Tolerance Values & Functional Feeding Groups

The two documents provided below contain the California Tolerance Values (CTV) and Functional Feeding Groups (FFGs) as established by CAMLnet (Ode 2003), SAFIT's precursor.

These values were used during the creation of the Indices of Biological Integrity (IBIs) established for several regions in California. These CTVs and FFGs must be used to correctly calculate the IBIs for these regions if they include metrics related to tolerance or functional feeding groups.

These documents should only be used to reference CTVs and FCGs, and must not be used for taxonomic purposes since their veracity has not been verified and known errors and omissions are present.