CGC1D April 3, 2014 Demographics. How Many People? Link: World Population Clock Population Video…

CGC1DApril 3, 2014

Demographics

How Many People?

Link: World Population Clock

PopulationVideo…

The Study of Populations

• Demographics is the study of populations.

It helps answer questions such as– Why are more schools closing than opening?– Why will you likely have to work more years than your

parents before retiring?– Why are old rock-and-roll groups, such as the Rolling

Stones, still so popular?

Demographers use rates…(*stats from 2003)

Births per day in Canada: 906

Births per day in Russia: 3 836

Which country is growing fastest due to births?

Population: 32 million

Population: 143 million

In order to compare the births in each country, we use the Birth Rate:

Birth Rate = # of births per year x 1000Total Population

Canada: 330 690 x 1000 Russia: 1 400 140 x 100032 000 000 143 000 000

= 10 births/ 1000 people = 10 births / 1000 people

How do Populations Change?

4 ways…

Naturally: 1) Births and 2)Deaths

Migration: 3) Immigration and 4)Emigration

How do populations change?Natural Change (Births and Deaths)Birth Rate (# of births per year / population) x 1000Death Rate (# of deaths per year / population) x 1000

Balance between Births and Deaths is “Natural Increase Rate”

Natural Increase Rate = Birth Rate – Death Rate

MIGRATION (Immigration and Emigration)Immigration Rate (# of immigrants per year/population) x 1000Emigration Rate (# of emigrants per year/population) x 1000

Balance between Immigration and Emigration is “Migration Rate”

Migration Rate = Immigration Rate – Emigration Rate

Population Growth Rate

The overall growth of a population can be determined by adding the natural increase rate and the net migration rate.

e.g. Canadian Example

3/1000 + 5/1000 = 8/1000

(0.8%)


• The best way to compare populations of different countries is through population pyramids.

• It is a “paired horizontal bar graph” with females on the right…


…and males on the left.

• Both sides show the percentages of people in each age group.


• Putting the two sides together can allow you to easily compare a country’s population for different years (or to compare different countries).


• The dependency load is the part of the population that needs to be supported. It is made up of two components: the 0–14 age group and the 65+ age group.


• What has happened to the dependency load between 1956 and 2004?

• What is the significance of this change?


• A specific pattern of population growth has occurred in many developed nations during the past 60 years.

• What does a “typical” person look like?

1945 1965 1985 2005 2025

Birt

hs Baby Boom

Generation X

Baby Echo

Generation Y

Population DensityPopulation Density is a measure of the number of members of a population in a given area. It is usually measured in km2.

PD = # of people/areae.g.

Country/Landmass Density (people/km2)

World 41

Sioux Lookout 13.3

Canada 3.4

Toronto 3 972

Population Density

Population Density

Interactive world map

Population Density: 6 480 people/ sq. km.

(Sioux Lookout: 13.3 people/ sq. km!)

Canadian average: 4 people/ sq. km.

HONG KONG

?

What accounts for the change around 1800?

Historical Trends of Populations


• Canadian Immigration Patterns


• Immigration to Canada has had periods of boom and bust. These were caused by events that occurred both in Canada and in other countries.

When? What Happened? Why?

1840sArrival of thousands of Irish

settlers

Irish potato crop fails; facing starvation, many Irish move

to Canada and other countries

1905-1914

Massive immigration from Eastern Europe to the

Canadian West

Canadian Government wanted to settle the Prairies;

offered free land and other incentives to immigrants



1915-1919

Little immigrationWorld War I and worldwide

influenza epidemic

1930 – 1945

Little immigrationWorldwide economic

depression and World War II

1947-1960

Many Italians come to Canada

World War II devastated Italy; Italians searched for economic opportunities in

Canada



1956Many Hungarians come to

Canada

Hungarian revolt against the Russians failed; refugees

fled to Canada to avoid punishment

1980 – 1997

Arrival of thousands of Hong Kong Chinese

Residents of Hong Kong sought political stability

before China took control of Hong Kong in 1997

1980 - 2003

Many people from Afghanistan come to

Canada

Immigrants seek a safe haven from conflicts that

engulfed their country


• The percentage, by location, of the population that is made up of immigrants.

YT NT


• What factors cause people to leave the country in which they live and move to another country? (PUSH FACTORS)


• What factors attract people to move to another country, such as Canada?(PULL FACTORS)

CGC1D April 3, 2014 Demographics. How Many People? Link: World Population Clock Population Video…

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