UNIT 2 REVIEW POPULATION POPULATION DISTRIBUTION AND DENSITY

UNIT 2 REVIEW POPULATION

POPULATION DISTRIBUTION AND DENSITY

DISTRIBUTION

ECUMENE • Portion of the earth’s surface that is habitable for humans.

DENSITY

FOUR MAJOR POPULATION CLUSTERS 1. 2. 3. 4. East Asia South Asia Europe Southeast Asia

KEY TERMS

TOTAL FERTILITY RATE (TFR) • Number of children predicted to be born to a woman as she passes through fertile years

Infant Mortality Rate (IMR) • Number of deaths of children under 1 year of age per 1, 000 births over a year.

Rate of Natural Increase (RNI) • Natural growth rate of a population, which is CBR minus CDR expressed as a percentage. A positive RNI indicates a growing population, whereas a negative RNI indicates a population reducing in size. An RNI equal to zero indicates a stabilizing population.

LIFE EXPECTANCY • Average number of years a person is expected to live.

DEMOGRAPHIC TRANSITION

FOOD PRODUCTION

POPULATION PYRAMIDS

MIGRATION

MIGRATION • A permanent move to a new location.

Pull Factor • Factor that attracts a migrant to a region, such as good schools or nice weather.

Push Factor • Factor that causes a migrant to move out of a region, such as high taxes or poor schools.

IMMIGRATION BY COUNTRY

MAJOR MIGRATION STREAMS

MIGRATION STREAMS TO THE U. S.

U. S. INTERREGIONAL MIGRATION

U. S. INTRAREGIONAL MIGRATION