Male crickets increase sperm number in relation to competition and female size

@article{Gage1996MaleCI,
  title={Male crickets increase sperm number in relation to competition and female size},
  author={Alex R. Gage and Christopher J. Barnard},
  journal={Behavioral Ecology and Sociobiology},
  year={1996},
  volume={38},
  pages={349-353}
}
Abstract There is evidence to suggest that males of various species can respond to the threat of sperm competition by varying the amount of sperm transferred during copulation. We tested this in two species of cricket, Acheta domesticus and Gryllodes supplicans (Orthoptera: Gryllidae) by varying the apparent threat of intermale competition experimentally. The results showed that males of both species increased the amount of sperm transferred as apparent competition increased and that male A… 
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Highly Influential Citations
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Background Citations
103
Methods Citations
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Results Citations
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212 Citations

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    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 1997
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Results indicate that male freshwater crayfish can modulate their sperm expenditure in accordance with cues that indicate female fecundity, and a novel finding is the decrease in sperm expenditure with male body size, which may suggest that large, old male cray fish are better able than small males to economise sperm at a given mating to perform multiple matings during a reproductive season.
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