Unit 2 Vocab Flashcards
The number of people living in a given unit area
Arithmetic density
The number of live births per year per 1000 people
Crude birth rate
The number of deaths per year per 1000 people
Crude death rate
A squeeze of demographic changes in which a country moves from high birth and death rates to low birth and death rates through time
Demographic transition (model)
The ratio of the number of people who are either too old or young to provide for themselves to the number of people who must support them through their own labor
Dependency ratio
Time period required for a population experiencing exponential growth to double in size completely
Doubling time
The proportion of earths surface occupied by permanent human settlements
Ecumene
The theory that says that there is a distinct cause of death in each stage of the demographic transition model. It can also explain how a country’s population changes so dramatically.
Epidemlologic transition (model)
The percentage of children who die before the first birthday to within a particular area or county
Infant mortality rate
The difference between the number of births and the number of deaths within a particular country
Natural increase rate
A value judgment based on the notion that the resources of a particular area are not great enough to support that areas current population
Overpopulation
A ratio of human population to the area of crop land used in less developed countries dominated by subsistence agriculture
Physiological density
A model used in population geography to show the age and sex distribution of a particular population
Population pyramid
The number of males per 100 females in a population
Sex ratio
Proposal to end population. Growth through a variety of official and nongovernmental family planning programs
Zero population growth
The largest number of people that the environment of a particular area can sustainably support
Carrying capacity
Equation that summarizes the amount of growth or decline in a population during a certain periodic time, also taking into account net migration and natural increase
Demographic equation
The tendency for growing population to continue growing after a fertility decline because of their young age distribution
Demographic momentum
The correlation between stability and openness
J-curve
The curve that defines how rate at which technology is advancing
S-curve
The ratio of the number of farmers to the total amount of land suitable for agriculture
Agricultural density
