Population distribution Population distribution is the pattern of where people live, it is the arrangement of the population on a certain area according with conditions and requirements of the society (eg race, age, sex, income)http://www.geography.learnontheinternet.co.uk/topics/popn1.html

Human Settlement Pattern The science of human settlements, including city or community planning and design.

http://www.thefreedictionary.com/Human+settlement+patterns

Clustered Settlement A clustered settlement is a pattern of settlement in which the houses and building and living needs are laid out closely together.http://wiki.answers.com/Q/What_is_the_pattern_of_settlement_for_Espanola_Ontario_scattered_linieror_clustered#slide=1

Scattered Settlement In a scattered settlement, dwellings and other buildings are spaced over and extensive area. They are usually found in hilly tracks, thick forests and regions of extreme climates. http://wiki.answers.com/Q/What_is_a_scattered_settlement?#slide=3

Linear Settlement A linear settlement, is a (normally small to medium-sized) settlement or group of buildings that is formed in a long line. Many follow a transport route, such as a road, river, or canal, though some form due to physical restrictions, such as coastlines, mountains, hills or valleyshttp://en.wikipedia.org/wiki/Linear_settlement

Population density Population density is a measurement of population per unit area or unit volume. It is usually applied to the settlement of living organisms, most frequently humans. http://en.wikipedia.org/wiki/Population_density

Overpopulation Overpopulation occurs when a population of a species exceeds the carrying limit of their ecological surroundings http://en.wikipedia.org/wiki/Overpopulation