Bacterial succession in Antarctic soils of two glacier forefields on Larsemann Hills, East Antarctica.
Antarctic glacier forefields are extreme environments and pioneer sites for ecological succession. Increasing temperatures due to global warming lead to enhanced deglaciation processes in cold-affected habitats, and new terrain is becoming exposed to soil formation and microbial colonization. Howeve...
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ftawi:oai:epic.awi.de:30887 2024-09-15T17:45:34+00:00 Bacterial succession in Antarctic soils of two glacier forefields on Larsemann Hills, East Antarctica. Bajerski, Felizitas Wagner, Dirk 2013-07 https://epic.awi.de/id/eprint/30887/ https://hdl.handle.net/10013/epic.42737 unknown WILEY-BLACKWELL PUBLISHING Bajerski, F. and Wagner, D. (2013) Bacterial succession in Antarctic soils of two glacier forefields on Larsemann Hills, East Antarctica. , FEMS Microbiology Ecology, 85 (1), pp. 128-142 . doi:10.1111/1574-6941.12105 <https://doi.org/10.1111/1574-6941.12105> , hdl:10013/epic.42737 EPIC3FEMS Microbiology Ecology, WILEY-BLACKWELL PUBLISHING, 85(1), pp. 128-142 Article isiRev 2013 ftawi https://doi.org/10.1111/1574-6941.12105 2024-06-24T04:05:07Z Antarctic glacier forefields are extreme environments and pioneer sites for ecological succession. Increasing temperatures due to global warming lead to enhanced deglaciation processes in cold-affected habitats, and new terrain is becoming exposed to soil formation and microbial colonization. However, only little is known about the impact of environmental changes on microbial communities and how they develop in connection to shifting habitat characteristics. In this study, using a combination of molecular and geochemical analysis, we determine the structure and development of bacterial communities depending on soil parameters in two different glacier forefields on Larsemann Hills, East Antarctica. Our results demonstrate that deglaciation-dependent habitat formation, resulting in a gradient in soil moisture, pH and conductivity, leads to an orderly bacterial succession for some groups, for example Cyanobacteria, Bacteroidetes and Deltaproteobacteria in a transect representing ‘classical’ glacier forefields. A variable bacterial distribution and different composed communities were revealed according to soil heterogeneity in a slightly ‘matured’ glacier forefield transect, where Gemmatimonadetes, Flavobacteria, Gamma- and Deltaproteobacteria occur depending on water availability and soil depth. Actinobacteria are dominant in both sites with dominance connected to certain trace elements in the glacier forefields. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) FEMS Microbiology Ecology 85 1 128 142 |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
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description |
Antarctic glacier forefields are extreme environments and pioneer sites for ecological succession. Increasing temperatures due to global warming lead to enhanced deglaciation processes in cold-affected habitats, and new terrain is becoming exposed to soil formation and microbial colonization. However, only little is known about the impact of environmental changes on microbial communities and how they develop in connection to shifting habitat characteristics. In this study, using a combination of molecular and geochemical analysis, we determine the structure and development of bacterial communities depending on soil parameters in two different glacier forefields on Larsemann Hills, East Antarctica. Our results demonstrate that deglaciation-dependent habitat formation, resulting in a gradient in soil moisture, pH and conductivity, leads to an orderly bacterial succession for some groups, for example Cyanobacteria, Bacteroidetes and Deltaproteobacteria in a transect representing ‘classical’ glacier forefields. A variable bacterial distribution and different composed communities were revealed according to soil heterogeneity in a slightly ‘matured’ glacier forefield transect, where Gemmatimonadetes, Flavobacteria, Gamma- and Deltaproteobacteria occur depending on water availability and soil depth. Actinobacteria are dominant in both sites with dominance connected to certain trace elements in the glacier forefields. |
format |
Article in Journal/Newspaper |
author |
Bajerski, Felizitas Wagner, Dirk |
spellingShingle |
Bajerski, Felizitas Wagner, Dirk Bacterial succession in Antarctic soils of two glacier forefields on Larsemann Hills, East Antarctica. |
author_facet |
Bajerski, Felizitas Wagner, Dirk |
author_sort |
Bajerski, Felizitas |
title |
Bacterial succession in Antarctic soils of two glacier forefields on Larsemann Hills, East Antarctica. |
title_short |
Bacterial succession in Antarctic soils of two glacier forefields on Larsemann Hills, East Antarctica. |
title_full |
Bacterial succession in Antarctic soils of two glacier forefields on Larsemann Hills, East Antarctica. |
title_fullStr |
Bacterial succession in Antarctic soils of two glacier forefields on Larsemann Hills, East Antarctica. |
title_full_unstemmed |
Bacterial succession in Antarctic soils of two glacier forefields on Larsemann Hills, East Antarctica. |
title_sort |
bacterial succession in antarctic soils of two glacier forefields on larsemann hills, east antarctica. |
publisher |
WILEY-BLACKWELL PUBLISHING |
publishDate |
2013 |
url |
https://epic.awi.de/id/eprint/30887/ https://hdl.handle.net/10013/epic.42737 |
genre |
Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica |
op_source |
EPIC3FEMS Microbiology Ecology, WILEY-BLACKWELL PUBLISHING, 85(1), pp. 128-142 |
op_relation |
Bajerski, F. and Wagner, D. (2013) Bacterial succession in Antarctic soils of two glacier forefields on Larsemann Hills, East Antarctica. , FEMS Microbiology Ecology, 85 (1), pp. 128-142 . doi:10.1111/1574-6941.12105 <https://doi.org/10.1111/1574-6941.12105> , hdl:10013/epic.42737 |
op_doi |
https://doi.org/10.1111/1574-6941.12105 |
container_title |
FEMS Microbiology Ecology |
container_volume |
85 |
container_issue |
1 |
container_start_page |
128 |
op_container_end_page |
142 |
_version_ |
1810493450083106816 |