4.2 quadrates

1. Quadrates our used to estimate the population size.
2. We will be looking at sand dune ecosystem.
3. It's made up of a number of population which forms the community and the habitat.
4. The fence across the sand dunes separate the grazed and the ungrazed side of the land.
5. We could start by counting the number of individual organisms on each area.
6. We can count these through quadrating
7. Quadrating is based on squares. They form squared grids. The sqquares can be made of any material.
8. We could take samples from each area and put it into the grid and then start counting the number of organisms.
9. This can be repeated a number of times in order to estimate the population size.
10. Quadrates are a method of sampling in different locations so that the population could be compared in the two different locations.