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分散能力对Emberizoidea (Aves: Passeriformes) 多样化动态的影响

Axel Arango^1,2, Jesús Pinto-Ledezma³, Octavio Rojas-Soto²

¹Center for Computational and Theoretical Biology, Univeristät Würzburg, Würzburg, Germany.

Evolution; international journal of organic evolution

|November 5, 2025

概括

通过翅膀形状来衡量分散能力,并没有显著地提高 Emberizoidea 鸟类的物种发生率. 没有测量的特征,而不是翅膀形态,似乎是这种鸟类群体多样化的主要驱动因素.

科学领域:

宏观进化的研究.
生物多样性生物多样性
鸟类的进化是如何发生的

背景情况:

物种的分散能力对于殖民和孤立至关重要,影响生态和进化.
了解分散和物种化之间的联系是宏观进化研究的关键.

研究的目的:

为了研究Emberizoidea流鸟的散播能力和物种化率之间的关系.
评估翅膀形状,作为分散的代理,是否会影响多样化率.

主要方法:

使用了749个Emberizoidea物种的遗传学数据 (约. 占该类的90%).
采用特征依赖的多样化模型:连续状态 (QuaSSE) 和隐藏状态 (SecSSE).
应用相关的特异化和特征率模拟 (Cor-STRATES) 来评估HWI演变和特异化率的相关性.

主要成果:

在 Emberizoidea 中的物种化率并没有受到分散能力 (手翼指数 - HWI) 的显著影响.
连续状态模型表明,在中间HWI时的物种化峰值,但隐藏状态模型表明,未测量的特征是驱动因素.
HWI进化和物种化速率没有显著的相关性,将翅膀形状与克拉多生成脱.

结论:

这项研究挑战了分散能力和翅膀形状是Emberizoidea鸟类多样化的主要驱动因素的假设.
这个群体的多样化似乎受到了除了翅膀形态和分散能力之外的其他因素的影响.

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