Climate-related changes of soil characteristics affect bacterial community composition and function of high altitude and latitude lakes
Lakes at high altitude and latitude are typically unproductive ecosystems where external factors outweigh the relative importance of in-lake processes, making them ideal sentinels of climate change. Climate change is inducing upward vegetation shifts at high altitude and latitude regions that transl...
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Uppsala universitet, Limnologi
2017
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-322511 https://doi.org/10.1111/gcb.13545 |
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ftuppsalauniv:oai:DiVA.org:uu-322511 2023-05-15T18:28:18+02:00 Climate-related changes of soil characteristics affect bacterial community composition and function of high altitude and latitude lakes Rofner, Carina Peter, Hannes Catalán, Núria Drewes, Fabian Sommaruga, Ruben Perez, Maria Teresa 2017 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-322511 https://doi.org/10.1111/gcb.13545 eng eng Uppsala universitet, Limnologi Univ Innsbruck, Inst Ecol, Lake & Glacier Ecol Res Grp, Technikerstr 25, Innsbruck, Austria. Univ Innsbruck, Inst Ecol, Lake & Glacier Ecol Res Grp, Technikerstr 25, Innsbruck, Austria.;Ecole Polytech Fed Lausanne, Stream Biofilm & Ecosyst Res Lab, Lausanne, Switzerland. Catalan Inst Water Res ICRA, Emili Grahit 101, Girona 17003, Spain Univ Innsbruck, Inst Ecol, Lake & Glacier Ecol Res Grp, Technikerstr 25, Innsbruck, Austria.;Angew Gewasserokol GesmbH, ARGE Limnol, Innsbruck, Austria. Global Change Biology, 1354-1013, 2017, 23:6, s. 2331-2344 info:eu-repo/grantAgreement/EC/FP7/262693 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-322511 doi:10.1111/gcb.13545 PMID 27801530 ISI:000400445900018 info:eu-repo/semantics/openAccess allochthonous organic carbon bacterial production dissolved organic matter diversity heterotrophic phosphorus limitation terrestrial vegetation treeline Ecology Ekologi Article in journal info:eu-repo/semantics/article text 2017 ftuppsalauniv https://doi.org/10.1111/gcb.13545 2023-02-23T21:36:30Z Lakes at high altitude and latitude are typically unproductive ecosystems where external factors outweigh the relative importance of in-lake processes, making them ideal sentinels of climate change. Climate change is inducing upward vegetation shifts at high altitude and latitude regions that translate into changes in the pools of soil organic matter. Upon mobilization, this allochthonous organic matter may rapidly alter the composition and function of lake bacterial communities. Here, we experimentally simulate this potential climate-change effect by exposing bacterioplankton of two lakes located above the treeline, one in the Alps and one in the subarctic region, to soil organic matter from below and above the treeline. Changes in bacterial community composition, diversity and function were followed for 72 h. In the subarctic lake, soil organic matter from below the treeline reduced bulk and taxon-specific phosphorus uptake, indicating that bacterial phosphorus limitation was alleviated compared to organic matter from above the treeline. These effects were less pronounced in the alpine lake, suggesting that soil properties (phosphorus and dissolved organic carbon availability) and water temperature further shaped the magnitude of response. The rapid bacterial succession observed in both lakes indicates that certain taxa directly benefited from soil sources. Accordingly, the substrate uptake profiles of initially rare bacteria (copiotrophs) indicated that they are one of the main actors cycling soil-derived carbon and phosphorus. Our work suggests that climate-induced changes in soil characteristics affect bacterioplankton community structure and function, and in turn, the cycling of carbon and phosphorus in high altitude and latitude aquatic ecosystems. Article in Journal/Newspaper Subarctic Uppsala University: Publications (DiVA) Alpine Lake ENVELOPE(-129.182,-129.182,55.529,55.529) Global Change Biology 23 6 2331 2344 |
institution |
Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
allochthonous organic carbon bacterial production dissolved organic matter diversity heterotrophic phosphorus limitation terrestrial vegetation treeline Ecology Ekologi |
spellingShingle |
allochthonous organic carbon bacterial production dissolved organic matter diversity heterotrophic phosphorus limitation terrestrial vegetation treeline Ecology Ekologi Rofner, Carina Peter, Hannes Catalán, Núria Drewes, Fabian Sommaruga, Ruben Perez, Maria Teresa Climate-related changes of soil characteristics affect bacterial community composition and function of high altitude and latitude lakes |
topic_facet |
allochthonous organic carbon bacterial production dissolved organic matter diversity heterotrophic phosphorus limitation terrestrial vegetation treeline Ecology Ekologi |
description |
Lakes at high altitude and latitude are typically unproductive ecosystems where external factors outweigh the relative importance of in-lake processes, making them ideal sentinels of climate change. Climate change is inducing upward vegetation shifts at high altitude and latitude regions that translate into changes in the pools of soil organic matter. Upon mobilization, this allochthonous organic matter may rapidly alter the composition and function of lake bacterial communities. Here, we experimentally simulate this potential climate-change effect by exposing bacterioplankton of two lakes located above the treeline, one in the Alps and one in the subarctic region, to soil organic matter from below and above the treeline. Changes in bacterial community composition, diversity and function were followed for 72 h. In the subarctic lake, soil organic matter from below the treeline reduced bulk and taxon-specific phosphorus uptake, indicating that bacterial phosphorus limitation was alleviated compared to organic matter from above the treeline. These effects were less pronounced in the alpine lake, suggesting that soil properties (phosphorus and dissolved organic carbon availability) and water temperature further shaped the magnitude of response. The rapid bacterial succession observed in both lakes indicates that certain taxa directly benefited from soil sources. Accordingly, the substrate uptake profiles of initially rare bacteria (copiotrophs) indicated that they are one of the main actors cycling soil-derived carbon and phosphorus. Our work suggests that climate-induced changes in soil characteristics affect bacterioplankton community structure and function, and in turn, the cycling of carbon and phosphorus in high altitude and latitude aquatic ecosystems. |
format |
Article in Journal/Newspaper |
author |
Rofner, Carina Peter, Hannes Catalán, Núria Drewes, Fabian Sommaruga, Ruben Perez, Maria Teresa |
author_facet |
Rofner, Carina Peter, Hannes Catalán, Núria Drewes, Fabian Sommaruga, Ruben Perez, Maria Teresa |
author_sort |
Rofner, Carina |
title |
Climate-related changes of soil characteristics affect bacterial community composition and function of high altitude and latitude lakes |
title_short |
Climate-related changes of soil characteristics affect bacterial community composition and function of high altitude and latitude lakes |
title_full |
Climate-related changes of soil characteristics affect bacterial community composition and function of high altitude and latitude lakes |
title_fullStr |
Climate-related changes of soil characteristics affect bacterial community composition and function of high altitude and latitude lakes |
title_full_unstemmed |
Climate-related changes of soil characteristics affect bacterial community composition and function of high altitude and latitude lakes |
title_sort |
climate-related changes of soil characteristics affect bacterial community composition and function of high altitude and latitude lakes |
publisher |
Uppsala universitet, Limnologi |
publishDate |
2017 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-322511 https://doi.org/10.1111/gcb.13545 |
long_lat |
ENVELOPE(-129.182,-129.182,55.529,55.529) |
geographic |
Alpine Lake |
geographic_facet |
Alpine Lake |
genre |
Subarctic |
genre_facet |
Subarctic |
op_relation |
Global Change Biology, 1354-1013, 2017, 23:6, s. 2331-2344 info:eu-repo/grantAgreement/EC/FP7/262693 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-322511 doi:10.1111/gcb.13545 PMID 27801530 ISI:000400445900018 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/gcb.13545 |
container_title |
Global Change Biology |
container_volume |
23 |
container_issue |
6 |
container_start_page |
2331 |
op_container_end_page |
2344 |
_version_ |
1766210709839937536 |