I am a forest ecologist and entomologist specialising in the ecology, impacts and management of non-native and native forest insects and other taxa. I am also passionate about the biodiversity of insects, birds, and vascular plants, and relationships between biodiversity and ecosystem functioning. In recent years, much of my research has focused on bark beetles and other wood and bark-boring insects, groups that include many of the highest-impact invaders of forests world-wide. Another key research interest is the role of forest biodiversity in the biotic resistance to insect pests and invasive species as well as other ecosystem services. Finally, I am also studying effects of land cover and land use change on insects, birds and plants.