Population Terms Flashcards
(22 cards)
Agricultural revolution
The time when humans first domesticated plants and animals and no longer entirely depended on hunting and gathering
(8000bc-1750ad)
Agricultural density
The ratio of the number of farmers to the amount of arable land
Arithmetic density
Total number of people divided by total land area
Census
A measure of population and people per household
Crude birth rate (CBR)
The total number of live births in a year for every 1000 people alive in the society
Crude death rate (CDR)
The total number of deaths in a year for every 1000 people alive in the society
Demographic transition
A process in which every country is in for growth
Low high moderate low
Demography
The scientific study of population characteristics
Dependency ratio
The number of people who are too young or too old to work compared to the number of people in their productive years
Doubling time
The number of years needed to double a population assuming a constant rate of natural increase
Ecumene
The portion of earths surface occupied by permanent human settlement
Industrial revolution
Start of stage 2, a conjunction of major improvements in industrial technology that transformed the process of manufacturing goods and delivering them to the market
Infant mortality rate (IMR)
The annual number of deaths of infants under one year of age compared with total live births
Life expectancy
Measures the average number of years a newborn infant can expect to live at current mortality rates
Medical revolution
Medical practices invented in europe and north america spread to less developed countries
Natural increase rate (NIR)
The percentage by which population grows in a year
CBR - CDR
Overpopulation
Too many people for the amount of land
Physiological density
The number of people supported by a unit of arable land
Population pyramid
A country’s population displayed by age and gender on a bar graph
Sex ratio
Number of males per hundred females
Total fertility rate (TFR)
The average number of children a woman will have throughout her childbearing years
Zero population growth (ZPG)
Stage 4, when the CBR equals the CDR and population remains the same
