I work on the management of processes which threaten ecosystem function and biodiversity. In particular, the population dynamics, spread, evolution and herbivore interactions of both native and invasive plants. I have used a wide range of approaches to tackle these problems, from the development of simple, relatively abstract models, through to system specific simulation models, experiments and observational studies. I develop models to address applied problems and provide practical solutions.

Current projects include: population dynamics, spread and management of invasive grasses, herbs, shrubs and trees, experimental and theoretical evaluation of biological control and causes and consequences of invasive plant alteration of ecosystem processes.

I also collaborate with a wide international group of people from Universities, CSIRO, federal and state government and regional natural resource management groups.