Ecology &
Evolutionary Biology

My main interests are in reproductive strategies: sexual behaviour and life history traits.  For example, I have studied the ways in which individuals adjust their reproductive strategies to the behaviour and population demography (e.g., sex ratio, density) of conspecifics.   I also study the role of frequency dependent selection (rare male advantage and predator search image) in maintaining the extreme, genetically-based variation in the colour patterns of male guppies in natural populations.  In third set of studies, my colleagues, students, and I have discovered a role of a sensory bias in mate choice decisions of female guppies and of many related species of poeciliids, goodeids and now medaka.