Home >  Term: Coefficient of faunal similarity (CFS)
Coefficient of faunal similarity (CFS)

The CFS compares the fauna of one area with that of another. CFS = 2C/(a+b), where C = the number of species in common between two areas, a = the number of species in the first area, and b = the number of species in the second area. The higher the CFS, the greater the resemblance.

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