Grizzly bear ( Ursus arctos ) movements and habitat use predict human-caused mortality across temporal scales
While the location of wildlife mortalities provides some insight on the cause of death, identifying the risk factors associated with mortality events and in which cases these factors result in death requires information on individual behaviour prior to death. With access to a long-term database of g...
Published in: | Canadian Journal of Zoology |
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Language: | English |
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2023
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Online Access: | http://dx.doi.org/10.1139/cjz-2022-0054 https://cdnsciencepub.com/doi/full-xml/10.1139/cjz-2022-0054 https://cdnsciencepub.com/doi/pdf/10.1139/cjz-2022-0054 |
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crcansciencepubl:10.1139/cjz-2022-0054 2023-12-17T10:51:18+01:00 Grizzly bear ( Ursus arctos ) movements and habitat use predict human-caused mortality across temporal scales Parsons, Bethany Wilson, Abbey E. Graham, Karen Stenhouse, Gordon B. 2023 http://dx.doi.org/10.1139/cjz-2022-0054 https://cdnsciencepub.com/doi/full-xml/10.1139/cjz-2022-0054 https://cdnsciencepub.com/doi/pdf/10.1139/cjz-2022-0054 en eng Canadian Science Publishing https://creativecommons.org/licenses/by/4.0/deed.en_GB Canadian Journal of Zoology volume 101, issue 2, page 81-94 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2023 crcansciencepubl https://doi.org/10.1139/cjz-2022-0054 2023-11-19T13:39:02Z While the location of wildlife mortalities provides some insight on the cause of death, identifying the risk factors associated with mortality events and in which cases these factors result in death requires information on individual behaviour prior to death. With access to a long-term database of grizzly bear ( Ursus arctos L., 1758) GPS locations, we investigated how behaviour differed between individuals that died of anthropogenic causes and those that survived across different temporal scales. We analyzed movement (diurnality and daily displacement) and habitat use (modelled risk and habitat quality) of grizzly bears residing in Alberta, Canada, from 2005 to 2021 to determine whether grizzly bears that died and grizzly bears that survived differed in these behaviours 2–4 years, 1 year, and 1 week prior to death, and whether patterns changed over time. We found that diurnality increased in the last year of life, while displacement increased in the last week of life, with differences becoming greater nearer the day of death. Grizzly bears that died used high-risk and low-quality habitat at all time scales, and these behaviours increased as death approached. Our analysis suggests that grizzly bear mortalities do not occur randomly but happen at times when individuals exhibit high-risk behaviours. This information can be used to make management decisions related to habitat management, road use, and human access. Article in Journal/Newspaper Ursus arctos Canadian Science Publishing (via Crossref) Canada Canadian Journal of Zoology 101 2 81 94 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Parsons, Bethany Wilson, Abbey E. Graham, Karen Stenhouse, Gordon B. Grizzly bear ( Ursus arctos ) movements and habitat use predict human-caused mortality across temporal scales |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
While the location of wildlife mortalities provides some insight on the cause of death, identifying the risk factors associated with mortality events and in which cases these factors result in death requires information on individual behaviour prior to death. With access to a long-term database of grizzly bear ( Ursus arctos L., 1758) GPS locations, we investigated how behaviour differed between individuals that died of anthropogenic causes and those that survived across different temporal scales. We analyzed movement (diurnality and daily displacement) and habitat use (modelled risk and habitat quality) of grizzly bears residing in Alberta, Canada, from 2005 to 2021 to determine whether grizzly bears that died and grizzly bears that survived differed in these behaviours 2–4 years, 1 year, and 1 week prior to death, and whether patterns changed over time. We found that diurnality increased in the last year of life, while displacement increased in the last week of life, with differences becoming greater nearer the day of death. Grizzly bears that died used high-risk and low-quality habitat at all time scales, and these behaviours increased as death approached. Our analysis suggests that grizzly bear mortalities do not occur randomly but happen at times when individuals exhibit high-risk behaviours. This information can be used to make management decisions related to habitat management, road use, and human access. |
format |
Article in Journal/Newspaper |
author |
Parsons, Bethany Wilson, Abbey E. Graham, Karen Stenhouse, Gordon B. |
author_facet |
Parsons, Bethany Wilson, Abbey E. Graham, Karen Stenhouse, Gordon B. |
author_sort |
Parsons, Bethany |
title |
Grizzly bear ( Ursus arctos ) movements and habitat use predict human-caused mortality across temporal scales |
title_short |
Grizzly bear ( Ursus arctos ) movements and habitat use predict human-caused mortality across temporal scales |
title_full |
Grizzly bear ( Ursus arctos ) movements and habitat use predict human-caused mortality across temporal scales |
title_fullStr |
Grizzly bear ( Ursus arctos ) movements and habitat use predict human-caused mortality across temporal scales |
title_full_unstemmed |
Grizzly bear ( Ursus arctos ) movements and habitat use predict human-caused mortality across temporal scales |
title_sort |
grizzly bear ( ursus arctos ) movements and habitat use predict human-caused mortality across temporal scales |
publisher |
Canadian Science Publishing |
publishDate |
2023 |
url |
http://dx.doi.org/10.1139/cjz-2022-0054 https://cdnsciencepub.com/doi/full-xml/10.1139/cjz-2022-0054 https://cdnsciencepub.com/doi/pdf/10.1139/cjz-2022-0054 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_source |
Canadian Journal of Zoology volume 101, issue 2, page 81-94 ISSN 0008-4301 1480-3283 |
op_rights |
https://creativecommons.org/licenses/by/4.0/deed.en_GB |
op_doi |
https://doi.org/10.1139/cjz-2022-0054 |
container_title |
Canadian Journal of Zoology |
container_volume |
101 |
container_issue |
2 |
container_start_page |
81 |
op_container_end_page |
94 |
_version_ |
1785576518592757760 |