FIG. 1.

Nymphal infection prevalence (NIP) estimates of Neotoma fuscipes, Peromyscus maniculatus, and Sceloporus occidentalis, as each species' density is adjusted from 0 to 100 animals/hectare based on parameter values from (a) 2006, for which a density-dependent relationship between P. maniculatus and N. fuscipes was incorporated into the model simulation, and (b) 2007, for which no density-dependence was included because lower overall densities of small mammals did not lead to an empirically detectable inverse relationship.