Vocal discrimination of African lions and its potential for collar-free tracking

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dc.contributor.author Wijers, Matthew
dc.contributor.author Trethowan, Paul
dc.contributor.author Du Preez, Byron
dc.contributor.author Chamaillé-Jammes, Simon
dc.contributor.author Loveridge, Andrew J.
dc.contributor.author Macdonald, David W.
dc.contributor.author Markham, Andrew
dc.date.accessioned 2021-02-23T06:43:47Z
dc.date.issued 2020
dc.description.abstract Previous research has shown that African lions (Panthera leo) have the ability to discriminate between conspecific vocalisations, but little is known about how individual identity is conveyed in the spectral structure of roars. Using acoustic – accelerometer biologgers that allow vocalisations to be reliably associated with individual identity, we test for vocal individuality in the fundamental frequency (f0) of roars from 5 male lions, firstly by comparing simple f0 summary features and secondly by modelling the temporal pattern of the f0 contour. We then assess the application of this method for discriminating between individuals using passive acoustic monitoring. Results indicate that f0 summary features only allow for vocal discrimination with 70.7% accuracy. By comparison, vocal discrimination can be achieved with an accuracy of 91.5% based on individual differences in the temporal pattern of the f0 sequence. We further demonstrate that passively recorded lion roars can be localised and differentiated with similar accuracy. The existence of individually unique f0 contours in lion roars and their relatively lower attenuation indicates a likely mechanism enabling individual lions to identify conspecifics over long distances. These differences can be exploited by researchers to track individuals across the landscape and thereby supplement conventional lion monitoring approaches. en_ZA
dc.description.department Mammal Research Institute en_ZA
dc.description.department Zoology and Entomology en_ZA
dc.description.embargo 2021-10-02
dc.description.librarian hj2021 en_ZA
dc.description.sponsorship The John Fell Fund, University of Oxford and the Beit Trust. en_ZA
dc.description.uri http://www.tandfonline.comtoc/tbio20 en_ZA
dc.identifier.citation Matthew Wijers , Paul Trethowan , Byron Du Preez , Simon Chamaillé-Jammes , Andrew J. Loveridge , David W. Macdonald & Andrew Markham (2021): Vocal discrimination of African lions and its potential for collar-free tracking, Bioacoustics, DOI:10.1080/09524622.2020.1829050. NYP. en_ZA
dc.identifier.issn 0952-4622
dc.identifier.other 10.1080/09524622.2020.182905
dc.identifier.uri http://hdl.handle.net/2263/78799
dc.language.iso en en_ZA
dc.publisher Taylor and Francis en_ZA
dc.rights © 2020 Informa UK Limited, trading as Taylor & Francis Group. This is an electronic version of an article published in Bioacoustics, vol. , no. , pp. , 2021. doi : 10.1080/09524622.2020.182905. Bioacoustics is available online at : http://www.tandfonline.comtoc/tbio20. en_ZA
dc.subject African lion (Panthera leo) en_ZA
dc.subject Fundamental frequency en_ZA
dc.subject Passive acoustic monitoring en_ZA
dc.subject Vocal individuality en_ZA
dc.subject Vocalisation en_ZA
dc.title Vocal discrimination of African lions and its potential for collar-free tracking en_ZA
dc.type Postprint Article en_ZA


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