Mind Map by , created over 5 years ago

GCSE Geography (Population) Mind Map on Population, created by Keera on 04/27/2014.

Created by Keera over 5 years ago
Geography AQA Revison topics Migration, Population Change, Youthful Populations and more
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1 Population distribution
1.1 The way in which people are spread across a given area
1.1.1 Different scales Local Regional National Global
1.1.2 Tends to be uneven
1.1.3 Population density Average number of people per square kilometre Way of measuring population distribution Shows weather an area is densely or sparsely populated The population density of a country has little to do with its level of economic development Bangladesh = LEDC = densely populated Japan = MEDC = densely populated The majority of places with high population densitites are in the Northern hemisphere Areas of densely or sparsely population are spread unevenly across the world Factors affecting population density Attract Temperate climate Low lying land Fertile land Good supplies of natural resources Discourage Extreme climates Desert Mountainous areas Highland areas Dense vegetation Rainforest Socioeconomic factors Jobs High wages Political factors Civil war
2 Global population growth
2.1 Steady growth until the 1800's
2.1.1 In 1820 the world's population reached 1 billion In the early 1970's the world's population reached 3 billion In 1999 the world's population doubled to 6 billion Global rate of population growth is now 1 billion every 15 years
2.2 Population Pyramids
2.2.1 Show structure of population Compares relative numbers of people in different age groups Structures differ in LEDCs and MEDCs
2.3 Demographic transition models
2.3.1 Shows population change over time
2.4 Causes of population change
2.4.1 Natural causes Death Population will decline if death rate is higher than birth rate Birth The difference between the birth and death rates is called the natural increase Subtract death rate from birth rate Population will increase if birth rates are higher than death rates LEDCs have high growth rates Both birth rates and death rates tend to be high
2.4.2 Migration

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