Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/101462
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dc.titleProboscis monkeys (Nasalis larvatus (Wurmb, 1787)) have unusually high-pitched vocalizations
dc.contributor.authorSrivathsan, A.
dc.contributor.authorMeier, R.
dc.date.accessioned2014-10-27T08:37:27Z
dc.date.available2014-10-27T08:37:27Z
dc.date.issued2011-08-31
dc.identifier.citationSrivathsan, A.,Meier, R. (2011-08-31). Proboscis monkeys (Nasalis larvatus (Wurmb, 1787)) have unusually high-pitched vocalizations. Raffles Bulletin of Zoology 59 (2) : 319-323. ScholarBank@NUS Repository.
dc.identifier.issn02172445
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/101462
dc.description.abstractAccording to qualitative descriptions, proboscis monkeys have high frequency vocalizations, but no technical analysis of the calls is available because the species is rare, difficult to study in the field, and few zoological institutions have breeding populations. Here we analyse the high pitch vocalizations of captive proboscis monkeys in the Singapore Zoological Gardens. The monkeys produce very high frequency tonal vocalizations ranging from 1.4 kHz to 6.8 kHz. The calls are produced during acts of aggression or used as alarm calls and the pitch is higher than expected based on a comparative study for such a large primate. We discuss that the high frequency may be an adaptation for predator avoidance (crocodiles) and/or communication in dense vegetation. © National University of Singapore.
dc.sourceScopus
dc.subjectColobine
dc.subjectCommunication
dc.subjectHigh frequency
dc.subjectPrimate calls
dc.subjectSpectrograms
dc.subjectVocal communication
dc.typeArticle
dc.contributor.departmentBIOLOGICAL SCIENCES
dc.description.sourcetitleRaffles Bulletin of Zoology
dc.description.volume59
dc.description.issue2
dc.description.page319-323
dc.identifier.isiutNOT_IN_WOS
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