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Alaska
4
Animals/Vertebrates
4
Biological Classification
Biological Productivity
4
Biology
4
Biosphere
Biota
4
Birds
4
Climate Change
4
Community composition
4
Earth Science
4
Vegetation changes
4
Waterfowl
Alpine/Tundra
2
Arctic Coastal Plain
2
Avian abundance
2
Branta
2
Branta bernicla
2
Calcarius
2
Calcarius lapponicus
2
Calidris
2
Calidris mauri
2
Cardellina
2
Cardellina pusilla
2
Carex
2
Carex subspathacea
2
Catharus
2
Catharus minimus
2
Chen
2
Chen caerulescens
2
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