Definitions

ACFOR

ACFOR

In ecology, ACFOR is an acronym for a scale used to describe species abundance within a given area (normally within a sampling quadrant). The ACFOR scale is as follows :

A - The species observed is "Abundant" within the given area.
C - The species observed is "Common" within the given area.
F - The species observed is "Frequent" within the given area.
O - The species observed is "Occasional" within the given area.
R - The species observed is "Rare" within the given area.

This method of sampling is simple and easy to implement, but can be subjective. "Species frequency", in which each individual of the species present is recorded, is a more accurate and reliable method of sampling.

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