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Relative importance of tree species richness, tree functional type, and microenvironment for soil macrofauna communities in European forests

Authors :
Lauren M. Gillespie
Thibaud Decaëns
Bart Muys
Pierre Ganault
Stephan Hättenschwiler
Janna Wambsganss
Johanne Nahmani
Christophe Mazzia
Luis Daniel Prada-Salcedo
Etienne Iorio
Jean-François David
Ludovic Henneron
Alain Pasquet
Centre d’Ecologie Fonctionnelle et Evolutive (CEFE)
Université Paul-Valéry - Montpellier 3 (UPVM)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École pratique des hautes études (EPHE)
Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)
Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE)
Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS)
Université Paul-Valéry - Montpellier 3 (UPVM)-École Pratique des Hautes Études (EPHE)
Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro
Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)
Source :
Oecologia, Oecologia, Springer Verlag, 2021, 196 (2), pp.455-468. ⟨10.1007/s00442-021-04931-w⟩, Oecologia, 2021, 196 (2), pp.455-468. ⟨10.1007/s00442-021-04931-w⟩
Publication Year :
2021
Publisher :
HAL CCSD, 2021.

Abstract

International audience; Soil fauna communities are major drivers of many forest ecosystem processes. Tree species diversity and composition shape soil fauna communities, but their relationships are poorly understood, notably whether or not soil fauna diversity depends on tree species diversity. Here, we characterized soil macrofauna communities from forests composed of either one or three tree species, located in four different climate zones and growing on different soil types. Using multivariate analysis and model averaging we investigated the relative importance of tree species richness, tree functional type (deciduous vs. evergreen), litter quality, microhabitat and microclimatic characteristics as drivers of soil macrofauna community composition and structure. We found that macrofauna communities in mixed forest stands were represented by a higher number of broad taxonomic groups that were more diverse and more evenly represented. We also observed a switch from earthworm-dominated to predator-dominated communities with increasing evergreen proportion in forest stands, which we interpreted as a result of a lower litter quality and a higher forest floor mass. Finally, canopy openness was positively related to detritivore abundance and biomass, leading to higher predator species richness and diversity probably through trophic cascade effects. Interestingly, considering different levels of taxonomic resolution in the analyses highlighted different facets of macrofauna response to tree species richness, likely a result of both different ecological niche range and methodological constraints. Overall, our study supports the positive effects of tree species richness on macrofauna diversity and abundance through multiple changes in resource quality and availability, microhabitat, and microclimate modifications.

Details

Language :
English
ISSN :
00298549 and 14321939
Database :
OpenAIRE
Journal :
Oecologia, Oecologia, Springer Verlag, 2021, 196 (2), pp.455-468. ⟨10.1007/s00442-021-04931-w⟩, Oecologia, 2021, 196 (2), pp.455-468. ⟨10.1007/s00442-021-04931-w⟩
Accession number :
edsair.doi.dedup.....53703bb83bedaf2aebe1bbc2c3377272
Full Text :
https://doi.org/10.1007/s00442-021-04931-w⟩