Quadrats - a square of metal, wood, or plastic used in Ecology to isolate a sample. It is suitable for sampling plants or slow moving animals such as millipedes and other insects.
Transect lines - a tape measure or rope is laid down in a straight line. Quadrat samples are then taken every metre along the line. This allows you to measure the distibution of something along that line.
Estimation the Distribution of a Species:
- Count all the organisms in a 1m^2 quadrat or estimate the number of squares filled.
- Multiply the number of organisms or the amount of squares filled by the total area of the habitat.
Using a Transect Line
- Quadrats are places along the line at regular intervals using a tape measure.
- Used to observe how to distibution of a species changes along the line.