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Les co-occurrence au sein des communautés de diatomées révèlent moins de ségrégation que prédit par un modèle de niche

hal.structure.identifierEcosystèmes aquatiques et changements globaux [UR EABX]
dc.contributor.authorBOTTIN, M.
hal.structure.identifierHelsingin yliopisto = Helsingfors universitet = University of Helsinki
dc.contributor.authorSOININEN, J.
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorALARD, D.
hal.structure.identifierEcosystèmes aquatiques et changements globaux [UR EABX]
dc.contributor.authorTISON-ROSEBERY, Juliette
dc.date.created2016
dc.date.issued2016
dc.identifier.issn1932-6203
dc.description.abstractEnSpecies co-occurrence patterns give significant insights into the processes shaping communities. While biotic interactions have been widely studied using co-occurrence analyses in animals and larger plants, studies about co-occurrences among micro-organisms are quite rare. We examined stream diatom co-occurrences and nestedness in France, and tested the significance of the patterns with a set of random and environmentally constrained null models. Real communities showed a higher segregation than the most conservative random null models, but a general aggregation of co-occurrences when compared to environmentally constrained null models. We did not find any evidence of limiting similarity between co-occurring species. Aggregations of species co-occurrences were associated with the high levels of nestedness. Altogether, these results suggested that biotic interactions were not structuring co-occurrences of diatom species at our study scale. Instead, the patterns were more likely to be related with colonization patterns, mass-effect, and local dynamics of diatom biofilms. We further highlight that the association of random and environmentally constrained null models may give realistic insights into the co-occurrence patterns of microbial communities data.
dc.language.isoen
dc.publisherPublic Library of Science
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subjectDIATOMEE
dc.subjectMODELISATION
dc.subject.enDIATOM
dc.subject.enMODELLING
dc.titleLes co-occurrence au sein des communautés de diatomées révèlent moins de ségrégation que prédit par un modèle de niche
dc.title.enDiatom Cooccurrence Shows Less Segregation than Predicted from Niche Modeling
dc.typeArticle de revue
dc.identifier.doi10.1371/journal.pone.0154581
dc.subject.halSciences de l'environnement
bordeaux.journalPLoS ONE
bordeaux.page18 p.
bordeaux.volume11
bordeaux.issue4
bordeaux.peerReviewedoui
hal.identifierhal-01320605
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01320605v1
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