A Population Profile, or Population Pyramid, shows sex and age distributions for a determined area, such as a country or region, at a specific period of time. These graphs are useful in understanding the demographic transition of a geographical area. Thin patterns show low fertility, thick patterns show high fertility. A thin column with a bulbous top shows below replacement level fertility. A significant imbalance between the two sides which indicate sex of population may indicate war, in which there is a reduction of men, or infanticide of girls in places like China where there is strict population control along with a desire for male offspring. The pyramid above is for Ethiopia in 2005. The rapidly diminishing pyramid indicates both a high fertility and mortality rate for this country.
No comments:
Post a Comment