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Linking patterns and processes in alpine plant communities: a global study

hal.structure.identifierEstacion Experimental de Zonas Aridas
hal.structure.identifierInstitute of Botany
dc.contributor.authorKIKVIDZE, Zaal
hal.structure.identifierEstacion Experimental de Zonas Aridas
dc.contributor.authorPUGNAIRE, Francisco I.
hal.structure.identifierBanchory Research Station
dc.contributor.authorBROOKER, Robin W.
hal.structure.identifierUniversité Joseph Fourier - Grenoble 1 [UJF]
dc.contributor.authorCHOLER, Philippe
hal.structure.identifierNatural Resources and Environmental Sciences
dc.contributor.authorLORTIE, Christopher J.
hal.structure.identifierBiodiversité, Gènes et Ecosystèmes [BioGeCo]
dc.contributor.authorMICHALET, Richard
hal.structure.identifierSchool of Biological Sciences [Univ California San Diego] [UC San Diego]
dc.contributor.authorCALLAWAY, Ragan M.
dc.date.issued2005
dc.identifier.issn0012-9658
dc.description.abstractEnPredictable relationships among patterns, processes, and properties of plant communities are crucial for developing meaningful conceptual models in community ecology. We studied such relationships in 18 plant communities spread throughout nine Northern Hemisphere high-mountain subalpine and alpine meadow systems and found linear and curvilinear correlative links among temperature, precipitation, productivity, plant interactions, spatial pattern, and richness. We found that sites with comparatively mild climates have greater plant biomass, and at these sites strong competition corresponds with overdispersed distribution of plants, reducing intraspecific patchiness and in turn increasing local richness. Sites with cold climates have little biomass, and at these sites a high proportion of species benefit from strong facilitative effects of neighbors, leading to an aggregated distribution of plants. Sites with intermediate, or relatively moderate climates are intermediate in biomass, and at these sites interactions are weak (or competition may be counterbalanced by facilitation), corresponding with a nearly random distribution of plants. At these sites species richness is lower than average. We propose that the relationship between interspecific spatial pattern and community richness reflects niche differentiation and/or construction, which allows for the coexistence of more species than would be possible with random, unstructured spatial distributions. Discovering the mechanisms that drive the relationships described here would further link functional and structural components of plant communities and enhance the predictive capability of community ecology
dc.language.isoen
dc.publisherEcological Society of America
dc.subjectFACILITATION
dc.subjectPLANT INTERACTIONS
dc.subject.enALPINE SYSTEMS
dc.subject.enCLIMATE CHANGE
dc.subject.enCOMPETITION
dc.subject.enENVIRONMENTAL STRESS
dc.subject.enPRECIPITATION
dc.subject.enPRODUCTIVITY
dc.subject.enSPATIAL PATTERN
dc.subject.enSPECIES DIVERSITY
dc.subject.enTEMPERATURE
dc.title.enLinking patterns and processes in alpine plant communities: a global study
dc.typeArticle de revue
dc.subject.halSciences de l'environnement/Biodiversité et Ecologie
bordeaux.journalEcology
bordeaux.page1395-1400
bordeaux.volume86
bordeaux.issue6
bordeaux.peerReviewedoui
hal.identifierhal-02683574
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02683574v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Ecology&rft.date=2005&rft.volume=86&rft.issue=6&rft.spage=1395-1400&rft.epage=1395-1400&rft.eissn=0012-9658&rft.issn=0012-9658&rft.au=KIKVIDZE,%20Zaal&PUGNAIRE,%20Francisco%20I.&BROOKER,%20Robin%20W.&CHOLER,%20Philippe&LORTIE,%20Christopher%20J.&rft.genre=article


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