Department of Zoology University of Otago
Since arriving here from Canada in 1992, I have established a research programme in parasite ecology and evolution that focuses on broad questions and not on any particular taxa. Currently, our research has three main branches, reflecting my main long-term interests. First, we investigate the forces shaping the evolution of parasites, in particular the evolution of life history traits such as body size and fecundity, host specificity, the ability to manipulate host behaviour, and the complexity of the transmission pathways. Second, we are studying the role of parasites in freshwater and coastal marine ecosystems, i.e. how they affect community diversity and productivity and food web stability, and how parasitism may interact with climate change to influence the properties of ecosystems. Third, I have long been exploring large-scale patterns of parasite biodiversity and biogeography, in the hope of better understanding the processes behind the diversification and distribution of parasites and diseases.