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Updated: Jul 15, 2026

09:30
Measurement of Larval Activity in the Drosophila Activity Monitor
Published on: April 30, 2015
Use of iodine-131 to measure movements of small animals
Abstract:
A technique utilizing iodine-131 was developed to study the movements of Microtus pennsylvanicus in the field. Iodine-131 ((1/2) mc) was placed in a polyethylene capsule and inserted beneath the animal's skin. Movements of the animal were then followed for periods of up to 2 weeks by means of a Geiger-Müller counter attached to an aluminum pole.

