Studies on helminth parasites of the small field mouse (Apodemus microps) and the common vole (Microtus arvalis) from a pine forest in Hungary

The helminth fauna of the small field mouse (Apodemus microps Kratochvil and Rosicky, 1952) and the common vole (Microtus arvalis Pallas, 1778) was studied in a pine forest at Babat (County Pest). A total of 9 parasitic helminths were recovered from the small field mouse, which is reported for the first time as a new host of Anoplocephaloides dentata, Hymenolepis fraterna, Hymenolepis diminuta and Hymenolepis muris-sylvatici. Only well-known helminths were found in common voles, but Heligmosomum costellatum was lacking. The prevalence of parasitic helminths in the two micromammalian species remained beyond what would have been expected. A remarkable seasonal difference was observed in parasite composition by sex of the host species.