22 terms

Ch.4

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Terms in this set (...)

growth rate
the percent increase of population size over time; affected by births,deaths, and the number of people moving into or out of a regional population
life expectancy
the number of years an individual is expected to live
crude death rate
the number of depths per 1,000 individuals per year
crude birth rate
the number of offspring per 1,000 individuals per year
population density
the number of people per unit area
overpopulation
more people living in an area than its supernatural and human resources can support
population momentum
the tendency of a young population to continue to grow even after birth rates drop to "replacement rates"- 2 per couple
infant mortality rate
the number of infants who die in their first year of life per every thousand lives births in that year
total fertility rate
the number of children the average women has in her lifetime
demographic factors
population characteristics such as birth rate or life expectancy that influence how a population change in size and composition
developed country
a country that has a moderate to high standard of living on average and an established market economy
developing country
a country that has a lower standard of living that a developed country, and has a weak economy; my have high poverty
demographic transition
theoretical model that describes the expected drop in once- high population growth rates as economic conditions improve the quality of life in a population
zero population growth
the absence of population growth; occur when birth rates equal to death rates
replacement fertility rate
the rate at which children must be born to replace those dying in population
age structure
the part of a population pyramid that shows what percentage of the population is distributed into various age groups of males and females
sex ratio
the relative number of males to females in a population; calculated by dividing the number of males by the number of females
age structure diagram
a graphic that displays the size of various age groups with males shown on one side of the graphic and females on the other
gendercide
the systematic killing of a specific gender
immigration
the movement of people into a given population
emigration
the movement of people out of a given population
carrying capacity
the population size that an area can support for the long term, it depends on resources availability and the rate of per capita resource use by the population