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Permafrost
4
Arctic
3
Climate warming
3
Contamination
3
Industrie
3
alaska
2
beringia
2
foliar cover
2
proportional abundance
2
vegetation
2
vegetation map
2
yukon
2
Arctic change
1
Bar-tailed godwits
1
Bird migration
1
Ground ice
1
Habitat destruction
1
Methane
1
Nitrous Oxide
1
Phenology
1
abundance
1
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