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The toll of the automobile

wildlife and roads in Sweden

Seiler, Andreas (2003). The toll of the automobile. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae. Silvestria, 1401-6230 ; 295
ISBN 91-576-6529-X
[Doctoral thesis]

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Animal-vehicle collisions are a common phenomenon worldwide, causing injury or death to millions of animals and hundreds of human passengers each year. Collision numbers can be significant to species conservation, wildlife management, traffic safety, as well as from an economic and political point of view, and should thus be evaluated from these different perspectives. In this thesis, I assess, evaluate, analyse and predict animal-vehicle collisions with respect to their extent, their effect on populations, and their broad and fine scale distribution. A questionnaire with Swedish drivers indicated that nationwide road traffic in 1992 may caused an annual loss in harvest of common game species of 7% to 97% and of 1% to 12% of estimated populations. Road mortality did not appear as an existential threat to most species, although in badgers (Meles meles), traffic probably is the largest single cause of death. A slow population growth rate coupled with a high proportion of adult badger road-kills is responsible for their sensitivity to road mortality. Provided that road mortality is additive, we predicted that losses due to nationwide traffic might already exceed birth rates and limit badger population growth. In roe deer (Capreolus capreolus) and moose (Alces alces), road mortality is of minor importance to the population. Broad-scale trends and patterns in collision numbers correlate with harvest and traffic volumes, thus providing a simple means to monitor the toll of road traffic. To predict local collision risks with these species, information on animal abundance and landscape composition, on road traffic parameters, and on the spatial coincidence of roads and landscape elements is needed. However, vehicle speed appeared as one of the most important factors determining collision risks with moose, underlining the influence of human factors on collision risks. Successful counteraction therefore requires an interdisciplinary approach that addresses both the animal and the driver in their shared environment.

Authors/Creators:Seiler, Andreas
Title:The toll of the automobile
Subtitle:wildlife and roads in Sweden
Series Name/Journal:Acta Universitatis Agriculturae Sueciae. Silvestria
Year of publishing :November 2003
Number of Pages:48
ALLI. Seiler, A., Helldin, J-O. & Seiler, Ch. Road mortality in Swedish mammals – Results of a drivers’ questionnaire. Wildlife Biology, in press. II. Seiler, A., Helldin, J-O. & Eckersten, T. Road mortality in Swedish Badgers (Meles meles): Effects on population. Manuscript. III. Seiler, A. Trends and spatial patterns in ungulate-vehicle collisions in Sweden. Wildlife Biology, in press. IV. Seiler, A. Spatial models to predict moose-vehicle collision in Sweden. Manuscript.
Place of Publication:Uppsala
ISBN for printed version:91-576-6529-X
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:P Natural resources > P01 Nature conservation and land resources
Subjects:Not in use, please see Agris categories
Agrovoc terms:vehicles, wildlife, fencing, infrastructure, roads, planning, mortality, safety, risk, sweden
Keywords:animal-vehicle collisions, fences, impact assessment, infrastructure, mitigation, road planning, traffic mortality, traffic safety
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ID Code:388
Deposited By: Andreas Seiler
Deposited On:24 Nov 2003 00:00
Metadata Last Modified:02 Dec 2014 10:04

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