The Demographic Transition Model or Population Cycle

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The Demographic Transition Model or Population Cycle

Stage 1 - High birth rate and high death rate

When birth rate and death rate are birth high (about 35 per 1000) then the natural increase is very low, giving only a small population growth or no change at all. Examples of populations at Stage 1 are rare today because of the spread of modern medicines and new farming techniques. Perhaps only a few remote tribes in the Amazon forest, which have little contact with the outside world, are still in Stage 1. The UK was at Stage 1 before the Industrial Revolution up to about 1750.

Reasons for a high death rate include:

1. Diseases such as Cholera and Bubonic Plague.

2. Famine and Malnutrition.

3. Lack of clean water and sewerage facilities.

4. Lack of medical care and drugs.

Stage 2 - The birth rate remains high and the death rate begins to fall

At the start of stage 2 both birth rate and death rate remains high.

Reasons for a high birth rate are:

1. Economic - many children mean more workers in the