Presentation on theme: "Population Geography. Demography -statistical study of human populations Demographers study pop. patterns & trends Use these statistics to predict future."— Presentation transcript:
Why is the world’s population so unevenly distributed? People tend to live in areas that are favorable to settlement 90% live in N. Hemisphere- 2/3 in mid- latitudes Many cluster on fertile plains, near water. What areas would people avoid?
Top 10 Most Populated Countries 1.China 2.India 3.U.S. 4.Indonesia 5.Brazil 6. Pakistan 7.Russia 8.Bangladesh 9.Nigeria 10.Japan
Population Change The # of people in any place is the result of 3 major factors 1.Birthrate -# of births each year for every 1,000 people in an area 2.Death Rate -total # of deaths each year for every 1,000
3.Migration -the process of moving from one place to live in another. a. Emigrants -People who leave a country to live somewhere else b. Immigrants -People who come to a new country to live.
Geographers study migration by looking at push & pull factors 1.Push factor -things that make people leave a location (become an emigrant) 2.Pull factors -things that attract you to a new location (become an immigrant)
Push Factors Lack of jobs Discrimination Lack of religious freedom War Famine Natural Disasters Unpleasant climate
Refugees -People who are forced to leave their homes because of war or political unrest. – Ex: Albert Einstein – a Jew who fled Germany during the Holocaust.
Pull Factors Jobs Political Freedom Religious Freedom Education Reunite w/ Family Good Climate
Population Pyramids Shows the age & sex distribution of a population Shows the history of a country’s population growth—Ex. Baby Boom Generation in U.S.
Country’s pop. Pyramid can show 1 of 3 types of growth 1.Rapid growth-wide at the base (Ex: Haiti) …looks like a true pyramid 2.Slow growth- straight up and down or a little wider at base than top (Ex: US) 3.Negative growth-broader at top than bottom (Ex: Germany)
Brainstorming Reasons why some countries have high birth rates? (Have lots of children?) Reasons for high death rates? Reasons why some countries have low death rates? (Have few or no children?) Reasons for low death rates?
Stages of Population Growth Countries experience three stages of population growth as their economies develop. *Stage One: Birthrate and death rate are equally high *Stage Two: Birthrate remains high while the death rate declines *Stage Three: Birthrate and death rate are equally low