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Stable Isotope Analysis Reveals Common Teal (Anas crecca) Molting Sites in Western Siberia: Implications for Avian Influenza Virus Spread

Stable Isotope Analysis Reveals Common Teal (Anas crecca) Molting Sites in Western Siberia: Implications for Avian Influenza Virus Spread

Alexey V Druzyaka ^1,2, Olga R Druzyaka ^1,2,3, Kirill A Sharshov ³, Nikita Kasianov ³, Nikita Dubovitskiy ³, Anastasiya A Derko ³, Ivan G Frolov ^1,2,4, Jyrki Torniainen ^5,6, Wen Wang ⁷, Mariya A Minina ¹, Alexander M Shestopalov ³

Alexey V Druzyaka ^1,2, Olga R Druzyaka ^1,2,3, Kirill A Sharshov ³

¹Institute of Systematic and Ecology of Animals, Frunze Str. 11, 630091 Novosibirsk, Russia.
²Department of Natural Sciences, Novosibirsk State University, Pirogova Str. 2, 630090 Novosibirsk, Russia.
³Federal Research Center of Fundamental and Translational Medicine, Timakova Str. 2, 630060 Novosibirsk, Russia.
⁴Institute of Zoology, Ministry of Science and Higher Education of the Republic of Kazakhstan, Al-Farabi Ave. 93, Almaty 050060, Kazakhstan.
⁵Department of Biological and Environmental Science, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland.
⁶Open Science Centre, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland.
⁷State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China.

⁰Institute of Systematic and Ecology of Animals, Frunze Str. 11, 630091 Novosibirsk, Russia.

Microorganisms +

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February 24, 2024

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View abstract on PubMed

Summary

This summary is machine-generated.

Avian influenza (AIV) in Siberian wetlands is linked to migratory birds. Common Teals migrating to Hindustan may facilitate AIV transmission to Southeast Asia, impacting Eurasian viral spread.

Area Of Science

Ornithology
Virology
Ecology

Background

Southwestern Siberian wetlands are crucial avian migration hubs, potentially introducing diverse avian influenza virus (AIV) strains.
The wintering and migration routes of Anseriformes breeding in southwestern Siberia (SWS) to Southeast Asia (SEA) are not fully understood.

Purpose Of The Study

To investigate the molting sites of Common Teals (Anas crecca) migrating from SWS.
To analyze the genetic structure of AIV strains found in these teals.
To determine potential AIV transmission pathways between SWS, Hindustan, and SEA.

Main Methods

Stable hydrogen isotope analysis of Common Teal feathers to map molting grounds.
Phylogenetic analysis of AIVs isolated from teals in SWS.
Comparison of viral genetic data with known AIVs from other regions.

Main Results

Post-breeding molt for autumn teals likely occurred in the SWS region.
Pre-breeding molting grounds for spring teals were identified in southern Hindustan.
AIV isolates from SWS showed close phylogenetic relationships with viruses from teal wintering areas in India and Korea.

Conclusions

Common Teals breeding in SWS likely molt in southern Hindustan before returning, suggesting a link to SEA migratory routes.
Winter molting in Hindustan may facilitate AIV transmission to local and SEA-migrating avifauna.
This migratory connection represents a potential AIV transmission vector across Eurasia.

Keywords:

Anas crecca avian influenza common teal isoscape migration routes molting grounds stable isotopes

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