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Bellringer. What type of thematic map is this? What is the title of this map? What is the median age of PA? Name one state that is similar to PA and one state that is different What can this map help us to determine?. Agenda. BR Review Population. Your turn. Partners

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  • What type of thematic map is this?
  • What is the title of this map?
  • What is the median age of PA? Name one state that is similar to PA and one state that is different
  • What can this map help us to determine?
  • BR
  • Review
  • Population
your turn
Your turn
  • Partners
  • 2 columns- read chapter 4 pages 70-74
main idea

Main Idea:

Population growth varies from country to country and is influenced by cultural ideas, migration, and levels of development

the numbers
The Numbers
  • What is population?
  • Collection of people living in a given geographic area
  • Demography: study of populations through statistics
  • 1000-1800- slow increase in pop
  • 1800-1950- HUGE increase- pop doubled
  • Today: 6.5 billion
  • 2050:
population growth

Population Growth

Terms and Trends

demographic transition
Demographic Transition
  • Birthrate: number of births/year/1000
  • Death rate: number of deaths/year/1000
birth rates
Birth Rates

Crude Birth Rate - Number of live births per year per thousand people in the populations

Total Fertility Rate - Number of children a woman will have in her lifetime

Infant Mortality Rate - the number of infants who are born alive, but die before one year of age

birth rate
Birth rate
  • List two countries with the highest birth rates
  • List 2 countries with the lowest birth rates
  • What could affect this?
  • Get out your homework (rest of the Population notes)
  • How is birthrate determined? What are 2 factors that affect birthrate?
  • BR- homework
  • Discuss map test
  • Next 5 countries
  • Death rates, life expectancy, demographic transition model
factors affecting birth rates
Factors Affecting Birth Rates
  • Government Policies
  • Abortion Rates
  • Age-Sex structure
  • Female Education
  • Economic Prosperity
  • Infant Mortality Rate
  • Typical age of marriage
  • What does this map portray?
  • One high country; one low country. Surprises? Trends?
  • BR
  • Population
  • Culture
fertility rate
Fertility Rate
  • List the country with the highest fertility rate
  • List 2 countries with the lowest fertility rates
  • What continent has the highest fertility rate? The lowest?
  • Why?
infant mortality rate
Infant Mortality Rate
  • 2 countries with the highest
  • 2 countries with the lowest
  • Trends between fertility rate and infant mortality rate?
  • Why?
death rates
Death Rates
  • Death rates- number of death per year/1000 people
factors affecting death rates
Factors Affecting Death Rates
  • Age
  • Nutrition levels
  • Standards of diet and housing
  • Access to clean drinking water
  • Hygiene levels
  • Levels of infectious diseases
  • Levels of violent crime
  • Conflicts
  • Number of doctors
  • Availability and access to food
  • Better healthcare
  • Better living conditions
life expectancy
Life Expectancy
  • Average number of years a human has before death
life expectancy1
Life Expectancy
  • Continent with the highest life expectancy?
  • Continent with the lowest life expectancy?
natural increase
Natural Increase
  • Natural Increase - population growth measured as the excess of live births over deaths.
  • Trends in the birth and death rates can be shown with the Demographic Transition Model
  • First used to show declining birth and death rates due to industrialization (in W. Europe)
population growth1
Population Growth
  • Doubling Time- The period of time required for a quantity to double in size or value
    • The lower the doubling time the faster the population
    • Current World Doubling Time- 51 years
  • Doubling time in developing countries: 25 years
  • Doubling time in developed countries: can be more than 300 years
population doubling times
Population Doubling Times
  • 2 countries with the highest doubling times (1 outside of Africa)
  • 2 with the lowest
population growth2
Population Growth
  • Population Explosion - The rapid growth of the world’s human population during the past 100 years, including shorter doubling times and accelerating rates of increase.
zero population growth
Zero Population Growth
  • Most industrialized and technologically developed countries have transitioned into stage 3 or 4
  • They went from having high birth and death rates to low birth and death rates
  • When birthrate and death rate are equal = zero population growth
problems with positive growth
Problems with positive growth
  • Need to meet demand for food
  • Need to replenish resources (water, housing)
  • Uneven distribution of population (throughout the world and by age)
negative population growth and problems
Negative Population Growth and Problems
  • When death rate exceeds birth rate
  • 2 countries: Hungary and Germany
  • Who is going to work?
population distribution and movement

Population Distribution and Movement

World population distribution is uneven and is influenced by migration and the Earth’s physical geography

population distribution
Population Distribution
  • Pattern of where people settle is uneven
  • Related to geography
where people live
Where people live?
  • Almost 90% of people live North of the Equator
  • > ½ of people live on 5% of the land
  • Most people live close to sea level
  • 2/3 of people live 300 miles or less from an ocean
where people live1
Where people live
  • 30% of Earth is land but we can’t live on mountain peaks, deserts and tundra so people live on a small portion of the land (about 1/3)
  • People live where it is arable, where water is available and climate isn’t harsh and extreme
  • 2 most arable countries
  • 2 least arable countries
  • What two continents are most populated?
  • Where in these countries do most people live?
  • Urban/metropolitan areas
  • Where are most of those located?
population density
Population Density
  • Population density- how crowded a country or region is (number of people/square mile)
  • Divide total population by total land area
  • Densities don’t always paint an accurate picture
  • It includes all the land in a country- even unlivable land (deserts, mountains, etc)
  • What does the Demographic Transition Model show? What stage is the US at? What are some characteristics?
  • Based upon what we discussed yesterday, identify 3 characteristics of where most of the world’s population lives.
  • BR
  • Homework
  • Immigration vs. Emigration
  • Culture
  • Ebola fun
  • Religion
types of movement
Types of Movement
  • Circulation
    • Short term movement
    • Think of an example of circulation in your own life
      • Why do you do this?
      • Why do you do it a certain way?
types of movement1
Types of Movement
  • Migration
    • Permanent Movement
    • Have you ever moved somewhere permanently?
      • If so why?
      • Why there, why then, for how long?
emigration immigration
When you leave a place

Ex. Two years ago, I emigrated from Ireland.

When you come to a place

Two years ago, I immigrated to the United States.

Emigration Immigration
why do people migrate
Why do people migrate?
  • What does it mean to push someone?
  • What does it mean to pull someone?
push factors
Push Factors
  • Push factors are forceful factors which relates to the place from which the person is migrating
  • Something “Pushes” you from a place

What are some push factors that would make you want to leave York County after graduation?

push factors1
Push Factors
  • Types of Push Factors
    • Economic
      • Dealing with scarce resources such as money
      • Examples: Loss of jobs, Increase in cost of living, Unstable currency, lack of resources in the area
    • Cultural/Political
      • Religious intolerance, war, crime, education, lack of social networks, forced migration, governmental change, draft
push factors2
Push Factors
  • Environmental
    • Climate change, evacuation for storms, drought, blights, flooding, disease
pull factors
Pull Factors
  • Pull factors are what draws people to a new location
  • Something “pulls” them to a place

What are some pull factors for York County?

What encourages people to come here?

pull factors1
Pull Factors
  • Types
    • Economic
      • Job opportunities, cheaper housing, markets for businesses, lower cost of living, entrepreneurial opportunities, lower taxes
pull factors2
Pull Factors
  • Cultural/Political
    • Religious freedom, family, friends, safety, good education, governmental stability, individual rights
pull factors3
Pull Factors
  • Environmental
    • Available resources, arable land, climate, safety
people who move longer distances move to cities
People who move longer distances move to cities
  • Most rural to urban
  • What do cities have to offer?
    • Jobs, culture, opportunities for education, finding a spouse
  • Also think immigration to the United States
    • Cities generally have a large immigrant population
    • Urbanization = growth of cities