Trappability of trap-prone and trap-shy bank voles

Abstract

Fifteen individuals exhibiting maximum trappability were chosen from a population of Clethrionomys glareolus inhabiting a 4-ha island in a lake. Rodents were caught in the home range of these individuals on one permanent trapping site and alternately on a trapping place situated at random in a different place each time. It was found that both trap-prone and trap-shy individuals are more frequently caught on permanent trapping sites than places chosen at random. Trap-shy individuals are caught more rarely than trap-prone rodents and the percentage of trap-prone individuals being greater in captures on permanent sites.