Comparison of Age Structure Diagrams

 

1) Pyramid Age Structure

-Expanding Population

-Large number of people are at child bearing age

-In Africa, 46% of the women are less than 15-huge growth in the future.

-Characteristics in these countries: high birth rates, short life spans, low GNP’s, focus on agriculture, less developed countries.

-Ex: Many African countries, India

 

 

 

2) Rectangular Age Structure

-Stable Population, Zero Population Growth

-Highly industrialized, low birth rates,

-Long life expectancies

-High GNP’s

-Low Infant Mortality Rates

-Ex: Hungary, Poland

 

 

 

 

 

 

3) Inverted Age Structure

-Not enough reproductive women to replace lost individuals.

-Much of the population is in the post-reproductive age (old)

-Population will decrease.

-Industrialized, long life expectancies.

-Ex: Germany, Japan