物种对天气异常的反应取决于当地适应和范围位置
Yolanda Melero1,2,3, Luke C Evans4,5, Mikko Kuussaari6
1Department of Evolutionary Biology, Ecology and Environmental Sciences & Biodiversity Research Institute (IRBio), Universitat de Barcelona, Barcelona, Spain. ymelero@ub.edu.
Communications biology
|April 24, 2025
概括
物种适应当地气候影响它们对气候变化的反应. 与预期相反,本地适应物种在范围边缘显示出稳定的种群,可能是由于热力学限制.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 气候变化生物学 气候变化生物学
背景情况:
- 物种在应对气候变化的过程中表现出差异,通常与当地适应和利基地位有关.
- 对气候变化的弹性通常预计在生物气候利基的中心,但这不是普遍观察到的.
研究的目的:
- 研究当地适应和生物气候利基位置如何影响物种对气候异常的敏感性.
- 用长期监测数据分析这些因素对人口趋势的影响.
主要方法:
- 利用34个物种的长期蝶监测数据.
- 分析的物种对气候异常的敏感性,与当地适应和生物气候利基位置相关.
主要成果:
- 气候异常对当地适应物种的所有种群产生了负面影响.
- 全球适应物种对异常的反应因种群位置和异常方向而有所不同.
- 当地适应物种在尾部范围边缘保持稳定的丰度,但在前沿边缘下降,可能是由于热力学约束 ("越热越好").
结论:
- 物种对气候变化的敏感性是由它们的适应策略 (本地与全球) 以及它们在生物气候中的位置调节的.
- "越暖越好"假说可能会解释局部适应物种在范围边缘的意想不到的种群动态.
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