Multiple-stressor effects on leaf litter decomposition in freshwater ecosystems: A meta-analysis

IF 4.6 1区环境科学与生态学 Q1 ECOLOGY

Functional Ecology Pub Date : 2024-05-09 DOI:10.1111/1365-2435.14571

Graciela Medina Madariaga, Verónica Ferreira, Roshni Arora, India Mansour, Gwendoline M. David, Sonja C. Jähnig, Fengzhi He

引用次数: 0

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多重压力对淡水生态系统落叶分解的影响：荟萃分析

近年来，有关淡水生态系统多重压力影响的研究激增。虽然研究有所增加，但如何将研究结果综合起来，使人们对生态系统层面的影响有更广泛的了解，仍是一项持续的工作。枯落叶分解是淡水生态系统中一项经常被研究的关键功能，它对非生物条件和生物群落的变化非常敏感，因此很容易受到多重压力的影响。在此，我们综合了 27 项操作性实验研究的结果，其中包括 61 种枯落叶分解对淡水生态系统中气候变暖、营养富集和新出现的污染物等成对压力因素的反应。我们计算了两种压力同时发生时产生的个体和整体交互效应大小。此外，我们还采用元分析方法分析了调节变量对交互作用效应大小和方向的影响。尽管计票法显示加性交互作用在个体观测结果中占主导地位（91.8%），但加权随机效应荟萃分析显示压力因子之间存在整体拮抗交互作用（即配对压力因子对垃圾分解的累积效应小于其单一效应之和）。我们的结果强调了实验特征的影响，如大型无脊椎动物的参与、栖息地类型（湖泊与地块）和垃圾质量（根据植物菌根关联推测）在形成垃圾分解对多重压力因子的反应方面的影响。我们的荟萃分析突出表明，有必要在操纵实验中纳入当地生态的复杂性，以改进多重胁迫对生物多样性和生态系统功能影响的预测。本研究强调了在保护和恢复行动中考虑生物相互作用和采用元群落框架的重要性，以便在全球快速变化的时代支持淡水生态系统的管理。在期刊博客上免费阅读本文的通俗摘要。

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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.