Overheated amphibians

IF 13.9 1区 生物学 Q1 ECOLOGY Nature ecology & evolution Pub Date : 2025-04-16 DOI:10.1038/s41559-025-02706-7
Walter Andriuzzi
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过热的两栖动物
与物种生理需求和小气候波动有关的不确定性阻碍了对气候变化对生物多样性影响的预测。发表在《自然》杂志上的一项研究解决了两栖动物的这两个问题,两栖动物对变暖和干旱特别敏感。Pottier等人将经验观察数据库与基于系统发育模型的估算相结合,量化了5203种两栖动物的热极限。这提供了这些动物在生理上可以忍受的温度的估计。接下来,Pottier等人利用微环境数据和生物物理建模的最新进展,量化了两栖动物在野外实际经历的环境温度。通过估计世界各地两栖动物每小时经历的小气候,他们发现,104种物种尽管退回到小气候避难所,但已经可能经历致命的过热。在未来高排放的气候条件下,这一数字预计将翻两番,特别是由于树木和陆生物种越来越多地暴露于极端温度之下。Pottier等人发现许多物种即使在植被荫蔽下也会过热。值得注意的是,该研究报告了热安全边际(物种的温度耐受性与环境温度之间的差异)与过热风险之间的非线性关系。换句话说,具有明显相似的热脆弱性的物种可能面临明显不同的过热概率。这种见解强调了考虑气候的小尺度时空变化的重要性。原始参考文献:Nature 639, 954-961 (2025)
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Nature ecology & evolution
Nature ecology & evolution Agricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics
CiteScore
22.20
自引率
2.40%
发文量
282
期刊介绍: Nature Ecology & Evolution is interested in the full spectrum of ecological and evolutionary biology, encompassing approaches at the molecular, organismal, population, community and ecosystem levels, as well as relevant parts of the social sciences. Nature Ecology & Evolution provides a place where all researchers and policymakers interested in all aspects of life's diversity can come together to learn about the most accomplished and significant advances in the field and to discuss topical issues. An online-only monthly journal, our broad scope ensures that the research published reaches the widest possible audience of scientists.
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