(I)GCSE Topic 4.2 Quadrates

- Quadrates are used to estimate the population size of an organism in two different areas.
- First thing you need to do is count the number of individuals in the population.
- Quadrating is based on squares and these squares can be made up of anything including wood, string, or metal.
- Grids can measure from 0.25m up to 1m
- The Quadrate is used to sample the area. You can take a sample from an area and count the number of individuals inside the area and this would be repeated a number of times to gain an estimate of the population size

-Quadrates are a method of sampling different locations so that populations can be compared within the two different locations.