| Population Growth |
Article Index for Population |
Shopping Population |
Website Links For Population |
Information AboutPopulation Growth |
| CATEGORIES ABOUT POPULATION GROWTH | |
| population ecology | |
| demography | |
| population | |
| environmental threats | |
|
Population growth is the change in Population over time, and can be quantified as the change in the number of individuals in a population per unit time. The term ''population growth'' can technically refer to any species, but almost always refers to humans, and it is often used informally for the more specific Demographic term '''population growth rate''' (see below), and is often used to refer specifically to the growth of the Population Of The World . Simple models of population growth include the Malthusian Growth Model and the Logistic Model . POPULATION GROWTH RATE In demographics and Ecology , Population growth rate (PGR) is the Fraction al Rate at which the number of individuals in a population increases. Specifically, PGR ordinarily refers to the change in population over a specific time period expressed as a Percentage of the number of individuals in the population at the beginning of that period. This can be written as the formula: : The crude death rate as defined above and applied to a whole population can give a misleading impression. For example, the number of deaths per 1000 people can be higher for developed nations than in less-developed countries, despite standards of health being better in developed countries. It is usually measured in a fraction or percent in relation to the base population. HUMAN POPULATION GROWTH RATE |
|
|