I am interested in a variety of ecological questions which often have underlying application to conservation. I have a particular enthusiasm for islands, where complex ecological relationships can become reducible and tractable. Of particular interest are population and behavioural ecology questions relating to what makes species threatened or invasive, and how these trends can be reversed. I also work with macroecology questions related to biogeography such as species diversity and community composition, and in the application of genetic methods within an ecological context. My work often has a strong statistical modelling or analytical component. I also have a strong interest in animal ethics and environmental values. Research sites have included New Zealand, Southern Ocean, Western Indian Ocean, French Polynesia, North Atlantic, Mediterranean, Caribbean and the Tibetan Plateau.