Quantifying direct and indirect effects of early-season herbivory on reproduction across four brassicaceous plant species

IF 4.6 1区环境科学与生态学 Q1 ECOLOGY

Functional Ecology Pub Date : 2024-05-15 DOI:10.1111/1365-2435.14576

Daan Mertens, Jacob C. Douma, Bram B. J. Kamps, Yunsheng Zhu, Sophie A. Zwartsenberg, Erik H. Poelman

引用次数: 0

Abstract

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量化早季食草动物对四种黄铜类植物繁殖的直接和间接影响

昆虫食草动物可以通过取食生殖组织直接影响植物的繁殖，也可以通过取食植物无法补偿的植被组织间接影响植物的繁殖。此外，早期到达的食草动物可能会改变后期到达的群落，从而对植物的繁殖产生连带影响。然而，人们对植物发育与食草动物群落组合之间的动态相互作用仍缺乏深入研究。因此，目前还不清楚植物生长早期非爆发水平的环境食草动物是否会影响植物的适应性，也不清楚这些影响在多大程度上是通过植物生长和后续食草动物的变化而介导的。通过在一项围栏实验中排除食草动物群落，以及在一项普通花园田间试验中操纵早季食草动物，我们测试了毛虫（Pieris rapae）或蚜虫（Myzus persicae）的早季食草是否会影响植物的发育、繁殖以及与单株植物相关的食草动物群落。此外，我们还测试了一个因果假设，以评估食草动物群落的变化与植物生长发育的变化在决定植物繁殖方面的相对重要性和时间上的相互作用。然而，我们在田间试验中没有发现这种影响。探索性路径分析表明，植物生长发育的变化最能预测植物繁殖的变化，能解释种子产量总影响的 80%。这表明早季食草动物对植物后期发育的影响有限，植物能够减轻早季食草动物的影响。虽然早季食草动物有可能通过改变植物的发育或相关群落的后续发展来影响植物的繁殖，但这些影响很小，而且在近缘物种之间存在差异。这表明，早季食草动物通过植物或群落介导的对繁殖的影响，可能使植物物种面临不同程度的自然选择。

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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.