Juvenile immune status affects the expression of a sexually selected trait in field crickets.

@article{Jacot2005JuvenileIS,
  title={Juvenile immune status affects the expression of a sexually selected trait in field crickets.},
  author={Alain Jacot and Hannes Scheuber and Joachim Kurtz and Martin W. G. Brinkhof},
  journal={Journal of evolutionary biology},
  year={2005},
  volume={18 4},
  pages={
          1060-8
        }
}
Parasite-mediated sexual selection theory presumes that variation in sexual traits reliably reflects variation in parasite resistance among available mates. One mechanism that may warrant signal honesty involves costs of immune system activation in the case of a parasitic infection. We investigated this hypothesis in male field crickets Gryllus campestris, whose attractiveness to females depends on characteristics of the sound-producing harp that are essentially fixed following adult eclosion… CONTINUE READING

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