Moya-Laraño, Jordi; Fox, Charles W. - In: Behavioral Ecology 17 (2006) 6, pp. 940-946
Several hypotheses have been proposed to explain the evolution of polyandry in species that provide nuptial gifts. When nuptial gifts are in the form of nutritional elements in the ejaculate and ejaculate size is correlated with male body size, females can accrue both direct (nutritional) and...