The effects of experimental design on mating preferences and reproductive isolation in killifish

Abstract

Bluefin killifish mate preference is best detected using mating behaviors, such as the number of courting bouts or the number of eggs produced with a mate. Using these measurements, we found that female bluefin killifish that co-occur with a close evolutionary relative have stronger mate preferences for their own species than their male counterparts, and even show increased mate preference for individuals from their own population.