I have been studying many aspects of wing shape evolution by sexual (sexual displays, territorial maintenance, mating success) and natural selection (predation, survival, habitat conditions). Recently, I showed that sexual (mating success) and natural selection (survival) can act antagonistically in wing shape, but agonistically in wing size. This result emphasizes that crucial traits such as wings can be subject to multiple, conflicting selection pressures.

 

I am currently carrying out a large comparative study where I explore how body size, wing size and wing shape are related to the distribution areas and ranges of American species of dragonflies (Libellulidae).