Home range, population structure and density estimates at removal catches with edge effect

Abstract

By a simple formula the distance and area is calculated, from which small mamals are drawn to a trap grid with edge effect. This range estimate will increase during successive removal days but a certain plateau in this value will be equal to the mean home range radius. Structure parameters should be evaluated from animals removed until this plateau. From examinations of the catches in a Standard-Minimum grid it is suggested that there should be a shorter distance between trap stations, a longer trapping period and possibly more traps in the outer belts. Since