In this study, the author surveyed the fauna of bumblebees at Kaoryanse park in Kitami-shi from 12nd May to 12nd November 2014 (total 31 days). The author observed Bombus terrestris (L.), that the introduced bumblebees, and B. hypocrita sapporoensis (Cockerell), B. deuteronymus deuteronymus (Schulz), and B. yezoensis Matsumura, that the indigenous at the surveyed area. The total numbers and distribution ratios of observed bumblebees were 384; 74.5%, 88; 17.1%, 36; 7.0% and 7; 1.4%, collectively. B. terrestris was observed all study periods, however the indigenous bumblebees were not obserbed until latter September to first October. Since the numerous observed numbers and the length of observed periods, B. terrestris is considered the dominant bumblebee species at this study site. It is needed to continue the survey of the fauna of bumblebees, and the monitoring the relationship between introduced and indigenous bumblebees in this area.
- Publication date
- 1 October 2015
- Publisher
- 日本赤十字北海道看護大学