APHuG Unit 2 Vocab (CED) Flashcards
2.1 - Midlatitudes
Regions between 30 degrees and 60 degrees, north and south of the equator.
2.1 - Low-lying areas
Have better soils for raising crops than do upalnd or high-altitude areas.
2.1 - Social Stratification
The heirarchical division of people into groups based on factors such as economic status, power, and/or ethnicity.
2.1 - Arithmetic Population Density
Calculated by dividing a region’s population by its total area.
2.1 - Physiological Population Density
Calculated by dividing population by the amount of arable land, or land sustainable for growing crops.
2.1 - Agricultural Population Density
Compares the number of farmes to the area of arable land. This value gives an indication of the efficiency of the region’s farmers. Developed countries have lower agricultural densities because farmers have resources and technology to produce large quantities of food with fewer workers.
2.2 - Redistricting
Boundary adjustments, usually result in physically smaller urban districts and larger rural districts.
2.2 - Overpopulation
A region having more people than it can support - is partially dependent on its population distribution and density.
2.2 - Carrying Capacity
The number of people a region can support without damaging the environment. The higher the population density, usually the greater strain on the environment.
2.3 - Population Pyramid/Age-Sex Composition Graph
Based only on age and gender data. It can provide information on birth rates, death rates, how long people live on average, and economic development. Can give evidence of past events such as environmental hazards, wars, political changes, and epidemics.
2.3 - Cohort
The vertical axis which shows age groups
2.3 - Birth Deficit
Slowdown of births
2.3 - Baby Boom
Spike in birth rates
2.3 - Baby Bust
Once the baby boom ends, birth rates are lower for a number of years.
2.3 - Echo
Reflects an earlier baby boom that shows a bulge on a pyramid.
2.3 - Potential Wokrforce
People ages 15-64 that are expected to be society’s labor force.
2.3 - Dependency Ratio
The comparison between the potential workforce and the dependent population.
2.4 - Demographic Balancing Equation
Describes the future population of a region of any scale:
Future population = Current population + (number of births - number of deaths) + (number of immigrants - number of emigrants)
2.4 - Immigrants
People who moved into the country
2.4 - Emigrants
People who moved out of the country
2.4 - Crude Birth Rate (CBR)
The number of live births per year for each 1,000 people.
2.4 - Total Fertility Rate (TFR)
Focuses on the women in their childbearing years of ages 15-49. The average number of children who would be born per women.
2.4 - Life expectancy
The average number of years people live.
2.4 - Infant Mortality Rate
The number of children who die before their first birthday.