Impacts of climate warming on Alpine lake biota over the past decade
Alpine temperatures have risen at twice the rate compared to the northern-hemispheric average during the past century. This can be expected to affect Alpine lake ecosystems via, for example, intensified thermal stratification, shorter ice cover periods, and altered catchment processes. Our study ass...
Published in: | Arctic, Antarctic, and Alpine Research |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/326388 2024-01-07T09:40:15+01:00 Impacts of climate warming on Alpine lake biota over the past decade Weckstrom, K. Weckstrom, J. Huber, K. Kamenik, C. Schmidt, R. Salvenmoser, W. Rieradevall, M. Weisse, T. Psenner, R. Kurmayer, R. Environmental Sciences Environmental Change Research Unit (ECRU) 2021-02-12T09:31:01Z 16 application/pdf http://hdl.handle.net/10138/326388 eng eng INST ARCTIC ALPINE RES 10.1657/AAAR0015-058 The intensive field work would not have been possible without the technical assistance provided by the Research Institute for Limnology, Mondsee: Stephan Blank, Harald Ficker, Hannes Hollerer, Ulrike Koll, Hans Knoll, Karl Maier, Stefan Mayr,Veronika Ostermaier, Harald Ployer, Ulrike Scheffel, Peter Stadler, Sabine Wanzenbock, and Anneliese Wiedlroither assisted during the field expeditions. Li Deng assisted in preparation of the map shown in Figure 1. Verena Schaidraiter analyzed the temperature data during her B.Sc. thesis (Univ.of Salzburg). We are most grateful to Josef Franzoi (Inst. of Ecology, Innsbruck) for chemistry analysis, and to Thomas Ostermann (Inst. of Zoology, Innsbruck) for their assistance with the REM. This work was funded by the Nationalkomitee Alpenforschung of the Austrian Academy of Sciences, project DETECTIVE (DEcadal deTECTion of biodIVErsity in alpine lakes). Weckstrom , K , Weckstrom , J , Huber , K , Kamenik , C , Schmidt , R , Salvenmoser , W , Rieradevall , M , Weisse , T , Psenner , R & Kurmayer , R 2016 , ' Impacts of climate warming on Alpine lake biota over the past decade ' , Arctic, Antarctic, and Alpine Research , vol. 48 , no. 2 , pp. 361-376 . https://doi.org/10.1657/AAAR0015-058 ORCID: /0000-0002-3889-0788/work/47606220 ORCID: /0000-0001-5604-617X/work/39203168 85009743303 9d60046f-0ae9-4cd2-8b1e-7a1e10a20a55 http://hdl.handle.net/10138/326388 000376226700010 unspecified openAccess info:eu-repo/semantics/openAccess CHRYSOPHYTE CYST ASSEMBLAGES REMOTE MOUNTAIN LAKES WINTER/SPRING CLIMATE ENVIRONMENTAL-CHANGES WATER CHEMISTRY EUROPEAN LAKES ARCTIC LAKES ALPS RECONSTRUCTION TEMPERATURE 1172 Environmental sciences Article acceptedVersion 2021 ftunivhelsihelda 2023-12-14T00:09:42Z Alpine temperatures have risen at twice the rate compared to the northern-hemispheric average during the past century. This can be expected to affect Alpine lake ecosystems via, for example, intensified thermal stratification, shorter ice cover periods, and altered catchment processes. Our study assesses changes in some main constituents of the plank tic and benthic communities of five mid-Alpine lakes in the Niedere Tauern region in Austria in relation to climatic warming, by comparing community and environmental data from 1998-1999 to data from 2010-2011. Although lake chemistry remained relatively stable between the study periods, we observed an increase in lake water temperatures and a decrease in ice cover durations. Several of the dominant diatom species and chrysophyte cyst types show relatively clear changes; the responses of the whole communities, however, are less evident. Yet, in particular, diatoms show distinct assemblage changes along the climatic gradients in the two lakes with the largest decrease in ice-cover duration. Chironomid communities appear to be less sensitive compared to diatoms and chrysophyte cysts, which are known for reacting quickly to changes in their environment. Finally, Alpine lakes, which are moderately nutrient-enriched because of human activities in the catchment area, are likely to experience increases in their productivity with climate warming. Peer reviewed Article in Journal/Newspaper Antarctic and Alpine Research Arctic Arctic HELDA – University of Helsinki Open Repository Alpine Lake ENVELOPE(-129.182,-129.182,55.529,55.529) Arctic Arctic, Antarctic, and Alpine Research 48 2 361 376 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
CHRYSOPHYTE CYST ASSEMBLAGES REMOTE MOUNTAIN LAKES WINTER/SPRING CLIMATE ENVIRONMENTAL-CHANGES WATER CHEMISTRY EUROPEAN LAKES ARCTIC LAKES ALPS RECONSTRUCTION TEMPERATURE 1172 Environmental sciences |
spellingShingle |
CHRYSOPHYTE CYST ASSEMBLAGES REMOTE MOUNTAIN LAKES WINTER/SPRING CLIMATE ENVIRONMENTAL-CHANGES WATER CHEMISTRY EUROPEAN LAKES ARCTIC LAKES ALPS RECONSTRUCTION TEMPERATURE 1172 Environmental sciences Weckstrom, K. Weckstrom, J. Huber, K. Kamenik, C. Schmidt, R. Salvenmoser, W. Rieradevall, M. Weisse, T. Psenner, R. Kurmayer, R. Impacts of climate warming on Alpine lake biota over the past decade |
topic_facet |
CHRYSOPHYTE CYST ASSEMBLAGES REMOTE MOUNTAIN LAKES WINTER/SPRING CLIMATE ENVIRONMENTAL-CHANGES WATER CHEMISTRY EUROPEAN LAKES ARCTIC LAKES ALPS RECONSTRUCTION TEMPERATURE 1172 Environmental sciences |
description |
Alpine temperatures have risen at twice the rate compared to the northern-hemispheric average during the past century. This can be expected to affect Alpine lake ecosystems via, for example, intensified thermal stratification, shorter ice cover periods, and altered catchment processes. Our study assesses changes in some main constituents of the plank tic and benthic communities of five mid-Alpine lakes in the Niedere Tauern region in Austria in relation to climatic warming, by comparing community and environmental data from 1998-1999 to data from 2010-2011. Although lake chemistry remained relatively stable between the study periods, we observed an increase in lake water temperatures and a decrease in ice cover durations. Several of the dominant diatom species and chrysophyte cyst types show relatively clear changes; the responses of the whole communities, however, are less evident. Yet, in particular, diatoms show distinct assemblage changes along the climatic gradients in the two lakes with the largest decrease in ice-cover duration. Chironomid communities appear to be less sensitive compared to diatoms and chrysophyte cysts, which are known for reacting quickly to changes in their environment. Finally, Alpine lakes, which are moderately nutrient-enriched because of human activities in the catchment area, are likely to experience increases in their productivity with climate warming. Peer reviewed |
author2 |
Environmental Sciences Environmental Change Research Unit (ECRU) |
format |
Article in Journal/Newspaper |
author |
Weckstrom, K. Weckstrom, J. Huber, K. Kamenik, C. Schmidt, R. Salvenmoser, W. Rieradevall, M. Weisse, T. Psenner, R. Kurmayer, R. |
author_facet |
Weckstrom, K. Weckstrom, J. Huber, K. Kamenik, C. Schmidt, R. Salvenmoser, W. Rieradevall, M. Weisse, T. Psenner, R. Kurmayer, R. |
author_sort |
Weckstrom, K. |
title |
Impacts of climate warming on Alpine lake biota over the past decade |
title_short |
Impacts of climate warming on Alpine lake biota over the past decade |
title_full |
Impacts of climate warming on Alpine lake biota over the past decade |
title_fullStr |
Impacts of climate warming on Alpine lake biota over the past decade |
title_full_unstemmed |
Impacts of climate warming on Alpine lake biota over the past decade |
title_sort |
impacts of climate warming on alpine lake biota over the past decade |
publisher |
INST ARCTIC ALPINE RES |
publishDate |
2021 |
url |
http://hdl.handle.net/10138/326388 |
long_lat |
ENVELOPE(-129.182,-129.182,55.529,55.529) |
geographic |
Alpine Lake Arctic |
geographic_facet |
Alpine Lake Arctic |
genre |
Antarctic and Alpine Research Arctic Arctic |
genre_facet |
Antarctic and Alpine Research Arctic Arctic |
op_relation |
10.1657/AAAR0015-058 The intensive field work would not have been possible without the technical assistance provided by the Research Institute for Limnology, Mondsee: Stephan Blank, Harald Ficker, Hannes Hollerer, Ulrike Koll, Hans Knoll, Karl Maier, Stefan Mayr,Veronika Ostermaier, Harald Ployer, Ulrike Scheffel, Peter Stadler, Sabine Wanzenbock, and Anneliese Wiedlroither assisted during the field expeditions. Li Deng assisted in preparation of the map shown in Figure 1. Verena Schaidraiter analyzed the temperature data during her B.Sc. thesis (Univ.of Salzburg). We are most grateful to Josef Franzoi (Inst. of Ecology, Innsbruck) for chemistry analysis, and to Thomas Ostermann (Inst. of Zoology, Innsbruck) for their assistance with the REM. This work was funded by the Nationalkomitee Alpenforschung of the Austrian Academy of Sciences, project DETECTIVE (DEcadal deTECTion of biodIVErsity in alpine lakes). Weckstrom , K , Weckstrom , J , Huber , K , Kamenik , C , Schmidt , R , Salvenmoser , W , Rieradevall , M , Weisse , T , Psenner , R & Kurmayer , R 2016 , ' Impacts of climate warming on Alpine lake biota over the past decade ' , Arctic, Antarctic, and Alpine Research , vol. 48 , no. 2 , pp. 361-376 . https://doi.org/10.1657/AAAR0015-058 ORCID: /0000-0002-3889-0788/work/47606220 ORCID: /0000-0001-5604-617X/work/39203168 85009743303 9d60046f-0ae9-4cd2-8b1e-7a1e10a20a55 http://hdl.handle.net/10138/326388 000376226700010 |
op_rights |
unspecified openAccess info:eu-repo/semantics/openAccess |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
48 |
container_issue |
2 |
container_start_page |
361 |
op_container_end_page |
376 |
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1787421024109723648 |