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Chapter 2: Pop.
|The number of people that live in a given area of land.
|Arithmetic (Crude) Density
|Total number of people divided by total land area.
|Physiological Population Density
|Number of people per unit of area sustainable for agriculture.
|Land suited for agriculture.
|Population displayed by age & gender on a bar graph.
|Circumstance for too many people for the land to support.
|Number of people an area can support on a sustained basis.
|Length of time needed to double a population.
|A sudden increase in the population
|Zero Population Growth
|When crude birth rate equals crude death rate and natural increase rate approaches zero.
|Tendency for growing population to continue growing after a fertility decline because of their young age distribution. This is important because once this happens a country moves to a different stage in the demographic transition model.
|Population growth measured as the excess of live births over deaths; does not reflect either emigrant or immigrant movements.
|Demographic Transition Model
|The steps through which a society progresses. 1- low growth. 2- high. 3- moderate. 4- low.
|NIR = CBR - CDR