Different diversity mechanisms underlying drought resistance in native and invaded communities

IF 5.6 1区 环境科学与生态学 Q1 ECOLOGY
Wei-Kang Shen, Jiang Wu, Jing-Jing Gu, Xu-Jie Hong, Bai-Run Yang, Kai-Cheng Guan, Yang-Bing Hu, Zhi Sun, Song Gao, Qiao-Di Yan, Tong Chen, Jiang Wang, Xu Chen, Fei-Hai Yu
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引用次数: 0

Abstract

Abstract Image

原生和入侵群落抗旱性的多样性机制
全球生物多样性的下降和外来入侵植物的日益蔓延提出了一个关键问题,即本地物种多样性和生物入侵如何相互作用,影响群落对干扰的抵抗力,特别是全球气候变化。为了探究本地物种多样性和生物入侵对植物群落抗旱性的影响,我们建立了不同物种丰富度水平(1、2、4、8和16种)的实验植物群落,在其中一半的群落中引入入侵物种黄合霉(Symphyotrichum subulatum),然后对所有群落进行不干旱、中度干旱和强烈干旱处理。无论物种丰富度如何,原生群落和入侵群落的抗旱性与非干旱群落的生物量呈负相关。此外,没有干旱的群落生物量较低,根系:梢比的干旱增加较小,这反过来又赋予了更高的群落抗旱性。然而,原生和入侵群落的抗旱性机制存在差异:互补效应引发的生物量变化正决定了原生群落的抗旱性,而选择效应引发的生物量变化则决定了入侵群落的抗旱性。合成。这些发现揭示了不同的干旱抵抗机制在本地社区和那些入侵的s.a ullatum,为管理该物种在全球气候变化背景下的入侵提供了有价值的见解。
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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 We do not publish papers concerned solely with cultivated plants and agricultural ecosystems.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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