Volodin IA, Yurlova DD, Ilchenko OG, Vasilieva NA, Volodina EV. Non-individualistic ultrasonic and audible isolation calls throughout ontogeny in a rodent, Eolagurus luteus.
Behav Processes 2021;
193:104540. [PMID:
34774667 DOI:
10.1016/j.beproc.2021.104540]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 10/26/2021] [Accepted: 11/03/2021] [Indexed: 11/17/2022]
Abstract
Acoustic individuality is present in diverse taxa of mammals and birds, becoming especially prominent in those age groups for which discriminating conspecifics by voice is critically important. This study compares, for the first time, the ontogenetic changes of acoustic individuality of ultrasonic and audible calls (USVs and AUDs) across 12 age-classes (from neonates to adults) in captive yellow steppe lemmings Eolagurus luteus. We found that, in this rodent species, the isolation-induced USVs and AUDs are not individually distinct at any age. We discuss that this result is unusual, because discriminating individuals by individualistic vocal traits may be important for such a social species as yellow steppe lemming. We also discuss the potential role of acoustic individuality in studies including rodent models.
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