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Agricultural Density
number of farmers / aerable land
Arithmetic Density
Total number of people in a society / total land area
Census
Complete enumeration of everyone in a population
Crude Birth
Number of live births per 1000 people
Crude Death Rate
Number of deaths per 1000 people
Demographic Transition
5 stage model; The process of change within a society from high cbr and cdr to low cdr and cbr
Demography
Study of population statistics
Dependency Ration
number of people over 64 or below 15 to ones that are not
Doubling time
Time it takes to double population
ecuemene
portion earth occupied by permanent human settlements
Epidemic Transition Model
Defines the different types of epidemics that occur in each stage
Internally displaced person
Has been forced to migrate for similar political reasons as a refugee but has not migrated across an international border
Guest Worker
allow immigrants to temporarily work, to obtain jobs in countries
Brain drain:
The emigration of highly trained or talented individuals from a country.
Brain gain
The immigration of highly trained or talented individuals into a country
Chain migration
Migration of people to a specific location because relatives or members of the same nationality previously migrated there.
Circulation
Repetitive movement of people among a network of places.
Counterurbanization
Net migration from urban to rural areas.
Epidemiology
The branch of medicine dealing with incidence and prevalence of disease in populations.
Forced migration
Migration in which people are forced or compelled to leave their home region.
Infant mortality rate
The total number of deaths in a year among infants under one year old for every 1,000 live births in a society
Internal migration
Permanent movement within a particular country.
Interregional Migration
Migration between regions in a country.
Intraregional Migration
Migration within a region of a country
Intervening obstacle
An environmental or cultural feature that hinders migration
Life Expectancy
The average number of years an individual can be expected to live, based on current mortality statistics.
Medical revolution:
Medical and public health improvements that led to lower mortality rates.
Migration Transition
Change in migration patterns in a society following demographic tranistion
Mobility
All types of movement from one location to another
Natural Increase rate
Crude birth rate minus crude death rate
Net migration
The difference between immigration and emigration for an area
Overpopulation
The number of people exceeding the carrying capacity of a region
Pandemic
Disease spread across countries/continents
Physiological Density
The number of people per unit of area of arable land
Population Pyramid
Graph showing the age and sex distribution of a population
Quotas
Limit on the number of people who can immigrate from a certain location
REfugees
People who migrate to escape persecution, war, or natural disaster
Sex Ration
The number of males to 100 femals in the population
Total fertility rate
The average number of children born to a woman over her lifetime
Unauthorized immigrants
People who enter a country without legal permission
Voluntary migration
Migration by choice witout compulsion
Zero population growth
A population in equilibrium achieved through low fertility and mortality rates
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