Sperm Displacement without Sperm Transfer in Drosophila Melanogaster.

  title={Sperm Displacement without Sperm Transfer in Drosophila Melanogaster.},
  author={Lawrence G. Harshman and Timothy Prout},
  journal={Evolution; international journal of organic evolution},
  volume={48 3},
In this paper we show that when Drosophila melanogaster females are mated twice, the semen of the second male causes a reduction of the effective number of resident sperm from the previous mating. This is demonstrated by two different kinds of experiments. In one set of experiments, mated females were remated to two different kinds of sterile males, one with normal semen and the other with deficient semen. The effect on the resident sperm was determined from the number of remaining progeny… CONTINUE READING

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