Late Pleistocene to Holocene vegetation and climate changes in northwestern Chukotka (Far East Russia) deduced from lakes Ilirney and Rauchuagytgyn pollen records
This paper presents two new pollen records and quantitative climate reconstructions from northern Chukotka documenting environmental changes over the last 27.9 ka. Open tundra‐ and steppe‐like habitats dominated between 27.9 and 18.7 cal. ka BP. Betula and Alnus shrubs might have grown in sheltered...
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Language: | English |
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2021
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Online Access: | https://doi.org/10.23689/fidgeo-4319 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8665 |
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ddc:561 arctic Chukotka Late Pleistocene Holocene lacustrine sediments pollen stratigraphy climate change |
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ddc:561 arctic Chukotka Late Pleistocene Holocene lacustrine sediments pollen stratigraphy climate change Andreev, Andrei A. Raschke, Elena Biskaborn, Boris K. Vyse, Stuart A. Courtin, Jeremy Böhmer, Thomas Stoof‐Leichsenring, Kathleen Kruse, Stefan Pestryakova, Lyudmila A. Herzschuh, Ulrike Andreev, Andrei A.; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Raschke, Elena; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Biskaborn, Boris K.; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Vyse, Stuart A.; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Courtin, Jeremy; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Böhmer, Thomas; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Stoof‐Leichsenring, Kathleen; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Kruse, Stefan; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Pestryakova, Lyudmila A.; 2Department of Geography and Biology North‐Eastern Federal University Belinsky St. 58 Yakutsk 677000 Russia Herzschuh, Ulrike; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Late Pleistocene to Holocene vegetation and climate changes in northwestern Chukotka (Far East Russia) deduced from lakes Ilirney and Rauchuagytgyn pollen records |
topic_facet |
ddc:561 arctic Chukotka Late Pleistocene Holocene lacustrine sediments pollen stratigraphy climate change |
description |
This paper presents two new pollen records and quantitative climate reconstructions from northern Chukotka documenting environmental changes over the last 27.9 ka. Open tundra‐ and steppe‐like habitats dominated between 27.9 and 18.7 cal. ka BP. Betula and Alnus shrubs might have grown in sheltered microhabitats but disappeared after 18.7 cal. ka BP. Although the climate was rather harsh, local herb‐dominated communities supported herbivores as is evident by the presence of coprophilous spores in the sediments. The increase in Salix and Cyperaceae ~16.1 cal. ka BP suggests climate amelioration. Shrub Betula appeared ~15.9 cal. ka BP, and became dominant after ~15.52 cal. ka BP, whilst typical steppe communities drastically reduced. Very high presence of Botryococcus in the Lateglacial sediments reflects widespread shallow habitats, probably due to lake level increase. Shrub Alnus became common after ~13 cal. ka BP reflecting further climate amelioration. Simultaneously, herb communities gradually decreased in the vegetation reaching a minimum ~11.8 cal. ka BP. A gradual decrease of algae remains suggests a reduction of shallow‐water habitats. Shrubby and graminoid tundra was dominant ~11.8–11.1 cal. ka BP, later Salix stands significantly decreased. The forest‐tundra ecotone established in the Early Holocene, shortly after 11.1 cal. ka BP. Low contents of green algae in the Early Holocene sediments likely reflect deeper aquatic conditions. The most favourable climate conditions were between ~10.6 and 7 cal. ka BP. Vegetation became similar to the modern after ~7 cal. ka BP but Pinus pumila came to the Ilirney area at about 1.2 cal. ka BP. It is important to emphasize that the study area provided refugia for Betula and Alnus during MIS 2. It is also notable that our records do not reflect evidence of Younger Dryas cooling, which is inconsistent with some regional environmental records but in good accordance with some others. European Research Council |
format |
Article in Journal/Newspaper |
author |
Andreev, Andrei A. Raschke, Elena Biskaborn, Boris K. Vyse, Stuart A. Courtin, Jeremy Böhmer, Thomas Stoof‐Leichsenring, Kathleen Kruse, Stefan Pestryakova, Lyudmila A. Herzschuh, Ulrike Andreev, Andrei A.; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Raschke, Elena; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Biskaborn, Boris K.; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Vyse, Stuart A.; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Courtin, Jeremy; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Böhmer, Thomas; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Stoof‐Leichsenring, Kathleen; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Kruse, Stefan; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Pestryakova, Lyudmila A.; 2Department of Geography and Biology North‐Eastern Federal University Belinsky St. 58 Yakutsk 677000 Russia Herzschuh, Ulrike; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany |
author_facet |
Andreev, Andrei A. Raschke, Elena Biskaborn, Boris K. Vyse, Stuart A. Courtin, Jeremy Böhmer, Thomas Stoof‐Leichsenring, Kathleen Kruse, Stefan Pestryakova, Lyudmila A. Herzschuh, Ulrike Andreev, Andrei A.; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Raschke, Elena; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Biskaborn, Boris K.; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Vyse, Stuart A.; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Courtin, Jeremy; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Böhmer, Thomas; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Stoof‐Leichsenring, Kathleen; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Kruse, Stefan; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Pestryakova, Lyudmila A.; 2Department of Geography and Biology North‐Eastern Federal University Belinsky St. 58 Yakutsk 677000 Russia Herzschuh, Ulrike; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany |
author_sort |
Andreev, Andrei A. |
title |
Late Pleistocene to Holocene vegetation and climate changes in northwestern Chukotka (Far East Russia) deduced from lakes Ilirney and Rauchuagytgyn pollen records |
title_short |
Late Pleistocene to Holocene vegetation and climate changes in northwestern Chukotka (Far East Russia) deduced from lakes Ilirney and Rauchuagytgyn pollen records |
title_full |
Late Pleistocene to Holocene vegetation and climate changes in northwestern Chukotka (Far East Russia) deduced from lakes Ilirney and Rauchuagytgyn pollen records |
title_fullStr |
Late Pleistocene to Holocene vegetation and climate changes in northwestern Chukotka (Far East Russia) deduced from lakes Ilirney and Rauchuagytgyn pollen records |
title_full_unstemmed |
Late Pleistocene to Holocene vegetation and climate changes in northwestern Chukotka (Far East Russia) deduced from lakes Ilirney and Rauchuagytgyn pollen records |
title_sort |
late pleistocene to holocene vegetation and climate changes in northwestern chukotka (far east russia) deduced from lakes ilirney and rauchuagytgyn pollen records |
publishDate |
2021 |
url |
https://doi.org/10.23689/fidgeo-4319 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8665 |
long_lat |
ENVELOPE(167.951,167.951,67.255,67.255) |
geographic |
Arctic Ilirney |
geographic_facet |
Arctic Ilirney |
genre |
Arctic Chukotka Climate change Tundra |
genre_facet |
Arctic Chukotka Climate change Tundra |
op_relation |
doi:10.23689/fidgeo-4319 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8665 |
op_rights |
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.23689/fidgeo-4319 |
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50 |
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ftsubggeo:oai:e-docs.geo-leo.de:11858/8665 2023-05-15T15:14:54+02:00 Late Pleistocene to Holocene vegetation and climate changes in northwestern Chukotka (Far East Russia) deduced from lakes Ilirney and Rauchuagytgyn pollen records Andreev, Andrei A. Raschke, Elena Biskaborn, Boris K. Vyse, Stuart A. Courtin, Jeremy Böhmer, Thomas Stoof‐Leichsenring, Kathleen Kruse, Stefan Pestryakova, Lyudmila A. Herzschuh, Ulrike Andreev, Andrei A.; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Raschke, Elena; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Biskaborn, Boris K.; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Vyse, Stuart A.; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Courtin, Jeremy; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Böhmer, Thomas; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Stoof‐Leichsenring, Kathleen; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Kruse, Stefan; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany Pestryakova, Lyudmila A.; 2Department of Geography and Biology North‐Eastern Federal University Belinsky St. 58 Yakutsk 677000 Russia Herzschuh, Ulrike; 1Alfred Wegener InstituteHelmholtz Centre for Polar and Marine Research, Telegrafenberg A43 Potsdam 14473 Germany 2021-03-31 https://doi.org/10.23689/fidgeo-4319 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8665 eng eng doi:10.23689/fidgeo-4319 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8665 This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY ddc:561 arctic Chukotka Late Pleistocene Holocene lacustrine sediments pollen stratigraphy climate change doc-type:article 2021 ftsubggeo https://doi.org/10.23689/fidgeo-4319 2022-11-09T06:51:38Z This paper presents two new pollen records and quantitative climate reconstructions from northern Chukotka documenting environmental changes over the last 27.9 ka. Open tundra‐ and steppe‐like habitats dominated between 27.9 and 18.7 cal. ka BP. Betula and Alnus shrubs might have grown in sheltered microhabitats but disappeared after 18.7 cal. ka BP. Although the climate was rather harsh, local herb‐dominated communities supported herbivores as is evident by the presence of coprophilous spores in the sediments. The increase in Salix and Cyperaceae ~16.1 cal. ka BP suggests climate amelioration. Shrub Betula appeared ~15.9 cal. ka BP, and became dominant after ~15.52 cal. ka BP, whilst typical steppe communities drastically reduced. Very high presence of Botryococcus in the Lateglacial sediments reflects widespread shallow habitats, probably due to lake level increase. Shrub Alnus became common after ~13 cal. ka BP reflecting further climate amelioration. Simultaneously, herb communities gradually decreased in the vegetation reaching a minimum ~11.8 cal. ka BP. A gradual decrease of algae remains suggests a reduction of shallow‐water habitats. Shrubby and graminoid tundra was dominant ~11.8–11.1 cal. ka BP, later Salix stands significantly decreased. The forest‐tundra ecotone established in the Early Holocene, shortly after 11.1 cal. ka BP. Low contents of green algae in the Early Holocene sediments likely reflect deeper aquatic conditions. The most favourable climate conditions were between ~10.6 and 7 cal. ka BP. Vegetation became similar to the modern after ~7 cal. ka BP but Pinus pumila came to the Ilirney area at about 1.2 cal. ka BP. It is important to emphasize that the study area provided refugia for Betula and Alnus during MIS 2. It is also notable that our records do not reflect evidence of Younger Dryas cooling, which is inconsistent with some regional environmental records but in good accordance with some others. European Research Council Article in Journal/Newspaper Arctic Chukotka Climate change Tundra GEO-LEOe-docs (FID GEO) Arctic Ilirney ENVELOPE(167.951,167.951,67.255,67.255) Boreas 50 3 652 670 |