| Authors |
Margarita I. Kononova, MSc Student, Department of Biology, Institute of Pharmacy, Chemistry and Biology, Belgorod National Research University (308015, Russian Federation, Belgorod, Pobedy Street, 85).
Yuri A. Prisniy, PhD, Associate Professor of the Department of Biology, Institute of Pharmacy, Chemistry and Biology, Belgorod National Research University (308015, Russian Federation, Belgorod, Pobedy Street, 85); e-mail: prisniy_y@bsu.edu.ru |
| Abstract |
The study was conducted in 2016–2017 on three sites in the Belogorye State Nature Reserve (Russia) located in the forest-steppe zone. These sites are 1) «Les na Vorskle», upland oak (Quercus robur) forest; 2) «Ostrasyevy Yary», ravine oak forest, grass-meadow steppe; 3) «Yamskaya Step'», Sury valley, shrublands and forb meadow steppe, Eremkin Log valley, upland oak forest, forb meadow steppe. The small mammals investigated in this present parasitological study were caught using snap traps. These traps were established in lines of 50 or 100 traps per line. In addition, single traps and cone-shape pitfall traps (average length of 30 m) were used. The caught rodents (118 specimens) concern five species: Myodes glareolus, Microtus arvalis, Sylvaemus flavicollis, Sylvaemus uralensis, and Apodemus agrarius. The total prevalence by helminthes was 72%. About 91% of the Muridae animals were infected, while the prevalence of infestation was 55.6% among the Cricetidae specimens. We registered 20 helminth taxa belonging to three classes, six orders, and 12 families. Among the trematodes only eurixenous species were found. Among the cestodes, eurixenous species predominated. Among the nematodes, eurixenous and stenoxenous species were present in almost equal proportion. Dominant species are characterised by maximal values of prevalence of infestation. There were Hymenolepis sp. (17%) among Plathelminthes, species of Syphacia (35.6%) and Heligmosomoides (27.1%) among Nematoda, including Syphacia stroma (17%) and Heligmosomoides polygyrus (14.4%). The other helminth species registered in the present study were either small in number (with prevalence of invasion from 2% to 14%) or rare (with prevalence of invasion less than 2%). Platynosomum muris (Trematoda, Dicrocoeliidae) and Pterothominx sadovskoi (Nematoda, Capillariidae) were reported for the first time in the Central Chernozem Region of Russia. |
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