MORIN, Xavier; FAHSE, Lorenz; JACTEL, Herve; SCHERER-LORENZEN, Michael; GARCÍA-VALDÉS, Raúl; BUGMANN, Harald

doi:10.1038/s41598-018-23763-y

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Licence d’utilisation du document

MORIN, Xavier
Centre d’Ecologie Fonctionnelle et Evolutive [CEFE]
Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] [ETH Zürich]

FAHSE, Lorenz
Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] [ETH Zürich]
University of Koblenz-Landau

JACTEL, Herve
Biodiversité, Gènes & Communautés [BioGeCo]

Langue

Article de revue

Ce document a été publié dans

Scientific Reports. 2018, vol. 8, n° 1, p. 1-12

Nature Publishing Group

Résumé en anglais

Climate change affects ecosystem functioning directly through impacts on plant physiology, resulting in changes of global productivity. However, climate change has also an indirect impact on ecosystems, through changes in the composition and diversity of plant communities. The relative importance of these direct and indirect effects has not been evaluated within a same generic approach yet. Here we took advantage of a novel approach for disentangling these two effects in European temperate forests across a large climatic gradient, through a large simulation-based study using a forest succession model. We first showed that if productivity positively correlates with realized tree species richness under a changed climate, indirect effects appear pivotal to understand the magnitude of climate change impacts on forest productivity. We further detailed how warmer and drier conditions may affect the diversity-productivity relationships (DPRs) of temperate forests in the long term, mostly through effects on species recruitment, ultimately enhancing or preventing complementarity in resource use. Furthermore, losing key species reduced the strength of DPRs more severely in environments that are becoming climatically harsher. By disentangling direct and indirect effects of climate change on ecosystem functioning, these findings explain why high-diversity forests are expected to be more resilient to climate change.< Réduire

DOI

http://dx.doi.org/10.1038/s41598-018-23763-y

Project ANR

Impact des changements globaux sur la biodiversité et la productivité des forêts alpines - ANR-11-PDOC-0030
Conservation en Europe pour le 20ème siècle - ANR-12-EBID-0005

Origine

Importé de hal

Unités de recherche

BioGeCo (Biodiversité Gènes & Communautés) - UMR 1202