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dc.contributor.authorJeanbille, Mathilde
dc.contributor.authorClemmensen, Karina E
dc.contributor.authorJuhanson, Jaanis
dc.contributor.authorMichelsen, Anders
dc.contributor.authorCooper, Elisabeth J.
dc.contributor.authorHenry, Greg H.R.
dc.contributor.authorHofgaard, Annika
dc.contributor.authorHollister, Robert D.
dc.contributor.authorJónsdóttir, Ingibjörg Svala
dc.contributor.authorKlanderud, Kari
dc.contributor.authorTolvanen, Anne
dc.contributor.authorHallin, Sara
dc.date.accessioned2021-06-21T07:02:02Z
dc.date.available2021-06-21T07:02:02Z
dc.date.issued2021-04-01
dc.description.abstractVegetation change of the Arctic tundra due to global warming is a well-known process, but the implication for the belowground microbial communities, key in nutrient cycling and decomposition, is poorly understood. We characterized the fungal and bacterial abundances in litter and soil layers across 16 warming experimental sites at 12 circumpolar locations. We investigated the relationship between microbial abundances and nitrogen (N) and carbon (C) isotopic signatures, indicating shifts in microbial processes with warming. Microbial abundances were 2-3 orders of magnitudes larger in litter than in soil. Local, site-dependent responses of microbial abundances were variable, and no general effect of warming was detected. The only generalizable trend across sites was a dependence between the warming response-ratios and C:N ratio in controls, highlighting a legacy of the vegetation on the microbial response to warming. We detected a positive effect of warming on the litter mass and δ15N, which was linked to bacterial abundance under warmed conditions. This effect was stronger in experimental sites dominated by deciduous shrubs, suggesting an altered bacterial N-cycling with increased temperatures, mediated by the vegetation, and with possible consequences on ecosystem feedbacks to climate change.en_US
dc.identifier.citationJeanbille, Clemmensen KE, Juhanson, Michelsen A, Cooper E.J., Henry GH, Hofgaard A, Hollister RD, Jónsdóttir IS, Klanderud K, Tolvanen A, Hallin S. Site-specific responses of fungal and bacterial abundances to experimental warming in litter and soil across arctic and alpine tundra. Arctic Science. 2021en_US
dc.identifier.cristinIDFRIDAID 1903243
dc.identifier.doi10.1139/AS-2020-0053
dc.identifier.issn2368-7460
dc.identifier.urihttps://hdl.handle.net/10037/21476
dc.language.isoengen_US
dc.publisherCanadian Science Publishingen_US
dc.relation.journalArctic Science
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2021 The Author(s)en_US
dc.subjectVDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.subjectVDP::Mathematics and natural scienses: 400::Zoology and botany: 480en_US
dc.titleSite-specific responses of fungal and bacterial abundances to experimental warming in litter and soil across arctic and alpine tundraen_US
dc.type.versionacceptedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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