The Dogfighting Tactics of Dragonflies - Sam Fabian

Standing at the edge of a pond, it is common to see dragonflies engaged in rapid aerial clashes. These engagements, or pursuits, serve three different functions: (1) predation, (2) territoriality, and (3) mating. We know little about the differences between these interactions and how dragonflies adapt their pursuit tactics to serve each function. Using high-speed videography in the field with a stereographic rig, we can measure these dramatic flight performances and reveal complexities hidden by speed. Slowing down these interactions shows an extreme competition of aerobatic manoeuvres and gives us a new appreciation for how adult dragonflies are adapted for life in the air.
Sam Fabian (Postdoctoral Research Associate, Imperial College London)