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dc.contributor.advisorZuberbühler, Klaus
dc.contributor.authorClay, Zanna
dc.coverage.spatial247en_US
dc.date.accessioned2011-04-22T09:16:18Z
dc.date.available2011-04-22T09:16:18Z
dc.date.issued2011-06
dc.identifier.urihttp://hdl.handle.net/10023/1842
dc.description.abstractDespite having being discovered nearly 80 years ago, bonobos (Pan paniscus) are still one of the least well understood of the great apes, largely remaining in the shadow of their better known cousins, the chimpanzees (Pan troglodytes). This is especially evident in the domain of communication, with bonobo vocal behaviour still a neglected field of study, especially compared to that of chimpanzees. In this thesis, I address this issue by exploring the natural vocal communication of bonobos and its underlying cognition, focusing on the role that vocalisations play during two key contexts, food discovery and sex. In the context of food-discovery, I combine observational and experimental techniques to examine whether bonobos produce and understand vocalisations that convey meaningful information about the quality of food encountered by the caller. Results indicate that bonobos produce an array of vocalisations when finding food, and combine different food-associated calls together into sequences in a way that relates to perceived food quality. In a subsequent playback study, it was demonstrated that receivers are able to extract meaning about perceived food quality by attending to these calls and integrating information across call sequences. In the context of sexual interactions, I examine the acoustic structure of female copulation calls, as well as patterns in call usage, to explore how these signals are used by individuals. My results show that females emit copulation calls in similar ways with both male and female partners, suggesting that these signals have become partly divorced from a function in reproduction, to assume a greater social role. Overall, my results highlight the relevance of studying primate vocalisations to investigate the underlying cognition and suggest that vocalisations are important behavioural tools for bonobos to navigate their social and physical worlds.en_US
dc.language.isoenen_US
dc.publisherUniversity of St Andrews
dc.subjectVocal communicationen_US
dc.subjectPrimateen_US
dc.subjectBonoboen_US
dc.subjectChimpanzeeen_US
dc.subjectCopulation callsen_US
dc.subjectReferential communicationen_US
dc.subjectApeen_US
dc.subjectComparative psychologyen_US
dc.subjectLanguage evolutionen_US
dc.subjectLanguage modelsen_US
dc.subjectAudience effectsen_US
dc.subjectSemanticsen_US
dc.subject.lccQL737.P96C62
dc.subject.lcshBonobo--Vocalizationen_US
dc.subject.lcshBonobo--Fooden_US
dc.subject.lcshBonobo--Sexual behavioren_US
dc.titleVocal communication in bonobos (Pan paniscus) : studies in the contexts of feeding and sexen_US
dc.typeThesisen_US
dc.type.qualificationlevelDoctoralen_US
dc.type.qualificationnamePhD Doctor of Philosophyen_US
dc.publisher.institutionThe University of St Andrewsen_US


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