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Forest canopy and mistletoe infestation alter the facilitative effects of Juniperus oxycedrus s.l. on woody seedlings on Mount Lebanon (Lebanon)

dc.rights.licenseopenen_US
dc.contributor.authorDOUAIHY, Bouchra
dc.contributor.authorMAAMARY, Andrea
dc.contributor.authorYAMMINE, Ralph
dc.contributor.authorFRIDLENDER, Alain
dc.contributor.authorNEMER, David
dc.contributor.authorDELERUE, Florian
dc.contributor.authorMICHALET, Richard
dc.date.accessioned2023-04-21T09:34:01Z
dc.date.available2023-04-21T09:34:01Z
dc.date.issued2022-11-24
dc.identifier.issn1654-1103en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/173137
dc.description.abstractEnQuestions In this study we investigated the direct effect of the shrub Juniperus oxycedrus s.l. on Mediterranean woody species regeneration, and how this interaction can be modified by the juniper habit, the forest canopy and/or infestation of the juniper by the plant parasite Arceuthobium oxycedri. We also aimed at identifying species response groups in relation to their ecological requirements and successional strategies. Location North of Mount Lebanon, in Horsch Ehden natural reserve, a humid montane Mediterranean forest. Methods We compared the regeneration of all occurring woody species below and outside 111 Juniperus oxycedrus canopies using the random pair sampling method. We calculated eight relative interaction intensity indexes (RIIJuniper) corresponding to the eight treatment combinations of the three factors: forest canopy (forest/gap), mistletoe infestation (with/without) and juniper habit (spreading/erect). We analyzed the RII values at three different levels: community (all species grouped), species group and species. Results Overall, the regeneration of the woody community was facilitated by Juniperus oxycedrus. However, the forest cover significantly reduced the facilitative effect of Juniperus oxycedrus when the latter was not infested by Arceuthobium oxycedri. We identified three species response groups (A: highly facilitated; B: slightly facilitated to neutral; and C: neutral) determined by their response to both Juniperus oxycedrus canopy and forest cover. The most facilitated species were shade-tolerant/drought-intolerant late-successional species. Conclusions The results suggest the importance of shade tolerance in the complex mechanism of forest regeneration that is also affected by a parasite plant (Arceuthobium oxycedri), which boosts regeneration dynamics under forest cover by reducing shrub canopy cover.
dc.language.isoENen_US
dc.title.enForest canopy and mistletoe infestation alter the facilitative effects of Juniperus oxycedrus s.l. on woody seedlings on Mount Lebanon (Lebanon)
dc.typeArticle de revueen_US
dc.identifier.doi10.1111/jvs.13163en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalJournal of Vegetation Scienceen_US
bordeaux.volume33en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.issue6en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamECOBIOCen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.identifierhal-04077148
hal.version1
hal.date.transferred2023-04-21T09:34:15Z
hal.exporttrue
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Vegetation%20Science&rft.date=2022-11-24&rft.volume=33&rft.issue=6&rft.eissn=1654-1103&rft.issn=1654-1103&rft.au=DOUAIHY,%20Bouchra&MAAMARY,%20Andrea&YAMMINE,%20Ralph&FRIDLENDER,%20Alain&NEMER,%20David&rft.genre=article


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