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...
Published in: | Global Change Biology |
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Language: | English |
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Uppsala universitet, Analytisk kemi
2021
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-468874 https://doi.org/10.1111/gcb.15852 |
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ftuppsalauniv:oai:DiVA.org:uu-468874 2024-02-11T10:00:14+01:00 Declining fungal diversity in Arctic freshwaters along a permafrost thaw gradient Kluge, Mariana Wauthy, Maxime Clemmensen, Karina Engelbrecht Wurzbacher, Christian Hawkes, Jeffrey A. Einarsdóttir, Karólina Rautio, Milla Stenlid, Jan Peura, Sari 2021 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-468874 https://doi.org/10.1111/gcb.15852 eng eng Uppsala universitet, Analytisk kemi Uppsala universitet, Limnologi Swedish Univ Agr Sci, Dept Forest Mycol & Plant Pathol, Uppsala, Sweden. Univ Quebec Chicoutimi, Dept Sci Fondamentales, Saguenay, PQ, Canada.;Univ Laval, Ctr Northern Studies CEN, Quebec City, PQ, Canada. Tech Univ Munich, Chair Urban Water Syst Engn, Garching, Germany. Univ Quebec Chicoutimi, Dept Sci Fondamentales, Saguenay, PQ, Canada.;Univ Laval, Ctr Northern Studies CEN, Quebec City, PQ, Canada.;Univ Montreal, Grp Interuniv Res Limnol & Aquat Environm GRIL, Montreal, PQ, Canada. Wiley Global Change Biology, 1354-1013, 2021, 27:22, s. 5889-5906 orcid:0000-0002-7768-7133 orcid:0000-0002-9627-6428 orcid:0000-0003-0664-2242 orcid:0000-0001-9842-0158 orcid:0000-0002-2375-9082 orcid:0000-0002-5344-2094 orcid:0000-0003-3892-8157 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-468874 doi:10.1111/gcb.15852 PMID 34462999 ISI:000691025200001 info:eu-repo/semantics/openAccess aquatic fungi Arctic dissolved organic matter fungal diversity permafrost thaw thermokarst ponds Environmental Sciences Miljövetenskap Ecology Ekologi Article in journal info:eu-repo/semantics/article text 2021 ftuppsalauniv https://doi.org/10.1111/gcb.15852 2024-01-17T23:32:47Z 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 Climate change Greenland permafrost Thermokarst Alaska Siberia Uppsala University: Publications (DiVA) Arctic Canada Greenland Global Change Biology 27 22 5889 5906 |
institution |
Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
aquatic fungi Arctic dissolved organic matter fungal diversity permafrost thaw thermokarst ponds Environmental Sciences Miljövetenskap Ecology Ekologi |
spellingShingle |
aquatic fungi Arctic dissolved organic matter fungal diversity permafrost thaw thermokarst ponds Environmental Sciences Miljövetenskap Ecology Ekologi Kluge, Mariana Wauthy, Maxime Clemmensen, Karina Engelbrecht Wurzbacher, Christian Hawkes, Jeffrey A. Einarsdóttir, Karólina Rautio, Milla Stenlid, Jan Peura, Sari Declining fungal diversity in Arctic freshwaters along a permafrost thaw gradient |
topic_facet |
aquatic fungi Arctic dissolved organic matter fungal diversity permafrost thaw thermokarst ponds Environmental Sciences Miljövetenskap Ecology Ekologi |
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 Clemmensen, Karina Engelbrecht Wurzbacher, Christian Hawkes, Jeffrey A. Einarsdóttir, Karólina Rautio, Milla Stenlid, Jan Peura, Sari |
author_facet |
Kluge, Mariana Wauthy, Maxime Clemmensen, Karina Engelbrecht Wurzbacher, Christian Hawkes, Jeffrey A. Einarsdóttir, Karólina 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 |
publisher |
Uppsala universitet, Analytisk kemi |
publishDate |
2021 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-468874 https://doi.org/10.1111/gcb.15852 |
geographic |
Arctic Canada Greenland |
geographic_facet |
Arctic Canada Greenland |
genre |
Arctic Climate change Greenland permafrost Thermokarst Alaska Siberia |
genre_facet |
Arctic Climate change Greenland permafrost Thermokarst Alaska Siberia |
op_relation |
Global Change Biology, 1354-1013, 2021, 27:22, s. 5889-5906 orcid:0000-0002-7768-7133 orcid:0000-0002-9627-6428 orcid:0000-0003-0664-2242 orcid:0000-0001-9842-0158 orcid:0000-0002-2375-9082 orcid:0000-0002-5344-2094 orcid:0000-0003-3892-8157 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-468874 doi:10.1111/gcb.15852 PMID 34462999 ISI:000691025200001 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/gcb.15852 |
container_title |
Global Change Biology |
container_volume |
27 |
container_issue |
22 |
container_start_page |
5889 |
op_container_end_page |
5906 |
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1790595931064762368 |