Habitat associations of species show consistent but weak responses to climate.
Habitat associations of species show consistent but weak responses to climate.
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物种的栖息地关联对气候表现出一致但较弱的反应。
DOI：
10.1098/rsbl.2012.0112
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发表时间：
2012
期刊：
影响因子：
3.3
通讯作者：
Suggitt AJ
中科院分区：
文献类型：
--
作者：
Suggitt AJ
不同的植被类型可以在局部尺度上产生小气候的变化，可能会缓冲不利气候对物种的影响。为了确定在气候变暖的情况下，物种是否可以对这种小气候做出反应，我们评估了变温物种（蝴蝶）是否可以利用有利的小气候，并改变它们对不同栖息地的使用，以应对气候的逐年变化。在相对寒冷的地区（英国）和温暖的地区（加泰罗尼亚），大多数物种在炎热的年份转移到凉爽，封闭的栖息地（如林地），在凉爽的年份转移到温暖，开放的栖息地（如草地）。此外，四分之三的物种发生在封闭的栖息地更频繁地在温暖的地区比在凉爽的地区。因此，物种改变其当地分布，并改变其栖息地协会，以利用有利的小气候，虽然转移的幅度（约。1.3%的个体从露天到阴凉处，每摄氏度）不太可能缓冲物种免受区域气候变暖的影响。
Different vegetation types can generate variation in microclimates at local scales, potentially buffering species from adverse climates. To determine if species could respond to such microclimates under climatic warming, we evaluated whether ectothermic species (butterflies) can exploit favourable microclimates and alter their use of different habitats in response to year-to-year variation in climate. In both relatively cold (Britain) and warm (Catalonia) regions of their geographical ranges, most species shifted into cooler, closed habitats (e.g. woodland) in hot years, and into warmer, open habitats (e.g. grassland) in cooler years. Additionally, three-quarters of species occurred in closed habitats more frequently in the warm region than in the cool region. Thus, species shift their local distributions and alter their habitat associations to exploit favourable microclimates, although the magnitude of the shift (approx. 1.3% of individuals from open to shade, per degree Celsius) is unlikely to buffer species from impacts of regional climate warming.