Table 1.

Number of individual bumble bee workers of each species (Bombus spp.) recorded during the study period (2012–2023) in the Kuro site and the Aka site

Bombus species	Kuro site	Aka site
B. hypocrita sapporoensis	2126 (13.6%)	2915 (40.2%)
B. beaticola moshkarareppu	5347 (34.1%)	2140 (29.5%)
B. yezoensis	7746 (49.5%)	1,440 (19.8%)
B. hypnorum koropokkrus	330 (2.1%)	760 (10.5%)
B. diversus tersatus	102 (< 0.01%)	4 (< 0.001%)
B. terrestris	10 (< 0.001%)	1 (< 0.001%)
Total	15,661	7260