George’s Island, Labrador - A high-density predator-free refuge for a woodland caribou subpopulation?
The movement patterns and demographic parameters were measured for caribou (Rangifer tarandus caribou) on George’s Island (Labrador, Canada) to determine if the population is separate from the Mealy Mountain Caribou Herd. Movements between George’s Island caribou and nearby Mealy Mountain caribou we...
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Language: | English |
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Septentrio Academic Publishing
2007
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Online Access: | https://septentrio.uit.no/index.php/rangifer/article/view/320 https://doi.org/10.7557/2.27.4.320 |
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ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/320 2023-05-15T18:03:55+02:00 George’s Island, Labrador - A high-density predator-free refuge for a woodland caribou subpopulation? Jeffery, Rebecca A. Otto, Robert D. Phillips, Frank R. 2007-04-01 application/pdf https://septentrio.uit.no/index.php/rangifer/article/view/320 https://doi.org/10.7557/2.27.4.320 eng eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/320/311 https://septentrio.uit.no/index.php/rangifer/article/view/320 doi:10.7557/2.27.4.320 Copyright (c) 2015 Rebecca A. Jeffery, Robert D. Otto, Frank R. Phillips http://creativecommons.org/licenses/by/3.0/ CC-BY Rangifer; Vol 27 (2007): Special Issue No.17; 51-56 1890-6729 high density island population Labrador predator-free Rangifer tarandus caribou subpopulation ungulate population info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2007 ftunitroemsoe https://doi.org/10.7557/2.27.4.320 2021-08-16T14:20:42Z The movement patterns and demographic parameters were measured for caribou (Rangifer tarandus caribou) on George’s Island (Labrador, Canada) to determine if the population is separate from the Mealy Mountain Caribou Herd. Movements between George’s Island caribou and nearby Mealy Mountain caribou were examined through satellite telemetry (April 2005 to April 2006). Demographic information was collected through aerial classification surveys. The predator-free island is currently maintaining a density of 22.5-26.5 caribou/km2. Female survival appears high and the recruitment rate in late fall-early spring was 19.0-29.2% calves. Mainland caribou moved very little throughout the year, travelling no more than 53.7 km on average from their initial collaring locations. Also, satellite data indicated no mixing between animals on George’s Island and the mainland. The elevated caribou density and high proportion of calves suggest that George’s Island could at times be acting as a predator-free recruitment area and that George’s Island may be a subpopulation from which animals disperse to the mainland. Article in Journal/Newspaper Rangifer Rangifer tarandus University of Tromsø: Septentrio Academic Publishing Canada Rangifer 27 4 51 |
institution |
Open Polar |
collection |
University of Tromsø: Septentrio Academic Publishing |
op_collection_id |
ftunitroemsoe |
language |
English |
topic |
high density island population Labrador predator-free Rangifer tarandus caribou subpopulation ungulate population |
spellingShingle |
high density island population Labrador predator-free Rangifer tarandus caribou subpopulation ungulate population Jeffery, Rebecca A. Otto, Robert D. Phillips, Frank R. George’s Island, Labrador - A high-density predator-free refuge for a woodland caribou subpopulation? |
topic_facet |
high density island population Labrador predator-free Rangifer tarandus caribou subpopulation ungulate population |
description |
The movement patterns and demographic parameters were measured for caribou (Rangifer tarandus caribou) on George’s Island (Labrador, Canada) to determine if the population is separate from the Mealy Mountain Caribou Herd. Movements between George’s Island caribou and nearby Mealy Mountain caribou were examined through satellite telemetry (April 2005 to April 2006). Demographic information was collected through aerial classification surveys. The predator-free island is currently maintaining a density of 22.5-26.5 caribou/km2. Female survival appears high and the recruitment rate in late fall-early spring was 19.0-29.2% calves. Mainland caribou moved very little throughout the year, travelling no more than 53.7 km on average from their initial collaring locations. Also, satellite data indicated no mixing between animals on George’s Island and the mainland. The elevated caribou density and high proportion of calves suggest that George’s Island could at times be acting as a predator-free recruitment area and that George’s Island may be a subpopulation from which animals disperse to the mainland. |
format |
Article in Journal/Newspaper |
author |
Jeffery, Rebecca A. Otto, Robert D. Phillips, Frank R. |
author_facet |
Jeffery, Rebecca A. Otto, Robert D. Phillips, Frank R. |
author_sort |
Jeffery, Rebecca A. |
title |
George’s Island, Labrador - A high-density predator-free refuge for a woodland caribou subpopulation? |
title_short |
George’s Island, Labrador - A high-density predator-free refuge for a woodland caribou subpopulation? |
title_full |
George’s Island, Labrador - A high-density predator-free refuge for a woodland caribou subpopulation? |
title_fullStr |
George’s Island, Labrador - A high-density predator-free refuge for a woodland caribou subpopulation? |
title_full_unstemmed |
George’s Island, Labrador - A high-density predator-free refuge for a woodland caribou subpopulation? |
title_sort |
george’s island, labrador - a high-density predator-free refuge for a woodland caribou subpopulation? |
publisher |
Septentrio Academic Publishing |
publishDate |
2007 |
url |
https://septentrio.uit.no/index.php/rangifer/article/view/320 https://doi.org/10.7557/2.27.4.320 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Rangifer Rangifer tarandus |
genre_facet |
Rangifer Rangifer tarandus |
op_source |
Rangifer; Vol 27 (2007): Special Issue No.17; 51-56 1890-6729 |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/320/311 https://septentrio.uit.no/index.php/rangifer/article/view/320 doi:10.7557/2.27.4.320 |
op_rights |
Copyright (c) 2015 Rebecca A. Jeffery, Robert D. Otto, Frank R. Phillips http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7557/2.27.4.320 |
container_title |
Rangifer |
container_volume |
27 |
container_issue |
4 |
container_start_page |
51 |
_version_ |
1766175073118453760 |