Introduction to Population Studies
Introduction to Population Studies
DemographyStudy of population
BirthrateNumber of live births per thousand population.
Death rate
Number of deaths per thousandAlso called mortality rateInfant mortality rateNumber of deaths among infants under age one per thousand live births
Fertility rateAverage number of children a woman of childbearing years would have in her lifetime.
Growth ratePopulation growth rate. (birthrate-deathrate)
Population pyramidGraphic device that shows sex and age distribution of a population
Push factorsThose things that cause people to leave their homeland
Faminewarno human rights etc
Pull factorsDraw people to another location because of possible favorable things.
Moneyjobsopportunityfreedomfood
Population densityAverage number of people who live in a measurable area (square mile)
Carrying capacityNumber of organisms a piece of land can support (non-renewable, renewable resources)
ImmigrantsPeople who move into the country
EmigrantsPeople who leave the country to live in other places.
Zero population growthWhen the combination of birthrate and immigration rate equals the combined death rate and emigration rate.
What effect can rapid population growth cause?NegativesIncrease diseaseOver demand for resourcesIncrease in famine
PositivesIncreased technologyIncreased creativity