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Carabid activity‐density increases with forest vegetation diversity at different spatial scales

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorJOUVEAU, Séverin
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorTOIGO, Maude
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorGIFFARD, Brice
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorCASTAGNEYROL, Bastien
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorVAN HALDER, Inge
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorVETILLARD, Fabrice
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorJACTEL, Herve
dc.date.issued2019
dc.description.abstractEnMore diverse forests are generally more resistant to insect herbivores. This might be due to positive effects of tree diversity on predation. Although the enemies hypothesis has received conflicting evidence in forest ecosystems. Carabids were sampled by pitfall trapping in a tree diversity experiment, at the centre of plots ranging from one to five tree species mixtures. The composition and vertical structure of the vegetation was assessed at three scales, in the understorey, in the canopy of the experimental plots, and in the surrounding area of each plot. None of the tested vegetation variables had an effect on the species richness of carabids. In contrast, the vegetation compositional diversity at the understorey, canopy and surrounding scales had additive and positive effects on the activity-density of the carabids. Our findings indicate that more diverse forests can host a higher activity-density of predatory carabids, as a result of the combined effect of horizontal and vertical vegetation diversity, which might increase both habitat quality and the amount of feeding resources. This highlights the relevance of manipulative tree diversity experiments to identify the ecological filters shaping local carabid communities.
dc.language.isoen
dc.publisherWiley-Blackwell
dc.title.enCarabid activity‐density increases with forest vegetation diversity at different spatial scales
dc.typeArticle de revue
dc.identifier.doi10.1111/icad.12372
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences de l'environnement
bordeaux.journalInsect conservation and diversity
bordeaux.volumeonline first
bordeaux.peerReviewedoui
hal.identifierhal-02622327
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02622327v1
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