Publication :
Local habitat filtering shapes microbial community structure in four closely spaced lakes in the High Arctic

ali.license-refhttps://creativecommons.org/licenses/by/4.0fr
ali.license-ref.start-date2022-02-11fr
bul.description.provenancenoadg spbarfr
bul.rights.dateAccepPubl2022-02-11fr
bul.rights.periodeEmbargoP0Mfr
bul.rights.typeDatedatePublicationfr
dc.contributor.authorCulley, Alexander
dc.contributor.authorAntoniades, Dermot
dc.contributor.authorGirard, Catherine
dc.contributor.authorVincent, Warwick F.
dc.contributor.authorMarois, Catherine
dc.contributor.authorKlanten, Yohanna
dc.coverage.spatialNunavut -- Ellesmere, Île d'fr
dc.date.accessioned2022-03-03T16:26:13Z
dc.date.available2022-03-03T16:26:13Z
dc.date.issued2022-02-11
dc.description.abstractArctic lakes are experiencing increasingly shorter periods of ice cover due to accelerated warming at northern high latitudes. Given the control of ice cover thickness and duration over many limnological processes, these changes will have pervasive effects. However, due to their remote and extreme locations even first-order data on lake ecology is lacking for many ecosystems. The aim of this study was to characterize and compare the microbial communities of four closely spaced lakes in Stuckberry Valley (northern Ellesmere Island, Canadian Arctic Archipelago), in the coastal margin zone of the Last Ice Area, that differed in their physicochemical, morphological and catchment characteristics. We performed high-throughput amplicon sequencing of the V4 16S rRNA gene to provide inter- and intra-lake comparisons. Two deep (>25 m) and mostly oxygenated lakes showed highly similar community assemblages that were distinct from those of two shallower lakes (<10 m) with anoxic bottom waters. Proteobacteria, Verrucomicrobia, and Planctomycetes were the major phyla present in the four water bodies. One deep lake contained elevated proportions of Cyanobacteria and Thaumarchaeota that distinguished it from the others, while the shallow lakes had abundant communities of predatory bacteria, as well as microbes in their bottom waters that contribute to sulfur and methane cycles. Despite their proximity, our data suggest that local habitat filtering is the primary determinant of microbial diversity in these systems. This study provides the first detailed examination of the microbial assemblages of the Stuckberry lakes system, resulting in new insights into the microbial ecology of the High Arctic.fr
dc.identifier.doi10.3389/fmicb.2022.779505fr
dc.identifier.issn1664-302Xfr
dc.identifier.urihttp://hdl.handle.net/20.500.11794/72803
dc.languageengfr
dc.publisherFrontiers Media S.A.fr
dc.rightshttp://purl.org/coar/access_right/c_abf2
dc.subjectDiversityfr
dc.subjectConnectivityfr
dc.subjectPredatory bacteriafr
dc.subjectEllesmere Islandfr
dc.subjectStuckberry Valleyfr
dc.subjectAmplicon sequence variant (ASV)fr
dc.subjectArctic lakefr
dc.subject.rvmMicrobiologie d'eau doucefr
dc.subject.rvmÉcologie microbienne aquatiquefr
dc.subject.rvmDiversité microbiennefr
dc.titleLocal habitat filtering shapes microbial community structure in four closely spaced lakes in the High Arcticfr
dc.typearticle de recherche
dc.type.legacyCOAR1_1::Texte::Périodique::Revue::Contribution à un journal::Article::Article de recherchefr
dcterms.bibliographicCitationFrontiers in Microbiology, Vol. 13, 1-37 (2022)fr
dspace.accessstatus.time2023-05-26 18:20:10
dspace.entity.typePublication
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rioxxterms.project.funder-nameNatural Resources Canadafr
rioxxterms.project.funder-nameNatural Sciences and Engineering Research Council (NSERC) of Canadafr
rioxxterms.project.funder-nameFonds de Recherche du Québec - Nature et Technologiesfr
rioxxterms.project.funder-nameCanada First Research Excellence Fundfr
rioxxterms.versionVersion of Record (VoR)fr
rioxxterms.version-of-recordhttps://doi.org/10.3389/fmicb.2022.779505fr
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