Late-Holocene variability in chironomid functional assemblages and carbon utilization in a tundra lake food web
Abstract High latitude freshwater systems are facing changes in catchment-mediated allochthonous input, as well as physical and chemical controls triggered by on-going climate change, which may alter their carbon processing and ecological characteristics. To explore changes in chironomid functional...
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Springer Science and Business Media LLC
2019
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Online Access: | http://dx.doi.org/10.1007/s10750-019-04151-7 http://link.springer.com/content/pdf/10.1007/s10750-019-04151-7.pdf http://link.springer.com/article/10.1007/s10750-019-04151-7/fulltext.html |
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crspringernat:10.1007/s10750-019-04151-7 2023-05-15T17:42:36+02:00 Late-Holocene variability in chironomid functional assemblages and carbon utilization in a tundra lake food web Kivilä, E. Henriikka Luoto, Tomi P. Rantala, Marttiina V. Nevalainen, Liisa Doctoral Programme in Biological and Environmental science of University of Jyväskylä Graduate School for Doctoral Studies Academy of Finland Emil Aaltosen Säätiö 2019 http://dx.doi.org/10.1007/s10750-019-04151-7 http://link.springer.com/content/pdf/10.1007/s10750-019-04151-7.pdf http://link.springer.com/article/10.1007/s10750-019-04151-7/fulltext.html en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Hydrobiologia volume 847, issue 3, page 895-911 ISSN 0018-8158 1573-5117 Aquatic Science journal-article 2019 crspringernat https://doi.org/10.1007/s10750-019-04151-7 2022-01-04T16:49:07Z Abstract High latitude freshwater systems are facing changes in catchment-mediated allochthonous input, as well as physical and chemical controls triggered by on-going climate change, which may alter their carbon processing and ecological characteristics. To explore changes in chironomid functional responses and carbon utilization in relation to long-term environmental change, we studied a sediment core covering ca. 2000 years from a tundra lake in northern Finland, which was analysed for sediment geochemistry, isotopic composition of chironomid remains and their functional assemblages. We aimed to relate changes in chironomid functional feeding assemblages and resource utilization, based on Bayesian stable isotope modelling, and determined that the long-term resource utilization was more controlled by sediment geochemistry (resource availability) and climatic variables, reflecting changes in habitat and lake ontogeny, rather than the functional feeding assemblage composition. Change horizons were observed for both sediment geochemistry and functional assemblage composition. However, different timing of these changes suggests different drivers affecting the dynamics of primary production and chironomid community functionality. We also compared the recent warming period to Medieval Climate Anomaly (MCA), observing divergent patterns, which suggests that MCA may not be a good analogue for changes induced by on-going climate warming. Article in Journal/Newspaper Northern Finland Tundra Springer Nature (via Crossref) Hydrobiologia 847 3 895 911 |
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Springer Nature (via Crossref) |
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language |
English |
topic |
Aquatic Science |
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Aquatic Science Kivilä, E. Henriikka Luoto, Tomi P. Rantala, Marttiina V. Nevalainen, Liisa Late-Holocene variability in chironomid functional assemblages and carbon utilization in a tundra lake food web |
topic_facet |
Aquatic Science |
description |
Abstract High latitude freshwater systems are facing changes in catchment-mediated allochthonous input, as well as physical and chemical controls triggered by on-going climate change, which may alter their carbon processing and ecological characteristics. To explore changes in chironomid functional responses and carbon utilization in relation to long-term environmental change, we studied a sediment core covering ca. 2000 years from a tundra lake in northern Finland, which was analysed for sediment geochemistry, isotopic composition of chironomid remains and their functional assemblages. We aimed to relate changes in chironomid functional feeding assemblages and resource utilization, based on Bayesian stable isotope modelling, and determined that the long-term resource utilization was more controlled by sediment geochemistry (resource availability) and climatic variables, reflecting changes in habitat and lake ontogeny, rather than the functional feeding assemblage composition. Change horizons were observed for both sediment geochemistry and functional assemblage composition. However, different timing of these changes suggests different drivers affecting the dynamics of primary production and chironomid community functionality. We also compared the recent warming period to Medieval Climate Anomaly (MCA), observing divergent patterns, which suggests that MCA may not be a good analogue for changes induced by on-going climate warming. |
author2 |
Doctoral Programme in Biological and Environmental science of University of Jyväskylä Graduate School for Doctoral Studies Academy of Finland Emil Aaltosen Säätiö |
format |
Article in Journal/Newspaper |
author |
Kivilä, E. Henriikka Luoto, Tomi P. Rantala, Marttiina V. Nevalainen, Liisa |
author_facet |
Kivilä, E. Henriikka Luoto, Tomi P. Rantala, Marttiina V. Nevalainen, Liisa |
author_sort |
Kivilä, E. Henriikka |
title |
Late-Holocene variability in chironomid functional assemblages and carbon utilization in a tundra lake food web |
title_short |
Late-Holocene variability in chironomid functional assemblages and carbon utilization in a tundra lake food web |
title_full |
Late-Holocene variability in chironomid functional assemblages and carbon utilization in a tundra lake food web |
title_fullStr |
Late-Holocene variability in chironomid functional assemblages and carbon utilization in a tundra lake food web |
title_full_unstemmed |
Late-Holocene variability in chironomid functional assemblages and carbon utilization in a tundra lake food web |
title_sort |
late-holocene variability in chironomid functional assemblages and carbon utilization in a tundra lake food web |
publisher |
Springer Science and Business Media LLC |
publishDate |
2019 |
url |
http://dx.doi.org/10.1007/s10750-019-04151-7 http://link.springer.com/content/pdf/10.1007/s10750-019-04151-7.pdf http://link.springer.com/article/10.1007/s10750-019-04151-7/fulltext.html |
genre |
Northern Finland Tundra |
genre_facet |
Northern Finland Tundra |
op_source |
Hydrobiologia volume 847, issue 3, page 895-911 ISSN 0018-8158 1573-5117 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s10750-019-04151-7 |
container_title |
Hydrobiologia |
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847 |
container_issue |
3 |
container_start_page |
895 |
op_container_end_page |
911 |
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1766144476531654656 |