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AP HUG unit 3
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Gravity
Terms in this set (42)
Census Tract
Small permanent statistical subdivisions of a county that are updated by local participants prior the the decennial census
Demographic Accounting Equation
An equation that summarizes the amount of growth or decline in a population within a country during a particular time period taking into account different factors
Pop(t+1) = Pop(t) + B - D + MI - Mo
Pop(t+1) = Population in time t+1, the year following the current year.
Pop(t) = Population in time t, the current.
B = Births
D = Deaths
MI = In-migrants
Mo = Out-migrants
Demographic Dividend
A period when fertility rates fall due to significant reductions in child and infant mortality rates. This leads to an return of economic growth.
Demographic Momentum
Tendency for a growing population to continue growing after a fertility decline
Demographic Transition Model
Demography
The study of human population
Geodemography
The study of spatial variations in distribution, composition, growth, and movements of people and population
Neo-Malthusian
The advocacy of population control programs to ensure enough resources for the current and future population
Thomas Malthus
Eighteenth-century English cleric that said the population would be checked by disease or famine
Population Pyramid
Sustainable Growth Theory
Development that meets the needs of the present without compromising the needs of future generations will lead to sustainable growth
Agricultural Density
Ratio of the number of farmers to arable land
Arithmetic Density
Number of people divided by the land area
Age-Sex Distribution
Percentage of the total population or the population of each sex at every age level
Carrying Capacity
The maximum amount of biological species an environment can support
Census Tract
Small permanent statistical subdivisions of a county that are updated by local participants prior the the decennial census
Child Mortality Rate
Number of children who die each year under the age of 5
Measured in thousands of deaths per year
Crude Birth Rate (BR)
Number of live births per 1,000 people occurring among the population of an area during a year
Crude Death rate (DR)
Number of deaths per 1,000 people per year
Dependency Ratio
The ratio of the number of labor force aged (15-64 years old) people to the non labor force aged people (0-14 and 65+)
Doubling Time
Number of years needed to double a population, assuming a constant rate of natural increase
Exponential Growth
A rate of n^x, where x is the time and n is a constant
Infant Mortality Rate
Number of deaths of infants under 1 year old per 1,000 people per year
Life Expectancy
Average number of years an individual can be expected to live in an area given current social, economic, and medical conditions
Maternal Mortality Rate
Number of deaths of women while pregnant or within 42 days of termination of pregnancy, per 100,000 people per year
Natural Increase Rate
The percentage growth of a population in a year
(Crude Birth Rate) - (Crude Death Rate)
Physiologic Density
Number of people per unit of arable land
Population Density
Population per unit area/volume
Replacement Rate
Number of children per women that will supply enough births to replace parents and compensate for early deaths, disregarding migration effects
Support Ratios
Number of people aged 15-64 per people aged 65 or older
Adolescent Support
Number of people aged 0-14 per 100 people aged 15-64
Elderly Support
Number of people aged 65+ per 100 people aged 15-64
Total Fertility Rate
Average number of children what would be born to a woman over her lifetime
Urban Density
Number of people in an urban region
Zero Population Growth
A decline in total fertility rate to the point where the natural increase rate = 0
Demography
the scientific study of population characteristics
Over population
occurs when number of people exceed the capacity of the environment to support life at a decent standard of living.
Density
Helps geographers explain the relationships between the number of people and available resources.
census
Number of people driven as a population
Cartogram
Depicts sizes of the countries according to the population rather than land area.
Suatainability
How well a country can supply their people with goods and needs.
Sampling
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