Mechanisms influencing the winter distribution of wolverine Gulo gulo luscus in the southern Columbia Mountains, Canada
To better understand the mechanisms driving the distribution of a threatened carnivore, wolverine Gulo gulo, in the southern Columbia Mountains, we contrasted four hypotheses; climate, food, human disturbance and trapping harvest. We used non-invasive hair snagging methods to examine wolverine occup...
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Language: | English |
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Online Access: | https://arcabc.ca/islandora/object/sc%3A3996 https://doi.org/10.2981/wlb.00480 |
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ftarcabc:oai:arcabc.ca:sc_3996 2024-06-02T07:54:40+00:00 Mechanisms influencing the winter distribution of wolverine Gulo gulo luscus in the southern Columbia Mountains, Canada Hausleitner, Doris (Doris Hausleitner) (Author) Kortello, Andrea (Author) Mowat, Garth (Author) Columbia Mountains (B.C.) British Columbia 2019-09-27 https://arcabc.ca/islandora/object/sc%3A3996 https://doi.org/10.2981/wlb.00480 English eng Oikos Editorial Office Wildlife Biology https://arcabc.ca/islandora/object/sc%3A3996 sc:3996 doi:10.2981/wlb.00480 author Wolverene Wolverene--Columbia Mountains (B.C.) article Text 2019 ftarcabc https://doi.org/10.2981/wlb.00480 2024-05-06T00:30:44Z To better understand the mechanisms driving the distribution of a threatened carnivore, wolverine Gulo gulo, in the southern Columbia Mountains, we contrasted four hypotheses; climate, food, human disturbance and trapping harvest. We used non-invasive hair snagging methods to examine wolverine occupancy with respect to these factors, collectively and by sex, at a 5 km radius scale around sampling sites and at a larger 10 km radius to evaluate consistency over changes in scale. For all analyses our top models included food and human disturbance. Of the four food items examined; caribou Rangifer tarandus, mountain goat Oreamnos americanus, moose Alces alces and hoary marmot Marmota caligata, wolverine occurrence was most closely related to hoary marmot habitat. With regards to human disturbance, we documented a negative association with forestry road density and a positive association with protected areas. The importance of climate was low compared to the food and disturbance hypotheses. Somewhat surprisingly, recent harvest was positively associated with subsequent wolverine presence. Our top 10 km scale models were similar to the 5 km scale, but with a stronger positive link to caribou distribution. We show that marmot habitat is important to wolverine in winter and suggest that management actions for conservation prioritize factors related to female occurrence, as these were more clearly defined than male. We demonstrate that human disturbance is a major driver of wolverine distribution. Protected areas appear to be providing secure habitat, and reducing road density or mechanized use of roads in winter should be considered for species conservation. A positive spatial relationship with recent harvest, in the context of a heavily harvested population, suggests that harvest data alone may not be useful in detecting population declines. Peer reviewed Article in Journal/Newspaper Alces alces Gulo gulo Rangifer tarandus Arca (BC's Digital Treasures) Canada British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Columbia Mountains ENVELOPE(-63.852,-63.852,-70.197,-70.197) Wildlife Biology 2019 1 |
institution |
Open Polar |
collection |
Arca (BC's Digital Treasures) |
op_collection_id |
ftarcabc |
language |
English |
topic |
Wolverene Wolverene--Columbia Mountains (B.C.) |
spellingShingle |
Wolverene Wolverene--Columbia Mountains (B.C.) Mechanisms influencing the winter distribution of wolverine Gulo gulo luscus in the southern Columbia Mountains, Canada |
topic_facet |
Wolverene Wolverene--Columbia Mountains (B.C.) |
description |
To better understand the mechanisms driving the distribution of a threatened carnivore, wolverine Gulo gulo, in the southern Columbia Mountains, we contrasted four hypotheses; climate, food, human disturbance and trapping harvest. We used non-invasive hair snagging methods to examine wolverine occupancy with respect to these factors, collectively and by sex, at a 5 km radius scale around sampling sites and at a larger 10 km radius to evaluate consistency over changes in scale. For all analyses our top models included food and human disturbance. Of the four food items examined; caribou Rangifer tarandus, mountain goat Oreamnos americanus, moose Alces alces and hoary marmot Marmota caligata, wolverine occurrence was most closely related to hoary marmot habitat. With regards to human disturbance, we documented a negative association with forestry road density and a positive association with protected areas. The importance of climate was low compared to the food and disturbance hypotheses. Somewhat surprisingly, recent harvest was positively associated with subsequent wolverine presence. Our top 10 km scale models were similar to the 5 km scale, but with a stronger positive link to caribou distribution. We show that marmot habitat is important to wolverine in winter and suggest that management actions for conservation prioritize factors related to female occurrence, as these were more clearly defined than male. We demonstrate that human disturbance is a major driver of wolverine distribution. Protected areas appear to be providing secure habitat, and reducing road density or mechanized use of roads in winter should be considered for species conservation. A positive spatial relationship with recent harvest, in the context of a heavily harvested population, suggests that harvest data alone may not be useful in detecting population declines. Peer reviewed |
author2 |
Hausleitner, Doris (Doris Hausleitner) (Author) Kortello, Andrea (Author) Mowat, Garth (Author) |
format |
Article in Journal/Newspaper |
title |
Mechanisms influencing the winter distribution of wolverine Gulo gulo luscus in the southern Columbia Mountains, Canada |
title_short |
Mechanisms influencing the winter distribution of wolverine Gulo gulo luscus in the southern Columbia Mountains, Canada |
title_full |
Mechanisms influencing the winter distribution of wolverine Gulo gulo luscus in the southern Columbia Mountains, Canada |
title_fullStr |
Mechanisms influencing the winter distribution of wolverine Gulo gulo luscus in the southern Columbia Mountains, Canada |
title_full_unstemmed |
Mechanisms influencing the winter distribution of wolverine Gulo gulo luscus in the southern Columbia Mountains, Canada |
title_sort |
mechanisms influencing the winter distribution of wolverine gulo gulo luscus in the southern columbia mountains, canada |
publisher |
Oikos Editorial Office |
publishDate |
2019 |
url |
https://arcabc.ca/islandora/object/sc%3A3996 https://doi.org/10.2981/wlb.00480 |
op_coverage |
Columbia Mountains (B.C.) British Columbia |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) ENVELOPE(-63.852,-63.852,-70.197,-70.197) |
geographic |
Canada British Columbia Columbia Mountains |
geographic_facet |
Canada British Columbia Columbia Mountains |
genre |
Alces alces Gulo gulo Rangifer tarandus |
genre_facet |
Alces alces Gulo gulo Rangifer tarandus |
op_relation |
Wildlife Biology https://arcabc.ca/islandora/object/sc%3A3996 sc:3996 doi:10.2981/wlb.00480 |
op_rights |
author |
op_doi |
https://doi.org/10.2981/wlb.00480 |
container_title |
Wildlife Biology |
container_volume |
2019 |
container_issue |
1 |
_version_ |
1800742615122968576 |