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dc.contributor.authorClarke, Charlotte
dc.contributor.authorEdwards, Mary Elizabeth
dc.contributor.authorBrown, Antony Gavin
dc.contributor.authorGielly, Ludovic
dc.contributor.authorLammers, Youri
dc.contributor.authorHeintzman, Peter D.
dc.contributor.authorMurguzur, Francisco Javier Ancin
dc.contributor.authorBråthen, Kari Anne
dc.contributor.authorGoslar, Tomasz
dc.contributor.authorAlsos, Inger Greve
dc.date.accessioned2019-01-18T10:30:54Z
dc.date.available2019-01-18T10:30:54Z
dc.date.issued2018-10-30
dc.description.abstractWe present a Holocene record of floristic diversity and environmental change for the central Varanger Peninsula, Finnmark, based on ancient DNA extracted from the sediments of a small lake (<i>sed</i>aDNA). The record covers the period c. 10 700 to 3300 cal. a BP and is complemented by pollen data. Measures of species richness, sample evenness and beta diversity were calculated based on <i>sed</i>aDNA sampling intervals and 1000‐year time windows. We identified 101 vascular plant and 17 bryophyte taxa, a high proportion (86%) of which are still growing within the region today. The high species richness (>60 taxa) observed in the Early Holocene, including representatives from all important plant functional groups, shows that modern shrub‐tundra communities, and much of their species complement, were in place as early as c. 10 700 cal. a BP. We infer that postglacial colonization of the area occurred prior to the full Holocene, during the Pleistocene‐Holocene transition, Younger Dryas stadial or earlier. Abundant DNA of the extra‐limital aquatic plant <i>Callitriche hermaphroditica</i> suggests it expanded its range northward between c. 10 200 and 9600 cal. a BP, when summers were warmer than present. High values of <i>Pinus</i> DNA occur throughout the record, but we cannot say with certainty if they represent prior local presence; however, pollen influx values >500 grains cm<sup>−2</sup> a<sup>−1</sup> between c. 8000 and 7300 cal. a BP strongly suggest the presence of pine woodland during this period. As the site lies beyond the modern tree limit of pine, it is likely that this expansion also reflects a response to warmer Early Holocene summers.en_US
dc.description.sponsorshipArtsdatabanken UK Natural Environment Research Councilen_US
dc.descriptionSource at <a href=https://doi.org/10.1111/bor.12357>https://doi.org/10.1111/bor.12357</a>en_US
dc.identifier.citationClarke, C., Edwards, M.E., Brown, A.G., Gielly, L., Lammers, Y., Heintzman, P.D., ... Alsos, I.G.A. (2018). Holocene floristic diversity and richness in northeast Norway revealed by sedimentary ancient DNA (<i>sed</i>aDNA) and pollen. <i>Boreas</i>. https://doi.org/10.1111/bor.12357en_US
dc.identifier.cristinIDFRIDAID 1613475
dc.identifier.doi10.1111/bor.12357
dc.identifier.issn0300-9483
dc.identifier.issn1502-3885
dc.identifier.urihttps://hdl.handle.net/10037/14481
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.ispartofLammers, Y. (2020). Sedimentary ancient DNA: Exploring methods of ancient DNA analysis for different taxonomic groups. (Doctoral thesis). <a href=https://hdl.handle.net/10037/17437>https://hdl.handle.net/10037/17437. </a>
dc.relation.journalBoreas
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/KLIMAFORSK/255415/Norway/Climate History along the Arctic Seaboard of Eurasia/CHASE/en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/UNI-MUSEER/248799/Norway/ForBio - The Research School in Biosystematics//en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/FORINFRA/226134/Norway/Norwegian barcode of life network/NorBOL/en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/FRIMEDBIO/213692/Norway/Ancient DNA of NW Europe reveals responses to climate change//en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology, glaciology: 465en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi, glasiologi: 465en_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450::Stratigraphy and paleontology: 461en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Stratigrafi og paleontologi: 461en_US
dc.titleHolocene floristic diversity and richness in northeast Norway revealed by sedimentary ancient DNA (sedaDNA) and pollenen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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