Congratulations to Graham Sorenson for successfully defending his MSc thesis yesterday entitled “Assessing physiological and behavioural energetics as biomarkers of environmental change in seabirds“. Graham’s thesis explored the use of physiological and behavioural biomarkers in assessing the response of seabird species to rapid environmental change. The thesis combined a meta-analytical approach to assess the strength of corticosterone-fitness relationships in seabirds, as well as a field-based empirical study of the mechanisms underlying individual- and population-level responses of Arctic-breeding thick-billed murres to changes in sea ice conditions. Fantastic work Graham. We’re all very proud.