apes ch.9 Flashcards
population change
birth/immigration - death/emigration
during a specific period
birth rate
number of births per 1,000 in a year
death rate
number of births per 1,000 ppl in a year
fertility
of children born to a women during her lifetime
replacement level fertility
of children a couple must bear to replace themselves
total fertility rate
average # of cildren a woman has during reproductive years
baby boom
high birth rates in 40-60
baby bust
follows a baby boom
environmental refugees
ppl leaving home because of envir problems that affects quality of life
age structure diagrams
distribution of males and females in each age group
demographic transition
as a country become industrialized, death rates decline then birth rates decline
preindustrial stage
little pop growth. high birth and death rate
transitional stage
food production rise, health care improves. high birth, low death
industrial stage
birth drops reaching death. slow growth
postindustrial age
lower birth rate. birth=death. no pop growth
