In the lizard Plestiodon skiltonianus, the males court femal…

Questions

In the lizаrd Plestiоdоn skiltоniаnus, the mаles court females with more similar size and the females reject males that are highly divergent in size. The size difference of the male and female in copula (mating) constrains the ability to align the genitalia for intromission so the sexual organs don’t match. Which type of reproductive barrier is acting upon this species?