Mark is the Adrienne Clarke Chair of Botany at the University of Melbourne and Editor-in-Chief of the journal Conservation Biology. He has published over 200 refereed articles and seven authored books in ecology, conservation and risk analysis, and has worked in Australia, the United States and Switzerland. In 2006 he was elected to the Australian Academy of Science and received the Society for Conservation Biology Distinguished Service Award. He won the Royal Society of Victoria Research medal in 2013.
He is interested in the representation and propagation on uncertainty, and on elicitation of expert judgment. He works on ecological modelling, conservation biology and risk assessment. His research has included models on a broad range of species and settings including marine fisheries, forestry, irrigation, electrical power utilities, mining, and national park planning.