Individual identity of alarm calls in wild-living Brandt’s voles (Lasiopodomys brandtii)

IF 2.1 3区 生物学 Q2 MULTIDISCIPLINARY SCIENCES
Ilya A. Volodin, Vadim E. Kirilyuk, Nina A. Vasilieva, Elena V. Volodina
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引用次数: 0

Abstract

We investigated acoustic variation responsible for the individuality of alarm calls produced by 50 Brandt’s voles Lasiopodomys brandtii derived from 50 different wild-living colonies. For the first time, we described the calling pattern of Brandt’s voles, producing a long series of short alarm calls with short inter-call intervals. The alarm calls displayed four different contours of fundamental frequency but were nevertheless strongly individually distinct within a series of 50 successive alarm calls per caller (2500 analyzed alarm calls). The average value of correct assignment of alarm calls to individuals with discriminant function analysis was 15 times higher than the value expected by chance and was robust, not decreasing with cross-validation. We discuss that the highly individualistic alarm calls provide a basis for individual recognition of callers by colony members. At the same time, heterogeneity of call contours makes the long call series less monotonous, potentially preventing habituation and promoting alertness of conspecific call recipients.

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来源期刊
The Science of Nature
The Science of Nature 综合性期刊-综合性期刊
CiteScore
3.40
自引率
0.00%
发文量
47
审稿时长
4-8 weeks
期刊介绍: The Science of Nature - Naturwissenschaften - is Springer''s flagship multidisciplinary science journal. The journal is dedicated to the fast publication and global dissemination of high-quality research and invites papers, which are of interest to the broader community in the biological sciences. Contributions from the chemical, geological, and physical sciences are welcome if contributing to questions of general biological significance. Particularly welcomed are contributions that bridge between traditionally isolated areas and attempt to increase the conceptual understanding of systems and processes that demand an interdisciplinary approach.
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