vocabulary #2 Flashcards
agricultural density
the ratio of the number of farmers to the total amount of arable land (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 (CBR)
The total number of live births in a year for every 1,000 people live in the society
Crude Deatg Rate (CDR)
The total number of deaths in a year for every 1,000 people alive in a 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 rares, low rate 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 permanent human settlement
Elderly support ratio
The number of working-age (ages 15-64) divided by the number of persons 65 or older
Epidemiologic transition
the process of change in the distinctive causes of death in each stage of the demographic transition
Epidemiology
the branch of medical science 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 generally present in the affected locality
Industrial Revolution
1750
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 1 year of age for every 1,000 lives births in a society
Life expectancy
The average number of years an individual can be expected to live, given current social, economic, and medical conditions. Life expectancy at birth is the average number of years a newborn infant an expect to live
Maternity mortality rate
The annual number if of female deaths per 100,000 live births from any cause related to or aggravated by pregnancy or its management (excluding accidental or incidental causes)
Medical Revolution
1950
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 countries and enabled more people live longer and healthier lives
Natural Increase Rate (NIR)
The percentage-age growth of a population in a year, computed as the crude birth rate minus the crude death rate
Overpopulation
A situation in 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 of males per 100 females in the population
Total fertility rate (TFR)
The average number of children a woman will have throughout her childbearing years
Zero population growth (ZPG)
A decline of the total fertility rate to the point where the natural rate of increase equals zero.
