| [the data on helminth infestation of the siberian tree frog (rana amurensis boulenger, 1886) in the western boundary of the range]. | helminth species composition and infection rates of the siberian tree frog rana amurensis in western siberia were studied. four species of helminthes--nematodes rhabdias bufonis, oswaldocruzia filiformis, cosmocerca ornata and the trematode haplometra cylindracea were found. prevalence of helminths in the siberian tree frog is 100%, and mean abundance is 27.5 +/- 4.8. helminth species richness in the siberian tree frog in the western periphery of their distribution area is lower than in the cent ... | 2014 | 25272465 |