New research from UC Santa Barbara biologist Roland Knapp and colleagues shows that after decades of decline — and despite continued exposure to stressors including non-native fish, disease and pesticides — the Sierra Nevada yellow-legged frog’s abundance across Yosemite has increased seven-fold, and at an annual rate of 11 percent, over the 20-year study period.
Those increases, occurring over a large landscape and across hundreds of populations, Knapp said, provide a rare example of amphibian recovery at an ecologically relevant scale. The findings appear in the early online edition of the Proceedings of the National Academy of Sciences.
Tuesday, October 4, 2016
October 4, 2016 - 9:02am