Abstract
For the purpose of predicting the infest of the Asiatic black bear, Ishikawa Prefectural Government conducted the survey for the prospective yield of the masts of the three Fagaceae species. The survey has been entrusted to the Ishikawa Nature Guide Association, which is a volunteers association for guide service of nature. As a result of questionnaire, most of the members who participated in the investigation answered that they were able to get a greater understanding about the relation between beechnut production and bear infest. And it became clear that this experience was also helpful to improve their normal activities of nature interpretation. Thus, to involve nature guides in such investigation activities is considered to contribute to promote the proper knowledge of bear infest issue to the public secondarily. In addition, when it entrusts a volunteer group, it is important to adopt not only the technical methods to conduct easily the investigation and open the workshop for investigations, but also to choose the investigation sites with an expert.
