期刊
APIDOLOGIE
卷 52, 期 5, 页码 887-898出版社
SPRINGER FRANCE
DOI: 10.1007/s13592-021-00867-5
关键词
Bombus; bumble bee; body size; foraging behavior; commercial propagation; domestication
类别
资金
- Tufts University
- Tufts Summer Scholars program
- NSF [DEB 13-54224]
The commercial rearing of bumble bees has led to differences in foraging behavior and size compared to wild bumble bees. Wild bumble bees prefer to return to colonies with purer pollen loads and are more likely to bring back pollen compared to commercial counterparts. Additionally, commercial bumble bees are smaller in size than wild bumble bees.
Bumble bees (Bombus spp.) have been commercially propagated for over three decades. As the environmental conditions experienced by commercial bumble bees differ greatly from those experienced by wild bumble bees, commercial rearing of bumble bees may cause phenotypic changes. Here, we compare the foraging behavior and size of worker bumble bees (Bombus impatiens) from commercial and wild colonies. For this experiment, we measured worker body size, recorded if the workers returned with pollen, and examined the contents of pollen loads via microscopy. We found that, while commercial and wild bumble bees foraged on similar communities of flowers, wild bumble bees returned to colonies with purer pollen baskets (higher proportion of the most common species) and were more likely to return to the colony with pollen than their commercial counterparts. Commercial bumble bees were also smaller than wild bees. Our work highlights differences between commercial and wild bumble bees, in addition to raising important unanswered questions about the mechanism and drivers of these differences.
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