AP HUG Unit 2 Vocab

unit 2

Agricultural Density

The ratio of the number of farmers in a given area to the total amount of arable land in that area.

Arithmetic Density

The total number of people in an area divided by the total land area.

Carrying Capacity

The number of people an area of land can reasonably support; often used in terms of the entire earth and world population.

Census

A complete enumeration of a population.

Child Mortality Rate

A figure that describes the number of children that die between the first and fifth years of their lives in a given population.

Contraception

A method which prevents conception or birth.

Crude Death Rate

The number of deaths per 1,000 people per year.

Crude Birth Rate

The number of births per 1,000 people per year.

NIR formula

The global difference between births and deaths.

DTM

A model describing the change in CBR, CDR, and overall population growth through the various stages of economic and scientific development.

Demography

The scientific study of human populations.

Dependency Ratio

The ratio of children under 14 and elders over 65 to the number of 15-64 year olds; it is a rough approximation of the number of nonworking people being supported by a society.

Doubling Time

The number of years needed to double a population, assuming a constant rate of natural increase.

Ecumene

The portion of Earth's surface occupied by permanent human settlement.

Non-Ecumene

The very sparsely habited, uninhabited or uninhabitable area of the world.

Epidemiological Transition

Characteristic shift in disease pattern of a population as mortality falls. Acute, infectious diseases are reduced while chronic degenerative diseases increase

infant mortality rate

The annual number of deaths of infants under one year of age per 1000 live births.

Life Expectancy

A figure indicating how long, on average, a person may be expected to live. Normally expressed in the context of a particular state.

Thomas Malthus

Eighteenth-century English intellectual who warned that population growth threatened future generations because, in his view, population growth grew exponentially, while agricultural production only grew linearly.

Pro-natalism

A policy or general attitude that encourages population growth, often in the face of limited resources.

Anti-natalism

A policy or general attitude involving official policies designed to discourage births

Natural Increase Rate

The percentage at which the population of a region grows in a year.

Neomalthusians

A group who built on Malthus' theory and suggested that people wouldn't just starve for lack of food, but would have wars about food and other scarce resources.

Overpopulation

What happens when the number of a people in an area exceeds the capacity of the environment to support life at a decent standard of living.

Physiological density

The number of people per unit of area of arable land.

Population Pyramid

A bar graph representing the distribution of the population of an area by age and sex.

Replacement Fertility

The number of children a couple must have to replace themselves (2.1 developed, 2.7 developing).

Sex Ratio

The number of males per 100 females in the population.

Total Fertility Rate

The total number of children an average woman in an area has.

Zero Population Growth

What occurs when the total fertility rate of a population is replacement rate.

Asylum Seeker

A refugee who seeks to migrate permanently to another country.

Internally Displaced Person

Someone who is displaced within their own country due to war, political turmoil, or persecution.

Brain Drain

Large-scale emigration by talented people

Brain Gain

Large-scale immigration by talented people

Chain Migration

Migration of people to a specific location because relatives, friends, or members of the same nationality previously migrated there

Circulation

Short-term, repetitive, or cyclical movements that recur on a regular basis.

Diaspora

Describes the communities of a given ethnic group living outside their homeland.

Emigration

Migration from a place (especially migration from your native country in order to settle in another)

Immigration

Migration to a place

Forced Migration

Human migration in which the migrants have no choice but to relocate.

Voluntary Migration

Human migration in which the migrants relocate voluntarily.

Guest Worker

Authorized immigrant who has a work visa, usually short term.

Internal Migration

Movement within a particular country.

International Migration

Movement between countries.

Interregional Migration

Movement between regions within a particular country.

Intraregional Migration

Movement within a given region within a particular country.

Intervening Obstacle

An environmental, political or cultural feature of the landscape that hinders migration.

Intervening Opportunity

The presence of a nearer opportunity that greatly diminishes the attractiveness of sites farther away to migrants.

Migration Transition

Change in the migration pattern in a society that results from industrialization, population growth, and other social and economic changes that also produce the demographic transition.

Migration

Form of relocation diffusion involving a move to a new location.

Mobility

All types of movement from one location to another.

Net Migration

The difference between the level of immigration and the level of emigration.

Push Factors

Factors causing people to leave a location and migrate to a new area.

Pull Factors

A factor that draws or attracts people to a location.

Quota

A limit placed on the quantity of people that can migrate from a particular region.

Ravenstein's Laws

Laws dealing with migration patterns: 1. Most migration is over a short distance. 2. Migration occurs in steps. 3. Long-range migrants usually move to urban areas. 4. Each migration produces a movement in the opposite direction (although not necessarily of the same volume). 5. Rural dwellers are more migratory than urban dwellers. 6. Within their own country females are more migratory than males, but males are more migratory over long distances. 7. Most migrants are young adults. 8. Large towns grow more by migration than by natural increase. 9. Migration increases with economic development. 10. Migration is mostly due to economic causes.

Refugee

A person who has been forced to leave their country in order to escape war, persecution, or political disorder.

Remittance

Money a migrant sends back to family and friends in their home countries, often in cash, forming an important part of the economy in many poorer countries.

Urbanization

A migration pattern which shows an increase in the percentage and in the number of people living in urban settlements.

Suburbanization

A migration pattern which shows an increase in the percentage and in the number of people living in the urban-country fringe.

Counter-urbanization

Net migration from urban to rural areas in more developed countries.

forced migration

movement of people due to circumstances beyond their control, such as war, persecution, natural disasters, or environmental degradation.

voluntary migration

the movement of people from one place to another by their own choice, often seeking better economic, social, or environmental opportunities

net migration

the difference between the number of people who enter a country (immigrants) and the number who leave (emigrants)

remittance

money sent from one country to another, typically by migrants to their home country to support their families or communities.

step migration

a gradual movement from one location to another through multiple stages or steps