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Population growth and demographic transition model

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Population growth and demographic transition model

  1. 1. At present the world's population is growing quickly, but… this has not always been the case.
  2. 2. http://www.ined.fr/jeux.php?_movie=/flash/popu2/EN/INED_ANIM.swf&titre=How will the world population change in the future?&lg=en
  3. 3. DEMOGRAPHIC TRANSITION MODEL DTM shows population change over time, how birth rate and death rate affect the total population of a country
  4. 4. HIGH STATIONARY STAGE - deseases - food shortages - natural desasters Birth and death rates are both very high (35-40 per thousand). Slow population growth All human populations up until the late 18thC.
  5. 5. EARLY EXPANDING STAGE Gap between death and birth rates The death rate declines while the birth rate remains high. Rapid rise in population growth (a "population explosion") The decline in the death rate in Europe began in the late 18th.C Many LEDCs entered stage 2 in the second half of the 20th C.
  6. 6. LATE EXPANDING STAGE The gap between birth and death rates narrows due to the decline in birth rates. Total population is still rising, but the growth begins to slow down
  7. 7. LOW STATIONARY STAGE The death rate and birth rate remain low. Slow population growth The birth rate fluctuates due to changes in the economy. Most MEDCs are now at this stage
  8. 8. DECLINING STAGE The death rate remains low or increases a little (ageing population). The birth rate keeps decreasing. Negative population growth. Germany

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