, Volume 13, Issue 1, pp 93–95 | Cite as

A quantitative approach to the mortality resulting from traffic in a population of Bufo bufo L.

  • J. J. van Gelder
Short Communications


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.


Migration Asphalt Quantitative Approach Similar Percentage Asphalt Road 
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Copyright information

© Springer-Verlag 1973

Authors and Affiliations

  • J. J. van Gelder
    • 1
  1. 1.Dept. of Animal EcologyCatholic UniversityNijmegenThe Netherlands

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