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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

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POPULATION PYRAMIDS

POPULATION PYRAMIDS

ObjectivesWHAT is a population pyramid?HOW to read a population pyramid?Recognise SHAPES of population pyramids. IMPORTANCE of population pyramids.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 estatesfuture schoolsfuture jobsComparison with other countriesdeveloped (US) vs developing (India)Normally Males are on the left side and Females are on the right sideAge categories are in 5 year intervals labeled up the centerAge 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 peopleWhat is a population pyramid?Vertical Axis - Age GroupsHorizontal Axis Percentage / number

Young dependentsWorking populationElderly dependentsHOW TO READ A POPULATION PYRAMID?Read the title e.g. country or city or racial groupComment on general shape of the pyramidNote the proportion of people in various age groups Note the sex ratioInterpret the data

WHAT TO LOOK FOR IN A POPULATION PYRAMID?SHAPE OF THE SIDESConcave (curved in) sides indicates a high death rate and convex (curved out) indicates a low death rate.

Hong Kong2000Taiwan2000

Hong Kong2000Taiwan2000WHAT TO LOOK FOR IN A POPULATION PYRAMID?WIDTH OF THE BASEBirth rates varies with the width of the base. A WIDE base indicates high birth rate and a NARROW base indicates low birth rates

Indonesia2000Malaysia2000WHAT TO LOOK FOR IN A POPULATION PYRAMID?Bumps in the sides or SymmetryStatistically 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.

UK 2000Netherlands2000Population pyramid that has a triangular / pyramid shapeWide base of this population indicates a HIGH birth rate Narrow top indicates HIGH death rateRapid Growth indicates Lower Standard of living.High birth rate due to poor access to lack of birth control, educationHigh death rate due to lack of medication, education, nutritionRAPID GROWTH

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, educationLow death rate due to good medical care, nutrition, education SLOW GROWTH

Negative growth population have a narrower base that the reproductive age populationThis indicates decrease population trendLow birth rate reveals a more developed countryNEGATIVE GROWTH

COMPARISON WITH OTHER COUNTRIESMORE DEVELOPED COUNTRIESCountries with high level of development and great deal of technology and manufacturingGreat number of automobiles, doctors, computers, telephones Low Death RatesHigh Standard of LivingVery good HealthcareLiteracy rate in the 90sPer Capita incomes \$30,000 and aboveLow Birth RatesUnited States, Australia, France, Germany, Japan, England

COMPARISON WITH OTHER COUNTRIESNEWLY INDUSTRIALIZED COUNTRIESIncrease in income but standard of living has not improved (barely going through (INDUSTRIAL REVOLUTION)Medium to Low death rateImproving standard of livingImproving Health CareLiteracy Rates in the 70% to 80%Per Capita Incomes rising \$10,000-\$30,000Birth Rate DecliningBrazil, Russia, India, China, Mexico

COMPARISON WITH OTHER COUNTRIESLESS DEVELOPED COUNTRYCountries in the process of becoming industrialized, not economically advancedConcentrated on agriculture, lack investment, small amount of doctors and hospitalsHigh Death RateLow Standard of LivingPoor Health CareLow Literacy Rates-Below 50%Low Per Capita Incomes \$0-\$5,000High Birth RateAfghanistan, Countries in Africa,