La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Do small mammals avoid roads because of the traffic?
Auteurs :	Rachelle L. McGregor, Auteur ; Darren J. Bender, Auteur ; Lenore Fahrig, Auteur
Type de document :	Article
Dans :	Journal of Applied Ecology (45(1) FEB 2008)
Article en page(s) :	117-123
Langues:	Anglais
Résumé :	1. Roads can act as barriers to animal movement, which may reduce population persistence by reducing recolonization of empty habitats and limiting immigration. Appropriate mitigation of this barrier effect (e.g. seasonal road closures, location and design of wildlife over- or underpasses) depends upon whether the animals avoid the road itself or the traffic on the road. Empirical studies of road avoidance to date do not generally differentiate between these. 2. We conducted short- and long-distance translocations and trapping studies of white-footed mice (Peromyscus leucopus) and eastern chipmunks (Tamias striatus) near two-lane paved roads, which differed widely in traffic amount, from 47 to 15 433 vehicles per day. 3. In the trapping study (13 sites) only five animals moved across a road, in comparison to 36 animals that moved the same distance without an intervening road (P

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