Population Pyramids Stages of Demographic Transition Model Stage

Population Pyramids

Stages of Demographic Transition Model Stage Pre. Wealthier LEDC MEDC industrial LEDC (Stage 2) (Stage 4) (Stage 5) (Stage 1) (Stage 3) Birth rate High Declining Low Very low Death rate High Moderate Low Low Life expect Short Medium Long Pop’l growth Slow Rapid Slowing Stable Shrinking

Stage 2 Pyramid: Wide Base Male Female There is also a high Death Rate. In this country there is a high Birth Rate Population in millions This population pyramid is typical of countries in poorer parts of the world (LEDCs. )

Stage 2 example

Stage 3: Wide Middle In some LEDCs the government is encouraging couples to have smaller families. This means the birth rate has fallen.

Stage 3 example

Stage 4: Slender Male Female The largest category of people were born about 40 years ago. In this country the number of people in each age group is about the same. Population in millions In this country there is a low Birth Rate and a low Death Rate. This population pyramid is typical of countries in the richer parts of the world (MEDCs. )

Stage 4 example

Stage 5: Narrow Base Male Female Population in millions In this country the birth rate is decreasing. This is happening more and more in many of the world’s richer countries. In the future the elderly people will make up the largest section of the population in this country.

Stage 5 example

Demographic Transitions in China

China: 2005

Population pyramid for Mozambique. Population pyramid for Iceland.