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Measures of Population Change

Measures of Population Change. Births, Deaths and Fertility. World Population. Crude Birth Rate. Annual number of births per 1,000 population. Crude Birth Rate. Crude Death Rate. Total number of deaths per 1,000 population. Crude Death Rate. Infant Mortality Rate.

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Measures of Population Change

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  1. Measures of Population Change Births, Deaths and Fertility

  2. World Population

  3. Crude Birth Rate • Annual number of births per 1,000 population

  4. Crude Birth Rate

  5. Crude Death Rate • Total number of deaths per 1,000 population

  6. Crude Death Rate

  7. Infant Mortality Rate • Number of deaths each year to infants under age 1 per 1,000 live births

  8. Infant Mortality Rate

  9. Total Fertility Rate (TFR) • Number of children born to the average woman of childbearing age • Replacement rate = 2.1 • Must be greater than this in order for population to grow • World average: 2.8

  10. Total Fertility Rate (TFR)

  11. Rate of Natural Increase • Measure of growth • Natural Increase = • (Crude Birth Rate – Crude Death Rate)/10 • Does not count immigration/emigration • World average: 1.4%

  12. Natural Increase

  13. Life Expectancy • Average number of years before death

  14. Life Expectancy

  15. Arithmetic Population Density • Number of people per square mile or square kilometer • World = 53 per km2 • Lowest • Mongolia = 2 • Highest • Monaco = 18,068 • USA = 35

  16. World Population Density

  17. Physiologic Population Density • Number of people per sq. mile or sq. km of arable land • Highest • Singapore = 440,998 per km2 • Lowest • Australia = 43 • United States = 179

  18. Egypt • Population (2006) • 76.4 million • Arithmetic Density • 78 • Pysiologic Density • 2,668

  19. Population Growth

  20. Doubling Time • How many years it takes for population to double • Useful population growth measure • World population doubling time has been decreasing

  21. S-Curve

  22. Carrying Capacity

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