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Tree diversity reduces co-infestation of Douglas fir by two exotic pests and pathogens

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorSTEMMELEN, Alex
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorCASTAGNEYROL, Bastien
hal.structure.identifierEarth and Life Institute [Louvain-La-Neuve] [ELI]
dc.contributor.authorPONETTE, Quentin
hal.structure.identifierSwiss Federal Institute for Forest, Snow and Landscape Research WSL
dc.contributor.authorPROSPERO, Simone
hal.structure.identifierWalloon Agricultural Research Centre
dc.contributor.authorSAN MARTIN, Gilles
hal.structure.identifierSwiss Federal Institute for Forest, Snow and Landscape Research WSL
dc.contributor.authorSCHNEIDER, Salome
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorJACTEL, Hervé
dc.date.accessioned2024-04-11T08:05:06Z
dc.date.available2024-04-11T08:05:06Z
dc.date.issued2023-05-18
dc.identifier.issn1619-0033
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/197437
dc.description.abstractEnThe number of non-native invasive pests and pathogens has increased dramatically in recent years, with disastrous consequences for the health of forests worldwide. Multiple studies have shown that mixed forests may suffer less damage from insect pests than single species forest. This "associational resistance" can be notably explained by the fact that heterospecific neighbours make it more difficult for herbivores to locate and then exploit their host tree. However, the validity of these findings in the case of non-native, invasive pests and pathogens remains to be demonstrated. In this study, we monitored over two hundred Douglas firs in pure and mixed plots of a tree diversity experiment to assess the damage from the non-native gall midge Contarinia pseudotsugae and the non-native needle cast Nothophaeocryptopus gaeumannii. The probability of Swiss needle-cast infection was lower in Douglas fir trees surrounded by heterospecific neighbours. Gall midge damage was lower on Douglas firs surrounded by taller neighbours, consistent with the hypothesis of reduced host Apparency. Douglas fir trees that were more damaged by C. pseudotsugae were also more often infected by N. gaeumannii. Our study thus provides partial support of the associational resistance hypothesis of mixed forests against exotic pests and pathogens. Promoting forest species diversity at the stand level could, therefore, offer interesting prospects for reducing the im-pact of biological invasions, especially those involving both pests and pathogens.
dc.language.isoen
dc.publisherPensoft Publishers
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enDouglas fir
dc.subject.enexotic pathogen
dc.subject.enexotic pest
dc.subject.enresource concentration
dc.subject.entree apparency
dc.subject.entree diversity
dc.title.enTree diversity reduces co-infestation of Douglas fir by two exotic pests and pathogens
dc.typeArticle de revue
dc.identifier.doi10.3897/neobiota.84.94109
dc.subject.halSciences de l'environnement
bordeaux.journalNeoBiota
bordeaux.page397 - 413
bordeaux.volume84
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-04513412
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04513412v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=NeoBiota&rft.date=2023-05-18&rft.volume=84&rft.spage=397%20-%20413&rft.epage=397%20-%20413&rft.eissn=1619-0033&rft.issn=1619-0033&rft.au=STEMMELEN,%20Alex&CASTAGNEYROL,%20Bastien&PONETTE,%20Quentin&PROSPERO,%20Simone&SAN%20MARTIN,%20Gilles&rft.genre=article


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