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2. Population Pyramids and the Demographic Transition Model
Transcript of 2. Population Pyramids and the Demographic Transition Model
Demographic Transition Model
Global population distribution is uneven due to the uneven distribution of resources and desirable habitable locations.
Trends in Population Distribution
Traditionally populations have always been concentrated near water.
There is also a trend towards rapidly urbanizing populations.
Currently ½ of the world’s population lives in urban areas, a rapid increase over the last century.
Urban areas are growing at twice the rate of rural populations.
Vocabulary Words to Know:
3) Developed Countries
4) Developing Countries
Population Pyramids and the Demographic Transition Model
What has allowed the world population to grow so rapidly in the past 200 years?
Shows the age of a population by gender
Shows unique patterns among world populations
You can determine which countries are developed or developing
Stage 1 – Pre-Industrial countries- birth and death rates are high
Stage 2- Developing countries- death rates decrease rapidly due to infrastructural and medical improvements
Stage 3- Developing countries- birth rates decrease rapidly due to access to contraception, and an urbanizing society
Stage 4- Developed countries- both birth and death rates are low, birth rates may drop below replacement level. (Examples: Germany, Italy)
Rural = Country Life / Agricultural Town
Urban = City life / City
Developed = Country with a highly developed economy and advanced technological infrastructure, advanced medical care, and high standard of living
Developing = a nation with a low living standard, underdeveloped industrial base, low medical care, and lower life expectancy