Vegetation responses to rapid climatic changes during the last deglaciation 13,500-8,000 years ago on southwest Andoya, arctic Norway
The late-glacial vegetation development in northern Norway in response to climate changes during the Allerod, Younger Dryas (YD), and the transition to the Holocene is poorly known. Here we present a high-resolution record of floral and vegetation changes at lake Lusvatnet, south-west Andoya, betwee...
Published in: | Vegetation History and Archaeobotany |
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Language: | English |
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2012
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Online Access: | https://pure.qub.ac.uk/en/publications/a7aaca04-80a9-4d3c-a523-a7ad0e90bb09 https://doi.org/10.1007/s00334-011-0320-4 |
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ftqueensubelpubl:oai:pure.qub.ac.uk/portal:publications/a7aaca04-80a9-4d3c-a523-a7ad0e90bb09 2024-05-19T07:33:16+00:00 Vegetation responses to rapid climatic changes during the last deglaciation 13,500-8,000 years ago on southwest Andoya, arctic Norway Aarnes, Ingelinn Bjune, Anne E. Birks, Hilary H. Balascio, Nicholas L. Bakke, Jostein Blaauw, Maarten 2012-01 https://pure.qub.ac.uk/en/publications/a7aaca04-80a9-4d3c-a523-a7ad0e90bb09 https://doi.org/10.1007/s00334-011-0320-4 eng eng https://pure.qub.ac.uk/en/publications/a7aaca04-80a9-4d3c-a523-a7ad0e90bb09 info:eu-repo/semantics/closedAccess Aarnes , I , Bjune , A E , Birks , H H , Balascio , N L , Bakke , J & Blaauw , M 2012 , ' Vegetation responses to rapid climatic changes during the last deglaciation 13,500-8,000 years ago on southwest Andoya, arctic Norway ' , Vegetation History and Archaeobotany , vol. 21 , no. 1 , pp. 17-35 . https://doi.org/10.1007/s00334-011-0320-4 /dk/atira/pure/subjectarea/asjc/1100/1110 name=Plant Science /dk/atira/pure/subjectarea/asjc/1900/1911 name=Palaeontology /dk/atira/pure/subjectarea/asjc/1200/1204 name=Archaeology /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action article 2012 ftqueensubelpubl https://doi.org/10.1007/s00334-011-0320-4 2024-05-02T00:09:32Z The late-glacial vegetation development in northern Norway in response to climate changes during the Allerod, Younger Dryas (YD), and the transition to the Holocene is poorly known. Here we present a high-resolution record of floral and vegetation changes at lake Lusvatnet, south-west Andoya, between 13500 and 8000 cal b.p. Plant macrofossil and pollen analyses were done on the same sediment core and the proxy records follow each other very closely. The core has also been analyzed using an ITRAX XRF scanner in order to check the sediment sequence for disturbances or hiatuses. The core has a good radiocarbon-based chronology. The Saksunarvatn tephra fits very well chronostratigraphically. During both the Allerod and the Younger Dryas time-periods arctic vegetation prevailed, dominated by Salix polaris associated with many typically arctic herbs such as Saxifraga cespitosa, Saxifraga rivularis and Oxyria digyna. Both periods were cold and dry. Between 12450 and 12250 cal b.p. during the Younger Dryas chronozone, the assemblage changed, particularly in the increased abundance of Papaver sect. Scapiflora and other high-Arctic herbs, suggesting the development of polar desert vegetation mainly as a response to increased aridity. After 11520 cal b.p. a gradually warmer and more oceanic climate initiated a succession to dwarf-shrub vegetation and the establishment of Betula woodland after 1,000 years at c. 10520 cal b.p. The overall late-glacial aridity contrasts with oceanic conditions in southern Norway and is probably related to sea-ice extent. Article in Journal/Newspaper Arctic Arctic Northern Norway Oxyria digyna polar desert Salix polaris Saxifraga cespitosa Saxifraga rivularis Sea ice Queen's University Belfast Research Portal Vegetation History and Archaeobotany 21 1 17 35 |
institution |
Open Polar |
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Queen's University Belfast Research Portal |
op_collection_id |
ftqueensubelpubl |
language |
English |
topic |
/dk/atira/pure/subjectarea/asjc/1100/1110 name=Plant Science /dk/atira/pure/subjectarea/asjc/1900/1911 name=Palaeontology /dk/atira/pure/subjectarea/asjc/1200/1204 name=Archaeology /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
spellingShingle |
/dk/atira/pure/subjectarea/asjc/1100/1110 name=Plant Science /dk/atira/pure/subjectarea/asjc/1900/1911 name=Palaeontology /dk/atira/pure/subjectarea/asjc/1200/1204 name=Archaeology /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action Aarnes, Ingelinn Bjune, Anne E. Birks, Hilary H. Balascio, Nicholas L. Bakke, Jostein Blaauw, Maarten Vegetation responses to rapid climatic changes during the last deglaciation 13,500-8,000 years ago on southwest Andoya, arctic Norway |
topic_facet |
/dk/atira/pure/subjectarea/asjc/1100/1110 name=Plant Science /dk/atira/pure/subjectarea/asjc/1900/1911 name=Palaeontology /dk/atira/pure/subjectarea/asjc/1200/1204 name=Archaeology /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
description |
The late-glacial vegetation development in northern Norway in response to climate changes during the Allerod, Younger Dryas (YD), and the transition to the Holocene is poorly known. Here we present a high-resolution record of floral and vegetation changes at lake Lusvatnet, south-west Andoya, between 13500 and 8000 cal b.p. Plant macrofossil and pollen analyses were done on the same sediment core and the proxy records follow each other very closely. The core has also been analyzed using an ITRAX XRF scanner in order to check the sediment sequence for disturbances or hiatuses. The core has a good radiocarbon-based chronology. The Saksunarvatn tephra fits very well chronostratigraphically. During both the Allerod and the Younger Dryas time-periods arctic vegetation prevailed, dominated by Salix polaris associated with many typically arctic herbs such as Saxifraga cespitosa, Saxifraga rivularis and Oxyria digyna. Both periods were cold and dry. Between 12450 and 12250 cal b.p. during the Younger Dryas chronozone, the assemblage changed, particularly in the increased abundance of Papaver sect. Scapiflora and other high-Arctic herbs, suggesting the development of polar desert vegetation mainly as a response to increased aridity. After 11520 cal b.p. a gradually warmer and more oceanic climate initiated a succession to dwarf-shrub vegetation and the establishment of Betula woodland after 1,000 years at c. 10520 cal b.p. The overall late-glacial aridity contrasts with oceanic conditions in southern Norway and is probably related to sea-ice extent. |
format |
Article in Journal/Newspaper |
author |
Aarnes, Ingelinn Bjune, Anne E. Birks, Hilary H. Balascio, Nicholas L. Bakke, Jostein Blaauw, Maarten |
author_facet |
Aarnes, Ingelinn Bjune, Anne E. Birks, Hilary H. Balascio, Nicholas L. Bakke, Jostein Blaauw, Maarten |
author_sort |
Aarnes, Ingelinn |
title |
Vegetation responses to rapid climatic changes during the last deglaciation 13,500-8,000 years ago on southwest Andoya, arctic Norway |
title_short |
Vegetation responses to rapid climatic changes during the last deglaciation 13,500-8,000 years ago on southwest Andoya, arctic Norway |
title_full |
Vegetation responses to rapid climatic changes during the last deglaciation 13,500-8,000 years ago on southwest Andoya, arctic Norway |
title_fullStr |
Vegetation responses to rapid climatic changes during the last deglaciation 13,500-8,000 years ago on southwest Andoya, arctic Norway |
title_full_unstemmed |
Vegetation responses to rapid climatic changes during the last deglaciation 13,500-8,000 years ago on southwest Andoya, arctic Norway |
title_sort |
vegetation responses to rapid climatic changes during the last deglaciation 13,500-8,000 years ago on southwest andoya, arctic norway |
publishDate |
2012 |
url |
https://pure.qub.ac.uk/en/publications/a7aaca04-80a9-4d3c-a523-a7ad0e90bb09 https://doi.org/10.1007/s00334-011-0320-4 |
genre |
Arctic Arctic Northern Norway Oxyria digyna polar desert Salix polaris Saxifraga cespitosa Saxifraga rivularis Sea ice |
genre_facet |
Arctic Arctic Northern Norway Oxyria digyna polar desert Salix polaris Saxifraga cespitosa Saxifraga rivularis Sea ice |
op_source |
Aarnes , I , Bjune , A E , Birks , H H , Balascio , N L , Bakke , J & Blaauw , M 2012 , ' Vegetation responses to rapid climatic changes during the last deglaciation 13,500-8,000 years ago on southwest Andoya, arctic Norway ' , Vegetation History and Archaeobotany , vol. 21 , no. 1 , pp. 17-35 . https://doi.org/10.1007/s00334-011-0320-4 |
op_relation |
https://pure.qub.ac.uk/en/publications/a7aaca04-80a9-4d3c-a523-a7ad0e90bb09 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/s00334-011-0320-4 |
container_title |
Vegetation History and Archaeobotany |
container_volume |
21 |
container_issue |
1 |
container_start_page |
17 |
op_container_end_page |
35 |
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1799471348732395520 |