Population Ecology: Density and Dispersion
This historical Ecology URL is preserved as a compatibility learning page. Its core topic is now developed in the current course as Lecture 08.
Population ecology studies how the size, density, distribution, and composition of a population change through time. Density describes the number of individuals per unit area or volume, while dispersion describes how individuals are arranged in space. Common dispersion patterns are clumped, uniform, and random, each arising from different combinations of resources, behaviour, competition, reproduction, and habitat structure.
Population patterns should always be interpreted together with sampling scale and method. A population can appear random at one spatial scale but clumped at another. Reliable ecological interpretation therefore depends on defining the sampling unit, spatial boundary, observation period, and detection method.
Continue with Lecture 08: Population Characteristics, Density and Dispersion.