海洋变暖对皮动物的影响:一个元分析
Bethan J Lang1,2, Jennifer M Donelson1, Kevin R Bairos-Novak1,2
1Australian Research Council Centre of Excellence for Coral Reef Studies James Cook University Townsville Queensland Australia.
Ecology and evolution
|August 11, 2023
概括
海洋变暖加快了皮的新陈代谢,降低了生存率,热带物种和幼虫是最脆弱的. 在预计的世纪末变暖情景下,小行星和未成年人面临着加剧的影响.
科学领域:
- 海洋生物学 海洋生物学
- 生态生态学 生态生态学
- 气候变化科学 气候变化科学
背景情况:
- 海洋温度上升对海洋外热生物,特别是皮动物构成重大威胁,它们在生态上发挥着至关重要的作用.
- 现有的实验室研究表明,皮动物对变暖的反应是可变的,因此需要进行全面的合成来确定广泛的模式.
研究的目的:
- 进行综合85项研究的元分析,以了解海洋变暖对皮表现预测因素的影响.
- 为了比较跨生物指标,生命阶段,分类类别和区域的平均反应,包括对本世纪末变暖的预测.
主要方法:
- 来自85项关于皮动物和海洋变暖的研究的710个个别反应的元分析.
- 多变量线性混合效应模型被用于分析各种生物和环境因素的平均反应.
- 具体的模型集中在应对超过预计的世纪末温度的变暖幅度的反应上.
主要成果:
- 海洋变暖通常会增加皮的新陈代谢率 (+32%) 并降低生存率 (-35%).
- 亚热带和热带皮动物表现出更高的脆弱性 (分别为-9%和-8%),幼虫 (-20%) 和小行星 (-30%) 特别敏感.
- 预计本世纪末的变暖加剧了对小行星 (-51%),热带物种 (-34%) 和幼虫 (-40%) 的负面影响.
结论:
- 海洋变暖对皮动物种群构成重大威胁,影响了新陈代谢,生存和招募.
- 幼虫和幼年阶段,以及小行星和热带物种,被确定为关键的脆弱性.
- 这些发现有助于预测海洋变暖对基石和侵入性皮物种和海洋生态系统的生态后果.
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