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Alaska
2
Animals/vertebrates
2
Biological classification
2
Biota
2
Birds
2
Clangula
2
Colville River Delta
2
Ducks/Geese/Swans
2
Indigirka River
2
Kuskokwim River
2
Nunavut
2
Queen Maud Gulf
2
Russia
2
Terrestrial Ecosystems
2
Yukon Delta
2
genetic diversity
2
hyemalis
2
population genetic structure
2
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