Abstract
An experiment aimed at revealing the consequences of adding two species of entomopathogenic Ascomycetes, Beauveria bassiana and Metarhizium robertsii, to grain fodder showed that northern red-backed voles that received M. robertsii conidia in their food for 15 days had higher levels of triglycerides, glucose, and peroxidase in the blood; differed from other animals in social behavior patterns; and demonstrated significantly less emotionality in an open field test than control animals. The voles fed fungal conidia showed a trend towards reduced survival in captivity compared to controls. These data indicate the significant impact of entomopathogenic fungi on the metabolism, behavior, and lifespan of nontarget mammals.
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ACKNOWLEDGMENTS
We thank I.A. Polikarpov and A.A. Khalin for help in measuring the basal metabolic rate and M.V. Tyurin and T.M. Marchenko for help in fungal cultivation.
Funding
This work was carried out within the framework of the Federal Program for Fundamental Scientific Research for 2013–2020, project VI.51.1.8. State registration number АААА-А16-116121410118-7 with partial financial support from the Russian Foundation for Basic Research (project no. 19-04-00929).
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Novikov, E.A., Zadubrovskiy, P.A., Kondratyuk, E.Y. et al. Effects of the Entomopathogenic Fungi, Beauveria bassiana and Metarhizium robertsii, on the Physiological and Behavioral Traits of the Northern Red-Backed Vole (Myodes rutilus, Rodentia, Cricetidae) under Stressful Conditions. Biol Bull Russ Acad Sci 49, 924–932 (2022). https://doi.org/10.1134/S1062359022070123
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DOI: https://doi.org/10.1134/S1062359022070123