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Demography's data are
To collect demographic's data is very important for
governments in order to do a correct politician
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Population density is the number of people in a
given area (usually given as persons per sq. km.)
How do you calculate it?
Total population of a place
Area they occuped (km2
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REAL INCREASEREAL INCREASE
REAL INCREASEREAL INCREASE= NATURAL INCREASE +/- MIGRATION= NATURAL INCREASE +/- MIGRATION
STAGE 3:STAGE 3:
Birth rates fall rapidly
(20 per 1000), while
death rates continue
to fall (15 per 1000)
The fall in birth rate may
be due to:
- Family planning (contraceptives,
Sterilisation, abortion, etc)
- A lower infant mortality rate,
therefore less need to have
so many children.
- Increased industrialisation:
fewer labourers are needed.
- Increased desire for material
possessions (cars, holidays...)
- Emancipation of women
STAGE 4:STAGE 4: LOW FLUCTUATINGLOW FLUCTUATING
Both birth rates (12 per 1000) and
death rates (10 per 1000) remain low,
fluctuating slightly to give a steady
STAGE 5:STAGE 5: LOW FLUCTUATINGLOW FLUCTUATING
Slight fall in birth rate, death rate is stable
By Cristina Sevilla
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