WHAT CAN BE DONE ABOUT YOUTHFUL AND AGEING POPULATIONS? Population control policies.
1)What does the map show? 2)Why is this useful? 3) What types of countries have a youthful...
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Transcript of 1)What does the map show? 2)Why is this useful? 3) What types of countries have a youthful...
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1) What does the map show?2) Why is this useful?
3) What types of countries have a youthful population?
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Population Structure
LEARNING OBJECTIVES1. Be able to annotate population pyramids2. Distinguish between the population structure of an MEDC
and an LEDC
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Keywords:
• Census:• Demography:• Population pyramid:• Sex-ratio:• Age distribution:• Dependent Population:• Economically Active:
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http://populationpyramid.net/WORLD/2015/
• Demography is the study of people and populations.
• Governments carry out a census to find out who lives in their country.
• They use the information to produce population structures• However, they are taken at different times in different countries and often
country boundaries change so it is difficult for a census to be accurate.Some countries can not afford to do a census and people do not always fill in the forms so the population of the world can only be an estimate.
• Demographers use census information to create population pyramids
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What do they show?
• Sex-ratio: the amount of males to females in a location
Males are shown on the left.
Females are shown on the right.
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What do they show?
Age distribution of a country
Age categories split into 5 year stages
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• Dependent Population: The population under the age of 15 and over 65
What do they show?
Children 0-14 years of age
Elderly population 65+ years of age
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• Economically Active: 15-60 years old who have the potential to contribute economically
What do they show?
Workforce
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What do they show?
In this country
there is a high Birth
Rate
There is also a high
Death Rate.
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What should you annotate?
Sex-ratio: what is the male/female
ratio
Birth Rate: Is the BR increasing or decreasing
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What do population pyramids look like for different stages of the DTM?
Stage 5?
Complete Complete sheetsheet
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Dependency Ratio
• The dependency ratio can be expressed as:
Population( u14 + 65+) X 100
Population 15-65
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• Which population pyramid is for Germany, Kenya (LEDC) and USA (MEDC)?