A comparison of elk‐vehicle collision patterns with demographic and abundance data in the Central Canadian Rocky Mountains

Abstract Wildlife‐vehicle collisions are a widespread phenomenon that are influenced by species behavior, abundance, and road and landscape interactions. The mortality rate of different age and sex classes can buffer or exacerbate how the population responds to vehicle collisions. We evaluated the d...

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Main Authors: Kari Elizabeth Gunson, Anthony Paul Clevenger, Adam Thomas Ford
Format: Article
Language:English
Published: Wiley 2022-12-01
Series:Conservation Science and Practice
Subjects:
Online Access:https://doi.org/10.1111/csp2.12842
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author Kari Elizabeth Gunson
Anthony Paul Clevenger
Adam Thomas Ford
author_facet Kari Elizabeth Gunson
Anthony Paul Clevenger
Adam Thomas Ford
author_sort Kari Elizabeth Gunson
collection DOAJ
description Abstract Wildlife‐vehicle collisions are a widespread phenomenon that are influenced by species behavior, abundance, and road and landscape interactions. The mortality rate of different age and sex classes can buffer or exacerbate how the population responds to vehicle collisions. We evaluated the demographic‐specific patterns of elk‐vehicle collisions in the Central Canadian Rocky Mountains. More females and adults were involved in collisions, but when compared to the sex and age of the population, males and subadults were more prone to collisions in the fall. The fat marrow content (condition) of elk was greater for road‐ and rail‐kill than predator‐killed elk indicating that vehicle collisions are an additive source of mortality. As traffic volumes increased elk collisions decreased because elk declined over the study period. Evaluation of long‐term datasets can assist in designing mitigation that target the most vulnerable demographics of a population. For example, larger more open wildlife crossing structures have shown to be more suitable for vulnerable demographics such as female grizzly bears, male ungulates, and female ungulates traveling with young. When crossing structures are not practical, demographic‐specific information can inform outreach and awareness programs that strive to elicit a favorable response from motorists ultimately avoiding collisions with animals on roads.
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spelling doaj.art-2f0f5c74edec4b20b032d3bcc82c68102022-12-22T03:48:14ZengWileyConservation Science and Practice2578-48542022-12-01412n/an/a10.1111/csp2.12842A comparison of elk‐vehicle collision patterns with demographic and abundance data in the Central Canadian Rocky MountainsKari Elizabeth Gunson0Anthony Paul Clevenger1Adam Thomas Ford2Eco‐Kare International Peterborough Ontario CanadaWestern Transportation Institute Bozeman MT USAThe University of British Columbia Vancouver BC CanadaAbstract Wildlife‐vehicle collisions are a widespread phenomenon that are influenced by species behavior, abundance, and road and landscape interactions. The mortality rate of different age and sex classes can buffer or exacerbate how the population responds to vehicle collisions. We evaluated the demographic‐specific patterns of elk‐vehicle collisions in the Central Canadian Rocky Mountains. More females and adults were involved in collisions, but when compared to the sex and age of the population, males and subadults were more prone to collisions in the fall. The fat marrow content (condition) of elk was greater for road‐ and rail‐kill than predator‐killed elk indicating that vehicle collisions are an additive source of mortality. As traffic volumes increased elk collisions decreased because elk declined over the study period. Evaluation of long‐term datasets can assist in designing mitigation that target the most vulnerable demographics of a population. For example, larger more open wildlife crossing structures have shown to be more suitable for vulnerable demographics such as female grizzly bears, male ungulates, and female ungulates traveling with young. When crossing structures are not practical, demographic‐specific information can inform outreach and awareness programs that strive to elicit a favorable response from motorists ultimately avoiding collisions with animals on roads.https://doi.org/10.1111/csp2.12842abundanceageconditiondemographicelk‐vehicle collisionsRocky Mountains
spellingShingle Kari Elizabeth Gunson
Anthony Paul Clevenger
Adam Thomas Ford
A comparison of elk‐vehicle collision patterns with demographic and abundance data in the Central Canadian Rocky Mountains
Conservation Science and Practice
abundance
age
condition
demographic
elk‐vehicle collisions
Rocky Mountains
title A comparison of elk‐vehicle collision patterns with demographic and abundance data in the Central Canadian Rocky Mountains
title_full A comparison of elk‐vehicle collision patterns with demographic and abundance data in the Central Canadian Rocky Mountains
title_fullStr A comparison of elk‐vehicle collision patterns with demographic and abundance data in the Central Canadian Rocky Mountains
title_full_unstemmed A comparison of elk‐vehicle collision patterns with demographic and abundance data in the Central Canadian Rocky Mountains
title_short A comparison of elk‐vehicle collision patterns with demographic and abundance data in the Central Canadian Rocky Mountains
title_sort comparison of elk vehicle collision patterns with demographic and abundance data in the central canadian rocky mountains
topic abundance
age
condition
demographic
elk‐vehicle collisions
Rocky Mountains
url https://doi.org/10.1111/csp2.12842
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