| Citation | Distinguished for innovative research into quantitative dynamics of the role of mammals and birds in marine ecosystems. His development and use in Antarctica of new ways of studying diet, movements and energetics of pelagic animals during swimming, diving and flight has transformed knowledge of their functional capacities and role in nutrient and energy fluxes in marine systems. He also pioneered collection of co-ordinated long-term data on dynamics of Southern Ocean top predators, now underpinning management of Antarctic marine living resources and assessment of biological consequences of regional climate change. Noted for his leadership role in national and international conservation organisations. |