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Settlement composition of these islands is based on co-residence of male siblings after marriage; seasonal or annual changes are mainly a result of economic pressures. Location and mobility of settlements is controlled by availability of food, dog-food, and fuel (driftwood, lichens). Acculturated groups migrate in winter to the west where foxes are abundant, in summer to the east for wage employment. Seasonal location of traditional settlements conforms to biogeographical features, viz: coastal characteristics which influence the number and availability of seals.
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Milton M. R. Freeman (1967) studied this question.
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