Abstract
The workers’ sting extension in response to noxious stimulations is a common test used to study physiological modulations of behaviour in the honey bee. In this study, we investigated the variation of the sting extension response between honey bee workers from different patrilines in a colony with a naturally mated queen. We found that the sting extension response varied according to patrilines, indicating a genetic contribution to the intra-colonial variation of this behaviour. Patrilines differed in their responses during successive stimulations applied at a constant level: bees belonging to some patrilines exhibited a constant level of response during repeated stimulations, while others showed a decreasing response under the same conditions. These results fit well with the models of division of labour based on differences in response thresholds among workers of different subfamilies.
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