Comparing the genetic population structure of two species of arctic lemmings: more local differentiation in Lemmus trimucronatus than in Dicrostonyx groenlandicus
Collared and brown lemmings ( Dicrostonyx groenlandicus and Lemmus trimucronatus ) are two largely sympatric and ecologically comparable species of arctic microtine rodents, differing however in some respects which allow us to hypothesise differences in the genetic structure of their populations. Co...
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Online Access: | http://dx.doi.org/10.1034/j.1600-0706.2001.10963.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1034%2Fj.1600-0706.2001.10963.x https://onlinelibrary.wiley.com/doi/pdf/10.1034/j.1600-0706.2001.10963.x |
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crwiley:10.1034/j.1600-0706.2001.10963.x 2024-06-02T08:01:14+00:00 Comparing the genetic population structure of two species of arctic lemmings: more local differentiation in Lemmus trimucronatus than in Dicrostonyx groenlandicus Ehrich, Dorothee Krebs, Charles J. Kenney, Alice J. Stenseth, Nils Chr. 2001 http://dx.doi.org/10.1034/j.1600-0706.2001.10963.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1034%2Fj.1600-0706.2001.10963.x https://onlinelibrary.wiley.com/doi/pdf/10.1034/j.1600-0706.2001.10963.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Oikos volume 94, issue 1, page 143-150 ISSN 0030-1299 1600-0706 journal-article 2001 crwiley https://doi.org/10.1034/j.1600-0706.2001.10963.x 2024-05-03T11:08:20Z Collared and brown lemmings ( Dicrostonyx groenlandicus and Lemmus trimucronatus ) are two largely sympatric and ecologically comparable species of arctic microtine rodents, differing however in some respects which allow us to hypothesise differences in the genetic structure of their populations. Collared lemmings are particularly well adapted to life at high latitude, they occasionally emerge to the surface of the snow and may disperse over larger distances than brown lemmings – possibly even over snow and ice. This should result in more local differentiation among populations of brown lemmings than among populations of collared lemmings. We compared the genetic population structure between the two lemming species in a fragmented landscape with small islands in the central Canadian Arctic using four microsatellite loci and partial mitochondrial control region sequences. Both types of genetic markers showed higher differentiation ( F ST values) among local populations for brown lemmings than for collared lemmings. We discuss to what extent the observed genetic differences may be explained by differences in dispersal rates in addition to differences in average effective population size. Article in Journal/Newspaper Arctic Dicrostonyx groenlandicus Lemmus trimucronatus Wiley Online Library Arctic Oikos 94 1 143 150 |
institution |
Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Collared and brown lemmings ( Dicrostonyx groenlandicus and Lemmus trimucronatus ) are two largely sympatric and ecologically comparable species of arctic microtine rodents, differing however in some respects which allow us to hypothesise differences in the genetic structure of their populations. Collared lemmings are particularly well adapted to life at high latitude, they occasionally emerge to the surface of the snow and may disperse over larger distances than brown lemmings – possibly even over snow and ice. This should result in more local differentiation among populations of brown lemmings than among populations of collared lemmings. We compared the genetic population structure between the two lemming species in a fragmented landscape with small islands in the central Canadian Arctic using four microsatellite loci and partial mitochondrial control region sequences. Both types of genetic markers showed higher differentiation ( F ST values) among local populations for brown lemmings than for collared lemmings. We discuss to what extent the observed genetic differences may be explained by differences in dispersal rates in addition to differences in average effective population size. |
format |
Article in Journal/Newspaper |
author |
Ehrich, Dorothee Krebs, Charles J. Kenney, Alice J. Stenseth, Nils Chr. |
spellingShingle |
Ehrich, Dorothee Krebs, Charles J. Kenney, Alice J. Stenseth, Nils Chr. Comparing the genetic population structure of two species of arctic lemmings: more local differentiation in Lemmus trimucronatus than in Dicrostonyx groenlandicus |
author_facet |
Ehrich, Dorothee Krebs, Charles J. Kenney, Alice J. Stenseth, Nils Chr. |
author_sort |
Ehrich, Dorothee |
title |
Comparing the genetic population structure of two species of arctic lemmings: more local differentiation in Lemmus trimucronatus than in Dicrostonyx groenlandicus |
title_short |
Comparing the genetic population structure of two species of arctic lemmings: more local differentiation in Lemmus trimucronatus than in Dicrostonyx groenlandicus |
title_full |
Comparing the genetic population structure of two species of arctic lemmings: more local differentiation in Lemmus trimucronatus than in Dicrostonyx groenlandicus |
title_fullStr |
Comparing the genetic population structure of two species of arctic lemmings: more local differentiation in Lemmus trimucronatus than in Dicrostonyx groenlandicus |
title_full_unstemmed |
Comparing the genetic population structure of two species of arctic lemmings: more local differentiation in Lemmus trimucronatus than in Dicrostonyx groenlandicus |
title_sort |
comparing the genetic population structure of two species of arctic lemmings: more local differentiation in lemmus trimucronatus than in dicrostonyx groenlandicus |
publisher |
Wiley |
publishDate |
2001 |
url |
http://dx.doi.org/10.1034/j.1600-0706.2001.10963.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1034%2Fj.1600-0706.2001.10963.x https://onlinelibrary.wiley.com/doi/pdf/10.1034/j.1600-0706.2001.10963.x |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Dicrostonyx groenlandicus Lemmus trimucronatus |
genre_facet |
Arctic Dicrostonyx groenlandicus Lemmus trimucronatus |
op_source |
Oikos volume 94, issue 1, page 143-150 ISSN 0030-1299 1600-0706 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1034/j.1600-0706.2001.10963.x |
container_title |
Oikos |
container_volume |
94 |
container_issue |
1 |
container_start_page |
143 |
op_container_end_page |
150 |
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1800745537314488320 |