Three chapters are devoted to honey bees while six focus on other species namely the bumblebees, alkali bees, alfalfa leaf-cutting bees, mason bees and carpenter bees.
Asteraceae pollen was common in the pollen loads of both groups of bumblebees.
Food niche analyses of bumblebees: a comparison of three data collecting methods.
We were unable to follow bumblebees after they stopped foraging at a patch, because the insects would fly away swiftly and be lost from sight immediately.
Individual bumblebees showed no constancy in plant choice, judging from the high number of different pollen types (6-12) on their bodies.
Of these, 171 were made by marked workers and 50 by unmarked bumblebees.
Communities of bumblebees : testing the core-satellite species hypothesis.
Daily visitation rate multiplied by flower life span gives the expected number of bumblebee visits that a flower received in a lifetime.
