1. all the inhabitants of a particular town, area, or country.
POPULATION
all the inhabitants of a particular town, area, or country.

2. POPULATION PYRAMID- WHAT?
Another way to analyze populations.
It shows sex and age distribution of a population.
Allows geographers to study the effects of: wars, famine, or epidemics on a society.
POPULATION PYRAMID- WHAT?

3. Population Pyramids What can we learn about tomorrow looking at a population pyramid today?3

4. Interpreting a Population Pyramid
A population pyramid is a bar graph turned on its side. Each line is showing the % of the population is a certain age.
Examine the title and the type of data presented (ex. age breakup, numbers listed below, male-female notation)

5. POPULATION PYRAMID – PYRAMID SHAPED
fast growth
lots of babies
less developed

6. POPULATION PYRAMID – TOWER SHAPED
steady growth
population evenly distributed
more developed

7. POPULATION PYRAMID – CUP SHAPED
negative growth
population aging
developed

8. POPULATION PYRAMID What is true when populations live longer?
More elderly means more people are retired, therefore, a labor shortage.
Fewer young people means fewer people paying taxes; therefore, difficulty with social services.
More elderly means more people are on social security; therefore,… uh oh.

9. POPULATION PYRAMID What is true when populations are getting larger?
Huge population increase means greater demand on the food supply.
More people means more labor, but it also could mean more unemployment and labor abuse.
More people means greater demand for resources and raw materials, which means more deforestation which means… uh oh.

10. Population Geography

11. Population Geography is:
The study of variations and changes in a population’s makeup, distribution, and movement.

12. Other Factors Affecting Population
Emigration and Immigration can affect population totals.
Emigration
Immigration
People entering a country.
People leaving a country.

13. CARRYING CAPACITY
Is the amount (number) of organisms a piece of land can support.
EXAMPLES:
An area with fertile land with be able to support more people than an area with poor soil or little farmable land.
The level of technology that the people have will also help support more people. (irrigation, fertilizers, and mechanized farm equipment)
Amount of money an area draws in can also allow a place to support more people.

14. PUSH FACTORS
Are those things that cause people to leave their homeland and migrate to another region.
EXAMPLES:
Environmental Conditions (drought, tornado, hurricane)
War
Persecution of people (Ethnic or Religious reasons)
Unemployment
Lack of Safety
Poverty
Isolation

15. PULL FACTORS EXAMPLES:
Are things that draw or attract people to another location.
EXAMPLES:
Good economic opportunities
High Salaries
Favorable climates
Potential Employment
Safer Atmosphere
Fertile Land
Food supply
Less risk of natural hazards
Friends & Family

16. URBAN GEOGRAPHY The study of how people use space in cities
City– center of population, commerce, and culture
Suburb – residential area or community outlying a city
Metropolitan area – functional union of large city w/suburbs and exurbs (Austin)
Megalopolis – region made up of several large cities and their surrounding areas in sufficient proximity to be considered a single urban complex (Dallas, Washington, DC, Boston)