Evolution of female choosiness and mating frequency: effects of mating cost, density and sex ratio

► Female mating strategies depend on mate quality and the number of mates. ► Mating costs and demographic parameters may influence these strategies. ► Density and sex ratio affect female choosiness but not the observed mating pattern. ► Mating cost has a strong effect influencing also the number of mates. ► Moreover, mating costs influence the intensity of selection on female choosiness.