Population growth
Birth Rate - The number of babies born in a country each year per 1000 of the total population
Death Rate - The number of people in a country who die in a year out of every 1000 of the total population
Natural Increase/Growth rate - This is the birth rate minus the death rate (given as a percentage)
Population change through time
|
|
Birth
Rate
|
Reason
|
Death Rate
|
Reason
|
| LEDCs |
High |
No contraception
Couples have many babies to compensate for the high death rate caused by poor health care
Large families need to work in primary industries to contribute to family income
Children look after old
Religious reasons |
High |
Poor medical facilities
Disease
Poor nutrition
High Infant mortality |
| NICs |
High/
Decreasing |
People are used to having many children. Takes time for culture to change |
Decreasing |
As an economy develops money becomes available for better health care
Housing improves
Better childcare |
| MEDCs |
Low |
Children are expensive
People know their children are going to survive so they can keep their families small
Widely available contraceptives |
Low |
Better health care
Better standard of living |
Rural to urban migration is a feature of LEDC - Migration in Brazil
1. In Brazil, movements towards the South East industrial region (Sao Paulo etc) from the North East drought zone called the Caatinga.
Why?
Push Factors:
-
Drought
-
Poor standard of living
Pull Factors:
-
Chance of a better job
-
Chance of a better standard of living
-
Chance of a better education
2. In Brazil, movements towards the Amazon Rainforest from the North East drought zone called the Caatinga.
Why?
Push Factors:
-
Drought
-
Poor standard of living
Pull Factors:
-
Settlers attracted by cheap land
-
Iron ore and HEP industry
-
Free plots of land offered by the Brazilian Government
What might the examiner ask?
- Definitions BR/DR natural increase
- Working of model
- Characteristic stage for ELDC
- Recognition of level of development
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