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ch 2 vocab

agricultural density the ratio of the number of farmers to the total amount of land suitable for agriculture
arithmetic density the total number of people divided by the total land area
census a complete enumeration of a population
crude birth rate the total number of live births in a year for every 1,000 people alive in the society
crude death rate the total number of deaths in a year for every 1000 people alive in the society
demographic transition the process of change in a society's population from a. condition of high crude birth and death rates and low rate of natural increase to a condition of low crude birth and death rates, low rates of natural increase and higher total population
demography the scientific study of population characteristics
dependency ratio the number of people under age 15 and over age 64 compared to the number of people active in the labor force
doubling time the number of years needed to double a population, assuming a constant rate of natural increase
ecumene the portion of earth's surface occupied by permeant human settlement
epidemiologic transition distinctive cause of death in each stage of demographic transition
epidemiology medical science concerned with the incidence, distribution, and concerned with the incidence, distribution, and control of diseases that are prevalent among a population at a special time and are produced by some special causes not present in locality
industrial revolution a series of improvements in industrial technology that transformed the process of manufacturing goods
infant mortality rate (IMR) the total number of deaths in a year among infants under one year of age for every 1,000 live births in a society
life expectancy the average numbers of years and individual can be expected to live, given current social, economic, and medical conditions. this at birth is the average number of years a newborn infant can expect to live
medical revolution Medical technology invented in Europe and North America that has diffused to the poorer countries in Latin America, Asia, and Africa. Improved medical practices have eliminated many of the traditional causes of death in poorer counties: ppl. live longer
natural increase rate (NIR) the percentage growth of a population a year, computed as the crude birth rate minus the crude death rates
overpopulation a situation which the number of people in an area exceeds the capacity of the environment to support life at a decent standard of living
pandemic disease that occurs over a wide geographic area and affects a very high proportion of the population
physiological density the number of people per unit of area of arable land, which is land suitable for agriculture
population pyramid a bar graph that represents the distribution of population by age and sex
sex ratio the number if males per 100 females in the population
total fertality rate (TFR) the average number of children a women will have throughout he childbearing years
zero population growth (ZPG) a decline of the total fertility rate to the point where the natural increase rate equals zero
Created by: delaneyferris