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Tree diversity and density affect injuries caused by the invasive pest Cameraria ohridella in urban areas

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorSTEMMELEN, Alex
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorJACTEL, Hervé
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorCASTAGNEYROL, Bastien
dc.date.accessioned2025-07-19T02:02:08Z
dc.date.available2025-07-19T02:02:08Z
dc.date.issued2025-06
dc.identifier.issn1618-8667
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/207363
dc.description.abstractEnInvasive, non-native invasive pests pose a growing threat to urban trees and the services they provide to urban residents. With the reluctance to use chemical insecticides in cities, environmentally friendly methods of pest management are needed. Tree diversity is known to affect insect herbivory in forest, with higher tree species diversity leading to lower level of damage. However, the validity of those findings for a non-native insect in an urban environment remains to be demonstrated. We monitored 54 horse chestnut trees attacked by the invasive horse chestnut leafminer Cameraria ohridella in the city of Bordeaux, France. We analyzed the effects of neighboring tree diversity and density on the abundance, injury and parasitism rate of these leafminers. We showed that the abundance and injuries of C. ohridella significantly increased with higher local tree canopy cover. We found that the parasitism rate of C. ohridella increased with the species diversity of neighboring trees. However, this increase in parasitism rate was not associated with a decrease in leaf area injured. Our results pave the way for the management of exotic insect pests in cities based on the manipulation of spatial distribution and species diversity of urban trees.
dc.language.isoen
dc.publisherElsevier
dc.subject.enInsect herbivory
dc.subject.enTree diversity
dc.subject.enTree density
dc.subject.enCameraria ohridella
dc.subject.enUrban trees
dc.subject.enParasitism
dc.title.enTree diversity and density affect injuries caused by the invasive pest Cameraria ohridella in urban areas
dc.typeArticle de revue
dc.identifier.doi10.1016/j.ufug.2025.128820
dc.subject.halSciences de l'environnement
bordeaux.journalUrban Forestry and Urban Greening
bordeaux.page128820
bordeaux.volume108
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-05168658
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-05168658v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Urban%20Forestry%20and%20Urban%20Greening&rft.date=2025-06&rft.volume=108&rft.spage=128820&rft.epage=128820&rft.eissn=1618-8667&rft.issn=1618-8667&rft.au=STEMMELEN,%20Alex&JACTEL,%20Herv%C3%A9&CASTAGNEYROL,%20Bastien&rft.genre=article


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