Geo Pop Pyr derek

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Geo Pop Pyr derek

  1. 1. Population pyramids<br />By Derek McPherson<br />
  2. 2. What is a population pyramid?<br />It is a diagram that gives information about the proportion of males and females in each age group.<br />Also shows:<br /> - proportion of young people (0 -14 )<br /> - proportion of working people (15 – 59)<br /> - proportion of elderly people (60+)<br />
  3. 3. What is a population pyramid?<br />Vertical Axis - Age Groups<br />Elderly dependents<br />Working population<br />Young dependents<br />Horizontal Axis – Percentage / number<br />
  4. 4. How to read a population pyramid?<br />Read the title e.g. country or city or racial group<br />Comment on general shape of the pyramid<br />Note the proportion of people in various age groups <br />Note the sex ratio<br />Interpret the data<br />
  5. 5. Triangular-shaped Pyramid(Broad-based Pyramid)<br />
  6. 6. Broad-based Pyramid<br />Title: India, 2000<br />Shape: Broad Base - high birth rates<br /> Narrow Top - small elderly pop<br /> - high death rate<br />Proportion: - Large proportion of young<br /> - high young dependency <br /> ratio<br />Sex Ratio: Balance pyramid - Balanced sex ratio<br />
  7. 7. Indonesia<br />2000<br />Malaysia<br />2000<br />
  8. 8. Population Pyramids in Transition<br />

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