Unit 2 Vocab Flashcards
the total number of farmers per unit of arable land
agricultural density
Describing attitudes or policies that discourage childbearing as a means of limiting population growth
antinatalist
the total number of people per unit area of land; also called crude density
arithmetic density
the right to protection
asylum
the loss of trained or educated people to the lure of work in another - often richer - country
brain drain
the maximum population size an environment can sustain
carrying capacity
type of migration in which people move to a location because others from their community have previously migrated there
chain migration
Migration pattern in which migrant workers move back and forth between their country of origin and the destination country where they work temporary jobs
circular migration
the number of births in a given year per 1,000 people in a given population
crude birth rate (CBR)
The number of deaths in a given year per 1,000 people in a given environment
crude death rate (CDR)
a model that represents shifts in the growth of the world’s populations, based on population trends related to birth rate and death rate
demographic transition model (DTM)
The number of people in a dependent age group (under age 15 or age 65 and older) divided by the number of people in the working age group (ages 15 to 64) multiplied by 100
dependency ratio
a principle stating that the farther away one thing is from another, the less interaction the two things will have
Distance decay
The number of years in which a population growing at a certain rate would double
doubling time
Movement away from a location
emigration
A model that describes the changes in fertility, mortality, life expectancy, and population age distribution, largely as a result of changes in causes of death
epidemiological transition model (ETM)
type of migration in which people are compelled to move by economic, political, environmental, or cultural factors
forced migration
a concept that states that the longer a journey is, the more time, effort, and cost it will involve
friction of distance
a model that predicts the interaction between 2 or more places; geographers derived the model from Newton’s law of universal gravitation
gravity model
a migrant who travels to a new country as temporary labor
guest workers