Behavioural evidence for the perception of individual identity and gender via the echolocation calls of a high duty cycle bat, Rhinolophus clivosus

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dc.contributor.advisorJacobs, David Sen_ZA
dc.contributor.advisorBastian, Annaen_ZA
dc.contributor.authorFinger, Nikita Maxineen_ZA
dc.date.accessioned2015-12-03T14:17:43Z
dc.date.available2015-12-03T14:17:43Z
dc.date.issued2015en_ZA
dc.description.abstractDifferent cognitive processes underlie the perception of vocalizations in many mammals, including humans. This perception now extends to a highly specialized form of sonar called echolocation. In habituation-dishabituation experiments, a high duty cycle echolocating bat, Rhinolophus clivosus, dishabituated significantly when echolocation calls of a different gender or individual were played to the habituation. Strong individual and gender signatures but weak geographic signatures were found in both the CF and FM components of their echolocation calls. In the individual discrimination trials reactions were more pronounced to an individual that was less acoustically similar to the habituation than to one that was more similar. Bats reacted to playbacks with a variety of social behaviours. Prior to the analysis of the experiment an ethogram was done on three groups of captive R. clivosus bats. This ethogram was used to categorize the behavioural responses of these bats to the acoustic stimuli in the experiments. The reactions to the habituation-dishabituation experiments show bats perceive gender and individual-specific signatures found in their conspecifics echolocation calls. This is the first study to show behavioural evidence for individual discrimination and second to show gender discrimination of echolocation calls in high duty cycle bats. This evidence supports the theory that echolocation, a system thought to have evolved solely for orientation and foraging, has been coopted for intra-specific communication and mate recognition in bats.en_ZA
dc.identifier.apacitationFinger, N. M. (2015). <i>Behavioural evidence for the perception of individual identity and gender via the echolocation calls of a high duty cycle bat, Rhinolophus clivosus</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/15560en_ZA
dc.identifier.chicagocitationFinger, Nikita Maxine. <i>"Behavioural evidence for the perception of individual identity and gender via the echolocation calls of a high duty cycle bat, Rhinolophus clivosus."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2015. http://hdl.handle.net/11427/15560en_ZA
dc.identifier.citationFinger, N. 2015. Behavioural evidence for the perception of individual identity and gender via the echolocation calls of a high duty cycle bat, Rhinolophus clivosus. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Finger, Nikita Maxine AB - Different cognitive processes underlie the perception of vocalizations in many mammals, including humans. This perception now extends to a highly specialized form of sonar called echolocation. In habituation-dishabituation experiments, a high duty cycle echolocating bat, Rhinolophus clivosus, dishabituated significantly when echolocation calls of a different gender or individual were played to the habituation. Strong individual and gender signatures but weak geographic signatures were found in both the CF and FM components of their echolocation calls. In the individual discrimination trials reactions were more pronounced to an individual that was less acoustically similar to the habituation than to one that was more similar. Bats reacted to playbacks with a variety of social behaviours. Prior to the analysis of the experiment an ethogram was done on three groups of captive R. clivosus bats. This ethogram was used to categorize the behavioural responses of these bats to the acoustic stimuli in the experiments. The reactions to the habituation-dishabituation experiments show bats perceive gender and individual-specific signatures found in their conspecifics echolocation calls. This is the first study to show behavioural evidence for individual discrimination and second to show gender discrimination of echolocation calls in high duty cycle bats. This evidence supports the theory that echolocation, a system thought to have evolved solely for orientation and foraging, has been coopted for intra-specific communication and mate recognition in bats. DA - 2015 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2015 T1 - Behavioural evidence for the perception of individual identity and gender via the echolocation calls of a high duty cycle bat, Rhinolophus clivosus TI - Behavioural evidence for the perception of individual identity and gender via the echolocation calls of a high duty cycle bat, Rhinolophus clivosus UR - http://hdl.handle.net/11427/15560 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/15560
dc.identifier.vancouvercitationFinger NM. Behavioural evidence for the perception of individual identity and gender via the echolocation calls of a high duty cycle bat, Rhinolophus clivosus. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2015 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/15560en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Biological Sciencesen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherBiological Sciencesen_ZA
dc.subject.otherBatsen_ZA
dc.subject.otherEcholocationen_ZA
dc.subject.otherHabituation-Dishabituation Paradigmen_ZA
dc.titleBehavioural evidence for the perception of individual identity and gender via the echolocation calls of a high duty cycle bat, Rhinolophus clivosusen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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