气候变化领域集成服务门户(CCPortal): A simple model predicts how warming simplifies wild food webs

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DOI	10.1038/s41558-019-0513-x
	A simple model predicts how warming simplifies wild food webs
	O’Gorman E.J.; Petchey O.L.; Faulkner K.J.; Gallo B.; Gordon T.A.C.; Neto-Cerejeira J.; Ólafsson J.S.; Pichler D.E.; Thompson M.S.A.; Woodward G.
发表日期	2019
ISSN	1758678X
EISSN	1758-6798
卷号	9 期号:8 页码:611-+
英文摘要	Warming increases the metabolic demand of consumers1, strengthening their feeding interactions2. This could alter energy fluxes3–5 and even amplify extinction rates within the food web6–8. Such effects could simplify the structure and dynamics of ecological networks9,10, although an empirical test in natural systems has been lacking. Here, we tested this hypothesis by characterizing around 50,000 directly observed feeding interactions across 14 naturally heated stream ecosystems11–15. We found that higher temperature simplified food-web structure and shortened the pathways of energy flux between consumers and resources. A simple allometric diet breadth model10,16 predicted 68–82% of feeding interactions and the effects of warming on key food-web properties. We used model simulations to identify the underlying mechanism as a change in the relative diversity and abundance of consumers and their resources. This model shows how warming can reduce the stability of aquatic ecosystems by eroding the structural integrity of the food web. Given these fundamental drivers, such responses are expected to be manifested more broadly and could be predicted using our modelling framework and knowledge of how warming alters some routinely measured characteristics of organisms. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/101064
作者单位	School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, United Kingdom; Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland; School of Life Sciences, Gibbet Hill Campus, University of Warwick, Coventry, United Kingdom; Department of Life Sciences, Imperial College London, Silwood Park Campus, Ascot, United Kingdom; Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, United Kingdom; Marine and Freshwater Research Institute, Reykjavík, Iceland; Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, United Kingdom
推荐引用方式 GB/T 7714	O’Gorman E.J.,Petchey O.L.,Faulkner K.J.,et al. A simple model predicts how warming simplifies wild food webs[J],2019,9(8):611-+.
APA	O’Gorman E.J..,Petchey O.L..,Faulkner K.J..,Gallo B..,Gordon T.A.C..,...&Woodward G..(2019).A simple model predicts how warming simplifies wild food webs.Nature Climate Change,9(8),611-+.
MLA	O’Gorman E.J.,et al."A simple model predicts how warming simplifies wild food webs".Nature Climate Change 9.8(2019):611-+.