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Population Vocab

Overpopulation When the population grows so much, there's a scarcity of resources.
Ecumene The part of Earth occupied by people.
Arithmetic Density The number of people divided by the land area. Shows how the population would be spread out across the land (uniformly).
Physiological Density The number of people divided by farmland. Gives insight to the relationship between size of a population and the availability of resources.
Agricultural Density The number of farmers divided by farmland. Shows the efficiency of both the farmer and the farmland.
Doubling time The amount of time doubling a population takes.
Crude birth rate (CBR) Total live births annually for every 1,000 people alive today.
Crude death rate (CDR) Total deaths annually for every 1,000 people alive.
Natural increase rate (NIR) Percent a population grows annually.
Demographic transition model (DTM) The change in society's population based on birth and death and their affecting factors.
Total fertility rate (TFR) Average amount of babies a fertile woman (ages 15-49) is likely to have.
Infant mortality rate (IMR) Deaths of infants under age 1 compared to the total live births.
Demography/demographics The study of population and it's features.
Agricultural revolution When humans started using domesticated resources for sustenance. Opposed to the nomadic lifestyle the was the previous way to get food.
Industrial Revolution Spread of technology and improvements (during the mid-1700s in Europe). Affected more developed commercials.
Medical Revolution When medical practices and technology diffused to the less developed countries around the 1950's time.
Zero Population Growth (ZPG) When CBR equals CDR and there is no increase or decrease rate.
Population Pyramid Displayment of population based on age and gender
Dependency ratio Number of people incapable of working based on youth and old age.
Sex ratio Males per 100 females
Thomas Malthus English economist who said the population increase would eventually cause the resources to become very scarce.
Epidemiologic transition Specific reasons for death.
Pandemic A disease occurring over a large area, affecting many people.
Created by: Saya-Bella