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全球温度同质化可以消除迁徙动物的时间隔离,从而可能损失人口结构

Roeland A Bom^1,2, Theunis Piersma^1,2,3, José A Alves^4,5

¹Department of Coastal Systems, NIOZ Royal Netherlands Institute for Sea Research, Den Burg, The Netherlands.

Global change biology

|January 26, 2024

概括

气候变化使全球气温同步,可能会使迁徙鸟类群体像条尾一样合并. 这可能会通过破坏生殖隔离和独特的迁徙习惯来威胁生物多样性.

科学领域:

生态学和进化生物学.
气候变化科学气候变化科学
鸟类学鸟类学是一门学科.

背景情况:

气候变化正在增加全球温度同步,这一现象被称为"世界同质化".
这种环境同质化可能会通过影响人口结构增加灭绝风险和生物多样性丧失.
迁徙动物,特别是那些有部分同情性种群的动物,容易受到环境变化的影响.

研究的目的:

研究全球气温同步增加如何影响迁徙动物的种群结构.
分析气候变化对两种条尾鱼亚种 (Limosa lapponica yamalensis和Limosa lapponica taymyrensis) 的时间分离的影响.
预测同步对生殖隔离和人口特异性的潜在后果.

主要方法:

利用卫星跟踪数据来分析尾子亚种的迁徙时间.
采用雪覆盖卫星图像来评估在繁殖范围内的气候轨迹和融雪日期.
将历史气候数据 (1997-2020年) 与亚种的迁徙反应进行比较.

主要成果:

两种亚种的迁徙时间与它们在西伯利亚原繁殖地的融雪日期相关.
繁殖范围处于不同的气候轨迹上,在泰米伦尼斯 (taymyrensis) 范围的融雪速度更快.
预计这两种亚种的融雪日期将在2036-2040年同步,而亚马林斯亚种则没有适应性反应.

结论:

越来越多的气候同步威胁到破坏对迁徙鸟类的繁殖隔离至关重要的时间分离.
由于同步迁移,尾子亚种的潜在合并可能导致不同种群和日常生活的丧失.
气候变化带来的环境同质化对迁徙物种的生物多样性和进化轨迹构成重大风险.

关键词:

利莫萨·拉波尼卡·泰米伦西斯 (Limosa lapponica taymyrensis) 是一个葡萄树.这种植物是Limosa lapponica yamalensis.气候变化气候变化气候变化远距离迁移是长途迁移的一种方式.雪融化了,雪已经融化了.时间隔离的时间隔离.

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