Sunday, May 8, 2011

4.3 describe the use of quadrats as a technique for sampling the distribution of organisms in their habitats.

Quadrat technique used to sample the pop of species.

Sample: Random (Bias)
             Representative (Large) 
How they organize: Grid system. This enables you to identity all material - Works like a graph using coordinates. The guadrats are placed in the grid in individual squares - for placement  for "Bias" sampling, you use "random" numbers and they are generated along the "x" & "y" axis.

Representative sampling : A small quantity of materials, whose characteristics represent (as accurately as possible) the entire batch,population.

1 comment:

  1. It's enjoyable to learn more and more from your blog. Thanks for sharing.

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