globalchange  > 气候减缓与适应
DOI: 10.1111/ele.12582
Scopus记录号: 2-s2.0-84959449329
论文题名:
Biodiversity and ecosystem stability across scales in metacommunities
作者: Wang S.; Loreau M.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2016
卷: 19, 期:5
起始页码: 510
结束页码: 518
语种: 英语
英文关键词: Biodiversity loss ; Biotic homogenisation ; Diversity-stability relationship ; Effective number of species ; Environmental homogenisation ; Metacommunity ; Scale ; Variability
Scopus关键词: biodiversity ; biological model ; biota ; ecosystem ; environment ; physiology ; Biodiversity ; Biota ; Ecosystem ; Environment ; Models, Biological
英文摘要: Although diversity-stability relationships have been extensively studied in local ecosystems, the global biodiversity crisis calls for an improved understanding of these relationships in a spatial context. Here, we use a dynamical model of competitive metacommunities to study the relationships between species diversity and ecosystem variability across scales. We derive analytic relationships under a limiting case; these results are extended to more general cases with numerical simulations. Our model shows that, while alpha diversity decreases local ecosystem variability, beta diversity generally contributes to increasing spatial asynchrony among local ecosystems. Consequently, both alpha and beta diversity provide stabilising effects for regional ecosystems, through local and spatial insurance effects respectively. We further show that at the regional scale, the stabilising effect of biodiversity increases as spatial environmental correlation increases. Our findings have important implications for understanding the interactive effects of global environmental changes (e.g. environmental homogenisation) and biodiversity loss on ecosystem sustainability at large scales. © 2016 John Wiley & Sons Ltd/CNRS.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107770
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作者单位: Centre for Biodiversity Theory and Modelling, Station d'Ecologie Expérimentale du CNRS, Moulis, France

Recommended Citation:
Wang S.,Loreau M.. Biodiversity and ecosystem stability across scales in metacommunities[J]. Ecology Letters,2016-01-01,19(5)
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