title: Acoustic Activity Recorder for Burrowing Animals.
abstract: The vibrations of animals digging in a dry or moist substratum may be picked up and recorded continuously by a microphone, amplifier, and recorder setup. The apparatus permits a large region, such as an activity cage, to be monitored without disturbance of the animals or special requirements for soil conditions.
authors.forename: C
authors.initials: C
authors.lastname: Gans
authors.forename: J J
authors.initials: JJ
authors.lastname: Bonin