globalchange  > 气候减缓与适应
DOI: 10.1111/ele.12828
Scopus记录号: 2-s2.0-85029577319
论文题名:
Shifts of community composition and population density substantially affect ecosystem function despite invariant richness
作者: 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.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2017
卷: 20, 期:10
起始页码: 1315
结束页码: 1324
语种: 英语
英文关键词: Algae ; biodiversity ; coexistence ; community ecology ; modelling ; primary production
Scopus关键词: algae ; biodiversity ; ecosystem ; environmental protection ; phytoplankton ; population density ; Biodiversity ; Conservation of Natural Resources ; Ecosystem ; Phytoplankton ; Population Density
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
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107565
Appears in Collections:气候减缓与适应

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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, Germany; Department of Integrative Biology, University of South Florida, Tampa, FL, United States; Alterra, Wageningen University and Research centre, Wageningen, Netherlands; Department of Aquatic Ecology and Water Quality Management, Wageningen University, Wageningen, Netherlands

Recommended Citation:
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]. Ecology Letters,2017-01-01,20(10)
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