Heritable intraspecific variation among prey in size and movement interact to shape predation risk and potential natural selection

IF 4.6 1区环境科学与生态学 Q1 ECOLOGY

Functional Ecology Pub Date : 2024-08-27 DOI:10.1111/1365-2435.14644

Kyle E. Coblentz, Liuqingqing Yang, Arpita Dalal, Miyauna M. N. Incarnato, Dinelka D. Thilakarathne, Cameron Shaw, Ryan Wilson, Francis Biagioli, Kristi L. Montooth, John P. DeLong

引用次数: 0

Abstract

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猎物在体型和运动方面的种内遗传变异相互作用，形成捕食风险和潜在的自然选择

捕食者和猎物的特征是营养相互作用结果的重要决定因素。反过来，营养相互作用的结果也会影响捕食者和猎物性状的进化。物种的性状如何对营养相互作用的选择做出反应，关键取决于物种的性状是否具有遗传性以及遗传相关性有多大。在影响营养相互作用结果的许多性状中，体型和运动性状已成为关键性状。然而，这些性状如何影响营养互作以及如何被营养互作所影响尚不清楚，因为很少有研究同时测量这些性状对营养互作结果的影响、它们的遗传率以及它们在同一系统中的相关性。我们利用来自自然种群的纤毛虫原生动物尾柱虫的外交品系，研究了其形态和运动行为的变异、这种变异的遗传性及其对尾柱虫易受桡足类白腹大环虫捕食的影响。我们发现，鹦鹉螺品系在体型和运动特征方面表现出遗传变异。与异速关系的预期不同，体型和移动速度在不同品系之间几乎没有协方差。桡足类捕食的副裙带菜比例与副裙带菜的体型和速度呈正相关，但两者之间存在相互作用，速度越快，体型大的副裙带菜被捕食的风险越大，但对体型较小的副裙带菜而言，捕食风险并无改变。被捕食的鹦鹉螺比例与桡足类的体型大小无关。这些捕食风险模式和鹦鹉螺的遗传性状变异表明，桡足类的捕食可能是一种独立于运动和体型的选择性力量，对大型、高速鹦鹉螺产生最强的选择。我们的研究结果说明了生态学和遗传学是如何通过营养相互作用的结果来形成对猎物特征的潜在自然选择的。进一步同时测量捕食结果、性状及其定量遗传学将有助于深入了解物种相互作用的进化生态学及其生态进化后果。在期刊博客上免费阅读本文的通俗摘要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Functional Ecology 环境科学-生态学

CiteScore

9.00

自引率

1.90%

发文量

243

审稿时长

4 months

期刊介绍： Functional Ecology publishes high-impact papers that enable a mechanistic understanding of ecological pattern and process from the organismic to the ecosystem scale. Because of the multifaceted nature of this challenge, papers can be based on a wide range of approaches. Thus, manuscripts may vary from physiological, genetics, life-history, and behavioural perspectives for organismal studies to community and biogeochemical studies when the goal is to understand ecosystem and larger scale ecological phenomena. We believe that the diverse nature of our journal is a strength, not a weakness, and we are open-minded about the variety of data, research approaches and types of studies that we publish. Certain key areas will continue to be emphasized: studies that integrate genomics with ecology, studies that examine how key aspects of physiology (e.g., stress) impact the ecology of animals and plants, or vice versa, and how evolution shapes interactions among function and ecological traits. Ecology has increasingly moved towards the realization that organismal traits and activities are vital for understanding community dynamics and ecosystem processes, particularly in response to the rapid global changes occurring in earth’s environment, and Functional Ecology aims to publish such integrative papers.