Mostrar el registro sencillo del ítem

Does disturbance drive the collapse of biotic interactions at the severe end of a diversity–biomass gradient?

hal.structure.identifierÉtude et compréhension de la biodiversité [ECODIV]
dc.contributor.authorFOREY, Estelle
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorTOUZARD, Blaise
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMICHALET, Richard
dc.date.issued2010-02
dc.identifier.issn1385-0237
dc.description.abstractEnIt has been recently proposed that the decrease in diversity towards the severe end of the humped-back diversity–biomass model of Grime was driven by a collapse of facilitation due to extreme conditions of either stress or physical disturbance. In order to test the hypothesis that disturbance is the primary direct factor driving the collapse of interactions occurring along environmental severity gradients, we conducted a removal experiment in the highly stressed French coastal dunes along a gradient of disturbance due to sand burial. Four dune species were used as targets and transplanted with and without neighbours in four communities along the gradient. The experiment was conducted twice, a dry and an average year. Results of the experiment showed that during the dry year the effect of the environment was prominent and only one species was facilitated for survival in the least disturbed community. During the average year, interactions for growth were important only in the same community, with positive or negative responses depending on the natural position of the target species within the coastal dune gradient. In accordance with our hypothesis, most interactions for both survival and growth were observed in the least disturbed community exhibiting the highest diversity. There were no interactions in the most disturbed community with the lowest diversity.
dc.language.isoen
dc.publisherSpringer Verlag
dc.subjectFACILITATION
dc.subjectDUNE DE SABLE
dc.subjectINTERACTION BIOTIQUE
dc.subjectEFFONDREMENT
dc.subjectPERTURBATION PHYSIQUE
dc.subject.enCOASTAL SAND DUNES
dc.subject.enCOMPETITION
dc.subject.enPHYSICAL DISTURBANCE
dc.subject.enSTRESS
dc.title.enDoes disturbance drive the collapse of biotic interactions at the severe end of a diversity–biomass gradient?
dc.typeArticle de revue
dc.identifier.doi10.1007/s11258-009-9642-z
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement
bordeaux.journalPlant Ecology
bordeaux.page287-295
bordeaux.volume206
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-02437386
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02437386v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Plant%20Ecology&rft.date=2010-02&rft.volume=206&rft.issue=2&rft.spage=287-295&rft.epage=287-295&rft.eissn=1385-0237&rft.issn=1385-0237&rft.au=FOREY,%20Estelle&TOUZARD,%20Blaise&MICHALET,%20Richard&rft.genre=article


Archivos en el ítem

ArchivosTamañoFormatoVer

No hay archivos asociados a este ítem.

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem