Behaviour 2019
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GUINEA PIG COURTSHIP CALL REFLECTS MALE INDIVIDUAL IDENTITY BUT NOT SOCIAL STATUS
P Verzola-Olivio1, B L Ferreira1, F Frei2, P F Monticelli1. 1Department of Psychology, Faculty of Philosophy, Science and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; 2Department of Biology, Faculty of Science and Letters e FCLAssis, São Paulo State University - Unesp, Assis, São Paulo, Brazil

The males exhibit courtship displays that can declare their qualities and may be used to females to evaluate their mates and make choices. Courtship elements can be from one or more sensorial modalities, including acoustic signals. Guinea pigs (Cavia porcellus) courtship display is a complex sequence of behaviors and includes signals from different sensorial modalities (acoustic, visual, and chemical). We investigated the guinea pigs’ courtship call (purr) to verify its potential to reflect the male identity and social status, throughout variation in their acoustic features. We measured 21 acoustic parameters and verify individual differences throughout the Potential to individual code (PIC). We described male social status using Modified David's Score. The purr is individually distinct between males but does not reflect dominance status. PIC suggested that the main differences between individuals are in frequency parameters. Guinea pig courtship display is a multimodal display, and cues about dominance may be coded in another signal. Further studies are necessary to understand the role of each signal in guinea pigs' courtship display.