| Definition | Initiation numbers on bee specimens | Sampling places: university campus (UC) or botanic garden (BG) | Sampling year | Family names of the bee species | Species names of the bees | Bee sex (male or female) | Sampling date: month_day | One-hour sampling period within a day. Bees were sampled weekly for 4 or rarely 5 hours each week, and these hourly samplings are indicated as A, B, C, D and E. B2 complemented B1 for one-hour sampling. | Name of the flowers that the bees were visiting |