José Xavier is an marine ecologist (Cambridge University, PhD) focusing his research on Southern Ocean ecology, particularly on foraging and feeding behavior of top predators, and ecological links to their prey, to climate change, collaborating with more than 10 countries, since 1997. José is a Tinker-Muse Prize awardee for science and policy in Antarctica and the Head of Delegation of Portugal at the Antarctic Treaty Consultative Meetings. He also coordinates science-policy-education projects.