A Seven-Year Longitudinal Study on the Food Habits of the Asiatic Black Bear (Ursus thibetanus) in Relation to Mast Production in Shirakawa Village, Gifu Prefecture, Japan Mori, Tomoki and Sugiura, Rina and Kato, Makoto and Kato, Haruki and Niizuma, Yasuaki, Mammal Study, 43, 81-90 (2018), DOI:http://dx.doi.org/10.3106/ms2017-0034