Ecosystem Transformation (), 87-101
Helminth infestation of the northern red-backed vole Clethrionomys rutilus in the North-Western Siberia
Zhigileva O.N. , Levykh A.Yu. , Perevalova A.S. , Chernyavsky L.Yu.
DOI: https://doi.org/10.23859/estr-251110Pages: 87-101
Received: 10.11.2025
Accepted: 22.12.2025
Available online: 27.02.2026
ISSN 2619-0931 Online
Protected areas (PAs) in northern Western Siberia, being important biodiversity hotspots, still remain relatively understudied for the diversity of many taxa. We present the first data on helminth infestation of the northern red-backed vole Clethrionomys rutilus, which is the dominant rodent species in the protected areas located in the taiga zone (Malaya Sosva State Nature Reserve, Kunovatsky Biological Sanctuary, and Angalsky Mys Natural Monument), the outskirts of Nadym town (Nadym Hills), and the Taz River floodplain. In 2019 and 2021, 231 northern red-backed voles were captured; 12 helminth species were registered as their parasites. The highest parasite species richness and
abundance were observed for the northern red-backed vole inhabiting the protected areas located in the taiga zone. The parasite prevalence (P) and the abundance (A) were the highest in the Kunovatsky Biological Sanctuary (P = 53%, A = 0.79) and the Malaya Sosva State Nature Reserve (P = 45%, A = 2.39), decreasing northwards. The decline in helminth diversity from middle taiga to tundra was consistent with a corresponding change in rodent abundance. In the northern areas of Western Siberia, the helminth diversity in the northern red-backed vole was significantly lower comparing to the southern areas of the region. The obtained data on helminth species composition and infestation rates in C. rutilus
allowed to fill a gap in the study of the helminth fauna of vast territories of North-Western Siberia, including those with conservation status.
O. N. Zhigileva
Tyumen State University
Volodarskogo St. 6, Tyumen, 625003 Russia
zhigileva@mail.ru
A. Yu. Levykh
Scientific Center for Arctic Studies
Respubliki St. 20, Salekhard, Tyumen Oblast, Yamalo-Nenets Autonomous Okrug, 629008 Russia
A. S. Perevalova
Tyumen State University
Volodarskogo St. 6, Tyumen, 625003 Russia
L. Yu. Chernyavsky
Tyumen State University
Volodarskogo St. 6, Tyumen, 625003 Russia
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Keywords: rodents, protected areas, parasites, invasion indicators, forest-tundra, taiga, tundra
For citation: Zhigileva, O.N. et al., 2026. Helminth infestation of the northern red-backed vole Clethrionomys rutilus in the North-Western Siberia. Ecosystem Transformation 9 (1), 87–101. https://doi.org/10.23859/estr-251110
