Unit 2: Population & Migration Test Review

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Unit 2 Population Migration Test Review
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IV. OVERPOPULATION Occurs when the resources
available cant meet the needs of the people.
The carrying capacity (the number of people a
region or country can support) has been exceeded.
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STAGES OF POPULATION GROWTH
STAGE I. NO GROWTH
Population grew very slowly. Many children are
born, but many die in childhood. Most people are
farmers. Plagues and famine a part of life.
Growth patterns until the 1700s.
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Stage II. RAPID GROWTH Hygiene and medical
technology advances quickly. Many babies are
still born, but only a few die.
Population increases dramatically in wealthy
countries.
Population eventually explodes in poor countries
thanks to improved medical care
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STAGE III NO GROWTH
Population begins to level off. Fewer children
being born, thus, smaller families. As countries
(or families) become wealthier, they have fewer
children.
The USA is in stage 3.
Population grows slowly due to immigration. More
deaths than births in the native population.
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STAGE IV NEGATIVE OR STAGNANT GROWTH
Current population is not being replaced. More
people are dying than are being born.
Most couples have one or no children.
European Union Flag
This is the situation Europe finds itself in.
Most countries are in Stage IV. In some
countries people are paid a bonus when they have
children. Abortion illegal in certain countries.
Italys population is dropping.
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What does it look like?
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Demographic Transition Theory

• Demographic Transition Theory in Action

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Malthus Theory

• Exponential Growth vs. Linear Growth
• Exponential Growth is the idea that people will
  grow at a geometric rate
• Food is represented as linear growth
• Even with new technology, farmland is limited and
  does not reproduce itself as people do.

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Interpreting a Population Pyramid

• Remember that a population pyramid is basically a
  bar graph turned on its side. Each line is
  showing you what percentage of the population is
  a certain age.
• Examine the title and the type of data presented.
  (ex. Age breakup, numbers listed below,
  male-female notation.)
• True pyramids are developing countries. The
  majority of the population is younger and not
  many people live to an old age. Developed
  countries are more rectangular the population is
  spread more equally through the age groups.

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How to interpret population pyramids

• There main types of pyramids
• Rapid growth
• Slow growth
• Negative growth

Shape of rapid growth
Shape of Slow growth
Shape of negative growth
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High, Slow Negative Growth

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Population Patterns

• Race vs. Ethnicity

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Gravity Model Ravensteins Laws
Adults move most.
Counter Flow Migration 1 IN 1 OUT
Step Migration
Rural to Urban
Short Distances due to Distance Decay
Young people move internationally.
Longer Distances move from rural to urban
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Net Migration

• Net Migration IN Migration OUT Migration
• IN Migration more people are coming into an area
  than they are leaving an area
• (More Immigrants than Emigrants)
• What happens to the population?
• OUT Migration more people are leaving an area
  than coming into an area
• (More Emigrants than Immigrants)
• What happens to the population?

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Types of Migration

• 1. Primitive Migration
• 2. Forced Migration
• 3. Impelled/Imposed Migration
• 4. Free/Voluntary Migration
• 5. Mass Migration

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Migration Selectivity

• Not everyone migrates to a different place.
• Migration Selectivity puts people into categories
  that are most likely to move somewhere
• AGE younger people between the ages of 18-30 are
  most likely to move
• EDUCATION People with higher education are most
  likely to make long-distance moves
• KINSHIP FRIENDS People will follow families
  members that have moved to another area for a
  better life. CHAIN MIGRATION helped create
  cultural neighborhoods.

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US Migration Waves

• WAVE 1 1840s, Northern and Western European
• WAVE 2 1840s-1900s, German and Northern European
  
• WAVE 3 1900s-present, South European, Eastern
  European, Asian, Latin Americans

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Great Migrations In History

• Irish Potato Famine
• Three Gorges Dam Migration
• Hurricane Katrina Refugees
• Afghanistan Refugees
• Partition of India
• Creation of Israel
• Palestinian Migration
• African America Migration to the North
• Dust Bowl Migration

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Activity Space

• Activity Space area where a person moves around
  to do their daily routine throughout the day
• Types of Trips People Take In Their Activity
  Space Is Determined By
• 1. Age Group
• 2. Ability to Travel
• 3. Opportunities Awareness
  Space

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Space Time Prism

• All people live within a space time prism that
  sets limits on their activities. There time and
  space are limited by their ability to move
  around.
• Example if you dont have a car, you can not
  get a long distance job.

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Space Time Prism for Ms. Wahowski
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