Corticosterone Diving behaviour Birds Fitness Trace elements Thyroid hormones Arctic Foraging Diomedea exulans Body condition Biological invasion Seabirds Depredation Energetics Conservation biology Salmonidae Disease ecology Black-legged kittiwake Mitochondria Animal migration Insect Demography Salmonids Sea ice Antarctic Abundance Diet Behavioural ecology Bio-logging Foraging behaviour Biological invasions Wandering albatross Oxidative stress Tracking Age Mate choice GPS Functional traits Mercury Capture–mark–recapture Ageing Blood Cold stress Management Breeding success Sexual selection Foraging behavior Movement ecology Stable isotopes Mirounga leonina Pygoscelis adeliae Phenotypic plasticity Accelerometry Metabolism InvaCost Dispersal Metabolomics Energy expenditure Arctocephalus gazella Killer whales Southern Indian Ocean Salmo trutta Stress Morphology Southern elephant seal Seabird Monetary impacts Southern Ocean Behaviour Svalbard Contaminants Personality Marine predators Poisson Global change PFAS Rissa tridactyla Diving behavior Conservation Reproduction Bioaccumulation Fisheries Biologging Ecology Biodiversity Ecophysiology ACL Invasive species Climate change Albatrosses Migration Sea trout Kerguelen Distribution Foraging ecology Survival Population dynamics Antarctica Procellariiformes Fish