Quantitative genetic evidence that males trade attractiveness for ejaculate quality in guppies.

  title={Quantitative genetic evidence that males trade attractiveness for ejaculate quality in guppies.},
  author={Jonathan P. Evans},
  journal={Proceedings. Biological sciences},
  volume={277 1697},
Polyandry, where females mate with multiple males, means that a male's reproductive success will depend both on his ability to acquire mates and the ability of his sperm to compete effectively for fertilizations. But, how do males partition their reproductive investment between these two episodes of selection? Theory predicts that increases in ejaculate investment will come at a cost to investment in other reproductive traits. Although evidence revealing such trade-offs is accumulating, we know… CONTINUE READING
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