10.18710/QHTCPCMoriana-Armendariz, MikelMikelMoriana-Armendariz0000-0001-8251-1338UiT The Arctic University of NorwayCooper, Elisabeth J.Elisabeth J.Cooper0000-0002-0634-1282UiT The Arctic University of NorwayAbbandonato, HollyHollyAbbandonato0000-0003-4334-9707Mount Allison UniversityYamaguchi, TakahiroTakahiroYamaguchiGraduate School of Life and Environmental SciencesMörsdorf, Martin A.Martin A.Mörsdorf0000-0002-3903-2021University of FreiburgAares, Karoline H.Karoline H.AaresUiT The Arctic University of NorwaySemenchuk, Philipp R.Philipp R.Semenchuk0000-0002-1949-6427University of ViennaTojo, MotoakiMotoakiTojo0000-0001-9660-4359Graduate School of Life and Environmental SciencesReplication Data for: Increased snow and cold season temperatures alter High Arctic parasitic fungi - host plant interactions.DataverseNO2021Earth and Environmental SciencesCassiope tetragonaExobasidium hypogenumPythium polareSanionia uncinatawintersnowfenceSvalbardSnoEcoMikel Moriana-ArmendarizMikelMoriana-ArmendarizUiT The Arctic University of NorwayCooper, Elisabeth J.Elisabeth J.CooperUiT The Arctic University of NorwayUiT The Arctic University of NorwayMoriana Armendariz, MikelMikelMoriana ArmendarizAbbandonato, HollyHollyAbbandonatoYamaguchi, TakahiroTakahiroYamaguchiMörsdorf, Martin A.Martin A.MörsdorfAares, Karoline H.Karoline H.AaresSemenchuk, Philipp R.Philipp R.SemenchukTojo, MotoakiMotoakiTojoCooper, Elisabeth J.Elisabeth J.CooperMaruo, FuminoFuminoMaruoKusama, YukoYukoKusamaPilsbacher, Anna KatharinaAnna KatharinaPilsbacherBender, kathrinkathrinBenderVuorinen, KatariinaKatariinaVuorinenPaquin, KarolinaKarolinaPaquinKemmotsu, MasashiMasashiKemmotsuUiT The Arctic University of NorwayUiT The Arctic University of Norway2021-04-052021-06-042021-04-122013-06-01/2019-09-15Experimental data34939504346153885640452312992777238960287054593100371654138916479714211595172569168370438003808text/plaintext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestype/x-r-syntaxtext/tab-separated-valuestext/tab-separated-valuestype/x-r-syntaxtext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-values1.0CC0 1.0Dataset for Moriana-Armendariz et al. 2021- Increased snow and cold season temperatures alter High Arctic parasitic fungi - host plant interactions. In the Arctic, fungal mycelial growth takes place mainly during the cold-season and beginning of growing season. Climate change induced increases of cold-season temperatures may, hence, benefit fungal growth and increase their abundance. This is of special importance for parasitic fungi, which may significantly shape Arctic vegetation composition. Here, we studied two contrasting plant parasitic fungi’s occurrences (biotrophic Exobasidium hypogenum on vascular plant Cassiope tetragona, and necrotrophic Pythium polare on moss Sanionia uncinata) in response to increased snow depth, a method primarily used to increase cold-season temperatures, after 7-13 years of snow manipulation in Adventdalen, Svalbard. We show that enhanced snow depth increased occurrences of both fungi tested here, and indicate that increased fungal infections of host plants were at least partly responsible for decreases of host occurrences. While bryophyte growth in general may be influenced by increased soil moisture and reduced competition from vascular plants, Pythium is likely enhanced by the combination of milder winter temperatures and moister environment provided by the snow. The relationships between host plants and fungal infection indicate ongoing processes involved in the dynamics of compositional adjustment to changing climate.R, 3.6.1TromsøNorwegian Research Council230970Fram Terrestrial Flagship362270Norwegian Centre for International Cooperation in EducationHNP2013/10092Japan Society for the Promotion of Science19K12421