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dc.contributor.authorBirkeland, Siri
dc.contributor.authorSkjetne, Idunn Elisabeth Borgen
dc.contributor.authorBrysting, Anne Krag
dc.contributor.authorElven, Reidar
dc.contributor.authorAlsos, Inger Greve
dc.date.accessioned2018-03-19T10:06:52Z
dc.date.available2018-03-19T10:06:52Z
dc.date.issued2017-01-19
dc.description.abstractSmall, isolated and/or peripheral populations are expected to harbour low levels of genetic variation and may therefore have reduced adaptability to environmental change, including climate warming. In the Arctic, global warming has already caused vegetation change across the region and is acting as a significant stressor on Arctic biodiversity. Many of the rare plants in the Arctic are relicts from early Holocene warm periods, but their ability to benefit from the current warming is dependent on the viability of their populations. We therefore examined Amplified Fragment Length Polymorphism (AFLP) data from regional red listed vascular plant species in the High Arctic archipelago of Svalbard and reference populations from the main distribution area of: (1) Botrychium lunaria, (2) Carex capillaris ssp. fuscidula, (3) Comastoma tenellum, (4) Kobresia simpliciuscula ssp. subholarctica, (5) Ranunculus wilanderi, (6) Sibbaldia procumbens and (7) Tofieldia pusilla. In addition, we gathered population size data in Svalbard. The Svalbard populations had low genetic diversity and distinctiveness and few or no private markers compared to populations outside the archipelago. This is similar to observations in other rare species in Svalbard and the genetic depletion may be due to an initial founder effect and/or a genetic bottleneck caused by late Holocene cooling. There seems to be limited gene flow from other areas and the Svalbard populations should therefore be considered as demographically independent management units. Overall, these management units have small and/or few populations and are therefore prone to stochastic events which may further increase vulnerability to inbreeding depression, loss of genetic variation, and reduced evolutionary potential. Our results support theory predicting lower levels of genetic diversity in small, isolated and/or peripheral populations and may be of importance for management of other rare plant species in the Arctic.en_US
dc.description.sponsorshipSvalbard Environmental Protection Funden_US
dc.descriptionSource at <a href=https://doi.org/10.1093/aobpla/plx001> https://doi.org/10.1093/aobpla/plx001 </a>.en_US
dc.identifier.citationBirkeland, S., Skjetne, I.E., Brysting, A.K., Elven, R. & Alsos, I.G. (2017). Living on the edge: conservation genetics of seven thermophilous plant species in a high Arctic archipelago. AoB Plants, 9(1).en_US
dc.identifier.cristinIDFRIDAID 1490535
dc.identifier.doi10.1093/aobpla/plx001
dc.identifier.issn2041-2851
dc.identifier.urihttps://hdl.handle.net/10037/12370
dc.language.isoengen_US
dc.publisherOxford University Pressen_US
dc.relation.journalAoB Plants
dc.relation.projectIDNorges forskningsråd: 248799en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/UNI-MUSEER/248799/Norway/ForBio - The Research School in Biosystematics//en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectAmplified fragment length polymorphism (AFLP)en_US
dc.subjectArcticen_US
dc.subjectclimate changeen_US
dc.subjectconservation geneticsen_US
dc.subjectedge populationsen_US
dc.subjectislandsen_US
dc.subjectregional red listen_US
dc.subjectSvalbarden_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.subjectVDP::Mathematics and natural science: 400::Basic biosciences: 470en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.titleLiving on the edge: conservation genetics of seven thermophilous plant species in a high Arctic archipelagoen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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