Factors influencing brood sex ratios in polyembryonic Hymenoptera

  title={Factors influencing brood sex ratios in polyembryonic Hymenoptera},
  author={Ian C. W. Hardy and Paul J. Ode and Michael R Strand},
Copidosoma sp. is a polyembryonic encyrtid wasp which parasitizes isolated hosts. Most broods of this wasp are unisexual, but some contain both sexes and the secondary sex ratio of these is usually highly female biased. The overall population secondary sex ratio is female biased. Walter and Clarke (1992) argue that because the majority of individuals must mate outside the natal patch, the bias in the population secondary sex ratio contradicts predictions made by Hamilton's (1967) theory of… CONTINUE READING