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Demographic Transition Model

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Demographic Transition Model
Stage 1:
-Birth rate & death rate fluctuate at a high level, population stays low.
-Birth rate high due to no birth control or family planning, education is poor.
-High infant mortality
-Death rate high due to poor health care, sanitation and diet, leading to disease & starvation.
Stage 2:
-Death rate falls, birth rate remains high, population increases rapidly.
-Death rate falls due to improved health care, sanitation, & diet.
-Birth rate remains high due to little birth control or family planning.
Stage 3:
-Birth rate falls rapidly, death rate falls gradually, population increases at slower rate.
-Birth rate falls rapidly due to increased use of birth control & family planning.
Stage 4:
-Birth rate & death rate fluctuate at low levels, population stable but high.
-Birth rate low due to increased demand for luxuries & material possessions, less money available for children.
-People have fewer children as not as many die at a young age.
Stage 5:
-Birth rate begins to fall, death rate remains stable, population begins to decrease.
-Birth rate falls due to expenses involving children, dependent elderly relatives.
-Death rate remains steady despite health care advances as larger generations of elderly people die.

Información
- Descripción
- (Populations, Energy and Ecosystems ) Biology Apunte sobre Demographic Transition Model, creado por Victoria K el 17/04/2015.
- Creado por
- Victoria K
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