Gundagai local, Mason has worked with the Conservation and Landscape Ecology Group at the ANU for 18 years. Initially charged with the set up and field management for the South West Slopes Restoration Study, Mason has managed and assisted several projects such as the Nanangroe Natural Experiment and Jervis Bay Fire Study. A seasoned field ecologist, Mason has vast knowledge of Australian flora and fauna, particularly with regard to forest and woodlands.
Mason has investigated the demographics, home range and behaviour of Squirrel Gliders in agricultural landscapes of the South West Slopes, in order to improve their conservation, as part of his PhD with The Australian National University. Additionally, Mason is involved in restoration of Box Gum Grassy Woodlands in the Western Slopes area and with his wife, Miriam and their three children, also run a pastoral property near Coolac, integrating biodiversity conservation into the running of their fat lamb enterprise.
As of late 2017 Mason has taken on a role with ‘Sustainable Farms’ which incorporates much of his previous role, but now includes the establishment and maintenance of the Sustainable Farms Network and providing information and assistance to farmers and associated organisations in achieving sustainable agriculture.