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UBC Theses and Dissertations
Permeability of the Trans-Canada highway to Black Bear movements in the Bow River Valley of Banff National Park Serrouya, Robert
Abstract
I compared the effects of four parallel linear features on black bear (Ursus americanus) movements in the Bow River valley of Banff National Park. Three linear features were transportation routes (in decreasing order of vehicle-traffic volume: Trans- Canada highway, 1A scenic highway, Canadian Pacific railway [CPR]), and the fourth was the Bow River, a natural linear feature. Radio-fitted bears were monitored over two sampling periods (six bears in 1987-88 and 13 bears in 1996-97), during which time vehicle traffic increased by 13-24%. I compared bear movements to a spatial simulation to determine if bears crossed the linear features less than what would be expected by random chance. There was an inverse relationship between the permeability of linear features and traffic volumes of those features. On an individual basis, 37% of the bears crossed the Trans-Canada less than what would be expected by random chance, compared to 13%, 16%, and 11% for the 1A, CPR, and Bow River, respectively. When the two sampling periods were compared, CPR permeability was significantly higher in 1996-97. For female bears, age or experience was a better indicator of Trans-Canada permeability than habitat. Learning to use wildlife crossing structures appeared to play an important role in determining the success of Trans-Canada crossings. I recommend using techniques that encourage bears to learn to use wildlife crossing structures, which will have the dual effect of maintaining permeability and reducing vehicle-wildlife collisions.
Item Metadata
Title |
Permeability of the Trans-Canada highway to Black Bear movements in the Bow River Valley of Banff National Park
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1999
|
Description |
I compared the effects of four parallel linear features on black bear (Ursus
americanus) movements in the Bow River valley of Banff National Park. Three linear
features were transportation routes (in decreasing order of vehicle-traffic volume: Trans-
Canada highway, 1A scenic highway, Canadian Pacific railway [CPR]), and the fourth
was the Bow River, a natural linear feature. Radio-fitted bears were monitored over two
sampling periods (six bears in 1987-88 and 13 bears in 1996-97), during which time
vehicle traffic increased by 13-24%. I compared bear movements to a spatial simulation
to determine if bears crossed the linear features less than what would be expected by
random chance. There was an inverse relationship between the permeability of linear
features and traffic volumes of those features. On an individual basis, 37% of the bears
crossed the Trans-Canada less than what would be expected by random chance,
compared to 13%, 16%, and 11% for the 1A, CPR, and Bow River, respectively. When
the two sampling periods were compared, CPR permeability was significantly higher in
1996-97. For female bears, age or experience was a better indicator of Trans-Canada
permeability than habitat. Learning to use wildlife crossing structures appeared to play
an important role in determining the success of Trans-Canada crossings. I recommend
using techniques that encourage bears to learn to use wildlife crossing structures, which
will have the dual effect of maintaining permeability and reducing vehicle-wildlife
collisions.
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Extent |
3977689 bytes
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Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2009-06-27
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0089193
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
1999-11
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.