Human Geography Population and Migration

1. Human Geography Population and Migration

2. Population

4. Part 1: Where is everyone?

5. Where is everyone? In what places on Earth do you expect to find the most people living? What common traits might these places exhibit?

6. What does this map show?

7. Common Traits of Global Population

8. How do you measure population?

9. “You measure population by looking at Population Density; the number of people relative to the area of land.”

14. How has the population of Earth changed through time?

15. Ecumene • The permanently inhabited portion of the Earth.

16. 5000 B.C.E. What do you expect?

17. 1 C.E. What do you expect?

18. 1500 C.E. What do you expect?

19. 1900 C.E. What do you expect?

20. What do you notice about the uninhabited areas of the earth?

21. Inferences: What inferences can you make by looking at countries with a high percentage of arable land but a low agricultural density? What inferences can you make about a country with a high physiological density but a low arithmetic density?

22. Where do most people live now?

23. Two-thirds of the World’s Population is concentrated in four specific areas.

24. East Asia China, Japan, the Korean Peninsula, and Taiwan

25. South Asia India, Pakistan, Bangladesh, Sri Lanka

26. Southeast Asia The islands of Java, Sumatra, Borneo, Papua New Guinea, Philippines, Indonesia

27. Europe Largely concentrated in urban areas.

28. Part 2: Where has the World’s population increased?

29. How do you measure population change?

30. “You can measure population change through the Crude Birth Rate, the Crude Death Rate, and the Natural Increase Rate.”

31. What do you notice? The Crude Birth Rate (CBR) is the total number of live births a year for every 1,000 people alive in the society.

32. What do you notice? The Crude Death Rate (CDR) is the total number of deathsa year for every 1,000 people alive in the society.

33. What do you notice? The Rate of Natural Increase (RNI) is the percentage by which a population grows in a year.

34. RNI = (Crude birth rate − Crude death rate) / 10

35. What is Madagascar’s Natural Rate of Increase? 2.992% = (37.89 − 7.97) / 10

37. What do you notice? The Total Fertility Rate(TFR) is the average number of children a woman will have during her childbearing years.

38. Replacement Rate • The number of children each woman needs to have to maintain current population levels (Zero Population Growth). • In developed countries, the necessary replacement rate is about 2.1. What do you expect the replacement rate to be in an LDC? Why the extra 10th of a baby?

39. Replacement Rate • Since replacement can not occur if a child does not grow to maturity and have their own offspring, the need for the extra .1 child (a 5% buffer) per woman is due to the potential for death and those who choose or are unable to have children. • In less developed countries, the replacement rate is around 2.3 due to higher childhood and adult death rates.

40. What’s going to happen? • Mali – Total Fertility Rate = 7.38 • Niger – Total Fertility Rate = 7.37

41. What do you notice? The Infant Mortality Rate (IMR) is the annual number of deaths of infants under 1 year compared with total live births.

42. What do you notice? Life Expectancy measures the average number of years a newborn can expect to live at current morbidity levels.

43. For Your Consideration: What allowed the population to grow so quickly from 1750 – 2000?

44. How did we get so big so fast? http://www.youtube.com/watch?v=VcSX4ytEfcE http://www.youtube.com/watch?v=sc4HxPxNrZ0

45. Part 3: Why is population increasing at different rates in different places?

46. What is the doubling rate?

47. “The doubling rate is the amount of time it takes to double a population.”

48. What is a model?

49. “A model attempts toexplain or demonstrate why something exists the way it does. “

50. What is the demographic transition model?