[Parasitic arthropods of Bison bonasus from the Białowieza primeval forest].

During the period 1991-1993, 61 bisons from the Białowieza Primaeval Forest were examined. 8 species of ectoparasites were noted: Bovicola sedecimdecembrii, Lipoptena cervi, Dermacentor reticulatus, Ixodes ricinus, Ixodes persulcatus, Chorioptes bovis, Psoroptes ovis, Demodex bisonianus. The most frequent incidence noted was D. bisonianus, prevalence 52%, followed B. sedecimdecembrii--28%, I. ricinus--12% and L. cervi 8%.