Data from: Large-scale recovery of an endangered amphibian despite ongoing exposure to multiple stressors

Human influences are causing the disappearance of species at a rate unprecedented in millions of years. Amphibians are being particularly affected, and extinctions of many species may be inevitable. The Sierra Nevada yellow-legged frog (Rana sierrae) was once common in the mountains of California (United States), but human impacts have driven it near extinction. Repeated surveys of thousands of water bodies in Yosemite National Park show that the decline of R. sierrae has recently reversed and that population abundance is now increasing markedly in part because of reduced influence of stressors, including disease and introduced fish. These results suggest that some amphibians may be more resilient than is assumed, and with appropriate management, declines of such species may be reversible.人类活动正以数百万年来前所未有的速率导致物种消失。两栖动物受影响尤为严重，众多两栖物种的灭绝或已难以避免。内华达山脉黄腿蛙（Rana sierrae）曾广泛分布于美国加利福尼亚州的山区，但人类活动已使其种群濒临灭绝。针对优胜美地国家公园内数千处水体的多次调查显示，内华达山脉黄腿蛙的种群衰退已于近期出现逆转，当前其种群丰度正显著回升，这在一定程度上得益于病害与外来鱼类等胁迫因子的影响得以减弱。该研究结果表明，部分两栖动物的恢复力或许远超此前的预设，若辅以恰当的管理措施，这类物种的种群衰退过程或可实现逆转。