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Chapter 4, Section 2
Population Geography
What are some factors that have contributed to world population
growth?
Population Statistics
_______ Rate– number of live births per 1000 people per year
______________ Rate (Death Rate) – number of deaths per 1000 people per year
Rate of _____________ _____________ (Population Growth Rate) – difference between Birthrate and Mortality Rate
Birthrate – Death Rate = Rate of Natural Increase
Population Statistics
Fertility Rate – the average number of children that would be born per woman
If all women lived to the end of their childbearing years
If all women gave birth according to the rate at each age
Current replacement rate is ___ children per woman
Infant Mortality Rate – the number of deaths among infants (_____ year of age or younger) per thousand live births
Population Pyramids
Shows _______ and ___ distribution of a population Allows geographers to examine how events affect
the population of a country or region _______, _______________, epidemics, etc.
Shows population proportion Young People (0 – ____) Working People (15 – _____) Elderly People (60 +)
What it Looks Like
Horizontal Axis – Percentage / number
Vertical Axis - Age Groups
Elderly dependents
Working population
Young dependents
How to Read a Population Pyramid
1)Read the title (Country, City, or Racial Group)
2)Comment on general shape of the pyramid
3)Note the proportion of people in various age groups
4)Note the gender ratio
5)Interpret the data
Pyramid Shapes
___________ Growth _________ Growth __________ Growth
*The shape of each pyramid is controlled by: Births Deaths Migrations
Rapid Growth
Title: Shape:
Proportion:
Gender Ratio:
Slow Growth
Title: Shape:
Proportion:
Gender Ratio:
Negative Growth
Title: Shape: Proportion: Gender Ratio:
Migration
Movement of humans from one area to another
___________ – to leave one's native country to settle in another
___________ – to come to a country of which one is not native
Caused by push-pull factors
PUSH FACTORS PULL FACTORS
Population Density
The average number of people that live in a measurable area
Shows how heavily populated an area is Found by dividing total _________________ in an
area by the total __________________ they occupy
Things to remember: Population density can change over time Can be misleading due to uneven distribution
Carrying Capacity
The number of people a piece of land can support Increased due to:
Fertile Soil Abundant Resources Technology Wealth
_________________ occurs when the given resources of a piece of land can not support the number of people living on it