Regulation of reproduction by dominant workers in bumblebee (Bombus terrestris) queenright colonies

@article{Bloch1999RegulationOR,
  title={Regulation of reproduction by dominant workers in bumblebee (Bombus terrestris) queenright colonies},
  author={Guy Bloch and Abraham Hefetz},
  journal={Behavioral Ecology and Sociobiology},
  year={1999},
  volume={45},
  pages={125-135}
}
  • G. Bloch, A. Hefetz
  • Published 18 February 1999
  • Biology
  • Behavioral Ecology and Sociobiology
Abstract The mechanisms of regulating worker reproduction in bumblebees were studied by direct behavioral observations and by measuring ovarian development and juvenile hormone (JH) biosynthesis rates in workers under different social conditions. Workers in the last stage of Bombus terrestris colony development (the competition phase) had the lowest ovarian development and JH biosynthesis rates. Callows introduced into colonies immediately after queen removal (dequeened colonies) demonstrated a… 
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  • G. Bloch
  • Biology
    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 1999
TLDR
Findings show that the mechanism underlying the queen–worker conflict in insect societies is more complex than previously appreciated and multiple cues are important.
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TLDR
It is demonstrated here that the volatile constituents of the secretion exhibit a context-dependent composition, and hypothesize that by producing a sterility-specific secretion, workers signal that ‘I am out of the competition’, and therefore are not attacked, either by the queen or by the reproductive workers.
The Relationship of Weight and Ovarian Development in Bombus terrestris L. Workers under Different Social Conditions
TLDR
The observations indicate that the presence of a queen does not inhibit the ovarian development of workers, and there was a positive correlation between the weight and the ovarian developmental status of workers in groups containing 8 workers.
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References

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TLDR
It is found that queenless workers had significantly more developed ovaries and higher rates of release of JH than did queenright workers, confirming and extending previous findings that suggest that bumblebee ovarian development is under JH control.
Development and reproductive strategies in Bombus terrestris colonies
TLDR
The development and the reproductive output of 26 Bombus terrestris colonies were investigated and the loss of dominance by the queen was expressed by the beginning of aggression on the part of queen and workers, worker oviposition, oophagy and the functional elimination of the queen.
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TLDR
In the eight colonies that were investigated it was found that the queen switched from laying fertilized eggs to laying unfertilized eggs within a short period, and the interests of diploid brood were not affected by the worker-queen conflict in the colonies.
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  • Biology
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TLDR
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TLDR
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