van Gelder J J
Dept. of Animal Ecology, Catholic University, Toernooiveld, Nijmegen, The Netherlands.
Oecologia. 1973 Mar;13(1):93-95. doi: 10.1007/BF00379622.
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.
1971年,在Bufo bufo的繁殖洄游期间,统计了雌性蟾蜍的数量,这些雌性蟾蜍在一条每小时约有10辆车通行的柏油路上被车辆撞死。通过统计卵带数量也估算出了雌性蟾蜍的总数。通过比较这两组数据发现,路过这条路的雌性蟾蜍中有30%被碾压。预计雄性蟾蜍的情况类似。