad (B. canorus). For many of these species current distributions are down to 10% of historical ranges [1,2]. Several factors including introduced predators [3,4,5], habitat loss [2], and ultraviolet radiation [6] have been suggested as causes of these declines. Another probable cause is air-borne pesticides from the Central Valley of California. The Central Valley, especially the San Joaquin Valley, is a major agricultural region where millions of pounds of active ingredient pesticides are applied each year (http://www.cdpr.ca.gov/dprdatabase.htm). Prevailing westerly winds from the Pacific Coast transport these pesticides into the Sierras [7,8].http://dx.doi.org/10.1100/tsw.2001.36 |
| spellingShingle | Donald W. Sparling Gary Fellers Laura McConnell Pesticides Are Involved With Population Declines of Amphibians in the California Sierra Nevadas The Scientific World Journal |
| title | Pesticides Are Involved With Population Declines of Amphibians in the California Sierra Nevadas |
| title_full | Pesticides Are Involved With Population Declines of Amphibians in the California Sierra Nevadas |
| title_fullStr | Pesticides Are Involved With Population Declines of Amphibians in the California Sierra Nevadas |
| title_full_unstemmed | Pesticides Are Involved With Population Declines of Amphibians in the California Sierra Nevadas |
| title_short | Pesticides Are Involved With Population Declines of Amphibians in the California Sierra Nevadas |
| title_sort | pesticides are involved with population declines of amphibians in the california sierra nevadas |
| url | http://dx.doi.org/10.1100/tsw.2001.36 |
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