Mace, Ruth; Eardley, Jennifer - In: Socioeconomic aspects of human behavioral ecology, (pp. 295-306). 2004
Sex ratio theory predicts that the net investment of parents in male and female offspring should be equal in a population. Thus, if the costs and/or benefits of raising one sex to maturity differ from the other sex, then the sex ratio may deviate from 50:50. If body size and/or condition are...