FIG. 1.

Locations of sampling areas and animal distribution (adapted from Wikimedia Commons [Giovanni Fattori]). 1, Deception Island, South Shetland Islands; 2, King George Island, South Shetland Islands; 3, Hannah Point, Livingston Island, South Shetland Islands; 4, Byers Peninsula, Livingston Island, South Shetland Islands; 5, Cape Primavera, Antarctic Peninsula; 6, Rongé Island, Errera Channel; 7, Paradise Bay, Antarctic Peninsula; 8, Galindez Island, Argentine Islands; 9, Avian Island, Marguerite Bay, Antarctic Peninsula. •, Weddell seal (Leptonychotes weddelli); ◘, crabeater seal (Lobodon carcinophagus); ⧫, leopard seal (Hydrurga leptonyx); ▪, southern elephant seal (Mirounga leonina); ▴, Antarctic fur seal (Arctocephalus gazella).