Difference in Akaike's Information Criteria (ΔAIC) and AIC weight statistics for each geographic zone and each model for which at least one zone had an AIC weight of ≥0.100. ψ = probability of presence, φ = the persistence factor, p = probability of detection. Data were generated from fisher Martes pennanti detection sampling from 2002 to 2009 in the southern Sierra Nevada mountains of California.