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