Population Pyramid

• we use population pyramid to analyze growth (or decline) of fertility, mortality, and migration in cities
• males are always on the left while females are on the right
• There are three basic shapes

The Christmas tree (developing nation)

-growth rates are slow

-high birth rate

-short life expectancy

- Like? Namibia, Bangladesh

The box (developed nation; slow growth)

-low infant mortality

-slow population growth

-long life expectancy

- Like? Sweden, USA

The cup (developed nation, negative growth)

-low birth rate

-shrinking population

-long life expectancy

-Like? Italy, Japan

Today, in class we mainly talked about the three different shapes for the population pyramid. Which i find very interesting that someone has created this to describe a countries characteristic by its population shape. We also looked at a bunch of other cities pyramid shape as well as ones that were very oddly shaped. Overall, todays class was very interesting, and I learned a lot.