The DTM model

• What is the DTM?

  Demographic transition model

  
  

  Shows change over time in the population of a country
• The DTM

  Label the following

  A) Natural Increase

  B) NEEs

  C) LICs

  D) Traditional rainforest

  
• What is the gap between the BR and DR?

  Natural increase

  Natural decrease
• Stage 1

  The birth rate is very high - Many children are needed for farming, no family planning

  
  

  The death rate is high - Due to disease, poor medical knowledge

  
  

  Natural inc is stable
• Stage 2

  The birth rate is very high - Many children needed for farming, no family planning

  
  

  The death rate falls rapidly - Improvements in medical care, water supply and sanitation

  
  

  Natural inc increases rapidly
• Stage 3

  The birth rate falls - Improved medical care so fewer children are needed

  
  

  The death rate falls slowly - Fewer children dying do to the improvements.

  
  

  Natural inc - slows down
• Stage 4

  The birth rate is low - Family planning, good health, women are having later marriages

  
  

  The death rate is low - Reliable food supply

  
  

  Natural inc - stable or slow increase
• Stage 5

  The birth rate is very low - Family planning, good health, Improving status of women, later marriages

  
  

  The death rate low - Good health care and reliable food supply

  
  

  Natural inc - Slow decrease or in decline?

  
  

  Total population decreases