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Sex Accent and Biphonation in the Sound Signal of Ground Squirrels (Mammalia, Rodentia)

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Abstract

The alarm call of the little ground squirrel (Spermophilus pygmaeus), like those of six other Eurasian ground squirrels, contains a high-frequency component. In males, the peak and maximum frequencies of the high-frequency component are higher than in females. Biphonation of the alarm calls of Sp. pygmaeus, Sp. musicus, Sp. xanthoprymnus, and Sp. alaschanicus has been demonstrated, with the low- and high-frequency components generated by different sources in the vocal tract. The material was collected in the field.

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ACKNOWLEDGMENTS

The reports of Irena Schneiderova [5, 8, 12] have given an initiating pulse for this study, for which I am deeply and sincerely grateful to her.

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  1. People’s Frendship University of Russia, Moscow, Russia

    A. A. Nikol’skii

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  1. A. A. Nikol’skii
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Correspondence to A. A. Nikol’skii.

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The authors declare that they have no conflict of interest. This article does not contain any studies involving animals or human participants performed by any of the authors.

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Translated by A. Nikolaeva

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Nikol’skii, A.A. Sex Accent and Biphonation in the Sound Signal of Ground Squirrels (Mammalia, Rodentia). Dokl Biol Sci 487, 119–123 (2019). https://doi.org/10.1134/S0012496619040094

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  • DOI: https://doi.org/10.1134/S0012496619040094

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