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The role of sea ice for vascular plant dispersal in the Arctic

Permanent lenke
https://hdl.handle.net/10037/10514
DOI
https://doi.org/10.1098/rsbl.2016.0264
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article.pdf (1.972Mb)
Main article (PDF)
Dato
2016-09
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Forfatter
Alsos, Inger Greve; Ehrich, Dorothee; Seidenkrantz, Marit-Solveig; Bennike, Ole; Kirchhefer, Andreas; Geirsdottir, Aslaug
Sammendrag
Sea ice has been suggested to be an important factor for dispersal of vascular plants in the Arctic. To assess its role for postglacial colonization in the North Atlantic region, we compiled data on the first Late Glacial to Holocene occurrence of vascular plant species in East Greenland, Iceland, the Faroe Islands and Svalbard. For each record, we reconstructed likely past dispersal events using data on species distributions and genetics. We compared these data to sea-ice reconstructions to evaluate the potential role of sea ice in these past colonization events and finally evaluated these results using a compilation of driftwood records as an independent source of evidence that sea ice can disperse biological material. Our results show that sea ice was, in general, more prevalent along the most likely dispersal routes at times of assumed first colonization than along other possible routes. Also, driftwood is frequently dispersed in regions that have sea ice today. Thus, sea ice may act as an important dispersal agent. Melting sea ice may hamper future dispersal of Arctic plants and thereby cause more genetic differentiation. It may also limit the northwards expansion of competing boreal species, and hence favour the persistence of Arctic species.
Beskrivelse
Published version. Source at http://dx.doi.org/10.1098/rsbl.2016.0264
Forlag
Royal Society Publishing
Sitering
Alsos IG, Ehrich D, Seidenkrantz M, Bennike O, Kirchhefer AJ, Geirsdottir A. The role of sea ice for vascular plant dispersal in the Arctic. Biology Letters. 2016;12(9)
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  • Artikler, rapporter og annet (Universitetsmuseet) [425]

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