Population

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Demography's data are very important!!

To collect demographic's data is very important for governments in order to do a correct politician

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HUMANPOPULATION

DENSITY

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

P.D.=----------------------------------------------Area they occuped (km2)

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People distributionis uneven

REAL INCREASEREAL INCREASE

REAL INCREASEREAL INCREASE= NATURAL INCREASE +/- MIGRATION= NATURAL INCREASE +/- MIGRATION

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STAGE 3:STAGE 3:LATE LATE

EXPANDINGEXPANDING

Birth rates fall rapidly(20 per 1000), while

death rates continueto 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 materialpossessions (cars, holidays...)

- Emancipation of women

STAGE 4: STAGE 4: LOW FLUCTUATINGLOW FLUCTUATING

Both birth rates (12 per 1000) anddeath rates (10 per 1000) remain low,

fluctuating slightly to give a steadypopulation

STAGE 5: STAGE 5: LOW FLUCTUATINGLOW FLUCTUATING

Slight fall in birth rate, death rate is stable

By Cristina Sevilla