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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.”.

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Unit 2 population and migration

Unit 2:Population and Migration





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



East Asia four specific areas.


South Asia four specific areas.


Southeast Asia four specific areas.


Europe four specific areas.


What is four specific areas.ecumene?


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


How do you measure population? four specific areas.


four specific areas.Population Density is the number of people occupying an area of land.”


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? high percentage of arable land but a low agricultural density?


How do you measure population change? high percentage of arable land but a low agricultural density?


high percentage of arable land but a low agricultural density?You can measure population change through the Crude Birth Rate, the Crude Death Rate, and the Natural Increase Rate.”


The high percentage of arable land but a low agricultural density?Crude Birth Rate (CBR) is the total number of live births a year for every 1,000 people alive in the society.


The high percentage of arable land but a low agricultural density?Crude Death Rate (CDR) is the total number of deathsa year for every 1,000 people alive in the society.


The high percentage of arable land but a low agricultural density?Natural Increase Rate (NIR) is the percentage by which a population grows in a year.


NIR = (Crude birth rate − Crude death rate) / 10 high percentage of arable land but a low agricultural density?


2.992% = (37.89 − 7.97) / 10 high percentage of arable land but a low agricultural density?


The high percentage of arable land but a low agricultural density?Total Fertility Rate(TFR) is the average number of children a woman will have during her childbearing years.


The high percentage of arable land but a low agricultural density?Infant Mortality Rate (IMR) is the annual number of deaths of infants under 1 year compared with total live births.


Life Expectancy high percentage of arable land but a low agricultural density?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? high percentage of arable land but a low agricultural density?


What is a population pyramid? high percentage of arable land but a low agricultural density?


“A high percentage of arable land but a low agricultural density?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.


What is a model? high percentage of arable land but a low agricultural density?


“A high percentage of arable land but a low agricultural density?model attempts toexplain or demonstrate why something exists the way it does. “


What is the demographic transition model? high percentage of arable land but a low agricultural density?


“The high percentage of arable land but a low agricultural density?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 high percentage of arable land but a low agricultural density?

  • 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 high percentage of arable land but a low agricultural density?

  • 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 high percentage of arable land but a low agricultural density?

  • 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 high percentage of arable land but a low agricultural density?

  • The CBR = CDR

  • Zero Population Growth

  • Low TFR


Stage 5 negative growth
Stage 5: Negative Growth high percentage of arable land but a low agricultural density?

  • 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? high percentage of arable land but a low agricultural density?


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

Thomas Malthus


Thomas Malthus’ Theory while population increases geometrically, food supply increases arithmetically.


Malthus supporters
Malthus Supporters: while population increases geometrically, food supply increases arithmetically.

  • 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: while population increases geometrically, food supply increases arithmetically.

  • 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 while population increases geometrically, food supply increases arithmetically.


Food is increasing more rapidly than predicted by Malthus. while population increases geometrically, food supply increases arithmetically.


Birth rates are declining. while population increases geometrically, food supply increases arithmetically.


Why are birth rates declining? while population increases geometrically, food supply increases arithmetically.


How do governments affect population? while population increases geometrically, food supply increases arithmetically.



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




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



Migration population policies??


Part 2: What is migration? population policies??


Is it cyclical periodic or migration
Is it Cyclical, Periodic, or Migration population policies??

  • 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.



population policies??Immigration is migration to a location, emigration is migration from a location.”


Part 2 why do people migrate
Part 2: Why do people migrate? population policies??


Examples of forced migration
Examples of Forced Migration: population policies??

  • The Largest: The Atlantic Slave Trade

  • British relocation of prisoners to Australia

  • US relocation of Native Americans

  • Forced Counter-migration


Trivia
Trivia: population policies??

What country were most Africans sent to?


Voluntary migration
Voluntary Migration population policies??


“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 reasons for migration, the distance of migration, and the characteristics of migrants.” 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 reasons for migration, the distance of migration, and the characteristics of migrants.”


Environmental reasons for migration, the distance of migration, and the characteristics of migrants.”

#1 Reason: Economic

Cultural

Cultural

#1 Reason: Economic

Environmental


What is distance decay? reasons for migration, the distance of migration, and the characteristics of migrants.”


reasons for migration, the distance of migration, and the characteristics of migrants.” Distance decay states that the intensity of human activity, process, or function declines as distance from its source increases.”


What is step migration? reasons for migration, the distance of migration, and the characteristics of migrants.”


reasons for migration, the distance of migration, and the characteristics of migrants.” Step Migration is the phenomenon in which migration happens in stages.”


What is an intervening obstacle?? reasons for migration, the distance of migration, and the characteristics of migrants.”


reasons for migration, the distance of migration, and the characteristics of migrants.” An intervening obstacle is an environmental or cultural feature that hinders migration.”


Migration transition model
Migration Transition Model reasons for migration, the distance of migration, and the characteristics of migrants.”


Part 3 characteristics of migrants
Part 3: Characteristics of Migrants reasons for migration, the distance of migration, and the characteristics of migrants.”


Part 3 where do people migrate
Part 3: Where do people migrate? reasons for migration, the distance of migration, and the characteristics of migrants.”


Part 1 migration history
Part 1: Migration History reasons for migration, the distance of migration, and the characteristics of migrants.”


Global Migration Time-Line reasons for migration, the distance of migration, and the characteristics of migrants.”


Part 2 world migration patterns
Part 2: World Migration Patterns reasons for migration, the distance of migration, and the characteristics of migrants.”


Part 3 us external migration patterns
Part 3: US External Migration Patterns reasons for migration, the distance of migration, and the characteristics of migrants.”


Us immigration timeline
US Immigration Timeline: reasons for migration, the distance of migration, and the characteristics of migrants.”


Part 4 us internal migration patterns
Part reasons for migration, the distance of migration, and the characteristics of migrants.” 4: US Internal Migration Patterns


Us internal immigration timeline
US Internal Immigration Timeline: reasons for migration, the distance of migration, and the characteristics of migrants.”


Center of US Population reasons for migration, the distance of migration, and the characteristics of migrants.”


Top ten fastest growing cities
Top Ten Fastest Growing Cities reasons for migration, the distance of migration, and the characteristics of migrants.”


Voluntary african american migrations
Voluntary African-American Migrations reasons for migration, the distance of migration, and the characteristics of migrants.”

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 reasons for migration, the distance of migration, and the characteristics of migrants.”


Part 6 obstacles with migration
Part reasons for migration, the distance of migration, and the characteristics of migrants.” 6: Obstacles with Migration


Areas of refugees
Areas of Refugees reasons for migration, the distance of migration, and the characteristics of migrants.”


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