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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.accessioned2022-04-13T09:47:18Z
dc.date.available2022-04-13T09:47:18Z
dc.date.created2021-04-09T14:41:08Z
dc.date.issued2021
dc.identifier.citationArctic Science. 2021.en_US
dc.identifier.issn2368-7460
dc.identifier.urihttps://hdl.handle.net/11250/2991157
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.language.isoengen_US
dc.titleSite-specific responses of fungal and bacterial abundances to experimental warming in litter and soil across arctic and alpine tundraen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.subject.nsiVDP::Zoologiske og botaniske fag: 480en_US
dc.subject.nsiVDP::Zoology and botany: 480en_US
dc.source.journalArctic Scienceen_US
dc.identifier.doi10.1139/AS-2020-0053
dc.identifier.cristin1903243
dc.relation.projectNorges forskningsråd: . 176065en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.fulltextpostprint
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cristin.qualitycode1


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