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63651
Population Dynamics
Description
Cambridge IGCSE Geography (Population and Settlement) Mind Map on Population Dynamics, created by gdrake91 on 30/04/2013.
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geography
population and settlement
geography
population and settlement
cambridge igcse
Mind Map by
gdrake91
, updated more than 1 year ago
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gdrake91
over 11 years ago
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Resource summary
Population Dynamics
Population Explosion
This is referring to the recent, dramatic, increase in the global population
Reasons for the Growth
Due to modern medicine people are living for longer
Food Production has increased worldwide due to a better understanding of agriculture
Death rates are falling faster than birth rates
In LEDC's large families are still commonplace despite to offset the extra labor they undertake, despite the dramatic increase in life expectancy
Main Factors of Population Growth
Birth Rate
The number of births per year, per 1000 population
Death Rate
The number of deaths per year, per 1000 population
Migration
The permanent, seasonal or temporary movement of people
Resources
The more resources a country has, the more children people have.
Underpopulation
When a country or region has more resources available than are being used by the people living there
Problems
Restricts economic growth
Can be unstable if the dependency rate is too high
Restricts social growth
Population won't be able to fill all the jobs that are needed
Overpopulation
When a country or region does not have enough resources to keep its people living at a reasonable standard
Problems
Not enough housing
High crime rates
Not enough health care
Not enough education
Congestion
Shortage of food and water
Water and air pollution
The Impact of HIV on Growth Rates
HIV drastically increases death rates all around the world, the most severe of which can be seen in Africa
HIV spawned in Africa and the USA, then being transferred through the Middle East and South America.
MEDCs where HIV is still prevalent are USA and Russia
In Africa, HIV is present everywhere
The most infected areas are along the southern coast
11-20% infected
Some of the countries have an infection rate of +20%
Central Africa is less infected
1-5% infected
Exceptions
Kenya
Tanzania
Gabon
Cameroon
Central African Republic
Social and Economic Impacts
Drastically reduces the work force
Weakens economy
Taboo against women, as they account for 58% of the infected population
Amount of deaths leaves behind many orphans
Prevention of AIDS
Educating the teenage population of the symptoms and treatments
Public advertisement about contraception
Personal testing kits
Quarantine for highly infected areas
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