Population geography vocabulary

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Basic vocabulary for studying population geography

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Population geography vocabulary

  1. 1. Vocabulary
  2. 2. Population Vocabulary Demography  Population Pyramid Population  Replacement Rate Distribution  Dependency Ratio Population Density Birth Rate Death Rate Life Expectancy Demographic Transition Model 3
  3. 3. DemographyThe study of human populations and how they change over time. Vocabulary 4
  4. 4. Population Distribution The pattern of population- where people live- in a country, a continent, or the world.Looking at the map,how can you tell wherethe largest populationslive in the UnitedStates?Can you describewhere the largestpopulation distribution isin the U.S.?What about the lowest Vocabularypopulation distribution? 5
  5. 5. Population Distribution Sparsely populated- contain few people  Tend to be difficult places to live  Example: Antarctica Densely populated- contain many people  Tend to be livable environments  Example: Europe 6
  6. 6. Where do people live in the U.S.?What do the brightlights indicate?Why are there morebright lights on theeast coast?What influenceswhere people live inthe United States?Describe whichareas are sparselypopulated andwhich are denselypopulated. 7
  7. 7. Population Density Average number of people who live in a measurable area such as a square mile or kilometer.What do younotice about thepopulationdistribution of theworld?What areas have ahigh populationdensity?What areas have alow populationdensity? Vocabulary Internet Geography 8
  8. 8. Population Density Notice that the world’s population is uneven. The most densely populated areas are located between 20°N and 60°N. This area has a large amount of land with temperate temperatures. 9
  9. 9. Factors Affecting Population Density Physical High Density Low Density FactorsShape and height Low land which is flat. High land that is of land Ex. Northern European mountainous. Ex. Plain Himalayas Resources Areas rich in Areas with too few resources (coal, oil, resources. Ex. Area wood, fishing, etc.) Ex. located below Sahara Western Europe called The Sahel Climate Areas of temperate Areas with extreme climates- plenty of rain hot and cold climates. and heat. Ex. The Ex. Sahara United Kingdom 10
  10. 10. Factors Affecting Population Density Human High Density Low Density Factors Political Countries with stable Countries with governments. Ex. unstable United States governments- people migrate. Ex. Afghanistan Social People want to live People prefer to be close to each other for isolated. Ex. security. Ex. United Scandinavians States Economic Good job opportunities Limited job particularly in large opportunities. Ex. cities. Amazon Rainforest 11
  11. 11. Factors for population changes Birth rate Death rate Migration The first two factors are the major reasons for the change. When birth rates are higher than death rates, the population will increase. 12
  12. 12. Birth Rate The number of births in a year for every 1,000 people in a population.What regions havelower birth rates?What regions havehigher birth rates?Why do regions in theworld have differentlevels of birth rates? Vocabulary The darker colors represent the countries with high birth rates 13
  13. 13. Death RateThe number of deaths in a year for every 1,000 people in a population.What regions have lowdeath rates?What regions have highdeath rates?Why do different regionsof the world have higherdeath rates? Vocabulary The darker colors represent the countries with higher death rates. 14
  14. 14. Life ExpectancyThe number of years a person can expect to live. Japan has highest life expectancy in the world. Vocabulary 15
  15. 15. Life Expectancy Life expectancy gives an overall indicator of how healthy a country is. A great deal of information can be derived from studying life expectancy such as the standard of living. As a general rule, the higher the life expectancy, the healthier (and more developed) a country is. 16
  16. 16. Demographic Transition Model The model shows how a countries population Vocabulary changes as it develops. The model is divided into 4 stages. Internet Geography 17
  17. 17. Demographic Transition Model Stage 1  Low population growth  Birth & death rates high- results in little population change  Characterized world population until 17th century  Low total population 18
  18. 18. Demographic Transition Model Stage 2  Rapid population growth  Birth rate is high with economic development beginning  Death rate falls with improved healthcare and more food 19
  19. 19. Demographic Transition Model Stage 3  Population growth begins to slow  Falling birth rate- as economy improves growth slows  Low death rate 20
  20. 20. Demographic Transition Model Stage 4  Negative or no population growth  Birth and death rates drop to low levels  Over time birth rates fall behind death rates  High total population 21
  21. 21. Population Pyramid A graph that is used to show the males and females within different age groups of a population. Vocabulary 22
  22. 22. The female population from20-24 years would make upa little over 4% of thepopulation. 23
  23. 23. 24
  24. 24. Population Pyramids Wide at bottom shows rapid population growth- more born than dieing Straight sides show nearly equal Narrow at bottom shows negative population growth- more dieing than born 25
  25. 25. Population Pyramids Developing countries usually have wide base and narrow top- represents high birth & death rates Developed countries usually have equal distribution through age groups- top gets narrower due to deaths 26
  26. 26. Replacement RateWhen enough babies are born to replace those people who die each year. Vocabulary 27
  27. 27. Dependency Ratio Compares the number of dependents too young or old to work (persons under age 15 or above age 64) with the countries working-age population (persons over ages 15 to 64). Vocabulary 28
  28. 28. Dependency Ratio Low dependency- too few workers have few dependents to support High dependency- a high means a lot of young or old people for workers to support 29

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