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气候和寄生虫压力共同塑造了社会寄生虫和其宿主之间的共同进化中介的特征

Erwann Collin¹, Maide Nesibe Macit², Marti Wittke¹

¹Institute of Organismic and Molecular Evolution, Johannes Gutenberg University Mainz, Germany.

Journal of evolutionary biology

|November 3, 2025

概括

气候显著影响宿主-寄生虫共同进化的动态. 这项研究揭示了当地气候如何影响的行为和化学防御,证明了它们在宿主-寄生虫相互作用中适应环境压力.

科学领域:

生态学和进化生物学
行为生态学行为生态学
化学生态化学生态学

背景情况:

主体-寄生虫关系在进化生物学中至关重要,通常是由共同进化的"军备竞赛"驱动的.
了解这些动态需要将气候等非生物因素与生物相互作用整合起来.
气候变化需要更深入地了解环境条件如何影响物种相互作用.

研究的目的:

调查当地气候和寄生虫患病率对寄生虫Temnothorax americanus及其宿主Temnothorax longispinosus的行为和皮质碳化合物 (CHC) 特征的相互作用.
为了确定观察到的特征变异是由于进化适应或表型可塑性.

主要方法:

分析来自不同气候区域的宿主和寄生虫之间的行为相互作用 (侵略,繁殖回收).
气色谱-质谱 (GC-MS) 用于分析皮质碳化合物概况.
控制的实验室条件,以区分适应性和可塑性.

主要成果:

行为相互作用与当地气候的相关性比寄生虫患病率更强.
来自更温暖,更干燥的气候地区的宿主表现出较低的侵略性,并逃离了寄生虫的遭遇,而这些地区的寄生虫更具侵略性.
对于敌人识别至关重要的状碳化合物与当地气候和两种物种寄生虫的流行有关.

结论:

无生物 (气候) 和生物 (寄生虫流行) 因素都在塑造宿主-寄生虫系统中的共同演变特征方面至关重要.
观察到的表型特征归因于进化适应,而不是表型可塑性.
气候可以在共同进化动态中带来意想不到的模式,这凸显了综合分析的必要性.

关键词:

生物气候梯度的生物气候梯度气候气候气候气候气候气候气候气候气候共同进化的军备竞赛.巢同伴的识别识别它们是社会寄生虫.

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