Polymerase chain reaction, Aquatic ecosystems, Coastal ecosystems, Wetland ecosystems, DNA sequencing, Genetic diversity, Genetics, Wildlife, Marine ecosystems

Environment, Biota

Microsatellite Repeats, Genetic markers, Migratory birds, Birds, DNA Primers, Genotype, Harlequin Duck, Animals/Vertebrates, Ducks/Geese/Swans, Gene Flow, Population Genetics, DNA, Mitochondrial, Histrionicus histrionicus, Alleles, Waterfowl, Overwintering, DNA

Greenland, Terror Bay, Morse Creek, Duckabush River, Main Bay, Ravneøer, Uganik Passage, York Island, Oak Harbor, Naajarluttuut, Haida Gwaii, Magadanskaya Oblast, Powooiliak Bay, Bay of Isles, Strait of Georgia, Hamma Hamma River, Washington, Mitlenatch Island, Oymyakonskiy Rayon, Kolbeinsá Stream, Knight Island, Húnaþing Vestra, Dunlop Point, Breton Islands, Vatnsdalsá, Alf Island, Bugða, Port Chalmers, Alaska Peninsula, Protection Island, Little Green Island, Maine, Skeiða- og Gnúpverjahreppur, Dalsá, Little Spoon Island, Francisco Point, Laxá, Magadan, Green Ledge, Amalik Bay, Sermersooq, Hrauná, Húnabyggð, Mývatn, Merchants Point, Afognak Island, Shemya Island, Bear Island, Foul Bay, The Cow Pen, Þingeyjarsveit, Crafton Island, Sakha, British Columbia, Kodiak Island, Kongkok Bay, Russia, Fort Flagler, Stockdale Harbor, Hornby Island, Siknik Cape, Iceland, Norðurá, Canada, Green Island, Isle au Haut, Ljósavatn, Uyak Bay, Quadra Island, Pribilof Islands, Skútustaðahreppur, Uganik Island, Alaska, Kjósarhreppur, Hnausakvísl River, Channel Island, Brimstone Island