Quantitative evidence for the effects of multiple drivers on continental-scale amphibian declines

作者: Evan H. Campbell Grant , David A. W. Miller , Benedikt R. Schmidt , Michael J. Adams , Staci M. Amburgey

DOI: 10.1038/SREP25625

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摘要: Since amphibian declines were first proposed as a global phenomenon over quarter century ago, the conservation community has made little progress in halting or reversing these trends. The early search for “smoking gun” was replaced with expectation that are caused by multiple drivers. While field observations and experiments have identified factors leading to increased local extinction risk, evidence effects of drivers is lacking at large spatial scales. Here, we use 389 time-series 83 species complexes from 61 study areas across North America test 4 major hypothesized declines. find populations being lost metapopulations an average rate 3.79% per year, not related any particular threat continental scale; likewise effect each stressor variable regional This result - exposure threats varies spatially, vary their response provides generality development strategies. Greater emphasis on solutions this globally shared needed.

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