2.1 population distribution Flashcards
(15 cards)
Exponential growth
geometric growth, doubles each population
Linear growth
arithmetic growth, increases at a constant amount per unit
Doubling time
number of years needed to double population, assuming CRG
Population explosion
sudden increase in population
Natural increase
births-deaths in population
Crude death rate
of deaths per 1,000 per year
Crude birth rate
of live births per 1,000 people per year
Mortality
infant mortality
life expectancy
Rate of natural increase
% in yearly population growth
Total fertility rate
average number of children born during child barring years
Infant mortality rate
number of deaths under 12 months compared to the living
Child mortality rate
annual # of deaths of under 5 compared with live births
Maternal mortality rate
annual number of deaths of woman in birth
Dependency ratio
the number of people to old or young compared to can work.
Carrying capacity
population level that can be withstood- food, land size, water etc
