Subfossil Cladocera from surface sediment in thermokarst lakes in northeastern Siberia, Russia, in relation to limnological and climatic variables
Subfossil Cladocera were sampled and examined from the surface sediments of 35 thermokarst lakes along a temperature gradient crossing the tree line in the Anabar-river basin in northwestern Yakutia, northeastern Siberia. The lakes were distributed through three environmental zones: typical tundra,...
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ftubpotsdam:oai:kobv.de-opus4-uni-potsdam:37693 2023-12-17T10:26:26+01:00 Subfossil Cladocera from surface sediment in thermokarst lakes in northeastern Siberia, Russia, in relation to limnological and climatic variables Frolova, Larisa Nazarova, Larisa B. Pestryakova, Luidmila Agafyevna Herzschuh, Ulrike 2014 https://publishup.uni-potsdam.de/frontdoor/index/index/docId/37693 https://doi.org/10.1007/s10933-014-9781-7 eng eng https://publishup.uni-potsdam.de/frontdoor/index/index/docId/37693 https://doi.org/10.1007/s10933-014-9781-7 info:eu-repo/semantics/closedAccess Institut für Geowissenschaften article doc-type:article 2014 ftubpotsdam https://doi.org/10.1007/s10933-014-9781-7 2023-11-19T23:35:07Z Subfossil Cladocera were sampled and examined from the surface sediments of 35 thermokarst lakes along a temperature gradient crossing the tree line in the Anabar-river basin in northwestern Yakutia, northeastern Siberia. The lakes were distributed through three environmental zones: typical tundra, southern tundra and forest tundra. All lakes were situated within the continuous permafrost zone. Our investigation showed that the cladoceran communities in the lakes of the Anabar region are diverse and abundant, as reflected by taxonomic richness, and high diversity and evenness indices (H = 1.89 +/- A 0.51; I = 0.8 +/- A 0.18). CONISS cluster analysis indicated that the cladoceran communities in the three ecological zones (typical tundra, southern tundra and forest-tundra) differed in their taxonomic composition and structure. Differences in the cladoceran assemblages were related to limnological features and geographical position, vegetation type, climate and water chemistry. The constrained redundancy analysis indicated that T-July, water depth and both sulphate (SO4 (2-)) and silica (Si4+) concentrations significantly (p a parts per thousand currency sign 0.05) explained variance in the cladoceran assemblage. T-July featured the highest percentage (17.4 %) of explained variance in the distribution of subfossil Cladocera. One of the most significant changes in the structure of the cladoceran communities in the investigated transect was the replacement of closely related species along the latitudinal and vegetation gradient. The results demonstrate the potential for a regional cladoceran-based temperature model for the Arctic regions of Russia, and for and Yakutia in particular. Article in Journal/Newspaper Arctic permafrost Thermokarst Tundra Yakutia Siberia University of Potsdam: publish.UP Anabar ENVELOPE(113.624,113.624,73.286,73.286) Arctic Journal of Paleolimnology 52 1-2 107 119 |
institution |
Open Polar |
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University of Potsdam: publish.UP |
op_collection_id |
ftubpotsdam |
language |
English |
topic |
Institut für Geowissenschaften |
spellingShingle |
Institut für Geowissenschaften Frolova, Larisa Nazarova, Larisa B. Pestryakova, Luidmila Agafyevna Herzschuh, Ulrike Subfossil Cladocera from surface sediment in thermokarst lakes in northeastern Siberia, Russia, in relation to limnological and climatic variables |
topic_facet |
Institut für Geowissenschaften |
description |
Subfossil Cladocera were sampled and examined from the surface sediments of 35 thermokarst lakes along a temperature gradient crossing the tree line in the Anabar-river basin in northwestern Yakutia, northeastern Siberia. The lakes were distributed through three environmental zones: typical tundra, southern tundra and forest tundra. All lakes were situated within the continuous permafrost zone. Our investigation showed that the cladoceran communities in the lakes of the Anabar region are diverse and abundant, as reflected by taxonomic richness, and high diversity and evenness indices (H = 1.89 +/- A 0.51; I = 0.8 +/- A 0.18). CONISS cluster analysis indicated that the cladoceran communities in the three ecological zones (typical tundra, southern tundra and forest-tundra) differed in their taxonomic composition and structure. Differences in the cladoceran assemblages were related to limnological features and geographical position, vegetation type, climate and water chemistry. The constrained redundancy analysis indicated that T-July, water depth and both sulphate (SO4 (2-)) and silica (Si4+) concentrations significantly (p a parts per thousand currency sign 0.05) explained variance in the cladoceran assemblage. T-July featured the highest percentage (17.4 %) of explained variance in the distribution of subfossil Cladocera. One of the most significant changes in the structure of the cladoceran communities in the investigated transect was the replacement of closely related species along the latitudinal and vegetation gradient. The results demonstrate the potential for a regional cladoceran-based temperature model for the Arctic regions of Russia, and for and Yakutia in particular. |
format |
Article in Journal/Newspaper |
author |
Frolova, Larisa Nazarova, Larisa B. Pestryakova, Luidmila Agafyevna Herzschuh, Ulrike |
author_facet |
Frolova, Larisa Nazarova, Larisa B. Pestryakova, Luidmila Agafyevna Herzschuh, Ulrike |
author_sort |
Frolova, Larisa |
title |
Subfossil Cladocera from surface sediment in thermokarst lakes in northeastern Siberia, Russia, in relation to limnological and climatic variables |
title_short |
Subfossil Cladocera from surface sediment in thermokarst lakes in northeastern Siberia, Russia, in relation to limnological and climatic variables |
title_full |
Subfossil Cladocera from surface sediment in thermokarst lakes in northeastern Siberia, Russia, in relation to limnological and climatic variables |
title_fullStr |
Subfossil Cladocera from surface sediment in thermokarst lakes in northeastern Siberia, Russia, in relation to limnological and climatic variables |
title_full_unstemmed |
Subfossil Cladocera from surface sediment in thermokarst lakes in northeastern Siberia, Russia, in relation to limnological and climatic variables |
title_sort |
subfossil cladocera from surface sediment in thermokarst lakes in northeastern siberia, russia, in relation to limnological and climatic variables |
publishDate |
2014 |
url |
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/37693 https://doi.org/10.1007/s10933-014-9781-7 |
long_lat |
ENVELOPE(113.624,113.624,73.286,73.286) |
geographic |
Anabar Arctic |
geographic_facet |
Anabar Arctic |
genre |
Arctic permafrost Thermokarst Tundra Yakutia Siberia |
genre_facet |
Arctic permafrost Thermokarst Tundra Yakutia Siberia |
op_relation |
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/37693 https://doi.org/10.1007/s10933-014-9781-7 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/s10933-014-9781-7 |
container_title |
Journal of Paleolimnology |
container_volume |
52 |
container_issue |
1-2 |
container_start_page |
107 |
op_container_end_page |
119 |
_version_ |
1785578159906750464 |