Biometrical and ecological data from a Netherlands population of Anguis fragilis (Reptilia, Sauria, Anguidae)

Abstract

Slow worms (Anguis fragilis) were caught, measured, marked and released over a period of three years. A number of them was recaptured. In this way information was gathered about biometry, tail loss, above-ground presence, movements, and habitat selection. Animals were present above ground in the daytime. Most captures were made during the mid-afternoon hours in August, mainly of females. The Slow worms showed a high site tenacity. They prefer certain vegetation types in the forest area.