Dispersal stabilizes coupled ecological and evolutionary dynamics in a host-parasitoid system

IF 45.8 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Pub Date : 2024-03-14 DOI:10.1126/science.adg4602

Lucas A. Nell, Miriam Kishinevsky, Michael J. Bosch, Calvin Sinclair, Karuna Bhat, Nathan Ernst, Hamze Boulaleh, Kerry M. Oliver, Anthony R. Ives

引用次数: 0

Abstract

When ecological and evolutionary dynamics occur on comparable timescales, persistence of the ensuing eco-evolutionary dynamics requires both ecological and evolutionary stability. This unites key questions in ecology and evolution: How do species coexist, and what maintains genetic variation in a population? In this work, we investigated a host-parasitoid system in which pea aphid hosts rapidly evolve resistance to Aphidius ervi parasitoids. Field data and mathematical simulations showed that heterogeneity in parasitoid dispersal can generate variation in parasitism-mediated selection on hosts through time and space. Experiments showed how evolutionary trade-offs plus moderate host dispersal across this selection mosaic cause host-parasitoid coexistence and maintenance of genetic variation in host resistance. Our results show how dispersal can stabilize both the ecological and evolutionary components of eco-evolutionary dynamics.

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传播稳定了宿主-寄生虫系统中的生态和进化耦合动态。

当生态动态和进化动态发生在相当的时间尺度上时，随之而来的生态进化动态的持续性需要生态和进化的稳定性。这将生态学和进化论中的关键问题结合在一起：物种如何共存？是什么维持了种群的遗传变异？在这项工作中，我们研究了一个寄主-寄生虫系统，在这个系统中，豌豆蚜寄主迅速进化出对蚜虫寄生虫的抗性。田间数据和数学模拟表明，寄生虫传播的异质性会导致寄生虫介导的宿主选择在时间和空间上的变化。实验表明，进化权衡加上寄主在这种选择镶嵌中的适度扩散，如何导致寄主与寄生虫共存，并维持寄主抗性的遗传变异。我们的研究结果表明了分散如何稳定生态进化动态中的生态和进化部分。

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

Science 综合性期刊-综合性期刊

CiteScore

61.10

自引率

0.90%

发文量

审稿时长

2.1 months

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