局部同种密度效应对植物多样性和群落动态的影响

IF 7.6 1区 环境科学与生态学 Q1 ECOLOGY Ecology Letters Pub Date : 2024-10-02 DOI:10.1111/ele.14506
Joseph A. LaManna, Florian Hartig, Jonathan A. Myers, Robert P. Freckleton, Matteo Detto, Akshay Surendra, Cole J. Doolittle, Bénédicte Bachelot, Robert Bagchi, Liza S. Comita, David M. DeFilippis, Nohemi Huanca-Nunez, Lisa Hülsmann, Fiona V. Jevon, Daniel J. Johnson, Meghna Krishnadas, Lukas J. Magee, Scott A. Mangan, Valerie R. Milici, Aimé Lucky Barahebuza Murengera, Stefan A. Schnitzer, Daniel J. B. Smith, Claudia Stein, Megan K. Sullivan, Ethan Torres, María Natalia Umaña, Camille S. Delavaux
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引用次数: 0

摘要

植物种群中的同种密度依赖性(CDD)非常普遍,很可能是由局部尺度的生物相互作用引起的,对生物多样性、群落组成和生态系统过程具有潜在的重要影响。然而,由于生态学各子领域对 CDD 的观点不一,缺乏 CDD 相关框架的综合,以及对局部 CDD 的实证测量如何与更广泛的群落组合和多样性维持生态理论相适应存在误解,阻碍了这一重要生态学领域的研究进展。在此,我们提出了关于局部尺度 CDD 及其成因(包括物种特异性拮抗和互利相互作用)的概念综合。首先,我们比较并阐明了 CDD 及其相关概念在生态学各子领域的不同用途。我们建议使用局部稳定/不稳定CDD来指局部同种密度效应比异种密度效应更消极/积极的情况。其次,我们讨论了局部稳定和不稳定 CDD 的不同机制,这些机制如何相互关联,以及它们如何贯穿生态学的多个研究领域。第三,我们将局部稳定化/不稳定化CDD置于更广泛的生态学理论背景下,并讨论与扩大局部CDD对种群、群落和元群落的影响有关的影响和挑战。本综述的最终目的是为研究本地 CDD 及其对种群和群落动态影响的研究人员提供一个概念路线图。
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Consequences of Local Conspecific Density Effects for Plant Diversity and Community Dynamics

Conspecific density dependence (CDD) in plant populations is widespread, most likely caused by local-scale biotic interactions, and has potentially important implications for biodiversity, community composition, and ecosystem processes. However, progress in this important area of ecology has been hindered by differing viewpoints on CDD across subfields in ecology, lack of synthesis across CDD-related frameworks, and misunderstandings about how empirical measurements of local CDD fit within the context of broader ecological theories on community assembly and diversity maintenance. Here, we propose a conceptual synthesis of local-scale CDD and its causes, including species-specific antagonistic and mutualistic interactions. First, we compare and clarify different uses of CDD and related concepts across subfields within ecology. We suggest the use of local stabilizing/destabilizing CDD to refer to the scenario where local conspecific density effects are more negative/positive than heterospecific effects. Second, we discuss different mechanisms for local stabilizing and destabilizing CDD, how those mechanisms are interrelated, and how they cut across several fields of study within ecology. Third, we place local stabilizing/destabilizing CDD within the context of broader ecological theories and discuss implications and challenges related to scaling up the effects of local CDD on populations, communities, and metacommunities. The ultimate goal of this synthesis is to provide a conceptual roadmap for researchers studying local CDD and its implications for population and community dynamics.

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来源期刊
Ecology Letters
Ecology Letters 环境科学-生态学
CiteScore
17.60
自引率
3.40%
发文量
201
审稿时长
1.8 months
期刊介绍: Ecology Letters serves as a platform for the rapid publication of innovative research in ecology. It considers manuscripts across all taxa, biomes, and geographic regions, prioritizing papers that investigate clearly stated hypotheses. The journal publishes concise papers of high originality and general interest, contributing to new developments in ecology. Purely descriptive papers and those that only confirm or extend previous results are discouraged.
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