Ancient sedimentary DNA shows rapid post-glacial colonisation of Iceland followed by relatively stable vegetation until the Norse settlement (Landnám) AD 870
Understanding patterns of colonisation is important for explaining both the distribution of single species and anticipating how ecosystems may respond to global warming. Insular flora may be especially vulnerable because oceans represent severe dispersal barriers. Here we analyse two lake sediment c...
Published in: | Quaternary Science Reviews |
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Main Authors: | , , , , , , , , , , , , , |
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Language: | English |
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The Arctic University Museum of Norway, UiT The Arctic University of Norway, Tromsø, Norway
2021
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-225430 https://doi.org/10.1016/j.quascirev.2021.106903 |
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ftumeauniv:oai:DiVA.org:umu-225430 |
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Umeå University: Publications (DiVA) |
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ftumeauniv |
language |
English |
topic |
Ancient DNA Colonisation HoloceneIsland Lake sediments Metabarcoding Vegetation history Ecology Ekologi Environmental Sciences Miljövetenskap |
spellingShingle |
Ancient DNA Colonisation HoloceneIsland Lake sediments Metabarcoding Vegetation history Ecology Ekologi Environmental Sciences Miljövetenskap Alsos, Inger Greve Lammers, Youri Kjellman, Sofia E. Føreid Merkel, Marie Kristine Bender, Emma M. Rouillard, Alexandra Erlendsson, Egill Guðmundsdóttir, Esther Ruth Benediktsson, Ãvar Örn Farnsworth, Wesley R. Brynjólfsson, Skafti GÃsladóttir, Guðrún Eddudóttir, Sigrún Dögg Schomacker, Anders Ancient sedimentary DNA shows rapid post-glacial colonisation of Iceland followed by relatively stable vegetation until the Norse settlement (Landnám) AD 870 |
topic_facet |
Ancient DNA Colonisation HoloceneIsland Lake sediments Metabarcoding Vegetation history Ecology Ekologi Environmental Sciences Miljövetenskap |
description |
Understanding patterns of colonisation is important for explaining both the distribution of single species and anticipating how ecosystems may respond to global warming. Insular flora may be especially vulnerable because oceans represent severe dispersal barriers. Here we analyse two lake sediment cores from Iceland for ancient sedimentary DNA to infer patterns of colonisation and Holocene vegetation development. Our cores from lakes Torfdalsvatn and Nykurvatn span the last c. 12,000 cal yr BP and c. 8600 cal yr BP, respectively. With near-centennial resolution, we identified a total of 191 plant taxa, with 152 taxa identified in the sedimentary record of Torfdalsvatn and 172 plant taxa in the sedimentary record of Nykurvatn. The terrestrial vegetation at Torfdalsvatn was initially dominated by bryophytes, arctic herbs such as Saxifraga spp. and grasses. Around 10,100 cal yr BP, a massive immigration of new taxa was observed, and shrubs and dwarf shrubs became common whereas aquatic macrophytes became dominant. At Nykurvatn, the dominant taxa were all present in the earliest samples; shrubs and dwarf shrubs were more abundant at this site than at Torfdalsvatn. There was an overall steep increase both in the local accumulated richness and regional species pool until 8000 cal yr BP, by which time ¾ of all taxa identified had arrived. The period 4500-1000 cal yr BP witnessed the appearance of a a small number of bryophytes, graminoids and forbs that were not recorded in earlier samples. The last millennium, after human settlement of the island (Landnám), is characterised by a sudden disappearance of Juniperus communis, but also reappearance of some high arctic forbs and dwarf shrubs. Notable immigration during the Holocene coincides with periods of increased incidence of sea ice, and we hypothesise that this may have acted as a dispersal vector. Thus, although ongoing climate change might provide a suitable habitat in Iceland for a large range of species only found in the neighbouring regions today, the reduction ... |
format |
Article in Journal/Newspaper |
author |
Alsos, Inger Greve Lammers, Youri Kjellman, Sofia E. Føreid Merkel, Marie Kristine Bender, Emma M. Rouillard, Alexandra Erlendsson, Egill Guðmundsdóttir, Esther Ruth Benediktsson, Ãvar Örn Farnsworth, Wesley R. Brynjólfsson, Skafti GÃsladóttir, Guðrún Eddudóttir, Sigrún Dögg Schomacker, Anders |
author_facet |
Alsos, Inger Greve Lammers, Youri Kjellman, Sofia E. Føreid Merkel, Marie Kristine Bender, Emma M. Rouillard, Alexandra Erlendsson, Egill Guðmundsdóttir, Esther Ruth Benediktsson, Ãvar Örn Farnsworth, Wesley R. Brynjólfsson, Skafti GÃsladóttir, Guðrún Eddudóttir, Sigrún Dögg Schomacker, Anders |
author_sort |
Alsos, Inger Greve |
title |
Ancient sedimentary DNA shows rapid post-glacial colonisation of Iceland followed by relatively stable vegetation until the Norse settlement (Landnám) AD 870 |
title_short |
Ancient sedimentary DNA shows rapid post-glacial colonisation of Iceland followed by relatively stable vegetation until the Norse settlement (Landnám) AD 870 |
title_full |
Ancient sedimentary DNA shows rapid post-glacial colonisation of Iceland followed by relatively stable vegetation until the Norse settlement (Landnám) AD 870 |
title_fullStr |
Ancient sedimentary DNA shows rapid post-glacial colonisation of Iceland followed by relatively stable vegetation until the Norse settlement (Landnám) AD 870 |
title_full_unstemmed |
Ancient sedimentary DNA shows rapid post-glacial colonisation of Iceland followed by relatively stable vegetation until the Norse settlement (Landnám) AD 870 |
title_sort |
ancient sedimentary dna shows rapid post-glacial colonisation of iceland followed by relatively stable vegetation until the norse settlement (landnã¡m) ad 870 |
publisher |
The Arctic University Museum of Norway, UiT The Arctic University of Norway, Tromsø, Norway |
publishDate |
2021 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-225430 https://doi.org/10.1016/j.quascirev.2021.106903 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Global warming Iceland Sea ice |
genre_facet |
Arctic Climate change Global warming Iceland Sea ice |
op_relation |
Quaternary Science Reviews, 0277-3791, 2021, 259, orcid:0000-0002-8610-1085 orcid:0000-0003-1165-8601 orcid:0000-0001-5824-5607 orcid:0000-0002-2792-1964 orcid:0000-0002-8031-9008 http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-225430 doi:10.1016/j.quascirev.2021.106903 ISI:000644423800001 Scopus 2-s2.0-85103787832 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2021.106903 |
container_title |
Quaternary Science Reviews |
container_volume |
259 |
container_start_page |
106903 |
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1802641274908442624 |
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ftumeauniv:oai:DiVA.org:umu-225430 2024-06-23T07:50:23+00:00 Ancient sedimentary DNA shows rapid post-glacial colonisation of Iceland followed by relatively stable vegetation until the Norse settlement (Landnám) AD 870 Alsos, Inger Greve Lammers, Youri Kjellman, Sofia E. Føreid Merkel, Marie Kristine Bender, Emma M. Rouillard, Alexandra Erlendsson, Egill Guðmundsdóttir, Esther Ruth Benediktsson, Ãvar Örn Farnsworth, Wesley R. Brynjólfsson, Skafti GÃsladóttir, Guðrún Eddudóttir, Sigrún Dögg Schomacker, Anders 2021 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-225430 https://doi.org/10.1016/j.quascirev.2021.106903 eng eng The Arctic University Museum of Norway, UiT The Arctic University of Norway, Tromsø, Norway Department of Geosciences, UiT The Arctic University of Norway, Langnes, Tromsø, Norway Department of Geosciences, UiT The Arctic University of Norway, Langnes, Tromsø, Norway; Section for GeoGenetics, GLOBE Institute, University of Copenhagen, Copenhagen, Denmark Institute of Life and Environmental Sciences, University of Iceland, Askja, ReykjavÃk, Iceland Section for GeoGenetics, GLOBE Institute, University of Copenhagen, Copenhagen, Denmark; Institute of Earth Sciences, Nordic Volcanological Center, University of Iceland, Askja,ReykjavÃk, Icelan Institute of Earth Sciences, University of Iceland, Askja, ReykjavÃk, Iceland Nordic Volcanological Center, Institute of Earth Sciences, University of Iceland, Askja, ReykjavÃk, Iceland Icelandic Institute of Natural History, Borgum við Norðurslóð, Akureyri, Iceland Institute of Life and Environmental Sciences, University of Iceland, Askja, ReykjavÃk, Iceland; Institute of Earth Sciences, University of Iceland, Askja, ReykjavÃk, Iceland Department of Archaeology and Ancient History, Uppsala University, Uppsala, Sweden Quaternary Science Reviews, 0277-3791, 2021, 259, orcid:0000-0002-8610-1085 orcid:0000-0003-1165-8601 orcid:0000-0001-5824-5607 orcid:0000-0002-2792-1964 orcid:0000-0002-8031-9008 http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-225430 doi:10.1016/j.quascirev.2021.106903 ISI:000644423800001 Scopus 2-s2.0-85103787832 info:eu-repo/semantics/openAccess Ancient DNA Colonisation HoloceneIsland Lake sediments Metabarcoding Vegetation history Ecology Ekologi Environmental Sciences Miljövetenskap Article in journal info:eu-repo/semantics/article text 2021 ftumeauniv https://doi.org/10.1016/j.quascirev.2021.106903 2024-06-11T23:52:31Z Understanding patterns of colonisation is important for explaining both the distribution of single species and anticipating how ecosystems may respond to global warming. Insular flora may be especially vulnerable because oceans represent severe dispersal barriers. Here we analyse two lake sediment cores from Iceland for ancient sedimentary DNA to infer patterns of colonisation and Holocene vegetation development. Our cores from lakes Torfdalsvatn and Nykurvatn span the last c. 12,000 cal yr BP and c. 8600 cal yr BP, respectively. With near-centennial resolution, we identified a total of 191 plant taxa, with 152 taxa identified in the sedimentary record of Torfdalsvatn and 172 plant taxa in the sedimentary record of Nykurvatn. The terrestrial vegetation at Torfdalsvatn was initially dominated by bryophytes, arctic herbs such as Saxifraga spp. and grasses. Around 10,100 cal yr BP, a massive immigration of new taxa was observed, and shrubs and dwarf shrubs became common whereas aquatic macrophytes became dominant. At Nykurvatn, the dominant taxa were all present in the earliest samples; shrubs and dwarf shrubs were more abundant at this site than at Torfdalsvatn. There was an overall steep increase both in the local accumulated richness and regional species pool until 8000 cal yr BP, by which time ¾ of all taxa identified had arrived. The period 4500-1000 cal yr BP witnessed the appearance of a a small number of bryophytes, graminoids and forbs that were not recorded in earlier samples. The last millennium, after human settlement of the island (Landnám), is characterised by a sudden disappearance of Juniperus communis, but also reappearance of some high arctic forbs and dwarf shrubs. Notable immigration during the Holocene coincides with periods of increased incidence of sea ice, and we hypothesise that this may have acted as a dispersal vector. Thus, although ongoing climate change might provide a suitable habitat in Iceland for a large range of species only found in the neighbouring regions today, the reduction ... Article in Journal/Newspaper Arctic Climate change Global warming Iceland Sea ice Umeå University: Publications (DiVA) Arctic Quaternary Science Reviews 259 106903 |