Road visibility influences habitat selection by grizzly bears ( Ursus arctos horribilis)
Anthropogenic disturbances, including roads, are known to influence animal habitat selection and mortality. In this study, we consider the role of sensory perception in understanding why and how animals respond to disturbances. Our goal was to investigate the effect of visual perception (visibility)...
Published in: | Canadian Journal of Zoology |
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Online Access: | http://dx.doi.org/10.1139/cjz-2020-0125 https://cdnsciencepub.com/doi/full-xml/10.1139/cjz-2020-0125 https://cdnsciencepub.com/doi/pdf/10.1139/cjz-2020-0125 |
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crcansciencepubl:10.1139/cjz-2020-0125 2024-10-13T14:11:14+00:00 Road visibility influences habitat selection by grizzly bears ( Ursus arctos horribilis) Parsons, B.M. Coops, N.C. Kearney, S.P. Burton, A.C. Nelson, T.A. Stenhouse, G.B. 2021 http://dx.doi.org/10.1139/cjz-2020-0125 https://cdnsciencepub.com/doi/full-xml/10.1139/cjz-2020-0125 https://cdnsciencepub.com/doi/pdf/10.1139/cjz-2020-0125 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 99, issue 3, page 161-171 ISSN 0008-4301 1480-3283 journal-article 2021 crcansciencepubl https://doi.org/10.1139/cjz-2020-0125 2024-09-27T04:07:25Z Anthropogenic disturbances, including roads, are known to influence animal habitat selection and mortality. In this study, we consider the role of sensory perception in understanding why and how animals respond to disturbances. Our goal was to investigate the effect of visual perception (visibility) around roads on grizzly bear (Ursus arctos horribilis Ord, 1815) habitat selection and mortality in Alberta, Canada. We used detailed topographic and vegetation data from airborne light detection and ranging (lidar) to estimate visibility around roads. We modelled habitat selection as a function of road visibility and environmental variables using GPS telemetry data from 39 grizzly bears and integrated step selection analysis (iSSA). Finally, we assessed mortality risk in visible areas by comparing habitat selection between grizzly bears that died and those that survived. We found that grizzly bears were less likely to select visible areas when moving slowly or resting, but were more likely to select visible areas when travelling. We found that grizzly bears that survived selected for areas farther from roads than grizzly bears that died. However, no difference in selection for visible areas was observed. An exploratory analysis showed that grizzly bear mortalities commonly occurred in visible areas. Our findings highlight the importance of sensory perception in understanding animal behaviour. Article in Journal/Newspaper Ursus arctos Canadian Science Publishing Canada Canadian Journal of Zoology 99 3 161 171 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Anthropogenic disturbances, including roads, are known to influence animal habitat selection and mortality. In this study, we consider the role of sensory perception in understanding why and how animals respond to disturbances. Our goal was to investigate the effect of visual perception (visibility) around roads on grizzly bear (Ursus arctos horribilis Ord, 1815) habitat selection and mortality in Alberta, Canada. We used detailed topographic and vegetation data from airborne light detection and ranging (lidar) to estimate visibility around roads. We modelled habitat selection as a function of road visibility and environmental variables using GPS telemetry data from 39 grizzly bears and integrated step selection analysis (iSSA). Finally, we assessed mortality risk in visible areas by comparing habitat selection between grizzly bears that died and those that survived. We found that grizzly bears were less likely to select visible areas when moving slowly or resting, but were more likely to select visible areas when travelling. We found that grizzly bears that survived selected for areas farther from roads than grizzly bears that died. However, no difference in selection for visible areas was observed. An exploratory analysis showed that grizzly bear mortalities commonly occurred in visible areas. Our findings highlight the importance of sensory perception in understanding animal behaviour. |
format |
Article in Journal/Newspaper |
author |
Parsons, B.M. Coops, N.C. Kearney, S.P. Burton, A.C. Nelson, T.A. Stenhouse, G.B. |
spellingShingle |
Parsons, B.M. Coops, N.C. Kearney, S.P. Burton, A.C. Nelson, T.A. Stenhouse, G.B. Road visibility influences habitat selection by grizzly bears ( Ursus arctos horribilis) |
author_facet |
Parsons, B.M. Coops, N.C. Kearney, S.P. Burton, A.C. Nelson, T.A. Stenhouse, G.B. |
author_sort |
Parsons, B.M. |
title |
Road visibility influences habitat selection by grizzly bears ( Ursus arctos horribilis) |
title_short |
Road visibility influences habitat selection by grizzly bears ( Ursus arctos horribilis) |
title_full |
Road visibility influences habitat selection by grizzly bears ( Ursus arctos horribilis) |
title_fullStr |
Road visibility influences habitat selection by grizzly bears ( Ursus arctos horribilis) |
title_full_unstemmed |
Road visibility influences habitat selection by grizzly bears ( Ursus arctos horribilis) |
title_sort |
road visibility influences habitat selection by grizzly bears ( ursus arctos horribilis) |
publisher |
Canadian Science Publishing |
publishDate |
2021 |
url |
http://dx.doi.org/10.1139/cjz-2020-0125 https://cdnsciencepub.com/doi/full-xml/10.1139/cjz-2020-0125 https://cdnsciencepub.com/doi/pdf/10.1139/cjz-2020-0125 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_source |
Canadian Journal of Zoology volume 99, issue 3, page 161-171 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjz-2020-0125 |
container_title |
Canadian Journal of Zoology |
container_volume |
99 |
container_issue |
3 |
container_start_page |
161 |
op_container_end_page |
171 |
_version_ |
1812818900585283584 |