Population - distribution and structure
World population density
Mexico population distribution
Why is population distributed unevely?
World Population & Income 1988
World food production
In addition to geographic distribution . . . Demographers also display the structural variation within particular subgroups of a population.
Population pyramids
Population pyramids show a composite of the age and sex of a given population.
Population projections
Population dynamics and processes
How do people enter and leave a given population?
Births and Deaths
Fertility
Total fertility rate (TFR) is the average number of children a woman will have between 15-49 years old.
Natural Increase
Births - deaths = natural increase
Doubling Time
Life expectancy:
The average number of years an infant newborn is expected to live.
Infant mortality
Access to drinking water.
Over 65 year olds
Dependency ratio:
measure of the impact of the young and old on the more economically productive
members of the population
Economically active men and women over 60. In some parts of the world, men and women must continue working as senior citizens.
Discussion:
Why do parents choose to have children?