A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Impacts of large herbivores on mycorrhizal fungal communities across the Arctic
Tekijät: Brachmann, Cole G.; Ryberg, Martin; Furneaux, Brendan R.; Rosling, Anna; Ou, Tinghai; Ekblad, Alf; Abdulmanova, Svetlana; Barrio, Isabel C.; Bret-harte, M. Syndonia; Fritze, Hannu; Gough, Laura; Hollister, Robert D.; Jónsdóttir, Ingibjörg S.; Kalttopää, Oula; Lindén, Elin; Mäkiranta, Päivi; Olofsson, Johan; Partanen, Rauni; Reid, Kirsten A.; Sokolov, Aleksandr; Sujala, Maija S.; Sundqvist, Maja K.; Suominen, Otso; Tweedie, Craig E.; Young, Amanda; Björk, Robert G.
Kustantaja: Wiley-Blackwell
Julkaisuvuosi: 2025
Lehti: Ecography
Artikkelin numero: e08045
ISSN: 0906-7590
eISSN: 1600-0587
DOI: https://doi.org/10.1002/ecog.08045
Julkaisun avoimuus kirjaamishetkellä: Avoimesti saatavilla
Julkaisukanavan avoimuus : Kokonaan avoin julkaisukanava
Verkko-osoite: https://doi.org/10.1002/ecog.08045
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/506132857
Mycorrhizal fungi play an integral role in nutrient and carbon cycling in soils, which may be especially important in the Arctic, one of the world's most soil carbon-rich regions. Large mammalian herbivores can influence these fungi through their impacts on vegetation and soil conditions, however the strength and prevalence of these interactions in the Arctic is still uncertain. We collected soils from 15 large mammal exclusion experiments across the Arctic. We sequenced both ITS regions and partial SSU regions using two sets of amplicons to determine the composition of soil mycorrhizal fungal communities. This allowed us to assess how these communities are impacted by exclusion of large mammalian herbivores, plant communities, and climate and soil properties. Large mammalian herbivore exclusion had a significant impact on the arbuscular mycorrhizal (AM) community dissimilarity between sites. The AM community was also influenced by growing season temperature and pH, which may indicate that conditions are becoming more favourable for these species in some Arctic communities. Large herbivore exclusion did not have a coherent impact on ectomycorrhizal and ericoid mycorrhizal fungal community dissimilarity, which were primarily correlated with δ15N signature in the soil, rather than herbivory, climate, or plant functional types. The consistent detection of arbuscular mycorrhizal fungi identified highlights the need for more thorough evaluations of these communities and their role in Arctic carbon and nutrient dynamics, as these fungi are currently understudied in the Arctic.
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The authors would like to acknowledge the following funding agencies that allowed for the collection of the data; Swedish Research Council (Vetenskapsrådet) grant no. 2018-04202 to RGB, Carl Tryggers foundation (grant no. CTS 21:1470) to RGB, the Academy of Finland grant no. 315415 to HF, Russian Ministry of Science and Higher Education program no. 122021000089-9 for AS and SA, US National Science Foundation DEB-1637459 to LG, US National Science Foundation OPP-2221133 to SBH & ABY, US National Science Foundation OPP-1836861 to CET, University of Iceland Research Fund to ISJ, Soil Conservation Service of Iceland, Orkurannsóknasjoður Landsvirkjunar (NÝR-09-2017, NÝR-14-2018, NÝR-12-2019) to ICB and ISJ , the W. Garfield Weston Award in Northern Research, The W. Garfield Weston Foundation Fellowship Program, a program of the Wildlife Conservation Society Canada funded by The W. Garfield Weston Foundation, Northern Scientific Training Program, Aurora Research Institute Research Fellowship, to KAR. This research was conducted with permission from the Vuntut Gwitchin Government and Yukon Government (18-28S&E; 19-10S&E; 20-05S&E), where applicable. The research has received funding from INTERACT III under the European Union H2020 Grant Agreement no. 871120.
