Download Human Population

Human Population
What type of growth does this graph display?
Exponential
Which Continent has the greatest population of Humans?
Asia
***For your notes-if it is in RED write it
down
Age Distribution: A population pyramid
that displays trends and patterns of growth.
There are 3 types of Population Pyramids:
1. Expansive population pyramid:
Shows larger numbers or percentages of the
population in the younger age groups, usually with
each age group smaller in size or proportion than
the one born before it.
These types of pyramids are usually found in
populations with very large fertility rates and lower
than average life expectancies.
The age-sex distributions of Latin American and
many Third World countries would probably display
expansive population pyramids
Expansive population pyramid:
.
2. Constrictive population pyramid
Displays a population where the population
numbers are reduced at the lower ages
The age-sex distributions of the United States fall into
this type of pyramid. In the United States, the population
is growing at a rate of about 1.7 percent annually. This
growth rate is reflected in the more square-like structure
of the pyramid.
Note the lump in the pyramid between the ages of about
35 to 50. This large segment of the population is the
post-World War II baby boom. As this population ages
and climbs up the pyramid, there will be a much greater
demand for medical and other geriatric services.
Constrictive population pyramid
3. Stationary or near-stationary:
population pyramids display somewhat equal
numbers or percentages for almost all age groups.
Of course, smaller figures are still to be expected at
the oldest age groups. The age-sex distributions of
some European countries, especially Scandinavian
ones, will tend to fall into this category.
Germany is experiencing a period of negative growth
(-0.1%). As negative growth in a country continues,
the population is reduced.
A population can shrink due to a low birth rate and
a stable death rate. Increased emigration may also
contribute to a declining population
Stationary or near-stationary
United States
1. What type of Age Distribution does each of these
display?
United StatesFranceIndia
2. Why does India’s look so different from the other two?
Think Birth Rates, Death Rates, Immigration and Emigration
3. Who lives longer in the United States? Males or Females
Grant County, North Dakota
Orange County, Florida
4. What type of Age Distribution does each of these display?
Grant CountyOrange County5. What percent of the population are 40-44 year old females
in Orange County?
6. Which County has a greater birth rate?
7. What is happening at the 20-34 age range in Grant County?
Think Birth Rates, Death Rates, Immigration and Emigration
Ada County, Idaho
Bear Lake County, Idaho
8. What type of Age Distribution does each of these display?
Ada CountyBear Lake9. Explain the shape you see for Ada County.
Think Birth Rates, Death Rates, Immigration and Emigration
10. Explain the shape you see for Bear Lake County.
Think Birth Rates, Death Rates, Immigration and Emigration