息地开放性和状色彩在深远时间的演变
Jonathan Goldenberg1,2, Karen Bisschop3,4, Joshua W Lambert5
1Division of Biodiversity and Evolution, Department of Biology, Lund University, Lund, Sweden. jonathan.goldenberg@ugent.be.
Nature communications
|March 18, 2025
概括
全球 (和蛇) 颜色与息地开放性有关,在开放环境中更明亮的皮肤更受欢迎. 亮度演变也与温度变化和干燥事件相关联.
科学领域:
- 动物学 动物学
- 进化生物学 进化生物学
- 生态生态学 生态生态学
背景情况:
- 状动物的整体颜色的生态意义已经得到了充分的研究.
- 然而,色色彩变化的全球模式的驱动因素尚未完全理解.
研究的目的:
- 为了研究生态环境变量对状的演化历史的影响.
- 为了确定调节和蛇颜色变化的全球模式的关键因素.
主要方法:
- 利用了包括1249种状动物物种在内的全球数据集.
- 分析了六个生态环境变量与色彩演变之间的关联.
- 研究了这些变量之间的相互作用及其对进化历史的影响.
主要成果:
- 息地开放性是亮度演变的唯一一致的预测因素,有利于在开放息地中更明亮的整体.
- 亮度演变速率与δ18O (温度代理) 的变化相关.
- 亮度的演变在全球干旱时期 (米奥森,普略森) 加快了.
结论:
- 息地的开放性是状的亮度演变的主要驱动因素.
- 气候变化,特别是干旱,影响了亮度演变速度,可能是通过改变息地结构.
- 这些发现突出了一个重要的环境因素,塑造了最大四足动物的颜色变化.
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