7 Stable Pyramid or Concave Triangular: Stage 1 Shape: Concave TriangularNo country in Stage 1 todayHigh Crude Birth RateHigh Crude Death Rates and short Life ExpectancyLow GrowthYoung population
8 Expansive or Triangular: Stage 2 High Birth RateDecreased Death RateIncreased life expectancyHigh Growth RateYoung populationDeveloped world entered this stage during Industrial RevolutionThis population pyramid is typical of countries in poorer parts of the world (LEDCs.)
10 Expanding pyramid Male Female There is also a high Death Rate.In this country there is a high Birth RatePopulation in millionsThis population pyramid is typical of countries in poorer parts of the world (LEDCs.)
11 In some LEDCs the government is encouraging couples to have smaller families. This means the birth rate has fallen.
12 Stationary or Columnar: Stage 3 Birth Rate decreases through societal changesDeath Rate continues to decreaseLonger Life ExpectancyModerate GrowthAgeing populationThis population pyramid is typical of countries in the richer parts of the world (MEDCs.)
14 Stationary pyramid Male Female Population in millionsThe largest category of people were born about 40 years ago.In this country the number of people in each age group is about the same.In this country there is a low Birth Rate and a low Death Rate.This population pyramid is typical of countries in the richer parts of the world (MEDCs.)
15 Contractive or Inverted: Stage 4 Declining Birth RateLow Death RateLong Life ExpectancyLarger number of elderly populationLow GrowthAgeing population.
17 Contracting pyramidMaleFemalePopulation in millionsIn this country the birth rate is decreasing.In the future the elderly people will make up the largest section of the population in this country.This is happening more and more in many of the world’s richer countries.
18 Spearhead pyramidThere are narrower parts in the middle part of the pyramid. People in their 20s in 1961 were born during the Depression, a time of economic hardship in Canada when people were having fewer children.The pyramid had a wide base. These are the “baby boomers,” a large group of people born between 1947 and 1966 when the economy was growing and prospering.This is caused by a war, a time of economic hardship, illnesses, famine...
19 Population in thousands MaleFemalePopulation in thousandsThis country has a large number of temporary workers. These are people who migrate here especially to find a job.
20 LESS DEVELOPED COUNTRIES To sum up…Expanding pyramidStationary pyramidContracting pyramidDEVELOPING COUNTRIESDEVELOPED COUNTRIESLESS DEVELOPED COUNTRIES