抄録
An information survey was conducted through interviews with 21 households that have been feeding Nyctereutes procyonoides viverrinus, and a questionnaire of 1542 students of elementary and junior high school and their parents in Hachioji. Results suggest that the reproductive cycle of N. procyonoides viverrinus in Hachioji has the following pattern. The etrus and mating season runs from about December through March peaking around February, with their delivery season running from around February through May and peaking around April. They break up and disperse starting from August peaking around October. Further，young from the previous year were observed participating in caring for new born baby.
Both the inquiry survey and questionnaire indicated the presence of individuals with epilation. Several characteristics such as hair loss all over the body, swelling and thickening of the epidermis, and frequent scratching were observed in these individuals. They were presumed to have scabies or mange. Individuals exhibiting epilation were first confirmed around August of 1988 and appeared at all the households by June of 1990.
Since August of 1990, few individuals have been observed at these households nor have
there been any reported observations of these animals.
