Differences in mating propensities: some models for examining the genetic consequences

Several models of mating behavior are described. The rates at which matings occur are described by differential equations. When several types of males are present with several types of females, the rates are described by a system of such equations. Different modes of pair formation result in different equations, and differences in mating propensities result in different constants in the equations. Two types of pair formation are examined: promiscuous pair formation and permanent pair formation. these models are found satisfactory when tested against observations of mating in flour beetles and houseflies. Some ways in which different mating propensities may affect the genetic structure of populations are examined in the light of these models.