气候变化领域集成服务门户(CCPortal): Shifts of community composition and population density substantially affect ecosystem function despite invariant richness

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DOI	10.1111/ele.12828
	Shifts of community composition and population density substantially affect ecosystem function despite invariant richness
	Spaak J.W.; Baert J.M.; Baird D.J.; Eisenhauer N.; Maltby L.; Pomati F.; Radchuk V.; Rohr J.R.; Van den Brink P.J.; De Laender F.
发表日期	2017
ISSN	1461-023X
EISSN	1461-0248
卷号	20 期号:10
英文摘要	There has been considerable focus on the impacts of environmental change on ecosystem function arising from changes in species richness. However, environmental change may affect ecosystem function without affecting richness, most notably by affecting population densities and community composition. Using a theoretical model, we find that, despite invariant richness, (1) small environmental effects may already lead to a collapse of function; (2) competitive strength may be a less important determinant of ecosystem function change than the selectivity of the environmental change driver and (3) effects on ecosystem function increase when effects on composition are larger. We also present a complementary statistical analysis of 13 data sets of phytoplankton and periphyton communities exposed to chemical stressors and show that effects on primary production under invariant richness ranged from −75% to +10%. We conclude that environmental protection goals relying on measures of richness could underestimate ecological impacts of environmental change. © 2017 The Authors Ecology Letters published by CNRS and John Wiley & Sons Ltd
英文关键词	Algae; biodiversity; coexistence; community ecology; modelling; primary production
学科领域	algae; biodiversity; ecosystem; environmental protection; phytoplankton; population density; Biodiversity; Conservation of Natural Resources; Ecosystem; Phytoplankton; Population Density
语种	英语
scopus关键词	algae; biodiversity; ecosystem; environmental protection; phytoplankton; population density; Biodiversity; Conservation of Natural Resources; Ecosystem; Phytoplankton; Population Density
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118329
作者单位	Research Unit in Environmental and Evolutionary Biology, University of Namur, Namur, Belgium; Department of Aquatic Ecology, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland; Behavioural Ecology and Ecophysiology Group, Department of Biology, University of Antwerp, Antwerp, Belgium; Terrestrial Ecology Unit, Department of Biology, University of Ghent, Ghent, Belgium; Department of Biology, Environment & Climate Change Canada at Canadian Rivers Institute, University of New Brunswick, New Brunswick, Canada; Institute of Biology, Leipzig University, Leipzig, Germany; German Centre for Integrative Biodiversity Research (iDiv), Leipzig, Germany; Department of Animal and Plant Sciences, The University of Sheffield, Sheffield, United Kingdom; Department of Evolutionary Genetics, Leibniz Institute for Zoo and Wildlife Research (IZW), Alfred-Kowalke Strasse 17, Berlin, 10315, Germany; Department of Integrative Biology, University of South Florida, Tampa, FL, United States; A...
推荐引用方式 GB/T 7714	Spaak J.W.,Baert J.M.,Baird D.J.,et al. Shifts of community composition and population density substantially affect ecosystem function despite invariant richness[J],2017,20(10).
APA	Spaak J.W..,Baert J.M..,Baird D.J..,Eisenhauer N..,Maltby L..,...&De Laender F..(2017).Shifts of community composition and population density substantially affect ecosystem function despite invariant richness.Ecology Letters,20(10).
MLA	Spaak J.W.,et al."Shifts of community composition and population density substantially affect ecosystem function despite invariant richness".Ecology Letters 20.10(2017).