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HG Ch.2

Agricultural Density ratio of the number of farmers to the amount of arable land
Agricultural Revolution time when humans first domesticated plants and animals and no longer relied entirely on hunting and gathering
Arithmetic Density total number of people/total land area
Census important for human geographers; shows how much population there is of a certain race, ethnicity, and gender.
Crude Birth Rate (CBR) total number of live births in a year for every 1000 people alive in society
Crude Death Rate (CDR) total number of deaths in a year for every 1000 people in society
Demographic Transition a process of change in society's population
Demography scientific study of population characteristics
Dependency ratio number of people too young or too old to work compared to number of people in their productive years
Doubling time number of years needed to double a population
Epidemiologic transition focuses on distinctive causes of death in each demographic transition stage
epemiology branch of medical science concerned with the incidence, distribution, and control of diseases that affect large numbers of people
ecumene portion of earth's surface occupied by permanent human settlement
industrial revolution a time of major improvements in industrial technology
infant mortality rate (IMR) annual number of deaths of infants under one year of age
life expectancy the number of years a person may expect to live
medical revolution when improved medical practices prevented deaths & extended lives
Natural Increase Rate (NIR) percentage of which a population grows in a year
overpopulation relationship of the number of people and the availability of resources
pandemic a disease that occurs over a wide geographic area and affects a very high proportion of the population
physiological density number of people supported by a unit area of arable land
population pyramid shows the percentage of the total population in five-year age group
sex ratio number of males per hundred of females in a population
total fertility rate (tfr) average number of children a woman will have throughout her childbearing years
zero population growth when birth rate drops to equal the death rate, and natural increase rate approaches zero
age cohort group of people with a similar age
anti-natalist concerned with limiting population growth
pro-natalist an attitude that encourages childbearing
contraception birth control by the use of devices drugs or surgery
population agglomeration a cluster of people living in the same area
Created by: randyesfahani