Abstract
During 1994-96, studies on the home range, the habitat preference and the activity rhythm of red fox, Vulpes vulpes, using the radiotelemetry were performed at the subalpine belt in Central Japan. Three female foxes were studied, one of which was in a suckling cycle. The sizes of the home range were calculated by the use of the harmonic mean and two other methods. The sizes calculated by the 95% harmonic mean ranged from 178.0 to 2731.1 ha. The home range size remarkably varied in course of a breeding cycle. As for a studied breeding female there was observed a remarkably reduction in the home range size and also an increase in the daytime activity during her suckling period. The studied fox tended to select a certain environment for their habitat. Most of the time, they preferred grassland, while avoided Japanese larch plantation.
