1. Populations

2. Population – a group of individuals of a single species that live in the same area.

3. Dispersion
One metric used to analyze populations is to look at their dispersion, the pattern of spacing in a population

5. Uniform arises when there are repulsing factors that push organisms apart
Clumped arises when there are attracting factors (such as herding) that pull organisms together.
Random occurs when there is a lack of attracting or repulsing effects.

6. Population Size and Density
Population size – total number of organisms in a population
Often measured with mark- recapture
Population density – number of organisms per unit area