Population Geography Warmup: View the following photo and make three observations (on your paper).
Population Geography Population geography is focused on the scientific study of people, their spatial distributions and density. Population geographers study: The increase and decrease in population Peoples’ movements over time General settlement patterns Occupations How people form the geographic character of a place Demographers are people who study population statistics and trends.
Population Distribution What factors might contribute to where people decide to live? Do you agree with your neighbors’/Miss Caspers’ ideas? YES NEUTRAL NO
Population Distribution As seen in the satellite photo, world population is uneven. Rural areas are sparsely populated Harsh climate/physical features Urban areas are densely populated ( Are likely more hospitable (better access to resources)
Population Density Total Area population / Square miles (km2) 2015 Which regions are most dense?
Density Statistics per Continent North America - 30 people per square mile South America - 70 people per square mile Europe - 140 people per square mile Asia – 200 people per square mile Africa - 60 people per square mile Australia/Oceania - 10 people per square mile Antarctica – 0 people per square mile
Population Change Birth rate: births/1,000 Death rate: deaths/1,000 Fertility rate: Average number of children that would be born to a woman over her lifetime. Infant Mortality Rate: Deaths of infants 1 year or less/1,000 Natural Increase (Annual): Births – Deaths Growth rate = Natural Increase + Net Migration
Fertility Rate
Growth Over Time World Population Video At what point did human population begin to grow rapidly? What was happening at the time of increase? What major events caused the population to explode?
Exponential Growth Lower Death rates Developed countries birth rates have lowered, yet undeveloped countries birth rates have remained high. Infant mortality rates have lowered Better health care Improvements in sanitation (clean water, and sewerage systems prevents disease) Improvements in agriculture production and access to food.
Human J Curve
Population Pyramids Age/Gender graph Why would a low level country have a high birth rate, and high infant mortality rate?
Rapid Growth Triangle shaped pyramid=high growth rate 2.6% Annual Growth Rate
Slow Growth 0.7% Annual Growth Rate Ages 45-59=Baby Boomers What will these cohorts need in the future?
Negative Growth -0.8% annual growth rate Low birth rates Stable death rates Emigration = people leaving the country