Biomechanical determinants of bite force dimorphism in Cyclommatus metallifer stag beetles.

@article{Goyens2014BiomechanicalDO,
  title={Biomechanical determinants of bite force dimorphism in Cyclommatus metallifer stag beetles.},
  author={Jana Goyens and Joris J. Dirckx and Manuel Dierick and Luc Van Hoorebeke and Peter Aerts},
  journal={The Journal of experimental biology},
  year={2014},
  volume={217 Pt 7},
  pages={1065-71}
}
In the stag beetle family (Lucanidae), males have diverged from females by sexual selection. The males fight each other for mating opportunities with their enlarged mandibles. It is known that owners of larger fighting apparatuses are favoured to win the male-male fights, but it was unclear whether male stag beetles also need to produce high bite forces while grabbing and lifting opponents in fights. We show that male Cyclommatus metallifer stag beetles bite three times as forcefully as females… CONTINUE READING
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