3.6 - Age Structure Diagrams

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12 Terms

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Age cohorts and growth

groups of similarly aged individuals

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pre-reproductive

0-14 cohort =

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reproductive age

15-44 cohort =

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post-reproductive

45+ cohort =

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Current and future growth

Larger 0-14 cohort =

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Slight growth/stable

Roughly equal 0-14 & 15-44 cohorts =

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population decline

Larger 15-44 cohort =

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rapid growth

Extreme Pyramid shape =

<p>Extreme Pyramid shape =</p>
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slow, stable growth

Less extreme pyramid =

<p>Less extreme pyramid =</p>
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stable, little to no growth

house =

<p>house =</p>
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Declining population

narrowest at base =

<p>narrowest at base =</p>
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Example

Practice Reading Diagrams:

Highest to Lowest Growth Rate

- India > US > China > Germany

Number of 0-14 Individuals:

- India = 360 million

- US = 62 million

- Germany = 11.5 million

- China = 270 million