Data_Sheet_4_Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions.csv
The reconstruction of past climate variability using physical and geochemical parameters from lake sedimentary records is a well-established and widely used approach. These geological records are also known to contain large and active microbial communities, believed to be responsive to their surroun...
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ftfrontimediafig:oai:figshare.com:article/12704069 2023-05-15T15:11:29+02:00 Data_Sheet_4_Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions.csv Tor Einar Møller Willem G.M. van der Bilt Desiree L. Roerdink Steffen L. Jørgensen 2020-07-24T04:07:25Z https://doi.org/10.3389/fmicb.2020.01520.s004 https://figshare.com/articles/dataset/Data_Sheet_4_Microbial_Community_Structure_in_Arctic_Lake_Sediments_Reflect_Variations_in_Holocene_Climate_Conditions_csv/12704069 unknown doi:10.3389/fmicb.2020.01520.s004 https://figshare.com/articles/dataset/Data_Sheet_4_Microbial_Community_Structure_in_Arctic_Lake_Sediments_Reflect_Variations_in_Holocene_Climate_Conditions_csv/12704069 CC BY 4.0 CC-BY Microbiology Microbial Genetics Microbial Ecology Mycology palaeoclimate Greenland stratification climate sensitivity microbial stratification Dataset 2020 ftfrontimediafig https://doi.org/10.3389/fmicb.2020.01520.s004 2020-07-29T22:55:50Z The reconstruction of past climate variability using physical and geochemical parameters from lake sedimentary records is a well-established and widely used approach. These geological records are also known to contain large and active microbial communities, believed to be responsive to their surroundings at the time of deposition, and proceed to interact intimately with their physical and chemical environment for millennia after deposition. However, less is known about the potential legacy of past climate conditions on the contemporary microbial community structure. We analysed two Holocene-length (past 10 ka BP) sediment cores from the glacier-fed Ymer Lake, located in a highly climate-sensitive region on south-eastern Greenland. By combining physical proxies, solid as well as fluid geochemistry, and microbial population profiling in a comprehensive statistical framework, we show that the microbial community structure clusters according to established lithological units, and thus captures past environmental conditions and climatic transitions. Further, comparative analyses of the two sedimentary records indicates that the manifestation of regional climate depends on local settings such as water column depth, which ultimately constrains microbial variability in the deposited sediments. The strong coupling between physical and geochemical shifts in the lake and microbial variation highlights the potential of molecular microbiological data to strengthen and refine existing sedimentological classifications of past environmental conditions and transitions. Furthermore, this coupling implies that microbially controlled transformation and partitioning of geochemical species (e.g., manganese and sulphate) in Ymer lake today is still affected by climatic conditions that prevailed thousands of years back in time. Dataset Arctic glacier Greenland Frontiers: Figshare Arctic Greenland Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Microbiology Microbial Genetics Microbial Ecology Mycology palaeoclimate Greenland stratification climate sensitivity microbial stratification |
spellingShingle |
Microbiology Microbial Genetics Microbial Ecology Mycology palaeoclimate Greenland stratification climate sensitivity microbial stratification Tor Einar Møller Willem G.M. van der Bilt Desiree L. Roerdink Steffen L. Jørgensen Data_Sheet_4_Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions.csv |
topic_facet |
Microbiology Microbial Genetics Microbial Ecology Mycology palaeoclimate Greenland stratification climate sensitivity microbial stratification |
description |
The reconstruction of past climate variability using physical and geochemical parameters from lake sedimentary records is a well-established and widely used approach. These geological records are also known to contain large and active microbial communities, believed to be responsive to their surroundings at the time of deposition, and proceed to interact intimately with their physical and chemical environment for millennia after deposition. However, less is known about the potential legacy of past climate conditions on the contemporary microbial community structure. We analysed two Holocene-length (past 10 ka BP) sediment cores from the glacier-fed Ymer Lake, located in a highly climate-sensitive region on south-eastern Greenland. By combining physical proxies, solid as well as fluid geochemistry, and microbial population profiling in a comprehensive statistical framework, we show that the microbial community structure clusters according to established lithological units, and thus captures past environmental conditions and climatic transitions. Further, comparative analyses of the two sedimentary records indicates that the manifestation of regional climate depends on local settings such as water column depth, which ultimately constrains microbial variability in the deposited sediments. The strong coupling between physical and geochemical shifts in the lake and microbial variation highlights the potential of molecular microbiological data to strengthen and refine existing sedimentological classifications of past environmental conditions and transitions. Furthermore, this coupling implies that microbially controlled transformation and partitioning of geochemical species (e.g., manganese and sulphate) in Ymer lake today is still affected by climatic conditions that prevailed thousands of years back in time. |
format |
Dataset |
author |
Tor Einar Møller Willem G.M. van der Bilt Desiree L. Roerdink Steffen L. Jørgensen |
author_facet |
Tor Einar Møller Willem G.M. van der Bilt Desiree L. Roerdink Steffen L. Jørgensen |
author_sort |
Tor Einar Møller |
title |
Data_Sheet_4_Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions.csv |
title_short |
Data_Sheet_4_Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions.csv |
title_full |
Data_Sheet_4_Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions.csv |
title_fullStr |
Data_Sheet_4_Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions.csv |
title_full_unstemmed |
Data_Sheet_4_Microbial Community Structure in Arctic Lake Sediments Reflect Variations in Holocene Climate Conditions.csv |
title_sort |
data_sheet_4_microbial community structure in arctic lake sediments reflect variations in holocene climate conditions.csv |
publishDate |
2020 |
url |
https://doi.org/10.3389/fmicb.2020.01520.s004 https://figshare.com/articles/dataset/Data_Sheet_4_Microbial_Community_Structure_in_Arctic_Lake_Sediments_Reflect_Variations_in_Holocene_Climate_Conditions_csv/12704069 |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) |
geographic |
Arctic Greenland Arctic Lake |
geographic_facet |
Arctic Greenland Arctic Lake |
genre |
Arctic glacier Greenland |
genre_facet |
Arctic glacier Greenland |
op_relation |
doi:10.3389/fmicb.2020.01520.s004 https://figshare.com/articles/dataset/Data_Sheet_4_Microbial_Community_Structure_in_Arctic_Lake_Sediments_Reflect_Variations_in_Holocene_Climate_Conditions_csv/12704069 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmicb.2020.01520.s004 |
_version_ |
1766342324119404544 |