Colour-marking in experiments on food selection with Collembola

摘要

A laboratory method was developed for colour-marking different food types ingested by several slightly pigmented or unpigmented species of Collembola. After feeding Collembola on food marked with food-colouring, the gut contents of the animals appeared coloured. Thus, it was possible to accurately relate the tested animals to the differently stained types of food, irrespective of the location of the animals at the moment of observation.