Format

Send to

Choose Destination
Curr Biol. 2012 Nov 6;22(21):2027-31. doi: 10.1016/j.cub.2012.08.021. Epub 2012 Sep 27.

Promiscuous honey bee queens increase colony productivity by suppressing worker selfishness.

Author information

1
Department of Biological Sciences, Wellesley College, Wellesley, MA 02481, USA. hmattila@wellesley.edu

Abstract

Queen monogamy is ancestral among bees, ants, and wasps (Order Hymenoptera), and the close relatedness that it generates within colonies is considered key for the evolution of eusociality in these lineages. Paradoxically, queens of several eusocial species are extremely promiscuous, a derived behavior that decreases relatedness among workers and fitness gained from rearing siblings but benefits queens by enhancing colony productivity and inducing workers to rear queens' sons instead of less related worker-derived males. Selection for promiscuity would be especially strong if productivity in a singly inseminated queen's colony declined because selfish workers invested in personal reproduction at the expense of performing tasks that contribute to colony productivity. We show in honey bees that workers' ovaries are more developed when queens are singly rather than multiply inseminated and that increasing ovary activation is coupled with reductions in task performance by workers and colony-wide rates of foraging and waggle-dance recruitment. Increased investment in reproductive physiology by selfish workers might result from greater incentive for them to favor worker-derived males or because low mating frequency signals a queen's diminished quality or future fecundity. Either possibility fosters selection for queen promiscuity, revealing a novel benefit of it for eusocial insects.

PMID:
23022065
DOI:
10.1016/j.cub.2012.08.021
[Indexed for MEDLINE]
Free full text

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center