Use of a Motorway Wildlife Bridge (Overpass) by Large Animals
Netherlands Journal of Zoology, 1 January 2001, vol. 51, no. 1, pp. 97-105(9)
studied how mammals used a wildlife overpass across a motorway in
central Netherlands using track counts in 1989, 1994 and 1995.
Throughout the study the overpass was used most frequently by red
deer and wild boar and,
less often, by roe deer, red fox, fallow deer, Highland
cattle, and badger. For red deer and wild boar
the highest incidence of use was in autumn/early winter, correlating
with the rutting season. Small mammals caught on the overpass were
wood mouse, common vole and common shrew. The wildlife
overpasses can be an effective means of connecting habitats for a
wide range of mammals but the effectiveness is related to the width
of the overpass.
For large mammals a minimum width of 40-50 meters
HABITAT FRAGMENTATION; MAMMALS; WILDLIFE OVERPASS