A versatile timer for field studies in animal ecology

Ecological field studies frequently require that events be timed automatically, but it has proven difficult in the past to achieve this cheaply yet with accuracy and reliability. We describe here a versatile, accurate timer developed initially to time the capture of brushtail possums (Trichosurus vulpecula) entering cage traps. It reads to the nearest five minutes, can be interrogated in seconds, and the components cost less than US$4. It is capable of wide adaptations, and its use does not interfere with either the animals or the habitat. (NJT)

Author C. A. Jenness and G. A. Ward
Year 1985
Secondary title Journal of Wildlife Management
Volume 49
Number 4
Pages 1025-1028