aphug unit2 vocab

Ecumene

how inhabitable a space is

Anthropogenic Biomes

ecosystems which have been altered in any way by humans

density

How much of something (such as population) is located in a particular place

Population Centroid

the point on which a rigid, weightless map would balance perfectly, if the population members are represented as points of equal mass

Carrying Capacity

The margin of the habitat or environment's ability to provide the resources necessary to sustain human life

Population Cohorts

Age groups within the population in 5-year intervals (0-4, 5-9, 10-14 etc.)

Pre-reproductive Group

population cohort aged 0-14

Reproductive Group

population cohort aged 15-44

Post-Reproductive Group

population cohort aged 45+

Population Pyramid

Graphic representation of a population showing male on the left and female on the right

Replacement Rate

This is the number of births per woman in the population required to maintain the size of a population

Crude Birth Rate

The number of live births occurring among the population of a given geographical area during a given year, per 1,000 people (counted midyear)

Crude Death Rate

The number of deaths occurring among the population of a given geographical area during a given year, per 1,000 people (counted midyear)

Rate of Natural Increase (RNI)

Crude Birth Rate - Crude Death Rate
                        10

Actual Population Growth Rate (Demographic Balancing Equation)

The actual measure of the growth or decline of a population which takes all factors into account

Doubling Time

The projected amount of time that it will take for a given population to double