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 14C dates suggest sediment accumulation between about 60,000 and 7500 14C y...
Published in: | Quaternary Research |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2005
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/27425/ https://oceanrep.geomar.de/id/eprint/27425/1/2005_Kienast-etal-aleobotanical_QuatRes-63.pdf https://doi.org/10.1016/j.yqres.2005.01.003 |
id |
ftoceanrep:oai:oceanrep.geomar.de:27425 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:27425 2023-05-15T14:26:25+02:00 Palaeobotanical evidence for warm summers in the East Siberian Arctic during the last cold stage Kienast, Frank Schirrmeister, Lutz Siegert, Christine Tarasov, Pavel 2005 text https://oceanrep.geomar.de/id/eprint/27425/ https://oceanrep.geomar.de/id/eprint/27425/1/2005_Kienast-etal-aleobotanical_QuatRes-63.pdf https://doi.org/10.1016/j.yqres.2005.01.003 en eng Elsevier https://oceanrep.geomar.de/id/eprint/27425/1/2005_Kienast-etal-aleobotanical_QuatRes-63.pdf Kienast, F., Schirrmeister, L., Siegert, C. and Tarasov, P. (2005) Palaeobotanical evidence for warm summers in the East Siberian Arctic during the last cold stage. Quaternary Research, 63 (3). pp. 283-300. DOI 10.1016/j.yqres.2005.01.003 <https://doi.org/10.1016/j.yqres.2005.01.003>. doi:10.1016/j.yqres.2005.01.003 Article PeerReviewed 2005 ftoceanrep https://doi.org/10.1016/j.yqres.2005.01.003 2023-04-07T15:17:31Z 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 14C dates suggest sediment accumulation between about 60,000 and 7500 14C 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 14C yr B.P. Article in Journal/Newspaper Arctic Arctic permafrost Beringia OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Quaternary Research 63 3 283 300 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
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 14C dates suggest sediment accumulation between about 60,000 and 7500 14C 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 14C 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 |
Elsevier |
publishDate |
2005 |
url |
https://oceanrep.geomar.de/id/eprint/27425/ https://oceanrep.geomar.de/id/eprint/27425/1/2005_Kienast-etal-aleobotanical_QuatRes-63.pdf https://doi.org/10.1016/j.yqres.2005.01.003 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic permafrost Beringia |
genre_facet |
Arctic Arctic permafrost Beringia |
op_relation |
https://oceanrep.geomar.de/id/eprint/27425/1/2005_Kienast-etal-aleobotanical_QuatRes-63.pdf Kienast, F., Schirrmeister, L., Siegert, C. and Tarasov, P. (2005) Palaeobotanical evidence for warm summers in the East Siberian Arctic during the last cold stage. Quaternary Research, 63 (3). pp. 283-300. DOI 10.1016/j.yqres.2005.01.003 <https://doi.org/10.1016/j.yqres.2005.01.003>. doi:10.1016/j.yqres.2005.01.003 |
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 |
_version_ |
1766298987143364608 |