Demography%20and%20Population%20Pyramids

1
Demography and Population Pyramids

• HSB4M Chapter 5

2
Social Trends

• In social science these are not fads, fashions or
  the latest things.
• These are large scale changes in a society.

3
Demography

• the study of changes affecting human population
• is concerned with the overall population, the
  immediate phenomena that alter it as a whole
  (births, deaths, migrations), or changes in its
  composition (sex, age, marital status, language,
  religion, education, income, etc.)
• The Canadian Encyclopedia. (N.d.). Demography.
  Retrieved from www.thecanadianencyclopedia.com

4
Demography Synonyms

• Population analysis
• Population dynamics
• Vital statistics

5
Interests of Demographers

• Fertility
• Mortality
• Migration (immigration, emigration, rural-urban)
• Aging
• Diversity
• Labour market
• Participation rate
• Marriage
• Divorce

6
Uses of Demography
By For (e.g.)
Govt Planning for future services such as hospitals
Businesses Knowing customers buying habits planning where to locate a new store
Organizations (such as charities) Knowing how many immigrants will come to a city in the future
School boards Where will schools have to be built and/or closed
7
Population Change

• Natural balance of births, deaths, movement of
  people (immigration emigration)
• What would be the best kind of balance for a
  country such as Canada? What kind of situation
  are we in now?
• Define from page 146
• Natural increase
• Natural decrease
• Net migration
• Therefore, population change natural inc/dec
  net migration

8
Social Impact of Baby Boom

• What happens when a countrys population rises a
  lot during a short period?

By 1966 half of the population was under 24
years old. Now that group makes up 25.
Year Canadas Population
1946 12 million
1966 20 million

• What happens when there are so many young
  people?

9
Population Pyramid

• A quick way to determine population
  characteristics and some change over time
• A type of graph that demonstrates population
  patterns by age and sex
• Cohorts age groups or categories
• Male and female of total population shown
• Describe the shape of the base, middle and tip
  for 1961 and 2006?
• What does a PP not show (or tell you)?

10
PP 1996
Natural Resources Canada. (2004). The atlas of
Canada population pyramid 1996. Retrieved April
25, 2012 from http//atlas.nrcan.gc.ca/auth/englis
h/maps/peopleandsociety/age/age1996/can_graph.gif/
image_view
11
PPs for 1966 and 2006
Canadian Institutes of Health Research. (2007).
The future is aging. Retrieved April 25, 2012
from http//www.cihr-irsc.gc.ca/e/34013.html
12
PP 2006
Statistics Canada. (2009). 2006 Census analysis
series findings. Figure 7 different cohorts
among the age pyramid of the Canadian population
in 2006. Retrieved April 25, 2012 from
http//www12.statcan.ca/census-recensement/2006/as
-sa/97-551/figures/c7-eng.cfm