Cladoceran (Crustacea) Niches, Sex, and Sun Bathing—A Long-Term Record of Tundra Lake (Lapland) Functioning and Paleo-Optics
Under fundamental ecosystem changes in high latitude lakes, a functional paleolimnological approach may increase holistic understanding of lake responses and resilience to climate warming. A ~2000-year sediment record from Lake Loažžejávri in the tundra of northern Finnish Lapland was examined for f...
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ftmdpi:oai:mdpi.com:/2073-4441/11/10/2008/ 2023-08-20T04:10:13+02:00 Cladoceran (Crustacea) Niches, Sex, and Sun Bathing—A Long-Term Record of Tundra Lake (Lapland) Functioning and Paleo-Optics Liisa Nevalainen E. Henriikka Kivilä Marttiina V. Rantala Tomi P. Luoto agris 2019-09-27 application/pdf https://doi.org/10.3390/w11102008 EN eng Multidisciplinary Digital Publishing Institute Biodiversity and Functionality of Aquatic Ecosystems https://dx.doi.org/10.3390/w11102008 https://creativecommons.org/licenses/by/4.0/ Water; Volume 11; Issue 10; Pages: 2008 autochthony cladocera functional ecology organic carbon paleolimnology tundra lakes UV radiation Text 2019 ftmdpi https://doi.org/10.3390/w11102008 2023-07-31T22:38:53Z Under fundamental ecosystem changes in high latitude lakes, a functional paleolimnological approach may increase holistic understanding of lake responses and resilience to climate warming. A ~2000-year sediment record from Lake Loažžejávri in the tundra of northern Finnish Lapland was examined for fossil Cladocera assemblages to examine long-term environmental controls on aquatic communities. In addition, cladoceran functional attributes, including functional diversity (FD), UV absorbance (ABSUV) of Alona carapaces, and sexual reproduction (ephippia) in Bosmina and Chydoridae were analyzed. Cladoceran communities responded to a major change in benthic habitat quality, reflected as elevated (increasingly benthic) sediment organic matter δ13C signal since the 17th century. FD fluctuations showed association with climate oscillation, FD being generally higher during warm climate periods. These ecological changes were likely attributable to diversification of littoral-benthic consumer habitat space. ABSUV, irrespective of increases during the Little Ice Age (LIA) due to higher UV transparency of lake water, was lower under increasing autochthony (benthic production) suggesting establishment of physical UV refugia by the benthic vegetative substrata. Bosmina ephippia exhibited a decreasing trend associated with increasing benthic production, indicating favorable environmental regime, and, together with chydorid ephippia, transient increases during the climate cooling of the LIA driven by shorter open-water season. Text Tundra Lapland MDPI Open Access Publishing Water 11 10 2008 |
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Open Polar |
collection |
MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
autochthony cladocera functional ecology organic carbon paleolimnology tundra lakes UV radiation |
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autochthony cladocera functional ecology organic carbon paleolimnology tundra lakes UV radiation Liisa Nevalainen E. Henriikka Kivilä Marttiina V. Rantala Tomi P. Luoto Cladoceran (Crustacea) Niches, Sex, and Sun Bathing—A Long-Term Record of Tundra Lake (Lapland) Functioning and Paleo-Optics |
topic_facet |
autochthony cladocera functional ecology organic carbon paleolimnology tundra lakes UV radiation |
description |
Under fundamental ecosystem changes in high latitude lakes, a functional paleolimnological approach may increase holistic understanding of lake responses and resilience to climate warming. A ~2000-year sediment record from Lake Loažžejávri in the tundra of northern Finnish Lapland was examined for fossil Cladocera assemblages to examine long-term environmental controls on aquatic communities. In addition, cladoceran functional attributes, including functional diversity (FD), UV absorbance (ABSUV) of Alona carapaces, and sexual reproduction (ephippia) in Bosmina and Chydoridae were analyzed. Cladoceran communities responded to a major change in benthic habitat quality, reflected as elevated (increasingly benthic) sediment organic matter δ13C signal since the 17th century. FD fluctuations showed association with climate oscillation, FD being generally higher during warm climate periods. These ecological changes were likely attributable to diversification of littoral-benthic consumer habitat space. ABSUV, irrespective of increases during the Little Ice Age (LIA) due to higher UV transparency of lake water, was lower under increasing autochthony (benthic production) suggesting establishment of physical UV refugia by the benthic vegetative substrata. Bosmina ephippia exhibited a decreasing trend associated with increasing benthic production, indicating favorable environmental regime, and, together with chydorid ephippia, transient increases during the climate cooling of the LIA driven by shorter open-water season. |
format |
Text |
author |
Liisa Nevalainen E. Henriikka Kivilä Marttiina V. Rantala Tomi P. Luoto |
author_facet |
Liisa Nevalainen E. Henriikka Kivilä Marttiina V. Rantala Tomi P. Luoto |
author_sort |
Liisa Nevalainen |
title |
Cladoceran (Crustacea) Niches, Sex, and Sun Bathing—A Long-Term Record of Tundra Lake (Lapland) Functioning and Paleo-Optics |
title_short |
Cladoceran (Crustacea) Niches, Sex, and Sun Bathing—A Long-Term Record of Tundra Lake (Lapland) Functioning and Paleo-Optics |
title_full |
Cladoceran (Crustacea) Niches, Sex, and Sun Bathing—A Long-Term Record of Tundra Lake (Lapland) Functioning and Paleo-Optics |
title_fullStr |
Cladoceran (Crustacea) Niches, Sex, and Sun Bathing—A Long-Term Record of Tundra Lake (Lapland) Functioning and Paleo-Optics |
title_full_unstemmed |
Cladoceran (Crustacea) Niches, Sex, and Sun Bathing—A Long-Term Record of Tundra Lake (Lapland) Functioning and Paleo-Optics |
title_sort |
cladoceran (crustacea) niches, sex, and sun bathing—a long-term record of tundra lake (lapland) functioning and paleo-optics |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2019 |
url |
https://doi.org/10.3390/w11102008 |
op_coverage |
agris |
genre |
Tundra Lapland |
genre_facet |
Tundra Lapland |
op_source |
Water; Volume 11; Issue 10; Pages: 2008 |
op_relation |
Biodiversity and Functionality of Aquatic Ecosystems https://dx.doi.org/10.3390/w11102008 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/w11102008 |
container_title |
Water |
container_volume |
11 |
container_issue |
10 |
container_start_page |
2008 |
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1774724253207232512 |