Palaeobotanical evidence for warm summers in the East Siberian Arctic during the last cold stage
Plant macrofossils from the “Mamontovy Khayata” permafrost sequence (71°60′N, 129°25′E) on the Bykovsky Peninsula reflect climate and plant biodiversity in west Beringia during the last cold stage. 70 AMS and 20 conventional 14 C dates suggest sediment accumulation between about 60,000 and 7500 14 C...
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Cambridge University Press (CUP)
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crcambridgeupr:10.1016/j.yqres.2005.01.003 2024-10-13T14:04:51+00:00 Palaeobotanical evidence for warm summers in the East Siberian Arctic during the last cold stage Kienast, Frank Schirrmeister, Lutz Siegert, Christine Tarasov, Pavel 2005 http://dx.doi.org/10.1016/j.yqres.2005.01.003 http://api.elsevier.com/content/article/PII:S0033589405000049?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589405000049?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400013417 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 63, issue 3, page 283-300 ISSN 0033-5894 1096-0287 journal-article 2005 crcambridgeupr https://doi.org/10.1016/j.yqres.2005.01.003 2024-09-18T04:03:00Z Plant macrofossils from the “Mamontovy Khayata” permafrost sequence (71°60′N, 129°25′E) on the Bykovsky Peninsula reflect climate and plant biodiversity in west Beringia during the last cold stage. 70 AMS and 20 conventional 14 C dates suggest sediment accumulation between about 60,000 and 7500 14 C yr B.P. The plant remains prove that during the last cold-stage arctic species ( Minuartia arctica , Draba spp., Kobresia myosuroides ) coexisted with aquatic ( Potamogeton vaginatus , Callitriche hermaphroditica ), littoral ( Ranunculus reptans , Rumex maritimus ), meadow ( Hordeum brevisubulatum , Puccinellia tenuiflora ) and steppe taxa ( Alyssum obovatum , Silene repens , Koeleria cristata , Linum perenne ). The reconstructed vegetation composition is similar to modern vegetation mosaics in central and northeast Yakutian relict steppe areas. Thus, productive meadow and steppe communities played an important role in the Siberian Arctic vegetation during the late Pleistocene and could have served as food resource for large populations of herbivores. The floristic composition reflects an extremely continental, arid climate with winters colder and summers distinctly warmer than at present. Holocene macrofossil assemblages indicate a successive paludification possibly connected with marine transgression, increased oceanic influence and atmospheric humidity. Although some steppe taxa were still present in the early Holocene, they disappeared completely before ∼2900 14 C yr B.P. Article in Journal/Newspaper Arctic permafrost Beringia Cambridge University Press Arctic Quaternary Research 63 3 283 300 |
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Cambridge University Press |
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crcambridgeupr |
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English |
description |
Plant macrofossils from the “Mamontovy Khayata” permafrost sequence (71°60′N, 129°25′E) on the Bykovsky Peninsula reflect climate and plant biodiversity in west Beringia during the last cold stage. 70 AMS and 20 conventional 14 C dates suggest sediment accumulation between about 60,000 and 7500 14 C yr B.P. The plant remains prove that during the last cold-stage arctic species ( Minuartia arctica , Draba spp., Kobresia myosuroides ) coexisted with aquatic ( Potamogeton vaginatus , Callitriche hermaphroditica ), littoral ( Ranunculus reptans , Rumex maritimus ), meadow ( Hordeum brevisubulatum , Puccinellia tenuiflora ) and steppe taxa ( Alyssum obovatum , Silene repens , Koeleria cristata , Linum perenne ). The reconstructed vegetation composition is similar to modern vegetation mosaics in central and northeast Yakutian relict steppe areas. Thus, productive meadow and steppe communities played an important role in the Siberian Arctic vegetation during the late Pleistocene and could have served as food resource for large populations of herbivores. The floristic composition reflects an extremely continental, arid climate with winters colder and summers distinctly warmer than at present. Holocene macrofossil assemblages indicate a successive paludification possibly connected with marine transgression, increased oceanic influence and atmospheric humidity. Although some steppe taxa were still present in the early Holocene, they disappeared completely before ∼2900 14 C yr B.P. |
format |
Article in Journal/Newspaper |
author |
Kienast, Frank Schirrmeister, Lutz Siegert, Christine Tarasov, Pavel |
spellingShingle |
Kienast, Frank Schirrmeister, Lutz Siegert, Christine Tarasov, Pavel Palaeobotanical evidence for warm summers in the East Siberian Arctic during the last cold stage |
author_facet |
Kienast, Frank Schirrmeister, Lutz Siegert, Christine Tarasov, Pavel |
author_sort |
Kienast, Frank |
title |
Palaeobotanical evidence for warm summers in the East Siberian Arctic during the last cold stage |
title_short |
Palaeobotanical evidence for warm summers in the East Siberian Arctic during the last cold stage |
title_full |
Palaeobotanical evidence for warm summers in the East Siberian Arctic during the last cold stage |
title_fullStr |
Palaeobotanical evidence for warm summers in the East Siberian Arctic during the last cold stage |
title_full_unstemmed |
Palaeobotanical evidence for warm summers in the East Siberian Arctic during the last cold stage |
title_sort |
palaeobotanical evidence for warm summers in the east siberian arctic during the last cold stage |
publisher |
Cambridge University Press (CUP) |
publishDate |
2005 |
url |
http://dx.doi.org/10.1016/j.yqres.2005.01.003 http://api.elsevier.com/content/article/PII:S0033589405000049?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589405000049?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400013417 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost Beringia |
genre_facet |
Arctic permafrost Beringia |
op_source |
Quaternary Research volume 63, issue 3, page 283-300 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/j.yqres.2005.01.003 |
container_title |
Quaternary Research |
container_volume |
63 |
container_issue |
3 |
container_start_page |
283 |
op_container_end_page |
300 |
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1812810555826634752 |