Understanding Population Pyramids

Population Pyramids

http://ecp3113-01.fa01.fsu.edu/lively_introduction/fig7.gif

What will the pyramid look like in 2025? 2050?

Age Dependency Ratio

10 8 6 4 2 0 2 4 6 8 10

0-4 yrs.5-9 yrs.

10-14 yrs.15-19 yrs.20-24 yrs25-29 yrs30-34 yrs.35-39 yrs.40-44 yrs.45-49 yrs.50-54 yrs.55-59 yrs.60-64 yrs.65-69 yrs.70-74 yrs.75-79 yrs.

80+ yrs.AGE

PERCENT

Males(%)Females(%)

Italy, 2000

1

2

34

5

Analysis of Italy’s Population Pyramid

• 1. Decline in Birth Rate• 2. Baby Boom• 3. Fewer men due to World War I and II • 4. More women due to: a. longer life

expectancy and b. World Wars (I and II) • 5. More 75-79 yrs than 0-4 yrs. Signs of a

future worker shortage and an overall declining population.

Aging population…

…declining birth rate

10 8 6 4 2 0 2 4 6 8 10

0-4 yrs.5-9 yrs.

10-14 yrs.15-19 yrs.20-24 yrs25-29 yrs30-34 yrs.35-39 yrs.40-44 yrs.45-49 yrs.50-54 yrs.55-59 yrs.60-64 yrs.65-69 yrs.70-74 yrs.75-79 yrs.

80+ yrs.AGE

PERCENT

Males(%)Females(%)

Italy, 2000

10 8 6 4 2 0 2 4 6 8 10

0-4 yrs.5-9 yrs.

10-14 yrs.15-19 yrs.20-24 yrs25-29 yrs30-34 yrs.35-39 yrs.40-44 yrs.45-49 yrs.50-54 yrs.55-59 yrs.60-64 yrs.65-69 yrs.70-74 yrs.75-79 yrs.

80+ yrs.AGE

PERCENT

Males(%)Females(%)

Italy, 2025

10 8 6 4 2 0 2 4 6 8 10

0-4 yrs.5-9 yrs.

10-14 yrs.15-19 yrs.20-24 yrs25-29 yrs

30-34 yrs.35-39 yrs.40-44 yrs.45-49 yrs.50-54 yrs.55-59 yrs.60-64 yrs.65-69 yrs.70-74 yrs.75-79 yrs.

80+ yrs.AGE

PERCENT

Males(%)Females(%)

Italy, 2050

http://marketplace.publicradio.org/display/web/2007/11/22/why_italian_men_wont_leave_the_nest/#

Mammoni: “Mama’s Boy”

How is this population pyramid different from Italy’s?

http://www.townsendchamber.org

Population Pyramids at Different Scales

• Country• State• County (Borough)

http://www.aleutianseast.org

http://dsc.discovery.com/fansites/deadliestcatch/deadliestcatch.html

ACTIVITYfor

Selected Population Pyramids in the

United States

Helpful Hints…

A. Ann Arbor, MI - University of Michigan

B. Buffalo county, SD - Crow Creek Indian Reservation, one of the poorest counties in the United States

C. Punta Gorda, FL - retirement community

D. Leavenworth, KS - United States Penitentiary

E. Manhattan, NYC - wealthy downtown, few large families

F. Nothhamton, MA - Smith College, an all girls college

G. Fort Bragg, NC - United States Army Fort

H. Springfield, IL - average American city

Answers

• 1. B• 2. A• 3. E• 4. C• 5. G• 6. H• 7. F• 8. D

Population Pyramids for Selected Countries

Guest Workers, mainly from South Asia

http://fusions.wordpress.com/2007/08/06/migrant-workers-in-dubai

Guest Workers from India in the Persian Gulf Countries

Post War Baby Boom and Declining Birth Rate

http://www.economist.com/world/displaystory.cfm?story_id=9539825

http://kotaku.com/gaming/only-in-japan/strange-japanese-game-center-name-226261.php

Declining Birth Rate, Emigration, War

http://www.dw-world.de/dw/article/0,2144,1817206,00.html

Mourning the dead.

Stable Population Growth

http://www.airninja.com/worldfacts/countries/Argentina/fertilityrate.htm

Slow Decline

High Birth and Death Rates

http://atlas.7jigen.net/photo/?n=Comoros&ln=en

“Although the Comoros is a poor country, extreme manifestations of poverty such as famine or homelessness are rare. The great majority of people have access to adequate food, clothing, shelter, and, to some extent, water.”

http://poverty2.forumone.com/library/view/8688/

Slightly Increasing Population

“Increased prosperity as a result of the Celtic Tiger's economic boom in the wake of its 1973 EU membership has led to major changes in Ireland which is no longer traditionally a country of emigration and is receiving substantial numbers of immigrants to fill jobs.”

http://www.religiousconsultation.org/News_Tracker/Ireland_population_to_jump_to_five_million.htm

http://en.wikipedia.org/wiki/Image:Vilnius_at_Dublin.jpg

Extremely High Birth and Death Rates

http://www.biyokulule.com/February_%201990s(4).htm

http://www.islamic-relief.com/submenu/appeal/somalia_crisis.htm

Persistent Poverty and Violence