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Climate affects neighbour-induced changes in leaf chemical defences and tree diversity-herbivory relationships

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPOEYDEBAT, Charlotte
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorJACTEL, Hervé
hal.structure.identifierMision Biologica de Galicia [MBG]
dc.contributor.authorMOREIRA, Xoaquín
hal.structure.identifierRoyal Holloway [University of London] [RHUL]
dc.contributor.authorKORICHEVA, Julia
hal.structure.identifierAlice Holt Lodge
dc.contributor.authorBARSOUM, Nadia
hal.structure.identifierUniversity of Freiburg [Freiburg]
dc.contributor.authorBAUHUS, Jürgen
hal.structure.identifierGerman Centre for Integrative Biodiversity Research [iDiv]
dc.contributor.authorEISENHAUER, Nico
hal.structure.identifierGerman Centre for Integrative Biodiversity Research [iDiv]
dc.contributor.authorFERLIAN, Olga
hal.structure.identifierMision Biologica de Galicia [MBG]
dc.contributor.authorFRANCISCO, Marta
hal.structure.identifierGerman Centre for Integrative Biodiversity Research [iDiv]
dc.contributor.authorGOTTSCHALL, Felix
hal.structure.identifierUniversité de Sherbrooke [UdeS]
dc.contributor.authorGRAVEL, Dominique
hal.structure.identifierNorthern Research Station
dc.contributor.authorMASON, Bill
hal.structure.identifierRoyal Holloway [University of London] [RHUL]
dc.contributor.authorMUIRURI, Evalyne
hal.structure.identifierCatholic University of Leuven = Katholieke Universiteit Leuven [KU Leuven]
dc.contributor.authorMUYS, Bart
hal.structure.identifierUniversity of Alberta
dc.contributor.authorNOCK, Charles
hal.structure.identifierUniversité du Québec à Montréal = University of Québec in Montréal [UQAM]
dc.contributor.authorPAQUETTE, Alain
hal.structure.identifierUniversité Catholique de Louvain = Catholic University of Louvain [UCL]
dc.contributor.authorPONETTE, Quentin
hal.structure.identifierUniversity of Freiburg [Freiburg]
dc.contributor.authorSCHERER-LORENZEN, Michael
hal.structure.identifierNorthern Research Station
dc.contributor.authorSTOKES, Victoria
hal.structure.identifierUniversity of Freiburg [Freiburg]
dc.contributor.authorSTAAB, Michael
hal.structure.identifierUniversiteit Gent = Ghent University [UGENT]
dc.contributor.authorVERHEYEN, Kris
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorCASTAGNEYROL, Bastien
dc.date2020
dc.date.issued2020
dc.identifier.issn0269-8463
dc.description.abstractEn1.Associational resistance theory predicts that insect herbivory decreases with increasing tree diversity in forest ecosystems. However, the generality of this effect and its underlying mechanisms are still debated, particularly since evidence has accumulated that climate may influence the direction and strength of the relationship between diversity and herbivory. 2.We quantified insect leaf herbivory and leaf chemical defences (phenolic compounds) of silver birch (Betula pendula) in pure and mixed plots with different tree species composition across twelve tree diversity experiments in different climates. We investigated whether the effects of neighbouring tree species diversity on insect herbivory in birch, i.e. associational effects, were dependent on the climatic context, and whether neighbour-induced changes in birch chemical defences were involved in associational resistance to insect herbivory.3.We showed that herbivory on birch decreased with tree species richness (i.e. associational resistance) in colder environments but that this relationship faded as mean annual temperature increased. 4.Birch leaf chemical defences increased with tree species richness but decreased with the phylogenetic distinctiveness of birch from its neighbours, particularly in warmer and more humid environments. 5.Herbivory was negatively correlated with leaf chemical defences, particularly when birch was associated with closely related species. The interactive effect of tree diversity and climate on herbivory was partially mediated by changes in leaf chemical defences. 6.Our findings demonstrate the complexity and context dependency of patterns and mechanisms underlying associational resistance to insect herbivory in mixed forests.
dc.description.sponsorshipDiversité et Productivité des forêTs impactées par le Changement Climatique - ANR-16-CE32-0003
dc.language.isoen
dc.publisherWiley
dc.subject.enAssociational effects
dc.subject.enBetula pendula
dc.subject.enevolutionary distinctiveness
dc.subject.enleaf phenolics
dc.subject.enmixed forests
dc.subject.enphylogenetic distinctiveness
dc.subject.enplant-insect interactions
dc.subject.enTreeDivNet
dc.title.enClimate affects neighbour-induced changes in leaf chemical defences and tree diversity-herbivory relationships
dc.typeArticle de revue
dc.identifier.doi10.1111/1365-2435.13700
dc.subject.halSciences de l'environnement/Biodiversité et Ecologie
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement
bordeaux.journalFunctional Ecology
bordeaux.peerReviewedoui
hal.identifierhal-02986320
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02986320v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Functional%20Ecology&rft.date=2020&rft.eissn=0269-8463&rft.issn=0269-8463&rft.au=POEYDEBAT,%20Charlotte&JACTEL,%20Herv%C3%A9&MOREIRA,%20Xoaqu%C3%ADn&KORICHEVA,%20Julia&BARSOUM,%20Nadia&rft.genre=article


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