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生态的分离或生态的分割在一个广泛的新热带鸟类谱系中

Jacob C Cooper^1,2,3

¹Department of Biology, University of Nebraska at Kearney, Kearney, NE, United States of America.

|May 6, 2024

概括

生态利基保守主义,而不是分歧,主导着马丁进化. 种类往往分隔祖先的利基,而不是适应新的环境,即使在地理上孤立.

科学领域:

进化生物学是进化的生物学.
生态生态学生态生态学
鸟类学鸟类学是一门学科.

背景情况:

理论上,生态利基差异伴随着地理隔离和物种多样化.
利基保护主义,即种群保留祖先生态特征的倾向,是对分歧物种的零期望.
鸟类属 *Progne* (马丁) 由于其多样化的分布和进化历史,提供了一个模型系统.

研究的目的:

调查广泛传播的鸟类属 *Progne*. 的生态利基分歧和保守主义.
测试 *Progne* 中的全方位物种化是否涉及利基转移或利基分割.
了解不同鸟类血统中的生态的进化模式.

主要方法:

用公开可用的分布数据构建了生态利基模型,用于*Progne*物种.
对环境空间进行了对对比,以评估利基重叠和分歧.
为了研究利基进化模式,纳入了 *Progne* 属的遗传学分析.

主要成果:

在Progne*马丁的繁殖分布中发现了显著的生态利基分歧的有限证据.
观察到对利基保护主义的强烈支持,以及在后代物种中划分利基的模式.
祖先的 *Progne* 拥有广泛的利基;后代物种经常占据这一祖先的利基的子集,广泛分布的物种如 *P. subis* 和 *P. chalybea* 的利基扩张有限.

结论:

利基保守主义似乎是一个主要的进化特征,在多样化像Progne这样的血统.
显而易见的利基差异可能来自于祖先环境的利基分区,而不是适应新条件.
这项研究强调,在密切相关的种类中,不同的生态利基可以从分割祖先资源中产生.

关键词:

一个祖先的利基重建.生态利基主义保守主义生态利基主义生态利基模型的建模.生态利基区分的划分生态利基区分子科 (Hirundinidae) 的一个家族.利基进化的发展.在 Progne Progne 的位置上.

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