Spatial structure of boreal woodland caribou populations in northwest Canada
Local population units (LPUs) were delineated in Canada’s recovery strategy for threatened boreal woodland caribou (Rangifer tarandus caribou). Population viability analyses central to contemporary integrated risk assessments of LPUs implicitly assume geographic closure. Several LPUs in northwest Ca...
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ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/4902 2023-05-15T16:17:49+02:00 Spatial structure of boreal woodland caribou populations in northwest Canada Wilson, Steve Sutherland, Glenn Larter, Nicholas Kelly, Allicia McLaren, Ashley Hodson, James Hegel, Troy Steenweg, Robin Hervieux, Dave Nudds, Tom 2020-05-05 application/pdf https://septentrio.uit.no/index.php/rangifer/article/view/4902 https://doi.org/10.7557/2.40.1.4902 eng eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/4902/5235 https://septentrio.uit.no/index.php/rangifer/article/view/4902 doi:10.7557/2.40.1.4902 Copyright (c) 2020 Steve Wilson, Glenn Sutherland, Nicholas Larter, Allicia Kelly, Ashley McLaren, James Hodson, Troy Hegel, Robin Steenweg, Dave Hervieux, Tom Nudds http://creativecommons.org/licenses/by/3.0/ CC-BY Rangifer; Årg 40 Nr 1 (2020); 1-14 Rangifer; Vol 40 No 1 (2020); 1-14 1890-6729 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2020 ftunitroemsoe https://doi.org/10.7557/2.40.1.4902 2021-08-16T15:15:13Z Local population units (LPUs) were delineated in Canada’s recovery strategy for threatened boreal woodland caribou (Rangifer tarandus caribou). Population viability analyses central to contemporary integrated risk assessments of LPUs implicitly assume geographic closure. Several LPUs in northwest Canada, however, were in part delineated by geopolitical boundaries and/or included large areas in the absence of evidence of more finely resolved population spatial structure. We pooled >1.2 million locations from >1200 GPS or VHF-collared caribou from northeast British Columbia, northwest Alberta and southwestern Northwest Territories. Bayesian cluster analysis generated 10 alternative candidate LPUs based on a spatial cluster graph of the extent of pairwise co-occurrence of collared caribou. Up to four groups may be artifacts in as yet under-sampled areas. Four were mapped LPUs that were conserved (Prophet, Parker, Chinchaga and Red Earth). One small group between Parker and Snake-Sahtaneh known locally as the “Fort Nelson core,” and outside any mapped LPU, was also conserved. Finally, one large group, at >136000 km2, spanned all three jurisdictions and subsumed all of six delineated LPUs (Maxhamish, Snake-Sahtaneh, Calendar, Bistcho, Yates, Caribou Mountains) and part of southern Northwest Territories. These results suggest less geographic closure of LPUs than those currently delineated, but further analyses will be required to better reconcile various sources of knowledge about local population structure in this region. Article in Journal/Newspaper Fort Nelson Northwest Territories Rangifer Rangifer tarandus University of Tromsø: Septentrio Academic Publishing British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Canada Caribou Mountains ENVELOPE(-115.669,-115.669,59.200,59.200) Fort Nelson ENVELOPE(-122.700,-122.700,58.805,58.805) Northwest Territories Red Earth ENVELOPE(-115.267,-115.267,56.533,56.533) Rangifer 40 1 1 14 |
institution |
Open Polar |
collection |
University of Tromsø: Septentrio Academic Publishing |
op_collection_id |
ftunitroemsoe |
language |
English |
description |
Local population units (LPUs) were delineated in Canada’s recovery strategy for threatened boreal woodland caribou (Rangifer tarandus caribou). Population viability analyses central to contemporary integrated risk assessments of LPUs implicitly assume geographic closure. Several LPUs in northwest Canada, however, were in part delineated by geopolitical boundaries and/or included large areas in the absence of evidence of more finely resolved population spatial structure. We pooled >1.2 million locations from >1200 GPS or VHF-collared caribou from northeast British Columbia, northwest Alberta and southwestern Northwest Territories. Bayesian cluster analysis generated 10 alternative candidate LPUs based on a spatial cluster graph of the extent of pairwise co-occurrence of collared caribou. Up to four groups may be artifacts in as yet under-sampled areas. Four were mapped LPUs that were conserved (Prophet, Parker, Chinchaga and Red Earth). One small group between Parker and Snake-Sahtaneh known locally as the “Fort Nelson core,” and outside any mapped LPU, was also conserved. Finally, one large group, at >136000 km2, spanned all three jurisdictions and subsumed all of six delineated LPUs (Maxhamish, Snake-Sahtaneh, Calendar, Bistcho, Yates, Caribou Mountains) and part of southern Northwest Territories. These results suggest less geographic closure of LPUs than those currently delineated, but further analyses will be required to better reconcile various sources of knowledge about local population structure in this region. |
format |
Article in Journal/Newspaper |
author |
Wilson, Steve Sutherland, Glenn Larter, Nicholas Kelly, Allicia McLaren, Ashley Hodson, James Hegel, Troy Steenweg, Robin Hervieux, Dave Nudds, Tom |
spellingShingle |
Wilson, Steve Sutherland, Glenn Larter, Nicholas Kelly, Allicia McLaren, Ashley Hodson, James Hegel, Troy Steenweg, Robin Hervieux, Dave Nudds, Tom Spatial structure of boreal woodland caribou populations in northwest Canada |
author_facet |
Wilson, Steve Sutherland, Glenn Larter, Nicholas Kelly, Allicia McLaren, Ashley Hodson, James Hegel, Troy Steenweg, Robin Hervieux, Dave Nudds, Tom |
author_sort |
Wilson, Steve |
title |
Spatial structure of boreal woodland caribou populations in northwest Canada |
title_short |
Spatial structure of boreal woodland caribou populations in northwest Canada |
title_full |
Spatial structure of boreal woodland caribou populations in northwest Canada |
title_fullStr |
Spatial structure of boreal woodland caribou populations in northwest Canada |
title_full_unstemmed |
Spatial structure of boreal woodland caribou populations in northwest Canada |
title_sort |
spatial structure of boreal woodland caribou populations in northwest canada |
publisher |
Septentrio Academic Publishing |
publishDate |
2020 |
url |
https://septentrio.uit.no/index.php/rangifer/article/view/4902 https://doi.org/10.7557/2.40.1.4902 |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) ENVELOPE(-115.669,-115.669,59.200,59.200) ENVELOPE(-122.700,-122.700,58.805,58.805) ENVELOPE(-115.267,-115.267,56.533,56.533) |
geographic |
British Columbia Canada Caribou Mountains Fort Nelson Northwest Territories Red Earth |
geographic_facet |
British Columbia Canada Caribou Mountains Fort Nelson Northwest Territories Red Earth |
genre |
Fort Nelson Northwest Territories Rangifer Rangifer tarandus |
genre_facet |
Fort Nelson Northwest Territories Rangifer Rangifer tarandus |
op_source |
Rangifer; Årg 40 Nr 1 (2020); 1-14 Rangifer; Vol 40 No 1 (2020); 1-14 1890-6729 |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/4902/5235 https://septentrio.uit.no/index.php/rangifer/article/view/4902 doi:10.7557/2.40.1.4902 |
op_rights |
Copyright (c) 2020 Steve Wilson, Glenn Sutherland, Nicholas Larter, Allicia Kelly, Ashley McLaren, James Hodson, Troy Hegel, Robin Steenweg, Dave Hervieux, Tom Nudds http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7557/2.40.1.4902 |
container_title |
Rangifer |
container_volume |
40 |
container_issue |
1 |
container_start_page |
1 |
op_container_end_page |
14 |
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1766003731951779840 |