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