4.2 Quadrates

recall the use of quadrates to estimate the population size of an organism in two different areas.

Ecosystems are made up of a number of populations which form a community and the habitat.
start by counting the number of individuals in the two different areas. this can be made easier with the use of quadrating (placing a square grid of 0.5m to 1.0m) then taking samples and counting individuals in the grid. Quadrats are a method of sampling different locations so the population may be compared.