POPULATION PYRAMIDS

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POPULATION PYRAMIDS

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POPULATION PYRAMIDS. Objectives. WHAT is a population pyramid? HOW to read a population pyramid? Recognise SHAPES of population pyramids. IMPORTANCE of population pyramids. WHAT IS A POPULATION PYRAMID?. - PowerPoint PPT Presentation

Transcript of POPULATION PYRAMIDS

Page 1: POPULATION PYRAMIDS

POPULATION PYRAMIDS

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Objectives

WHAT is a population pyramid?HOW to read a population pyramid?Recognise SHAPES of population

pyramids. IMPORTANCE of population

pyramids.

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WHAT IS A POPULATION PYRAMID?

It is a diagram that gives information about the proportion of males and females in each age group.

Policy Planning • future housing estates• future schools• future jobs

Comparison with other countries• developed (US) vs developing (India)

Normally Males are on the left side and Females are on the right side Age categories are in 5 year intervals labeled up the center Age groups are divided into:

- proportion of young people (0 -14 )- proportion of working people (15 – 59)- proportion of elderly people (60+)

The horizontal axis is measured in numbers appropriate for the country. Each pyramid tells a story about the past, present & future of a country &

its people

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What is a population pyramid?

Vertical Axis - Age Groups

Horizontal Axis – Percentage / number

Young dependents

Working population

Elderly dependents

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HOW TO READ A POPULATION PYRAMID?

Read the title e.g. country or city or racial group

Comment on general shape of the pyramid

Note the proportion of people in various age groups

Note the sex ratio Interpret the data

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WHAT TO LOOK FOR IN A POPULATION PYRAMID?

SHAPE OF THE SIDES Concave (curved in) sides indicates a high

death rate and convex (curved out) indicates a low death rate.

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Hong Kong2000

Taiwan2000

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Hong Kong2000

Taiwan2000

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WHAT TO LOOK FOR IN A POPULATION PYRAMID?

WIDTH OF THE BASE Birth rates varies with the width of the base. A

WIDE base indicates high birth rate and a NARROW base indicates low birth rates

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Indonesia2000

Malaysia2000

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WHAT TO LOOK FOR IN A POPULATION PYRAMID?

Bumps in the sides or Symmetry Statistically speaking pyramids should be relatively

symmetrical. Any ASYMMETRY indicates a difference in the male and female population. IRREGULARITIES in the sides indicate a demographic difference.

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UK 2000

Netherlands2000

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Population pyramid that has a triangular / pyramid shape

Wide base of this population indicates a HIGH birth rate

Narrow top indicates HIGH death rate

Rapid Growth indicates Lower Standard of living.

High birth rate due to poor access to lack of birth control, education

High death rate due to lack of medication, education, nutrition

RAPID GROWTH

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Stable populations are characteristics of high standard of living due to: Low birth rate due to

good family planning, access to birth control, financial planning, education

Low death rate due to good medical care, nutrition, education

SLOW GROWTH

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Negative growth population have a narrower base that the reproductive age population

This indicates decrease population trend

Low birth rate reveals a more developed country

NEGATIVE GROWTH

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COMPARISON WITH OTHER COUNTRIES

MORE DEVELOPED COUNTRIES

Countries with high level of development and great deal of technology and manufacturing• Great number of automobiles,

doctors, computers, telephones

• Low Death Rates• High Standard of Living• Very good Healthcare• Literacy rate in the 90’s• Per Capita incomes $30,000

and above• Low Birth Rates

United States, Australia, France, Germany, Japan, England

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COMPARISON WITH OTHER COUNTRIES

NEWLY INDUSTRIALIZED COUNTRIES

Increase in income but standard of living has not improved (barely going through (INDUSTRIAL REVOLUTION)

Medium to Low death rate Improving standard of living Improving Health Care Literacy Rates in the 70% to

80% Per Capita Incomes rising

$10,000-$30,000 Birth Rate Declining

Brazil, Russia, India, China, Mexico

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COMPARISON WITH OTHER COUNTRIES

LESS DEVELOPED COUNTRY Countries in the process of

becoming industrialized, not economically advanced

• Concentrated on agriculture, lack investment, small amount of doctors and hospitals

• High Death Rate• Low Standard of Living• Poor Health Care• Low Literacy Rates-Below 50%• Low Per Capita Incomes $0-

$5,000• High Birth Rate

Afghanistan, Countries in Africa,