title: A quantitative approach to the mortality resulting from traffic in a population of Bufo bufo L.
abstract: During the breeding migration of Bufo bufo in 1971 the number of females was counted, killed by traffic on an asphalt road with about 10 cars/hour. By counting egg-strings the total number of females was estimated too. By comparing both data it appeared that 30% of the females passing the road were run over. For the males a similar percentage is expected.
authors.affiliation: Dept. of Animal Ecology, Catholic University, Toernooiveld, Nijmegen, The Netherlands.
authors.forename: J J
authors.initials: JJ
authors.lastname: van Gelder