Projets par an
Résumé
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.
langue originale | Anglais |
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Pages (de - à) | 1315-1324 |
Nombre de pages | 10 |
journal | Ecology Letters |
Volume | 20 |
Numéro de publication | 10 |
Les DOIs | |
Etat de la publication | Publié - 17 sept. 2017 |
Financement
This article is a joint effort of the working group sEcoToxDiv and an outcome of a workshop kindly supported by sDiv, the Synthesis Centre of the German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig (DFG FZT 118). This research used resources of the Plateforme Technologique de Calcul Intensif (PTCI) (http://www.ptci.unamur.be) located at the University of Namur, Belgium, which is supported by the FRS-FNRS under convention No 2.4520.11. The PTCI is member of the Consortium des \u00C9quipements de Calcul Inten-sif (C\u00C9CI) (http://www.ceci-hpc.be). J.M.B. is indebted to the Research Foundation Flanders (FWO) for his PhD research fellow grant (B/12958/01). J.R.R. was supported by grants from the National Science Foundation (EF-1241889), the National Institutes of Health (R01GM109499, R01TW010286), the US Department of Agriculture (NRI 2006-01370, 2009-35102-0543), and the US Environmental Protection Agency (CAREER 83518801). F.D.L. received support from grants of the University of Namur (FSR Impul-sionnel 48454E1), and the Fund for Scientific Research, FNRS (PDR T.0048.16). D.J.B would like to acknowledge support through the Discovery Grant program of the Natural Sciences and Engineering Research Council of Canada. F.P. was supported by the Swiss National Science Foundation (SNSF grant CRSII2_147654). We acknowledge the valuable input of three referees.
Bailleurs de fonds | Numéro du bailleur de fonds |
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National Institutes of Health | |
Natural Sciences and Engineering Research Council of Canada | |
Synthesis Centre of the German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig | |
Fogarty International Center | R01TW010286 |
Université de Namur | FSR Impul-sionnel 48454E1 |
United States Environmental Protection Agency | 83518801 |
Deutsche Forschungsgemeinschaft | 2.4520.11, FZT 118 |
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung | 147654, CRSII2_147654 |
National Science Foundation | EF-1241889 |
Fonds De La Recherche Scientifique - FNRS | PDR T.0048.16 |
Fonds Wetenschappelijk Onderzoek - Vlaanderen (FWO) | B/12958/01 |
U.S. Department of Agriculture | 2009-35102-0543, NRI 2006-01370 |
National Institute of General Medical Sciences | R01GM109499 |
Empreinte digitale
Examiner les sujets de recherche de « Shifts of community composition and population density substantially affect ecosystem function despite invariant richness ». Ensemble, ils forment une empreinte digitale unique.Projets
- 3 Terminé
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Coexistence, Stress, et le fonctionnement des écosystèmes Aquatiques
De Laender, F. (Responsable du Projet)
1/10/16 → 30/09/20
Projet: Recherche
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Phytoplankton diversity and ecosystem functioning along gradients of grazing and toxicity
De Laender, F. (Responsable du Projet) & KULKARNI, D. (Co-investigateur)
1/07/15 → 1/07/16
Projet: Recherche
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sEcoToxDiv: Workshop funded by the German Centre for Integrative Biodiversity Research (iDiv) to organize a workshop on “Ecotoxicology for B-EF research: designing novel multi-trophic B-EF experiments
De Laender, F. (Responsable du Projet) & Van den Brink, P. J. (Co-investigateur)
15/12/14 → 1/05/15
Projet: Recherche
Équipement
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Plateforme Technologique Calcul Intensif
Champagne, B. (!!Manager)
Plateforme technologique Calcul intensifEquipement/installations: Plateforme technolgique
Activités
- 1 Participation à une conférence, un congrès
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ECOSUMMIT 2016
De Laender, F. (Orateur invité)
2016 → …Activité: Participation ou organisation d'un événement › Participation à une conférence, un congrès