Queen execution in a monogynous ant

Jürgen Heinze & Julia Giehr
Workers in many species of social insects are capable of laying unfertilized eggs, which can develop into haploid males. This causes a conflict about male parentage between queens and workers. In a few species, this may result in matricide, i.e., workers kill the colony’s queen. Queen killing has so far been observed mainly in multi-queen colonies or in annual species, when the queen’s fecundity declines at the end of the reproductive period. Here, we report...
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