Changes in bacterioplankton community structure during early lake ontogeny resulting from the retreat of the Greenland Ice Sheet
Retreating glaciers and ice sheets are among the clearest signs of global climate change. One consequence of glacier retreat is the formation of new meltwater-lakes in previously ice-covered terrain. These lakes provide unique opportunities to understand patterns in community organization during ear...
Published in: | The ISME Journal |
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Language: | English |
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Online Access: | https://pure.au.dk/portal/da/publications/changes-in-bacterioplankton-community-structure-during-early-lake-ontogeny-resulting-from-the-retreat-of-the-greenland-ice-sheet(a89a37f9-eb88-47f5-a391-c62e58596d24).html https://doi.org/10.1038/ismej.2017.191 https://pure.au.dk/ws/files/165153453/ismej2017191.pdf |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/a89a37f9-eb88-47f5-a391-c62e58596d24 2023-11-12T04:17:28+01:00 Changes in bacterioplankton community structure during early lake ontogeny resulting from the retreat of the Greenland Ice Sheet Peter, Hannes Jeppesen, Erik De Meester, Luc Sommaruga, Ruben 2018-02 application/pdf https://pure.au.dk/portal/da/publications/changes-in-bacterioplankton-community-structure-during-early-lake-ontogeny-resulting-from-the-retreat-of-the-greenland-ice-sheet(a89a37f9-eb88-47f5-a391-c62e58596d24).html https://doi.org/10.1038/ismej.2017.191 https://pure.au.dk/ws/files/165153453/ismej2017191.pdf eng eng https://pure.au.dk/portal/da/publications/changes-in-bacterioplankton-community-structure-during-early-lake-ontogeny-resulting-from-the-retreat-of-the-greenland-ice-sheet(a89a37f9-eb88-47f5-a391-c62e58596d24).html info:eu-repo/semantics/openAccess Peter , H , Jeppesen , E , De Meester , L & Sommaruga , R 2018 , ' Changes in bacterioplankton community structure during early lake ontogeny resulting from the retreat of the Greenland Ice Sheet ' , I S M E Journal , vol. 12 , no. 2 , pp. 544-555 . https://doi.org/10.1038/ismej.2017.191 DISSOLVED ORGANIC-MATTER GLACIER-FED STREAMS RARE BIOSPHERE RIBOSOMAL-RNA MELTWATER ECOLOGY MARINE ENVIRONMENT DIVERSITY EXPORT article 2018 ftuniaarhuspubl https://doi.org/10.1038/ismej.2017.191 2023-11-01T23:59:03Z Retreating glaciers and ice sheets are among the clearest signs of global climate change. One consequence of glacier retreat is the formation of new meltwater-lakes in previously ice-covered terrain. These lakes provide unique opportunities to understand patterns in community organization during early lake ontogeny. Here, we analyzed the bacterial community structure and diversity in six lakes recently formed by the retreat of the Greenland Ice Sheet (GrIS). The lakes represented a turbidity gradient depending on their past and present connectivity to the GrIS meltwaters. Bulk (16S rRNA genes) and putatively active (16S rRNA) fractions of the bacterioplankton communities were structured by changes in environmental conditions associated to the turbidity gradient. Differences in community structure among lakes were attributed to both, rare and abundant community members. Further, positive co-occurrence relationships among phylogenetically closely related community members dominate in these lakes. Our results show that environmental conditions along the turbidity gradient structure bacterial community composition, which shifts during lake ontogeny. Rare taxa contribute to these shifts, suggesting that the rare biosphere has an important ecological role during early lakes ontogeny. Members of the rare biosphere may be adapted to the transient niches in these nutrient poor lakes. The directionality and phylogenetic structure of co-occurrence relationships indicate that competitive interactions among closely related taxa may be important in the most turbid lakes. Article in Journal/Newspaper glacier Greenland Ice Sheet Aarhus University: Research Greenland The ISME Journal 12 2 544 555 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
DISSOLVED ORGANIC-MATTER GLACIER-FED STREAMS RARE BIOSPHERE RIBOSOMAL-RNA MELTWATER ECOLOGY MARINE ENVIRONMENT DIVERSITY EXPORT |
spellingShingle |
DISSOLVED ORGANIC-MATTER GLACIER-FED STREAMS RARE BIOSPHERE RIBOSOMAL-RNA MELTWATER ECOLOGY MARINE ENVIRONMENT DIVERSITY EXPORT Peter, Hannes Jeppesen, Erik De Meester, Luc Sommaruga, Ruben Changes in bacterioplankton community structure during early lake ontogeny resulting from the retreat of the Greenland Ice Sheet |
topic_facet |
DISSOLVED ORGANIC-MATTER GLACIER-FED STREAMS RARE BIOSPHERE RIBOSOMAL-RNA MELTWATER ECOLOGY MARINE ENVIRONMENT DIVERSITY EXPORT |
description |
Retreating glaciers and ice sheets are among the clearest signs of global climate change. One consequence of glacier retreat is the formation of new meltwater-lakes in previously ice-covered terrain. These lakes provide unique opportunities to understand patterns in community organization during early lake ontogeny. Here, we analyzed the bacterial community structure and diversity in six lakes recently formed by the retreat of the Greenland Ice Sheet (GrIS). The lakes represented a turbidity gradient depending on their past and present connectivity to the GrIS meltwaters. Bulk (16S rRNA genes) and putatively active (16S rRNA) fractions of the bacterioplankton communities were structured by changes in environmental conditions associated to the turbidity gradient. Differences in community structure among lakes were attributed to both, rare and abundant community members. Further, positive co-occurrence relationships among phylogenetically closely related community members dominate in these lakes. Our results show that environmental conditions along the turbidity gradient structure bacterial community composition, which shifts during lake ontogeny. Rare taxa contribute to these shifts, suggesting that the rare biosphere has an important ecological role during early lakes ontogeny. Members of the rare biosphere may be adapted to the transient niches in these nutrient poor lakes. The directionality and phylogenetic structure of co-occurrence relationships indicate that competitive interactions among closely related taxa may be important in the most turbid lakes. |
format |
Article in Journal/Newspaper |
author |
Peter, Hannes Jeppesen, Erik De Meester, Luc Sommaruga, Ruben |
author_facet |
Peter, Hannes Jeppesen, Erik De Meester, Luc Sommaruga, Ruben |
author_sort |
Peter, Hannes |
title |
Changes in bacterioplankton community structure during early lake ontogeny resulting from the retreat of the Greenland Ice Sheet |
title_short |
Changes in bacterioplankton community structure during early lake ontogeny resulting from the retreat of the Greenland Ice Sheet |
title_full |
Changes in bacterioplankton community structure during early lake ontogeny resulting from the retreat of the Greenland Ice Sheet |
title_fullStr |
Changes in bacterioplankton community structure during early lake ontogeny resulting from the retreat of the Greenland Ice Sheet |
title_full_unstemmed |
Changes in bacterioplankton community structure during early lake ontogeny resulting from the retreat of the Greenland Ice Sheet |
title_sort |
changes in bacterioplankton community structure during early lake ontogeny resulting from the retreat of the greenland ice sheet |
publishDate |
2018 |
url |
https://pure.au.dk/portal/da/publications/changes-in-bacterioplankton-community-structure-during-early-lake-ontogeny-resulting-from-the-retreat-of-the-greenland-ice-sheet(a89a37f9-eb88-47f5-a391-c62e58596d24).html https://doi.org/10.1038/ismej.2017.191 https://pure.au.dk/ws/files/165153453/ismej2017191.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet |
genre_facet |
glacier Greenland Ice Sheet |
op_source |
Peter , H , Jeppesen , E , De Meester , L & Sommaruga , R 2018 , ' Changes in bacterioplankton community structure during early lake ontogeny resulting from the retreat of the Greenland Ice Sheet ' , I S M E Journal , vol. 12 , no. 2 , pp. 544-555 . https://doi.org/10.1038/ismej.2017.191 |
op_relation |
https://pure.au.dk/portal/da/publications/changes-in-bacterioplankton-community-structure-during-early-lake-ontogeny-resulting-from-the-retreat-of-the-greenland-ice-sheet(a89a37f9-eb88-47f5-a391-c62e58596d24).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/ismej.2017.191 |
container_title |
The ISME Journal |
container_volume |
12 |
container_issue |
2 |
container_start_page |
544 |
op_container_end_page |
555 |
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1782334352335568896 |