Unit 2 population and migration
This presentation is the property of its rightful owner.
Sponsored Links
1 / 118

Unit 2: Population and Migration PowerPoint PPT Presentation


  • 83 Views
  • Uploaded on
  • Presentation posted in: General

Unit 2: Population and Migration. Population. Part 1: Where is everyone?. What is population distribution?. “ Population distributions are descriptions of locations on the Earth’s surface where individuals or groups live.”.

Download Presentation

Unit 2: Population and Migration

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Unit 2 population and migration

Unit 2:Population and Migration


Population

Population


Part 1 where is everyone

Part 1: Where is everyone?


Unit 2 population and migration

What is population distribution?


Unit 2 population and migration

“Population distributions are descriptions of locations on the Earth’s surface where individuals or groups live.”


Unit 2 population and migration

Two-thirds of the World’s Population is concentrated in four specific areas.


Unit 2 population and migration

East Asia


Unit 2 population and migration

South Asia


Unit 2 population and migration

Southeast Asia


Unit 2 population and migration

Europe


Unit 2 population and migration

What is ecumene?


Unit 2 population and migration

“Ecumene is the portion of the Earth’s surface occupied by permanent human settlement.”


Unit 2 population and migration

How do you measure population?


Unit 2 population and migration

“Population Density is the number of people occupying an area of land.”


Unit 2 population and migration

What inferences can you make by looking at countries with a high percentage of arable land but a low agricultural density?

What inferences can you make about a country with a high physiological density but a low arithmetic density?


Part 2 where has the world s population increased

Part 2: Where has the World’s population increased?


Unit 2 population and migration

How do you measure population change?


Unit 2 population and migration

“You can measure population change through the Crude Birth Rate, the Crude Death Rate, and the Natural Increase Rate.”


Unit 2 population and migration

The Crude Birth Rate (CBR) is the total number of live births a year for every 1,000 people alive in the society.


Unit 2 population and migration

The Crude Death Rate (CDR) is the total number of deathsa year for every 1,000 people alive in the society.


Unit 2 population and migration

The Natural Increase Rate (NIR) is the percentage by which a population grows in a year.


Unit 2 population and migration

NIR = (Crude birth rate − Crude death rate) / 10


Unit 2 population and migration

2.992% = (37.89 − 7.97) / 10


Unit 2 population and migration

The Total Fertility Rate(TFR) is the average number of children a woman will have during her childbearing years.


Unit 2 population and migration

The Infant Mortality Rate (IMR) is the annual number of deaths of infants under 1 year compared with total live births.


Unit 2 population and migration

Life Expectancy measures the average number of years a newborn can expect to live at current morbidity levels.


Part 3 why is population increasing at different rates

Part 3: Why is population increasing at different rates?


Unit 2 population and migration

What is a population pyramid?


Unit 2 population and migration

“A population pyramid is a graphical illustration that shows the distribution of various age groups as well as the sex ratio, the number of males per hundred females and the dependency ratio, the number of people who are too old or too young to work.


Unit 2 population and migration

What is a model?


Unit 2 population and migration

“A model attempts toexplain or demonstrate why something exists the way it does. “


Unit 2 population and migration

What is the demographic transition model?


Unit 2 population and migration

“The demographic transition model explains the transition from high birth and death rates to low birth and death rates as a country develops from a pre-industrial to an industrialized economic system.


Stage 1 low growth

Stage 1: Low Growth

  • People depended on hunting and gathering for food.

  • Most of human history spent during this stage.

  • The NIR is essentially zero.

  • There is no country still in stage 1.


Stage 2 high growth

Stage 2: High Growth

  • Brought about by the Industrial Revolution.

  • CDR Plummets while the CBR remains the same as in stage 1.

  • Allowed to spread to LDRs by the medical revolution (20th century)


Stage 3 moderate growth

Stage 3: Moderate Growth

  • Brought about by cultural changes.

  • Characterized by a sudden drop in the CBR.

  • There is still growth but not as fast as in Stage 2


Stage 3 moderate growth1

Stage 3: Moderate Growth

  • The CBR = CDR

  • Zero Population Growth

  • Low TFR


Stage 5 negative growth

Stage 5: Negative Growth

  • Though not official, some say that there is a Stage Five.

  • In stage five, CDR is greater than CBR largely because of an aging population.

  • The NIR is below Zero.

  • Much of Europe is entering this stage.


Part 4 overpopulation

Part 4: Overpopulation?


Unit 2 population and migration

My theory is that population is growing too rapidly because while population increases geometrically, food supply increases arithmetically.

Thomas Malthus


Unit 2 population and migration

Thomas Malthus’ Theory


Malthus supporters

Malthus Supporters:

  • Malthus’ theory did not take into account the rapid growth of LDCs.

  • World population is not just stripping food but a lot of other resources as well.


Malthus critics

Malthus Critics:

  • His theory is based on a belief that the world’s supply is fixed rather than expanding.

  • A larger population could stimulate economic growth to produce greater resources.


The reality of population growth

The Reality of Population Growth


Unit 2 population and migration

Food is increasing more rapidly than predicted by Malthus.


Unit 2 population and migration

Birth rates are declining.


Unit 2 population and migration

Why are birth rates declining?


Unit 2 population and migration

How do governments affect population?


Unit 2 population and migration

What is the difference between expansive and restrictive population policies??


Unit 2 population and migration

“Expansive population policies encourage large families. Restrictive population policies seek to reduce the rate of natural increase.”


Unit 2 population and migration

How does disease affect population?


Unit 2 population and migration

What is the Epidemiologic Transition Model?


Unit 2 population and migration

“The Epidemiologic Transition Model focuses on distinctive causes of death in each stage of the demographic transition.”


Unit 2 population and migration

What is the largest epidemic of our time?


Unit 2 population and migration

Migration


Unit 2 population and migration

Part 2: What is migration?


Is it cyclical periodic or migration

Is it Cyclical, Periodic, or Migration

  • Travelling from your house to school each day.

  • A rancher moving his herd from season to season.

  • Taking a vacation in the summer.

  • Moving from Louisiana to California.

  • You attending Southeastern Louisiana University.

  • You attending Harvard.


Unit 2 population and migration

What is the difference between emigration and immigration?


Unit 2 population and migration

“Immigration is migration to a location, emigration is migration from a location.”


Part 2 why do people migrate

Part 2: Why do people migrate?


Examples of forced migration

Examples of Forced Migration:

  • The Largest: The Atlantic Slave Trade

  • British relocation of prisoners to Australia

  • US relocation of Native Americans

  • Forced Counter-migration


Trivia

Trivia:

What country were most Africans sent to?


Voluntary migration

Voluntary Migration


Unit 2 population and migration

“I developed 11 laws of migration. These laws examine the reasons for migration, the distance of migration, and the characteristics of migrants.”

E.G. Ravenstein


Ravenstein s laws or model

Ravenstein’s Laws (or MODEL)

  • Every migration flow generates a return or counter-migration.

  • The majority of migrants move a short distance.

  • Migrants who move longer distances tend to choose big-city destinations.

  • Urban residents are less migratory than inhabitants of rural areas.

  • Families are less likely to make international moves than young adults.

  • There exists an inverse relationship between source and destination (The Gravity Model).


Reasons for migrating

Reasons for Migrating


Unit 2 population and migration

Environmental

#1 Reason: Economic

Cultural

Cultural

#1 Reason: Economic

Environmental


Unit 2 population and migration

What is distance decay?


Unit 2 population and migration

“Distance decay states that the intensity of human activity, process, or function declines as distance from its source increases.”


Unit 2 population and migration

What is step migration?


Unit 2 population and migration

“Step Migration is the phenomenon in which migration happens in stages.”


Unit 2 population and migration

What is an intervening obstacle??


Unit 2 population and migration

“An intervening obstacle is an environmental or cultural feature that hinders migration.”


Migration transition model

Migration Transition Model


Part 3 characteristics of migrants

Part 3: Characteristics of Migrants


Part 3 where do people migrate

Part 3: Where do people migrate?


Part 1 migration history

Part 1: Migration History


Unit 2 population and migration

Global Migration Time-Line


Part 2 world migration patterns

Part 2: World Migration Patterns


Part 3 us external migration patterns

Part 3: US External Migration Patterns


Us immigration timeline

US Immigration Timeline:


Part 4 us internal migration patterns

Part 4: US Internal Migration Patterns


Us internal immigration timeline

US Internal Immigration Timeline:


Unit 2 population and migration

Center of US Population


Top ten fastest growing cities

Top Ten Fastest Growing Cities


Voluntary african american migrations

Voluntary African-American Migrations

Blacks moved to Industrial Belt (i.e., Chicago, New York, Detroit) and Los Angeles during World Wars (labor shortages).


Part 5 regional internal migration patterns

Part 5: Regional Internal Migration Patterns


Part 6 obstacles with migration

Part 6: Obstacles with Migration


Areas of refugees

Areas of Refugees


  • Login