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migration
Branta bernicla nigricans
1
East Asia
1
autumn
1
birds
1
body mass
1
ecology
1
geese
1
growth
1
latitude
1
life-history
1
metabolic rate
1
moult
1
oxygen consumption
1
physiology
1
plasticity
1
range expansion
1
respirometry
1
sedentary
1
spring
1
staging
1
trends
1
waterfowl
1
wildfowl
1
wintering
1
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