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在过去的1.45亿年里,鱼和鱼的全球灭绝事件和持续的年龄依赖性在鱼和鱼中存在

Kristína Kocáková¹, Daniele Silvestro^2,3,4, Gregor Hans Mathes^1,5

¹Department of Paleontology, University of Zurich, 8006 Zurich, Switzerland.

Proceedings. Biological sciences

|January 15, 2026

概括

年轻的鱼和鱼 (neoselachians) 面临更高的灭绝风险,年龄是脆弱性的一致预测因素. 这项研究揭示了以前未被发现的灭绝事件,并突出了这些海洋物种的动态多样化.

科学领域:

古生物学的古生物学
海洋生物学海洋生物学
进化生物学进化生物学

背景情况:

了解物种对灭绝的脆弱性在不断变化的世界中至关重要.
年龄依赖性灭绝 (ADE) 是一种灭绝风险的预测因素,但趋势往往是相互排斥的.
以前的模型很少考虑ADE的分类特定多样化轨迹.

研究的目的:

在过去的1.45亿年里,重建新鱼 (现代鱼和鱼) 的全球多样化轨迹.
通过使用一种允许同时出现正面和负面趋势的新型模型来评估依赖年龄的灭绝 (ADE).
为了确定物种年龄是否是一个一致的内在预测者,对新虫的灭绝脆弱性.

主要方法:

全球多样化轨迹的重建新拉基人跨越1.45亿年.
应用一种新的模型,旨在同时适应积极和消极的年龄相关灭绝趋势.
在新拉基类中对灭绝事件和物种年龄脆弱性的分析.

主要成果:

揭示了neoselachians的动态多样化轨迹,包括四个以前未被发现的灭绝事件.
最显著的灭绝事件发生在世 - 奥利古纪时期.
观察到持续的负年龄依赖灭绝 (ADE),年龄小于400万年的物种表现出更高的脆弱性.

结论:

尼奥塞拉基亚人在深远的时间里比以前被认为的更容易灭绝.
物种年龄是鱼和鱼灭绝脆弱性的一致内在预测因素.
这些发现强调了在对海洋脊椎动物的灭绝风险评估中考虑年龄相关因素的重要性.

关键词:

这是新生儿.年龄相关的灭绝.多样化的多样化多样化的多样化灭绝灭绝灭绝灭绝鱼鱼鱼鱼鱼鱼

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