Stable Isotope Analysis Reveals Common Teal (Anas crecca) Molting Sites in Western Siberia: Implications for Avian Influenza Virus Spread
Druzyaka A.V. Druzyaka O.R. Sharshov K.A. Kasianov N. Dubovitskiy N. Derko A.A. Frolov I.G. Torniainen J. Wang W. Minina M.A. Shestopalov A.M.
February 2024Multidisciplinary Digital Publishing Institute (MDPI)
Microorganisms
2024#12Issue 2
The wetlands of southwestern Siberia (SWS) are a crossroads of bird migration routes, bringing avian influenza (AIV) strains that were previously isolated in different regions of the continent to Siberia. It is known that Anseriformes that breed in SWS migrate for the winter to central Hindustan or further west, while their migration routes to southeast Asia (SEA) remain unconfirmed. Here, we mapped the molting sites of the migrating Common Teals (Anas crecca) via analyzing stable hydrogen isotope content in feathers of hunters’ prey and supplemented the analysis with the genetic structure of viruses isolated from teals in the same region. Post-breeding molt of autumn teals most likely occurred within the study region, whereas probable pre-breeding molting grounds of spring teals were in the south of Hindustan. This link was supported by viral phylogenetic analysis, which showed a close relationship between SWS isolates and viruses from south and southeast Asia. Most viral segments have the highest genetic similarity and the closest phylogenetic relationships with viruses from teal wintering areas in southeast Asian countries, including India and Korea. We assume that the winter molt of SWS breeding teals on the Hindustan coast suggests contacts with the local avifauna, including species migrating along the coast to SEA. Perhaps this is one of the vectors of AIV transmission within Eurasia.
Anas crecca , avian influenza , common teal , isoscape , migration routes , molting grounds , stable isotopes
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Institute of Systematic and Ecology of Animals, Frunze Str. 11, Novosibirsk, 630091, Russian Federation
Department of Natural Sciences, Novosibirsk State University, Pirogova Str. 2, Novosibirsk, 630090, Russian Federation
Federal Research Center of Fundamental and Translational Medicine, Timakova Str. 2, Novosibirsk, 630060, Russian Federation
Institute of Zoology, Ministry of Science and Higher Education of the Republic of Kazakhstan, Al-Farabi Ave. 93, Almaty, 050060, Kazakhstan
Department of Biological and Environmental Science, University of Jyväskylä, P.O. Box 35, Jyväskylä, FI-40014, Finland
Open Science Centre, University of Jyväskylä, P.O. Box 35, Jyväskylä, FI-40014, Finland
State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, 810016, China
Institute of Systematic and Ecology of Animals
Department of Natural Sciences
Federal Research Center of Fundamental and Translational Medicine
Institute of Zoology
Department of Biological and Environmental Science
Open Science Centre
State Key Laboratory of Plateau Ecology and Agriculture
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