Afficher la notice abrégée

Associational resistance to a pest insect fades with time

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorCASTAGNEYROL, Bastien
hal.structure.identifierSection of Ecology, Department of Biology
dc.contributor.authorKOZLOV, Mikhail V.
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPOEYDEBAT, Charlotte
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
hal.structure.identifierCentre d’Ecologie Fonctionnelle et Evolutive [CEFE]
dc.contributor.authorTOIGO, Maude
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorJACTEL, Hervé
dc.date.issued2020
dc.identifier.issn1612-4758
dc.description.abstractEnTree diversity is one of the drivers of forest resistance to herbivores. Most of the current understanding of the diversity resistance relationship comes primarily from short-term studies. Knowing whether tree diversity effects on herbivores are maintained over time is important for perennial ecosystems like forests. We addressed the temporal dynamics of the diversity resistance relationship by conducting a 6-year survey of pine attacks by the pine processionary moth Thaumetopoea pityocampa (PPM) in a tree diversity experiment where we could disentangle tree composition from host density effects. During the first years after planting the trees, PPM attacks on maritime pine Pinus pinaster were reduced in the presence of birch Betula pendula, a fast-growing non-host tree (i.e. associational resistance). This effect was maintained but faded with time as the pines eventually grew taller than neighbouring birches. The number of repeated attacks on individual pine trees also decreased in mixed pine-birch stands. Pine density had a positive effect on stand colonisation by PPM and a negative effect on the proportion of trees that were attacked. Pines were less likely to be repeatedly attacked as pine density increased, with attacks being spread over a larger number of host trees. Collectively, these results unravel the independent contribution of tree species composition and host density to tree resistance to herbivores. Both processes had directional changes over time. These results indicate that the resistance of planted forests to herbivores can be improved by carefully choosing the composition of mixed forests and the timing of species planting.
dc.language.isoen
dc.publisherSpringer Verlag
dc.subjectplant-insect interactions
dc.subject.enassociational effects
dc.subject.enforest
dc.subject.enORPHEE experiment
dc.subject.enThaumetopoea pityocampa
dc.title.enAssociational resistance to a pest insect fades with time
dc.typeArticle de revue
dc.identifier.doi10.1007/s10340-019-01148-y
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalJournal of Pest Science
bordeaux.page427-437
bordeaux.volume93
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-02624306
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02624306v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Pest%20Science&rft.date=2020&rft.volume=93&rft.issue=1&rft.spage=427-437&rft.epage=427-437&rft.eissn=1612-4758&rft.issn=1612-4758&rft.au=CASTAGNEYROL,%20Bastien&KOZLOV,%20Mikhail%20V.&POEYDEBAT,%20Charlotte&TOIGO,%20Maude&JACTEL,%20Herv%C3%A9&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée