ap human geography. thomas malthus/overpopulation believed population would outgrow food supply....

MigrationAP Human Geography

2.3/2.4 Review/ Key Ideas Thomas Malthus/Overpopulation

• Believed population would outgrow food supply.• Right about population, wrong about food.

Declining Birth Rates• Economic development• Contraceptives

Epidemiologic Transition• Causes of death in each stage of DTM.• Stage 1 and 2: Pestilence, disease, famine• Stage 3 and 4: Chronic diseases (cancer, heart

disease)

What is migration? Movement of a group of objects, organisms,

people, or animals (general definition)• Birds flying south for the winter• College students returning to campus in the fall

A permanent move of people to a new location (AP HG definition)• Leaving a rural area for an urban area (Great

Migration)• Leaving an LDC for a MDC (Mexico to U.S.)

Emigration- migration from a location Immigration- migration to a location

Why do people migrate? Economic motives

• Jobs, jobs, jobs! (LDC’s to MDC’s, rural to urban) Cultural motives

• Political instability/ persecution (genocide in Sudan, Pilgrims)

• Slavery (Africa to Americas) Environmental motives

• Lack/ abundance of resources (drought in Chad, Florida)

• Natural disasters (Hurricane Katrina)

Global Migration Patterns

Push vs. Pull FactorsPUSH FACTORS PULL FACTORS

Reasons that people leave a certain place.

Ex.• No jobs• War/ violence• Persecution• Natural disasters

Reasons that people are attracted to a new place.

Ex. • Jobs• Peace• Stability• Education• Natural beauty

Forced vs. Voluntary Migration

FORCED VOLUNTARY

Compelled to move by cultural factors.• War• Exile• Persecution• Slavery

Choosing to move for economic improvement.• Jobs• Jobs • Jobs

Forced Migration (refugees)

Types of MigrationINTER-NATIONAL MIGRATION INTERNAL MIGRATION

From one country to another.

Usually from LDC to MDC.• Mexico to U.S.A.• Turkey to Germany • Guatemala to

Mexico

Within a country.• Illinois to California• Michigan to Chicago• Chicago to Harvey

Latin America to the United States

Types of Internal MigrationINTER-REGIONAL INTRA-REGIONAL

From one region to another in the same country• Midwest to the

South

Within a region.• Michigan to Illinois

• City to suburbs

Inter-regional Migration in the U.S.

Intra-regional Migration

Net Migration

Immigration Cartogram