Growth Rate (annual rate of increase)
the rate of growth of a population, as a percentage. multiplied by the existing population, this rate gives the net yearly increase for the population.
Total Fertility Rate
the average number of children each woman has over her lifetime, expressed as a yearly rate based on fertility occurring during a particular year.
a fertility rate that will just replace a woman and her partner, theoretically 2.0, but adjusted slightly higher because of mortality and failure to reproduce.
Infant deaths per thousand live births
Population Profile (age structure)
a bar graph plotting numbers of males and females for successive ages in the population, starting with youngest at the botom.
the effect of current age structure on future population growth. young populations will continue growing even after replacement-level fertility has been reached, due to reproduction by already existing age groups.
the number of live births per thousand in a population in a given year.
Crude Death Rate
the number of death per thousand in a population in a given year.
the time it takes for a population increasing at given growth rate to double in size
The shift from high death rates to low death rates in a population as a result of modern medical and sanitary developments.
the decline of birthrates from high levels to low levels in a population.
The tendency of a population to shift from high birth and death rates to low birth and death rates as a result of the epidemiological and fertility transitions. The result is a population that grows very slowly, if at all.