migration(redirected from Migration of animals)
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Related to Migration of animals: Migration birds
migrationthe movement of people into (immigration) and out of (emigration) a country that serves to increase or decrease the country's POPULATION and labour force. For example, immigration was an important factor in the early colonization of Australia and New Zealand, and the USA and Canada.
Collins Dictionary of Economics, 4th ed. © C. Pass, B. Lowes, L. Davies 2005