管理下的草地生产力与植物生物多样性之间的互惠关系较弱

IF 5.3 1区 环境科学与生态学 Q1 ECOLOGY Journal of Ecology Pub Date : 2024-08-23 DOI:10.1111/1365-2745.14400
Karl Andraczek, Laura E. Dee, Alexandra Weigelt, Judith Hinderling, Daniel Prati, Gaëtane Le Provost, Peter Manning, Christian Wirth, Fons van der Plas
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引用次数: 0

摘要

在管理草地的各项研究中,植物生物多样性与生产力之间的关系变化很大,部分原因是在单个时间点收集的观测数据中难以考虑混杂因素以及生物多样性与生产力之间的相互关系。要在这些挑战中确定因果效应,需要新的分析方法和重复观察,以确定效应的时间顺序。在一个生长季节内的多个时间点收集的数据虽然很少,但有助于区分生物多样性对生产力的影响,反之亦然。在这里,我们利用对 150 个管理草地进行的季节性草地调查,重复进行了两年的调查,并采用了生态学中相对较新的统计方法,旨在从观测数据中推断因果关系,从而加深对这一问题的理解。我们将我们的方法与生态学中常用的方法(即混合效应模型)以及仅使用生长季节中一个时间点的观测数据的分析方法进行了比较。我们发现,与我们的主要模型相比,混合模型高估了生物多样性对生产力的影响,高出两个标准误差。在生产力对生物多样性的影响方面,我们使用混合模型发现了负效应,这种负效应对生长季节内收集数据的时间非常敏感。相比之下,我们的主要模型没有发现任何影响证据。传统模型高估了生物多样性和生产力之间的影响,这可能是由于混杂变量造成的。综述。了解生物多样性与生产力之间的关系是生态学的一个焦点话题,但揭示它们之间的相互关系仍具有挑战性。我们展示了更高分辨率的纵向数据以及控制更多混杂变量的方法可用于解决相互关系。我们强调了未来的数据需求和方法,它们可以帮助我们解决生物多样性与生产力之间的关系,这对于调和生态学中长期存在的争论以及最终了解生物多样性和生态系统功能如何应对全球变化至关重要。
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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Weak reciprocal relationships between productivity and plant biodiversity in managed grasslands

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来源期刊
Journal of Ecology
Journal of Ecology 环境科学-生态学
CiteScore
10.90
自引率
5.50%
发文量
207
审稿时长
3.0 months
期刊介绍: Journal of Ecology publishes original research papers on all aspects of the ecology of plants (including algae), in both aquatic and terrestrial ecosystems. We do not publish papers concerned solely with cultivated plants and agricultural ecosystems. Studies of plant communities, populations or individual species are accepted, as well as studies of the interactions between plants and animals, fungi or bacteria, providing they focus on the ecology of the plants. We aim to bring important work using any ecological approach (including molecular techniques) to a wide international audience and therefore only publish papers with strong and ecological messages that advance our understanding of ecological principles.
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