竞争促进模型植物群落向变暖范围边缘的快速适应

Takuji Usui* and Amy L. Angert INTRODUCTION: As climate change accelerates, whether populations can adapt fast enough to warming is a central question in ecology, evolution, and conservation. Many species are already facing severe heat stress at the warm edges of their geographic range, where without an evolutionary response, local extinction and range contraction are often predicted. Most predictions of whether populations will adapt at warm range edges, however, ignore species interactions. A particularly important and unresolved question therefore is how interspecific competitors influence adaptive responses at warm range edges, especially given that climate- driven range shifts are expected to intensify competitive pressure at warm range edges. …