How and why do populations change naturally?

RoryFlynn2
Mind Map by , created over 6 years ago

A-level Geography G2 (1.2 - How and why do populations change naturally?) Mind Map on How and why do populations change naturally?, created by RoryFlynn2 on 05/07/2013.

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RoryFlynn2
Created by RoryFlynn2 over 6 years ago
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How and why do populations change naturally?
1 Demographic transition model
1.1 Population pyramids models
1.1.1 Stage 1: Afghanistan
1.1.1.1 Birth rate stays equal /w slight increase
1.1.1.1.1 No birth control
1.1.1.1.2 High infant mortality
1.1.1.1.3 Children needed to work
1.1.1.2 Death rate fluctuates
1.1.1.2.1 Diseases
1.1.1.2.2 Poor hygiene
1.1.1.2.3 No/little health care
1.1.1.2.4 Famine/ malnutrition
1.1.1.2.5 War/ terrorism
1.1.1.3 Total population fluctuates
1.1.2 Stage 2: Bangladesh
1.1.2.1 Birth rates begin to slightly drop
1.1.2.2 Death rates dramatically decreased
1.1.2.2.1 Slightly better housing
1.1.2.2.2 Slightly better food/ water
1.1.2.2.3 Modest healthcare
1.1.2.2.4 Lower infant mortality
1.1.3 Stage 3: Mexicio
1.1.3.1 Birth rate drops
1.1.3.1.1 Birth control
1.1.3.1.2 Lower infant mortality
1.1.3.1.3 Desire for smaller families
1.1.3.2 Death rates continue to decrease
1.1.3.3 Total population rises
1.1.4 Stage 4: UK
1.1.4.1 Birth rate reaches a low point and fluctuates
1.1.4.2 Death rate levels off
1.1.4.2.1 Improved medical care (NHS)
1.1.4.2.2 Good quality housing
1.1.4.2.3 Easy access to food/ water
1.1.4.2.3.1 High wealth compared to LEDCs
1.1.5 Stage 5: Japan
1.1.5.1 Decreasing birth rate
1.1.5.1.1 Change in culture - desire smaller families
1.1.5.2 Level death rates
1.1.5.2.1 Medication becomes advanced
1.1.5.2.1.1 Natural deaths cause a level but low death rate
1.1.5.3 Total population decreases
1.1.5.3.1 As population hits a high resources cannot be shared equally
1.1.5.3.1.1 Total population must decrease to survive sustainably
1.1.5.3.1.2 Out-migration

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