Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot”
Andøya on the NW coast of Norway is a key site for understanding the Last Glacial Maximum (LGM) in northern Europe. Controversy has arisen concerning the local conditions, especially about the timing and extent of local glacial cover, maximum July temperatures and whether pine and/or spruce could ha...
Published in: | Quaternary Science Reviews |
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Main Authors: | , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Elsevier
2020
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Online Access: | https://hdl.handle.net/10037/20256 https://doi.org/10.1016/j.quascirev.2020.106364 |
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ftunivtroemsoe:oai:munin.uit.no:10037/20256 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Alsos, Inger Greve Sjøgren, Per Johan E Brown, Antony Gielly, Ludovic Merkel, Marie Føreid Paus, Aage Lammers, Youri Edwards, Mary E. Alm, Torbjørn Leng, Melanie Goslar, Tomasz Langdon, Cathrine Bakke, Jostein Van Der Bilt, Willem Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot” |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
description |
Andøya on the NW coast of Norway is a key site for understanding the Last Glacial Maximum (LGM) in northern Europe. Controversy has arisen concerning the local conditions, especially about the timing and extent of local glacial cover, maximum July temperatures and whether pine and/or spruce could have grown there. We reviewed all existing data and add newly analysed ancient sedimentary DNA ( seda DNA), pollen, macrofossils, geochemistry and stable isotopes from three lake sediment cores from Øvre Æråsvatnet. A total of 23 new dates and age-depth modelling suggests the lake has been ice-free since GI2 (<23.4 cal ka BP) and possibly GS3 (<26.7 cal ka BP). Pinus and Picea seda DNA was found in all three cores but at such low frequencies that it could not be distinguished from background contamination. LGM samples have an exceptionally high organic matter content, with isotopic values indicating that carbon and nitrogen derive from a marine source. Along with finds of bones of the little auk ( Alle alle ), this indicates that the lake received guano from an adjacent bird colony. Seda DNA, pollen and macrofossil assemblages were dominated by Poaceae, Brassicaceae and Papaver , but scattered occurrence of species currently restricted to the Low Arctic Tundra Zone (July temperature of 8–9 °C) such as Apiaceae ( seda DNA, 8–9 °C), and Alchemilla alpina (macrofossil, 8–9 °C) were also recorded. The review of >14.7 cal ka BP data recorded 94 vascular plant taxa, of which 38% have a northern limit in Shrub Tundra or more southern vegetation zones. This unusual assemblage likely stems from a combination of proximity to ice-free water in summer, geographical isolation linked with stochastic long-distance dispersal events, and the presence of bird-fertilized habitats. The environmental reconstruction based on all records from the area does not preclude local growth of tree species, as the local climate combined with high nutrient input may have led to periodically suitable environmental ‘hotspot’ conditions. |
format |
Article in Journal/Newspaper |
author |
Alsos, Inger Greve Sjøgren, Per Johan E Brown, Antony Gielly, Ludovic Merkel, Marie Føreid Paus, Aage Lammers, Youri Edwards, Mary E. Alm, Torbjørn Leng, Melanie Goslar, Tomasz Langdon, Cathrine Bakke, Jostein Van Der Bilt, Willem |
author_facet |
Alsos, Inger Greve Sjøgren, Per Johan E Brown, Antony Gielly, Ludovic Merkel, Marie Føreid Paus, Aage Lammers, Youri Edwards, Mary E. Alm, Torbjørn Leng, Melanie Goslar, Tomasz Langdon, Cathrine Bakke, Jostein Van Der Bilt, Willem |
author_sort |
Alsos, Inger Greve |
title |
Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot” |
title_short |
Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot” |
title_full |
Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot” |
title_fullStr |
Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot” |
title_full_unstemmed |
Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot” |
title_sort |
last glacial maximum environmental conditions at andøya, northern norway; evidence for a northern ice-edge ecological “hotspot” |
publisher |
Elsevier |
publishDate |
2020 |
url |
https://hdl.handle.net/10037/20256 https://doi.org/10.1016/j.quascirev.2020.106364 |
long_lat |
ENVELOPE(13.982,13.982,68.185,68.185) ENVELOPE(141.604,141.604,-66.775,-66.775) ENVELOPE(14.991,14.991,67.750,67.750) ENVELOPE(16.035,16.035,69.256,69.256) |
geographic |
Andøya Arctic Guano Norway Øvre øvre Æråsvatnet |
geographic_facet |
Andøya Arctic Guano Norway Øvre øvre Æråsvatnet |
genre |
Alle alle Andøya Arctic little auk Northern Norway Tundra |
genre_facet |
Alle alle Andøya Arctic little auk Northern Norway Tundra |
op_relation |
Quaternary Science Reviews info:eu-repo/grantAgreement/RCN/FRIMEDBIO/213692/Norway/Ancient DNA of NW Europe reveals responses to climate change// info:eu-repo/grantAgreement/RCN/KLIMAFORSK/230617/Norway/Ancient DNA of NW Europe reveals responses to climate change// info:eu-repo/grantAgreement/RCN/FRIMEDBIO/250963/Norway/ECOGEN - Ecosystem change and species persistence over time: a genome-based approach// info:eu-repo/grantAgreement/EC/IceAGenT/819192/Norway/Ice Age Genomic Tracking of Refugia and Postglacial Dispersal// Alsos, Sjøgren P, Brown AG, Gielly L, Merkel MK, Paus A, Lammers Y, Edwards ME, Alm T, Leng, Goslar T, Langdon C, Bakke JB, Van Der Bilt Wvd. Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot”. Quaternary Science Reviews. 2020 FRIDAID 1828814 doi:10.1016/j.quascirev.2020.106364 0277-3791 1873-457X https://hdl.handle.net/10037/20256 |
op_rights |
openAccess Copyright 2020 The Author(s) |
op_doi |
https://doi.org/10.1016/j.quascirev.2020.106364 |
container_title |
Quaternary Science Reviews |
container_volume |
239 |
container_start_page |
106364 |
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1766273955026436096 |
spelling |
ftunivtroemsoe:oai:munin.uit.no:10037/20256 2023-05-15T13:16:26+02:00 Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot” Alsos, Inger Greve Sjøgren, Per Johan E Brown, Antony Gielly, Ludovic Merkel, Marie Føreid Paus, Aage Lammers, Youri Edwards, Mary E. Alm, Torbjørn Leng, Melanie Goslar, Tomasz Langdon, Cathrine Bakke, Jostein Van Der Bilt, Willem 2020-06-05 https://hdl.handle.net/10037/20256 https://doi.org/10.1016/j.quascirev.2020.106364 eng eng Elsevier Quaternary Science Reviews info:eu-repo/grantAgreement/RCN/FRIMEDBIO/213692/Norway/Ancient DNA of NW Europe reveals responses to climate change// info:eu-repo/grantAgreement/RCN/KLIMAFORSK/230617/Norway/Ancient DNA of NW Europe reveals responses to climate change// info:eu-repo/grantAgreement/RCN/FRIMEDBIO/250963/Norway/ECOGEN - Ecosystem change and species persistence over time: a genome-based approach// info:eu-repo/grantAgreement/EC/IceAGenT/819192/Norway/Ice Age Genomic Tracking of Refugia and Postglacial Dispersal// Alsos, Sjøgren P, Brown AG, Gielly L, Merkel MK, Paus A, Lammers Y, Edwards ME, Alm T, Leng, Goslar T, Langdon C, Bakke JB, Van Der Bilt Wvd. Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot”. Quaternary Science Reviews. 2020 FRIDAID 1828814 doi:10.1016/j.quascirev.2020.106364 0277-3791 1873-457X https://hdl.handle.net/10037/20256 openAccess Copyright 2020 The Author(s) VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2020 ftunivtroemsoe https://doi.org/10.1016/j.quascirev.2020.106364 2021-06-25T17:57:58Z Andøya on the NW coast of Norway is a key site for understanding the Last Glacial Maximum (LGM) in northern Europe. Controversy has arisen concerning the local conditions, especially about the timing and extent of local glacial cover, maximum July temperatures and whether pine and/or spruce could have grown there. We reviewed all existing data and add newly analysed ancient sedimentary DNA ( seda DNA), pollen, macrofossils, geochemistry and stable isotopes from three lake sediment cores from Øvre Æråsvatnet. A total of 23 new dates and age-depth modelling suggests the lake has been ice-free since GI2 (<23.4 cal ka BP) and possibly GS3 (<26.7 cal ka BP). Pinus and Picea seda DNA was found in all three cores but at such low frequencies that it could not be distinguished from background contamination. LGM samples have an exceptionally high organic matter content, with isotopic values indicating that carbon and nitrogen derive from a marine source. Along with finds of bones of the little auk ( Alle alle ), this indicates that the lake received guano from an adjacent bird colony. Seda DNA, pollen and macrofossil assemblages were dominated by Poaceae, Brassicaceae and Papaver , but scattered occurrence of species currently restricted to the Low Arctic Tundra Zone (July temperature of 8–9 °C) such as Apiaceae ( seda DNA, 8–9 °C), and Alchemilla alpina (macrofossil, 8–9 °C) were also recorded. The review of >14.7 cal ka BP data recorded 94 vascular plant taxa, of which 38% have a northern limit in Shrub Tundra or more southern vegetation zones. This unusual assemblage likely stems from a combination of proximity to ice-free water in summer, geographical isolation linked with stochastic long-distance dispersal events, and the presence of bird-fertilized habitats. The environmental reconstruction based on all records from the area does not preclude local growth of tree species, as the local climate combined with high nutrient input may have led to periodically suitable environmental ‘hotspot’ conditions. Article in Journal/Newspaper Alle alle Andøya Arctic little auk Northern Norway Tundra University of Tromsø: Munin Open Research Archive Andøya ENVELOPE(13.982,13.982,68.185,68.185) Arctic Guano ENVELOPE(141.604,141.604,-66.775,-66.775) Norway Øvre ENVELOPE(14.991,14.991,67.750,67.750) øvre Æråsvatnet ENVELOPE(16.035,16.035,69.256,69.256) Quaternary Science Reviews 239 106364 |