Born to be bee, fed to be worker? The caste system of a primitively eusocial insect
Open Access
- 1 January 2012
- journal article
- Published by Springer Science and Business Media LLC in Frontiers in Zoology
- Vol. 9 (1), 35
- https://doi.org/10.1186/1742-9994-9-35
Abstract
Primitively eusocial halictid bees are excellent systems to study the origin of eusociality, because all individuals have retained the ancestral ability to breed independently. In the sweat bee Halictus scabiosae, foundresses overwinter, establish nests and rear a first brood by mass-provisioning each offspring with pollen and nectar. The mothers may thus manipulate the phenotype of their offspring by restricting their food provisions. The first brood females generally help their mother to rear a second brood of males and gynes that become foundresses. However, the first brood females may also reproduce in their maternal or in other nests, or possibly enter early diapause. Here, we examined if the behavioural specialization of the first and second brood females was associated with between-brood differences in body size, energetic reserves and pollen provisions.Keywords
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