HUMAN POPULATIONS Demography the study of populations most

HUMAN POPULATIONS • Demography – the study of populations; most often human populations • Also study factors that affect population growth, such as economics and social structure. • Developed vs. Developing countries

HUMAN POPULATION OVER TIME • After growing slowly for thousands of years, the human population grew rapidly in the 1800 s. • At that point, human population entered a period of exponential growth.

POPULATION PYRAMIDS • Population Pyramids. These are double-sided bar graphs used to graph population age structure. • Age structure – the distribution of ages and genders in a specific population at a certain time.

ITALY • Growth Rate? • BR = DR; no growth • Age Structure? • The population of children and adults is roughly equal • Standard of Living? • High; rich country • Developed or Developing? • Developed

INDIA • Growth Rate? • BR > DR; positive • Age Structure? • 0 -4 is the largest pop; males and females are equal • Standard of Living? • Low; poor country • Developed or Developing? • Developing

JAPAN • Growth Rate? • BR < DR; negative • Age Structure? • 80+ is the largest and 0 -4 is the smallest; Males and females are equal • Standard of Living? • High; Rich country • Developed or Developing? • Developed

AGE STRUCTURE PRACTICE

AGE STRUCTURE PRACTICE