ch 6 Flashcards
rate
frequency of occurrence of an event during a specified time period
cohort
a population group unified by a specific common characteristic, such as age, who are treated as a statistical unit during their lifetimes
natural increase
the growth of a population through excess of births over deaths, excluding the effects of immigration or emigration
doubling times
the time period required for any beginning total, experiencing compounding growth, to double in size
Homeostatic plateau
the equilibrium level of the population that can be supported adequately by available resources
the effects of population growth
the natural resource base may struggle to support populations
—malnutrition and starvation
—in part a resource distribution failure
what are the 7 factors affecting birth rate (ASRCSPC)
age of population
sex structure of the population
religious beliefs
cultural beliefs
social beliefs
politics
access to contraceptives
ecumene
permanently inhabited areas of the earth
non-ecumene
a portion of the earth’s
surface that is
uninhabited or only
temporarily or
intermittently
inhabited
where almost 90% of the world’s population lives
north of the equator
the 4 main population clusters (SEEN/S)
south asia, east asia, europe, northeastern US/southeastern Canada
