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Contrasting understorey species responses to the canopy and root effects of a dominant shrub drive community composition

dc.rights.licenseopenen_US
dc.contributor.authorWANG, Xiangtai
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMICHALET, Richard
dc.contributor.authorCHEN, Shuyan
dc.contributor.authorZHAO, Liang
dc.contributor.authorAN, Lizhe
dc.contributor.authorDU, Guozhen
dc.contributor.authorZHANG, Xiaochen
dc.contributor.authorJIANG, Xingpei
dc.contributor.authorXIAO, Sa
dc.date.accessioned2024-10-07T11:40:56Z
dc.date.available2024-10-07T11:40:56Z
dc.date.issued2017-11-01
dc.identifier.issn1100-9233en_US
dc.identifier.urioai:crossref.org:10.1111/jvs.12565
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/202289
dc.description.abstractEnQuestions: Contrasting understorey species responses to the effects of dominant species might occur within a single community even with neutral community-level interactions. However, no studies have assessed the contribution of below-and above-ground effects for all species of a community and their consequences for community composition. We tested the following hypotheses: (i) there are contrasting responses of understorey species to the canopy and root effects of a dominant shrub; (ii) the contrasting understorey responses to the canopy and root effects of the shrub are related to community composition. Location: Species-rich sub-alpine community, eastern Tibet Plateau, China, dominated by Dasiphora fruticosa. Methods: We used a removal procedure and shade cloth treatment to separate root from canopy effects and quantified the biomass responses of 41 species of the understorey community. Species-level responses to the root and canopy effects were quantified with the relative interaction index. We conducted multivariate analyses to assess the relative contribution of root and canopy effects to community composition. Results: We found contrasting species-level responses to the canopy and root effects of D. fruticosa that could be grouped into six cluster groups. Dominant effects were positive for the roots and negative for the canopy, with a tendency for a trade-off between the two. Community-level effects were less strong and weakly significant, in particular for species richness. Root and canopy effects strongly explained understorey species composition but net shrub effects did not. Conclusions: This study highlights that communities include species having contrasting responses to both the canopy and root effects of dominant species that importantly explain species composition.
dc.language.isoENen_US
dc.sourcecrossref
dc.title.enContrasting understorey species responses to the canopy and root effects of a dominant shrub drive community composition
dc.typeArticle de revueen_US
dc.identifier.doi10.1111/jvs.12565en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalJournal of Vegetation Scienceen_US
bordeaux.page1118-1127en_US
bordeaux.volume28en_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
bordeaux.import.sourcedissemin
hal.identifierhal-04723830
hal.version1
hal.date.transferred2024-10-07T11:40:58Z
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exporttrue
workflow.import.sourcedissemin
dc.rights.ccPas de Licence CCen_US
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