使用元分析方法预测气候变化对水生动物生育能力的影响
Amber Chatten1,2, Isobel Grieve2, Eirini Meligoniti2
1Centre for Biological Diversity, School of Biology, University of St Andrews, St Andrews, UK.
Ecology letters
|December 31, 2024
概括
气候变化影响动物生育能力,特别是水生物种. 变暖的温度会比内部更严重地损害雌同体和外部肥料,影响人口的生存.
科学领域:
- 生态生态学 生态生态学
- 生殖生物学 生殖生物学
- 气候变化科学 气候变化科学
背景情况:
- 生殖生理学对热应激敏感,引发了对气候变化对动物生育效应的影响的担忧.
- 降低生育率可能会影响人口增长和生存,需要更好地了解气候变化对生殖特征的影响.
研究的目的:
- 综合现有研究,研究热应激对水生动物生育能力的影响.
- 确定哪些生殖策略和物种最容易受到温度升高的影响.
主要方法:
- 进行了一项元分析,综合了来自241种水生物种的276项研究中的1894个效应大小.
- 这项研究分析了温度对生育能力的各种方面的影响,包括伴生体和外部和内部受精之间的差异.
主要成果:
- 发现外部肥料比内部肥料更容易受到变暖的影响,特别是在淡水物种.
- 在某些条件下,温度的升高对性子有害,女性生育能力对变暖的敏感性比男性生育能力更高.
- 这些发现挑战了普遍认为男性容易受到热应激的观点.
结论:
- 气温上升对水生动物的生育能力构成重大风险,对种群的生存能力产生影响.
- 受精策略和性别对变暖的不同脆弱性需要在与气候变化相关的保护工作中加以考虑.
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