The ectoparasite fauna for island foxes (Urocyon littoralis) on Santa Cruz
Island (California, USA) in April (wet season) and September (dry season) 1
998 was evaluated. Three taxa of ectoparasites were identified. These were
fleas (Pulex irritans), lice (Neotrichodectes mephitidis), and ticks (Ixode
s pacificus). Ectoparasite abundances varied seasonally Typical of insular
endemic species, island foxes may be especially vulnerable to the introduct
ion of novel disease organisms and their vectors.