Population - created from Mind Map

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Population distribution

Global population growth

The way in which people are spread across a given area

Different scales

Tends to be uneven

Population density

Local

Regional

National

Global

Average number of people per square kilometre

Way of measuring population distribution

The population density of a country has little to do with its level of economic development

Factors affecting population density

Shows weather an area is densely or sparsely populated

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

Attract

Discourage

Socioeconomic factors

Political factors

Temperate climate

Low lying land

Good supplies of natural resources

Fertile land

Extreme climates

Mountainous areas

Dense vegetation

Desert

Highland areas

Rainforest

Jobs

High wages

Civil war

Steady growth until the 1800's

Population Pyramids

Demographic transition models

Causes of population change

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

Show structure of population

Compares relative numbers of people in different age groups

Structures differ in LEDCs and MEDCs

Shows population change over time

Natural causes

Migration

Death

Birth

Population will decline if death rate is higher than birth rate

The difference between the birth and death rates is called the natural increase

Population will increase if birth rates are higher than death rates

Subtract death rate from birth rate

LEDCs have high growth rates

Both birth rates and death rates tend to be high