Supplementary Table S1: Names and coordinates of the major study sites in the Southern Ocean and on the Antarctic Continent where tracking devices were deployed on the selected species (indicated by their 4-letter codes in the last column). Sector Location name Location coordinates Species Indian Ocean Prince Edward Islands 46° 46ƍ S, 37° 51ƍ E ANFS, DMSA, GHAL, KIPE, LMSA, MAPE, SOES, WAAL Crozet Islands 46° 25ƍ S, 51° 59ƍ E KIPE, WAAL, WHCP Kerguelen Islands 49° 15ƍ S, 69° 10ƍ E ANFS, BBAL, SOES, WAAL Heard Island 53° 6ƍ S, 73° 31ƍ E ANFS, BBAL, KIPE, LMSA, MAPE South Atlantic Ocean Falkland (Islas Malvinas) 51° 41ƍ S, 59° 10ƍ W KIPE, SOES Signy Island 60° 43ƍ S, 45° 36ƍ W ADPE South Georgia 54° 15ƍ S, 36° 45ƍ W ANFS, BBAL, KIPE MAPE, SOES, WAAL, WHCP Bouvet Island 54° 25ƍ S, 3° 22ƍ E ANFS, SOES Antarctic Peninsula South Shetland Islands (incl. 62° 0ƍ S, 58° 0ƍ W ADPE, ANFS, SOES, WESE Elephant Island) Sea ice or at sea CRAS, HUWH, WESE South Pacific Ocean Macquarie Island 54° 30ƍ S, 158° 57ƍ E ANFS, BBAL, GHAL, KIPE, LMSA, ROPE, SOES, WAAL Campbell Island 52° 32ƍ S, 169° 8ƍ E GHAL At sea off Raoul Island 29° 15ƍ S, 177° 59ƍ W HUWH At sea off the Australian east HUWH coast Weddell Sea Filchner Trough 77° 0ƍ S, 36° 0ƍ W WESE Drescher Inlet 72° 50ƍ S, 19° 2ƍ W CRAS, WESE Sea ice CRAS, WESE Queen Maud Land Svarthamaren 71° 54ƍ S, 5° 10ƍ E ANPE 1 Hukuro Cove 69° 12ƍ S, 39° 37ƍ E ADPE Mac.Robertson Land Taylor Glacier 67° 27ƍ S, 60° 51ƍ E EMPE Ufs Island 67° 28ƍ S, 61° 8ƍ E ADPE Béchervaise Island 67° 35ƍ S, 62° 49ƍ E ADPE Auster Rookery 67° 24ƍ S, 63° 57ƍ E EMPE Scullin Monolith 67° 47ƍ S, 66° 42ƍ E ADPE Princess Elizabeth Land Amanda Bay 69° 15ƍ S, 76° 51ƍ E EMPE Magnetic Island 68° 33ƍ S, 77° 55ƍ E ADPE Vestfold Hills 68° 33ƍ S, 78° 15ƍ E SOES, WESE Wilkes Land Shirley Island 66° 17ƍ S, 110° 29ƍ E ADPE East Antarctica Sea ice CRAS Terre Adélie Pétrel Island, Terre Adélie 66° 40ƍ S, 140° 1ƍ E ADPE, EMPE, WESE Ross Sea McMurdo Sound 77° 30ƍ S, 165° 0ƍ E WESE Edmonson Point 74° 20ƍ S, 165° 8ƍ E ADPE Ross Island 77° 30ƍ S, 168° 0ƍ E ADPE, EMPE Coulman Island 73° 29ƍ S, 169° 45ƍ E EMPE Sea ice WESE 2.