气候变化领域集成服务门户(CCPortal): Metapopulation capacity determines food chain length in fragmented landscapes

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DOI	10.1073/pnas.2102733118
	Metapopulation capacity determines food chain length in fragmented landscapes
	Wang S.; Brose U.; van Nouhuys S.; Holt R.D.; Loreau M.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:34
英文摘要	Metapopulation capacity provides an analytic tool to quantify the impact of landscape configuration on metapopulation persistence, which has proven powerful in biological conservation. Yet surprisingly few efforts have been made to apply this approach to multispecies systems. Here, we extend metapopulation capacity theory to predict the persistence of trophically interacting species. Our results demonstrate that metapopulation capacity could be used to predict the persistence of trophic systems such as prey–predator pairs and food chains in fragmented landscapes. In particular, we derive explicit predictions for food chain length as a function of metapopulation capacity, top-down control, and population dynamical parameters. Under certain assumptions, we show that the fraction of empty patches for the basal species provides a useful indicator to predict the length of food chains that a fragmented landscape can support and confirm this prediction for a host–parasitoid interaction. We further show that the impact of habitat changes on biodiversity can be predicted from changes in metapopulation capacity or approximately by changes in the fraction of empty patches. Our study provides an important step toward a spatially explicit theory of trophic metacommunities and a useful tool for predicting their responses to habitat changes. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Fragmentation; Habitat changes; Heterogeneous landscapes; Trophic interactions
语种	英语
scopus关键词	article; biodiversity; food chain; habitat; metapopulation; nonhuman; parasitoid; predator; prediction; theoretical study
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238820
作者单位	Institute of Ecology, Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China; EcoNetLab, German Centre for Integrative Biodiversity Research Halle-Jena-Leipzig, Leipzig, 04103, Germany; Institute of Biodiversity, Friedrich Schiller University Jena, Jena, 07743, Germany; Organismal and Evolutionary Biology Research Program, University of Helsinki, Helsinki, FI-00014, Finland; Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, United States; Department of Biology, University of Florida, Gainesville, FL 32611, United States; Theoretical and Experimental Ecology Station, CNRS, Moulis, 09200, France
推荐引用方式 GB/T 7714	Wang S.,Brose U.,van Nouhuys S.,et al. Metapopulation capacity determines food chain length in fragmented landscapes[J],2021,118(34).
APA	Wang S.,Brose U.,van Nouhuys S.,Holt R.D.,&Loreau M..(2021).Metapopulation capacity determines food chain length in fragmented landscapes.Proceedings of the National Academy of Sciences of the United States of America,118(34).
MLA	Wang S.,et al."Metapopulation capacity determines food chain length in fragmented landscapes".Proceedings of the National Academy of Sciences of the United States of America 118.34(2021).