Figure 1.

Parasite occurrence records on Sonoran desert small mammals. The top bar identifies each parasite species (columns) by the host tissue they infect (caecum in purple; ectoparasites in blue; small intestine in green; stomach in yellow). Cells of the matrix are coloured based on the log number of times a given parasite was found on a given host species. One host species, Peromyscus difficilis, had no recorded non-fecal parasites, and was therefore omitted from the main text analyses. (Online version in colour.)