Tuesday, May 10, 2011

4.2 Quadrates



+ Looking at a Sand Dune Ecosystem- it is made up of a number of populations with format the community and the habitat
+ The Fence splits the sand dune into 2 regions, 1 side is grazed from cattle and the other side is not grazed.
+ Counting population has a technique called Quadrating.
+ Quadrates contain of squares 1m by 1m to take samples and we would count individuals inside 1 grid – repeat this a number of times to get an estimation of the population size
+ Quadrates are a method of sampling different locations so populations can be compared.

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