Reproductive physiology mediates honey bee (Apis mellifera) worker responses to social cues

David A. Galbraith, Ying Wang, Gro V. Amdam, Robert E. Page, Christina M. Grozinger

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Though social insect colonies are often considered to be models of cooperative behavior, there can be conflict between queens and their workers over reproduction. In honey bees (Apis mellifera), the queen releases a pheromone that attracts workers and inhibits worker ovary activation such that they remain sterile and rear the offspring of the queen. Furthermore, under queenless conditions, workers can rear new queens from the old queen’s eggs or activate their ovaries and lay their own eggs. Workers vary greatly in their ability to activate their ovaries, and this variation is positively correlated with ovary size. Here, we demonstrate that, compared to their sisters, workers with the larger ovaries are less attracted to queen pheromone, less likely to rear new queens if the old queen is lost, and more likely to activate their ovaries in the absence of a queen. Furthermore, surgically increasing a bee’s ovarian mass reduces her attraction to queen pheromone. The additional ovarian mass altered brain expression levels of the octopamine receptor, Oa1, but these differences did not correlate with response to queen pheromone. Overall, these results indicate that honey bee workers’ response to social cues under both queenright and queenless contexts is modified by their reproductive physiology, such that workers with greater ovary activation rates are less likely to engage in behaviors that promote the queen’s reproduction.

Original languageEnglish (US)
Pages (from-to)1511-1518
Number of pages8
JournalBehavioral Ecology and Sociobiology
Volume69
Issue number9
DOIs
StatePublished - Sep 18 2015

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animal reproduction
honey
queen insects
Apis mellifera
bee
honey bees
physiology
queen pheromones
pheromone
octopamine
insect colonies
worker honey bees
social insects
egg
cooperative behavior
pheromones
cooperatives
social insect
Apoidea
brain

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

Cite this

Galbraith, David A. ; Wang, Ying ; Amdam, Gro V. ; Page, Robert E. ; Grozinger, Christina M. / Reproductive physiology mediates honey bee (Apis mellifera) worker responses to social cues. In: Behavioral Ecology and Sociobiology. 2015 ; Vol. 69, No. 9. pp. 1511-1518.
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Reproductive physiology mediates honey bee (Apis mellifera) worker responses to social cues. / Galbraith, David A.; Wang, Ying; Amdam, Gro V.; Page, Robert E.; Grozinger, Christina M.

In: Behavioral Ecology and Sociobiology, Vol. 69, No. 9, 18.09.2015, p. 1511-1518.

Research output: Contribution to journalArticle

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