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Demographics. Demographics – the study of human populations and populations. What factors could influence Median Age? How economic & cultural factors could cause a location to have a severe gender imbalance?
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Demographics – the study of human populations and populations • What factors could influence Median Age? • How economic & cultural factors could cause a location to have a severe gender imbalance? • Why would a country have more young people than adults and how could this strain their economy? • How could the Syrian conflict, the Arab Spring or the Japanese earthquake & tsunami influence populations?
What are some factors that influence human populations? • Migration Patterns • Economic recession & opportunities • Flee political/religious/individual oppression to freedom elsewhere • Cultural Influences • Religious values – family size, abortion vs. full term pregnancy • Gender bias/preferences • Economics & Income - Standards of living • Healthcare access – Sanitation & disease • Formal Education level – Planned Parenting Programs • Politics • War & conflict / Peace & stability • Government’s ability to satisfy people’s needs • Geography & Climate • Natural Resources Available: Food, Water etc. • Natural disasters: Drought, Floods, Tsunami etc
Population Pyramid – Age Picture Diagram A graph that shows the distribution of various ages groups in a population, which usually forms a pyramid Draw a population pyramid in your notebook and label the parts
Venezuela’s Population through time Slowing Growth bottom angling slightlyoutward Stable - No Growth flat sides Stable – Slightly Declining flat sides - bottom angling inward
Demographic Transition Model Stage 1 Pre-Industrial Econ. Hunter & Gatherer, Subsistence Stage 2 Early Industrial Econ. Mining & Agriculture Stage 3 Developed Industrial Econ. Manufacturing & Distribution Stage 4 Developed Economy Service Industry