在未来的变暖期间,过去的菌体适应能力是有限的
Rui Ying1, Fanny M Monteiro2, Jamie D Wilson3
1School of Earth Sciences, University of Bristol, Bristol, UK. rui.ying@bristol.ac.uk.
Nature
|November 13, 2024
概括
海洋浮游生物面临着快速气候变化的挑战. 虽然一些物种适应了过去的变暖,但未来的变暖可能会限制它们的适应能力,导致极地迁移和生物量减少.
科学领域:
- 古代海洋学
- 气候模型
- 海洋生态
背景情况:
- 气候变化影响海洋生态系统,导致迁移,生物量减少和灭绝.
- 海洋物种对过去和未来气候变化的适应能力尚不清楚.
研究的目的:
- 通过地质和人为时间尺度研究海洋化动物浮游生物 (Foraminifera,Rhizaria) 的热适应.
- 为了比较foraminifera的适应反应过去的脱冰变暖与预计的未来变暖.
主要方法:
- 结合化石记录与基于全球特征的浮游生物模型的分析.
- 在不同的变暖场景下模拟虫的最佳温度和迁移模式.
主要成果:
- 与过去变暖适应的共生体相结合,而非共生性向极地迁移.
- 模型模拟表明,在未来快速变暖的情况下,所有类生态群体的适应能力有限.
- 预计到2100年全球碳生物质将减少5.7-15.1%.
结论:
- 海洋浮游生物面临地质和人为变暖的不同挑战.
- 目前的变暖速度超过了虫的适应能力,影响了海洋生态系统和碳循环.
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