Declining fungal diversity in Arctic freshwaters along a permafrost thaw gradient
Climate change-driven permafrost thaw has a strong influence on pan-Arctic regions, via, for example, the formation of thermokarst ponds. These ponds are hotspots of microbial carbon cycling and greenhouse gas production, and efforts have been put on disentangling the role of bacteria and archaea in...
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ftslunivuppsala:oai:pub.epsilon.slu.se:25936 2023-05-15T14:26:07+02:00 Declining fungal diversity in Arctic freshwaters along a permafrost thaw gradient Kluge, Mariana Wauthy, Maxime Engelbrecht Clemmensen, Karina Wurzbacher, Christian Hawkes, Jeffrey A. Einarsdottir, Karolina Rautio, Milla Stenlid, Jan Peura, Sari 2021 application/pdf https://pub.epsilon.slu.se/25936/ https://pub.epsilon.slu.se/25936/1/kluge_m_et_al_211025.pdf en eng eng https://pub.epsilon.slu.se/25936/1/kluge_m_et_al_211025.pdf Kluge, Mariana and Wauthy, Maxime and Engelbrecht Clemmensen, Karina and Wurzbacher, Christian and Hawkes, Jeffrey A. and Einarsdottir, Karolina and Rautio, Milla and Stenlid, Jan and Peura, Sari (2021). Declining fungal diversity in Arctic freshwaters along a permafrost thaw gradient. Global Change Biology. 27 , 5889-5906 [Research article] Climate Research Ecology Research article NonPeerReviewed info:eu-repo/semantics/article 2021 ftslunivuppsala 2022-09-15T16:13:55Z Climate change-driven permafrost thaw has a strong influence on pan-Arctic regions, via, for example, the formation of thermokarst ponds. These ponds are hotspots of microbial carbon cycling and greenhouse gas production, and efforts have been put on disentangling the role of bacteria and archaea in recycling the increasing amounts of carbon arriving to the ponds from degrading watersheds. However, despite the well-established role of fungi in carbon cycling in the terrestrial environments, the interactions between permafrost thaw and fungal communities in Arctic freshwaters have remained unknown. We integrated data from 60 ponds in Arctic hydro-ecosystems, representing a gradient of permafrost integrity and spanning over five regions, namely Alaska, Greenland, Canada, Sweden, and Western Siberia. The results revealed that differences in pH and organic matter quality and availability were linked to distinct fungal community compositions and that a large fraction of the community represented unknown fungal phyla. Results display a 16%-19% decrease in fungal diversity, assessed by beta diversity, across ponds in landscapes with more degraded permafrost. At the same time, sites with similar carbon quality shared more species, aligning a shift in species composition with the quality and availability of terrestrial dissolved organic matter. We demonstrate that the degradation of permafrost has a strong negative impact on aquatic fungal diversity, likely via interactions with the carbon pool released from ancient deposits. This is expected to have implications for carbon cycling and climate feedback loops in the rapidly warming Arctic. Article in Journal/Newspaper Arctic Arctic Climate change Greenland permafrost Thermokarst Alaska Siberia Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive Arctic Canada Greenland |
institution |
Open Polar |
collection |
Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive |
op_collection_id |
ftslunivuppsala |
language |
English |
topic |
Climate Research Ecology |
spellingShingle |
Climate Research Ecology Kluge, Mariana Wauthy, Maxime Engelbrecht Clemmensen, Karina Wurzbacher, Christian Hawkes, Jeffrey A. Einarsdottir, Karolina Rautio, Milla Stenlid, Jan Peura, Sari Declining fungal diversity in Arctic freshwaters along a permafrost thaw gradient |
topic_facet |
Climate Research Ecology |
description |
Climate change-driven permafrost thaw has a strong influence on pan-Arctic regions, via, for example, the formation of thermokarst ponds. These ponds are hotspots of microbial carbon cycling and greenhouse gas production, and efforts have been put on disentangling the role of bacteria and archaea in recycling the increasing amounts of carbon arriving to the ponds from degrading watersheds. However, despite the well-established role of fungi in carbon cycling in the terrestrial environments, the interactions between permafrost thaw and fungal communities in Arctic freshwaters have remained unknown. We integrated data from 60 ponds in Arctic hydro-ecosystems, representing a gradient of permafrost integrity and spanning over five regions, namely Alaska, Greenland, Canada, Sweden, and Western Siberia. The results revealed that differences in pH and organic matter quality and availability were linked to distinct fungal community compositions and that a large fraction of the community represented unknown fungal phyla. Results display a 16%-19% decrease in fungal diversity, assessed by beta diversity, across ponds in landscapes with more degraded permafrost. At the same time, sites with similar carbon quality shared more species, aligning a shift in species composition with the quality and availability of terrestrial dissolved organic matter. We demonstrate that the degradation of permafrost has a strong negative impact on aquatic fungal diversity, likely via interactions with the carbon pool released from ancient deposits. This is expected to have implications for carbon cycling and climate feedback loops in the rapidly warming Arctic. |
format |
Article in Journal/Newspaper |
author |
Kluge, Mariana Wauthy, Maxime Engelbrecht Clemmensen, Karina Wurzbacher, Christian Hawkes, Jeffrey A. Einarsdottir, Karolina Rautio, Milla Stenlid, Jan Peura, Sari |
author_facet |
Kluge, Mariana Wauthy, Maxime Engelbrecht Clemmensen, Karina Wurzbacher, Christian Hawkes, Jeffrey A. Einarsdottir, Karolina Rautio, Milla Stenlid, Jan Peura, Sari |
author_sort |
Kluge, Mariana |
title |
Declining fungal diversity in Arctic freshwaters along a permafrost thaw gradient |
title_short |
Declining fungal diversity in Arctic freshwaters along a permafrost thaw gradient |
title_full |
Declining fungal diversity in Arctic freshwaters along a permafrost thaw gradient |
title_fullStr |
Declining fungal diversity in Arctic freshwaters along a permafrost thaw gradient |
title_full_unstemmed |
Declining fungal diversity in Arctic freshwaters along a permafrost thaw gradient |
title_sort |
declining fungal diversity in arctic freshwaters along a permafrost thaw gradient |
publishDate |
2021 |
url |
https://pub.epsilon.slu.se/25936/ https://pub.epsilon.slu.se/25936/1/kluge_m_et_al_211025.pdf |
geographic |
Arctic Canada Greenland |
geographic_facet |
Arctic Canada Greenland |
genre |
Arctic Arctic Climate change Greenland permafrost Thermokarst Alaska Siberia |
genre_facet |
Arctic Arctic Climate change Greenland permafrost Thermokarst Alaska Siberia |
op_relation |
https://pub.epsilon.slu.se/25936/1/kluge_m_et_al_211025.pdf Kluge, Mariana and Wauthy, Maxime and Engelbrecht Clemmensen, Karina and Wurzbacher, Christian and Hawkes, Jeffrey A. and Einarsdottir, Karolina and Rautio, Milla and Stenlid, Jan and Peura, Sari (2021). Declining fungal diversity in Arctic freshwaters along a permafrost thaw gradient. Global Change Biology. 27 , 5889-5906 [Research article] |
_version_ |
1766298597720064000 |