My interests are broad but mainly focus on the ecological and evolutionary factors that determine the structure and dynamics of communities and ecosystem functioning. In my research I combine theoretical and empirical work to develop predictive frameworks for understanding how species interactions and abiotic environmental factors determine the structure and dynamics of communities and how they drive population dynamics and the evolution of complex life histories. Most of my current research focuses on the impact of population size structure, cannibalism and seasonal variation (including climate change) on the structure and dynamics of communities and their evolutionary consequences.