Arctic bacterial diversity and connectivity in the coastal margin of the Last Ice Area
Arctic climate change is leading to sea-ice attrition in the Last Ice Area along the northern coast of Canada and Greenland, but less attention has been given to the associated land-based ecosystems. Here we evaluated bacterial community structure in a hydrologically coupled cryo-ecosystem in the re...
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Online Access: | https://constellation.uqac.ca/id/eprint/9508/1/s43705-023-00313-w.pdf https://doi.org/10.1038/s43705-023-00313-w |
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ftunivquebecchic:oai:constellation.uqac.ca:9508 2023-11-05T03:37:45+01:00 Arctic bacterial diversity and connectivity in the coastal margin of the Last Ice Area Girard, Catherine Vincent, Warwick F. Culley, Alexander I. 2023-09-26 application/pdf https://constellation.uqac.ca/id/eprint/9508/1/s43705-023-00313-w.pdf https://doi.org/10.1038/s43705-023-00313-w en eng https://constellation.uqac.ca/id/eprint/9508/ http://dx.doi.org/doi:10.1038/s43705-023-00313-w doi:10.1038/s43705-023-00313-w https://constellation.uqac.ca/id/eprint/9508/1/s43705-023-00313-w.pdf Girard Catherine, Vincent Warwick F. et Culley Alexander I. (2023). Arctic bacterial diversity and connectivity in the coastal margin of the Last Ice Area. ISME Communications, 3, e105. cc_by Climatologie et météorologie Biologie et autres sciences connexes Microbial ecology biodiversity biogeography climate-change ecology Article publié dans une revue avec comité d'évaluation Évalué par les pairs 2023 ftunivquebecchic https://doi.org/10.1038/s43705-023-00313-w 2023-10-07T22:13:38Z Arctic climate change is leading to sea-ice attrition in the Last Ice Area along the northern coast of Canada and Greenland, but less attention has been given to the associated land-based ecosystems. Here we evaluated bacterial community structure in a hydrologically coupled cryo-ecosystem in the region: Thores Glacier, proglacial Thores Lake, and its outlet to the sea. Deep amplicon sequencing revealed that Polaromonas was ubiquitous, but differed genetically among diverse niches. Surface glacier-ice was dominated by Cyanobacteria, while the perennially ice-capped, well-mixed water column of Thores Lake had a unique assemblage of Chloroflexi, Actinobacteriota, and Planctomycetota. Species richness increased downstream, but glacier microbes were little detected in the lake, suggesting strong taxonomic sorting. Ongoing climate change and the retreat of Thores Glacier would lead to complete drainage and loss of the lake microbial ecosystem, indicating the extreme vulnerability of diverse cryohabitats and unique microbiomes in the Last Ice coastal margin. Article in Journal/Newspaper Arctic Arctic Climate change glacier glacier* Greenland Sea ice Université du Québec à Chicoutimi (UQAC): Constellation ISME Communications 3 1 |
institution |
Open Polar |
collection |
Université du Québec à Chicoutimi (UQAC): Constellation |
op_collection_id |
ftunivquebecchic |
language |
English |
topic |
Climatologie et météorologie Biologie et autres sciences connexes Microbial ecology biodiversity biogeography climate-change ecology |
spellingShingle |
Climatologie et météorologie Biologie et autres sciences connexes Microbial ecology biodiversity biogeography climate-change ecology Girard, Catherine Vincent, Warwick F. Culley, Alexander I. Arctic bacterial diversity and connectivity in the coastal margin of the Last Ice Area |
topic_facet |
Climatologie et météorologie Biologie et autres sciences connexes Microbial ecology biodiversity biogeography climate-change ecology |
description |
Arctic climate change is leading to sea-ice attrition in the Last Ice Area along the northern coast of Canada and Greenland, but less attention has been given to the associated land-based ecosystems. Here we evaluated bacterial community structure in a hydrologically coupled cryo-ecosystem in the region: Thores Glacier, proglacial Thores Lake, and its outlet to the sea. Deep amplicon sequencing revealed that Polaromonas was ubiquitous, but differed genetically among diverse niches. Surface glacier-ice was dominated by Cyanobacteria, while the perennially ice-capped, well-mixed water column of Thores Lake had a unique assemblage of Chloroflexi, Actinobacteriota, and Planctomycetota. Species richness increased downstream, but glacier microbes were little detected in the lake, suggesting strong taxonomic sorting. Ongoing climate change and the retreat of Thores Glacier would lead to complete drainage and loss of the lake microbial ecosystem, indicating the extreme vulnerability of diverse cryohabitats and unique microbiomes in the Last Ice coastal margin. |
format |
Article in Journal/Newspaper |
author |
Girard, Catherine Vincent, Warwick F. Culley, Alexander I. |
author_facet |
Girard, Catherine Vincent, Warwick F. Culley, Alexander I. |
author_sort |
Girard, Catherine |
title |
Arctic bacterial diversity and connectivity in the coastal margin of the Last Ice Area |
title_short |
Arctic bacterial diversity and connectivity in the coastal margin of the Last Ice Area |
title_full |
Arctic bacterial diversity and connectivity in the coastal margin of the Last Ice Area |
title_fullStr |
Arctic bacterial diversity and connectivity in the coastal margin of the Last Ice Area |
title_full_unstemmed |
Arctic bacterial diversity and connectivity in the coastal margin of the Last Ice Area |
title_sort |
arctic bacterial diversity and connectivity in the coastal margin of the last ice area |
publishDate |
2023 |
url |
https://constellation.uqac.ca/id/eprint/9508/1/s43705-023-00313-w.pdf https://doi.org/10.1038/s43705-023-00313-w |
genre |
Arctic Arctic Climate change glacier glacier* Greenland Sea ice |
genre_facet |
Arctic Arctic Climate change glacier glacier* Greenland Sea ice |
op_relation |
https://constellation.uqac.ca/id/eprint/9508/ http://dx.doi.org/doi:10.1038/s43705-023-00313-w doi:10.1038/s43705-023-00313-w https://constellation.uqac.ca/id/eprint/9508/1/s43705-023-00313-w.pdf Girard Catherine, Vincent Warwick F. et Culley Alexander I. (2023). Arctic bacterial diversity and connectivity in the coastal margin of the Last Ice Area. ISME Communications, 3, e105. |
op_rights |
cc_by |
op_doi |
https://doi.org/10.1038/s43705-023-00313-w |
container_title |
ISME Communications |
container_volume |
3 |
container_issue |
1 |
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1781693464412422144 |