Fast attrition of springtail communities by experimental drought and richness-decomposition relationships across Europe
Peguero, Guille (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Sol, Daniel (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Arnedo, Miquel A (Universitat de Barcelona. Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals)
Petersen, Henning (Natural History Museum (Femmøller, Dinamarca))
Salmon, Sandrine (Muséum National d'Histoire Naturelle (Brunoy, França))
Ponge, Jean-François (Muséum National d'Histoire Naturelle (Brunoy, França))
Maspons, Joan (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Emmett, Bridget (Centre for Ecology and Hydrology (Bangor, Regne Unit))
Beier, Claus (University of Copenhagen. Department of Geosciences and Natural Resource Management)
Schmidt, Inger K. (University of Copenhagen. Department of Geosciences and Natural Resource Management)
Tietema, Albert (University of Amsterdam. Institute for Biodiversity and Ecosystem Dynamics)
De Angelis, Paolo (University of Tuscia. Department for Innovation in Biological, Agro-food and Forest Systems)
Kovács-Láng, Edit (Institute of Ecology and Botany (Vácrátót, Hungria))
Kröel-Dulay, György (Institute of Ecology and Botany (Vácrátót, Hungria))
Estiarte, Marc (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Bartrons Vilamala, Mireia (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Holmstrup, Martin (Aarhus University. Department of Bioscience)
Janssens, Ivan (University of Antwerp. Department of Biology)
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)

Data:	2019
Resum:	Soil fauna play a fundamental role on key ecosystem functions like organic matter decomposition, although how local assemblages are responding to climate change and whether these changes may have consequences to ecosystem functioning is less clear. Previous studies have revealed that a continued environmental stress may result in poorer communities by filtering out the most sensitive species. However, these experiments have rarely been applied to climate change factors combining multiyear and multisite standardized field treatments across climatically contrasting regions, which has limited drawing general conclusions. Moreover, other facets of biodiversity, such as functional and phylogenetic diversity, potentially more closely linked to ecosystem functioning, have been largely neglected. Here, we report that the abundance, species richness, phylogenetic diversity, and functional richness of springtails (Subclass Collembola), a major group of fungivores and detritivores, decreased within 4 years of experimental drought across six European shrublands. The loss of phylogenetic and functional richness was higher than expected by the loss of species richness, leading to communities of phylogenetically similar species sharing evolutionary conserved traits. Additionally, despite the great climatic differences among study sites, we found that taxonomic, phylogenetic, and functional richness of springtail communities alone were able to explain up to 30% of the variation in annual decomposition rates. Altogether, our results suggest that the forecasted reductions in precipitation associated with climate change may erode springtail communities and likely other drought-sensitive soil invertebrates, thereby retarding litter decomposition and nutrient cycling in ecosystems.
Ajuts:	European Commission 610028 Ministerio de Economía y Competitividad CGL2016-79835-P Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1005
Nota:	Altres ajuts: Ramon Areces Foundation. Grant Number BEVP27P01A3355
Drets:	Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.
Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Matèria:	Biodiversity-ecosystem functioning ; Climate change ; Collembola ; Drought ; Litter decomposition ; Shrublands ; Soil fauna
Publicat a:	Global change biology, Vol. 25, issue 8 (Aug. 2019) , p. 2727-2738, ISSN 1365-2486

DOI: 10.1111/gcb.14685
PMID: 31206913

Postprint 35 p, 1.2 MB

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