Peter has been undertaking invasive animal research for the Vertebrate Pest Research Unit since 1983. His research is highly collaborative and focuses on the adaptive management of wildlife, including invasive mammalian carnivores and herbivores in Australia and globally, and the ecological, economic and social impacts of their presence and management. Peter’s research contributes to ecological theory and conservation outcomes. Much time is spent investigating population estimation methods (camera trapping and aerial surveys). His other activities are investigating contacts between feral goats and sheep, rabbit age cohorts and wild and domestic dogs for developing epidemiological models of diseases such as Rabbit Calicivirus Disease, Rabies, Foot-and-Mouth Disease and African Swine Fever.