Résumé
Three decades of research have demonstrated that biodiversity can promote the functioning of ecosystems. Yet, it is unclear whether the positive effects of biodiversity on ecosystem functioning will persist under various types of global environmental change drivers. We conducted a meta-analysis of 46 factorial experiments manipulating both species richness and the environment to test how global change drivers (i.e. warming, drought, nutrient addition or CO2 enrichment) modulated the effect of biodiversity on multiple ecosystem functions across three taxonomic groups (microbes, phytoplankton and plants). We found that biodiversity increased ecosystem functioning in both ambient and manipulated environments, but often not to the same degree. In particular, biodiversity effects on ecosystem functioning were larger in stressful environments induced by global change drivers, indicating that high-diversity communities were more resistant to environmental change. Using a subset of studies, we also found that the positive effects of biodiversity were mainly driven by interspecific complementarity and that these effects increased over time in both ambient and manipulated environments. Our findings support biodiversity conservation as a key strategy for sustainable ecosystem management in the face of global environmental change.
langue originale | Anglais |
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Pages (de - à) | 555-569 |
Nombre de pages | 15 |
journal | Ecology Letters |
Volume | 25 |
Numéro de publication | 2 |
Les DOIs | |
Etat de la publication | Publié - févr. 2022 |
Financement
We thank Julia Koricheva and Maowei Liang for helpful discussions. Comments by three anonymous reviewers and the editor helped to improve the manuscript. This work was supported by the National Natural Science Foundation of China (31988102, 32122053, 31870505) and the CAS Interdisciplinary Innovation Team (JCTD-2018-06). B.S. was supported by the University Research Priority Program Global Change and Biodiversity of the University of Zurich. F.D.L. received support from the Fund for Scientific Research, FNRS (PDR T.0048.16). N.E. acknowledges support by the German Centre for Integrative Biodiversity Research Halle-Jena-Leipzig, funded by the German Research Foundation (FZT 118). D.C. acknowledges support by the Chilean Fondo Nacional de Desarrollo Cient?fico y Tecnol?gico (Fondecyt No. 1201347). The contribution of P.R. was supported by the U.S. NSF Biological Integration Institutes grant DBI-2021898. We thank Julia Koricheva and Maowei Liang for helpful discussions. Comments by three anonymous reviewers and the editor helped to improve the manuscript. This work was supported by the National Natural Science Foundation of China (31988102, 32122053, 31870505) and the CAS Interdisciplinary Innovation Team (JCTD\u20102018\u201006). B.S. was supported by the University Research Priority Program Global Change and Biodiversity of the University of Zurich. F.D.L. received support from the Fund for Scientific Research, FNRS (PDR T.0048.16). N.E. acknowledges support by the German Centre for Integrative Biodiversity Research Halle\u2010Jena\u2010Leipzig, funded by the German Research Foundation (FZT 118). D.C. acknowledges support by the Chilean Fondo Nacional de Desarrollo Cient\u00EDfico y Tecnol\u00F3gico (Fondecyt No. 1201347). The contribution of P.R. was supported by the U.S. NSF Biological Integration Institutes grant DBI\u20102021898.
Bailleurs de fonds | Numéro du bailleur de fonds |
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German Centre for Integrative Biodiversity Research Halle-Jena-Leipzig | |
University of Zurich | |
German Centre for Integrative Biodiversity Research Halle‐Jena‐Leipzig | |
National Science Foundation | 2021898 |
Deutsche Forschungsgemeinschaft | FZT 118 |
Fonds De La Recherche Scientifique - FNRS | PDR T.0048.16 |
National Natural Science Foundation of China | 32122053, 31988102, 31870505 |
Chinese Academy of Sciences | JCTD‐2018‐06 |
Fondo Nacional de Desarrollo Científico y Tecnológico | 1201347 |