During my PhD I want to examine how various aspects of
sexual selection have driven the evolution of exaggerated eyespan in
stalk-eyed flies. Fertility in this species is very low, and so females
may select males based on their ability to maintain her fertility. As
a result, I am currently looking at two male sexual traits that are
likely to be linked to female fertility: sperm quality (through live/dead
staining) and accessory gland development.
Harley, E., Fowler, K., & Cotton, S. (2010).
No detectable fertility benefit from a single additional mating in wild
stalk-eyed flies. PLoS One 5 (12).