Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/22240
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dc.contributor.authorDorph, Annalieen
dc.contributor.authorMcDonald, Paulen
dc.coverage.spatialnorthlimit=-33.465179897285; southlimit=-33.465681108231; westlimit=150.15136328581; eastLimit=150.15258637313; projection=WGS84en
dc.coverage.temporal2014-02-28 to 2014-07-12en
dc.date.accessioned2017-12-15T15:04:00Z-
dc.date.issued2017-06-06-
dc.identifier.urihttps://hdl.handle.net/1959.11/22240en
dc.description.abstractDefining an acoustic repertoire is essential to understanding vocal signalling and communicative interactions within a species. Currently, quantitative and statistical definition is lacking for the vocalisations of many dasyurids, an important group of small to medium-sized marsupials from Australasia that includes the eastern quoll (Dasyurus viverrinus), a species of conservation concern. Beyond generating a better understanding of this species' social interactions, determining an acoustic repertoire will further improve detection rates and inference of vocalisations gathered by automated bioacoustic recorders. Hence, this study investigated eastern quoll vocalisations using objective signal processing techniques to quantitatively analyse spectrograms recorded from 15 different individuals. Recordings were collected from Secret Creek Sanctuary in Lithgow in conjunction with observations of the behaviours associated with each vocalisation to develop an acoustic-based behavioural repertoire for the species. Vocalisation measures were extracted using narrowband spectrograms (FFT method, window length 0.05 sec, dynamic range = 70 dB, time-steps = 1,000, frequency steps = 250, Gaussian window shape) produced in the program PRAAT (5.3.84 DSP Package). Source-related parameters using an autocorrelation method were used to detect the fundamental frequency (F0) contour from which measures of Duration, Median F0, Mean F0, Minimum F0, Maximum F0, Range of F0, Standard deviation of F0, Noise-to-Harmonics ratio, Jitter and Shimmer were extracted. Additionally intensity contours were extracted for each call to measure the Minimum amplitude, Maximum amplitude and Amplitude variation. Analysis of recordings produced a putative classification of five vocalisation types: Bark, Growl, Hiss, Cp-cp, and Chuck. These were most frequently observed during agonistic encounters between conspecifics, most likely as a graded sequence from Hisses occurring in a warning context through to Growls and finally Barks being given prior to, or during, physical confrontations between individuals. Quantitative and statistical methods were used to objectively establish the accuracy of these five putative call types. A multinomial logistic regression indicated a 97.27% correlation with the perceptual classification, demonstrating support for the five different vocalisation types. This putative classification was further supported by hierarchical cluster analysis and silhouette information that determined the optimal number of clusters to be five. Minor disparity between the objective and perceptual classifications was potentially the result of gradation between vocalisations, or subtle differences present within vocalisations not discernible to the human ear. The implication of these different vocalisations and their given context is discussed in relation to the ecology of the species and the potential application of passive acoustic monitoring techniques.en
dc.format1 .CSVen
dc.languageenen
dc.rightsAttribution 3.0 AU*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/au*
dc.titleMeasures of eastern quoll vocalisation extracted using PRAATen
dc.typeDataseten
dc.identifier.doi10.4226/95/593744a094317en
dcterms.accessRightsOpenen
dc.subject.keywordsVocalisationen
dc.subject.keywordsAcousticsen
dc.subject.keywordsMarsupialsen
dc.subject.keywordsBioacousticsen
dc.subject.keywordsEastern Quollsen
dc.identifier.datasetidDorphAnnalie_20170607en
dc.rights.accessOpenen
local.contributor.firstnameAnnalieen
local.contributor.firstnamePaulen
local.format.size497 KBen
local.date.recorded2017-06-06en
local.date.retentionend2022-06-06en
local.identifier.cloudDorphAnnalie_20170607en
local.rights.rightsholderUniversity of New Englanden
local.access.embargoedto2017-06-06en
local.rights.statementData is provided under PLoS One's open access requirements.en
local.subject.for2008060201 Behavioural Ecologyen
local.subject.for2008060801 Animal Behaviouren
local.subject.seo2008970106 Expanding Knowledge in the Biological Sciencesen
local.subject.seo2008960806 Forest and Woodlands Flora, Fauna and Biodiversityen
local.identifier.epublicationsune:22430en
local.dcrelation.storedatUniveristy of New Englanden
local.dcrelation.contactProf. Paul McDonald pmcdon21@une.edu.auen
local.dcrelation.custodianProf. Paul McDonald pmcdon21@une.edu.auen
local.dcrelation.publicationThesis titleen
local.dcrelation.ispartofMeasures of eastern quoll vocalisation extracted using PRAATen
local.dcrelation.ismanagedbySchool of Environmental & Rural Scienceen
local.dcrelation.statusPublisheden
local.dcrelation.accesshttps://cloud.une.edu.au/index.php/s/SaMiPxFo6k7tT6Ien
local.profile.schoolSchool of Environmental & Rural Scienceen
local.profile.schoolSchool of Environmental & Rural Scienceen
local.profile.emailadorph@myune.edu.auen
local.profile.emailpaul.mcdonald@une.edu.auen
local.output.categoryXen
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.publisher.placeArmidale, NSW, Australiaen
local.access.fulltextYesen
local.contributor.lastnameDorphen
local.contributor.lastnameMcDonalden
dc.identifier.profileadorphen
dc.identifier.staffune-id:adorphen
dc.identifier.staffune-id:pmcdon21en
local.profile.roleauthoren
local.profile.rolesupervisoren
local.identifier.unepublicationidune:1959.11/22240en
dc.date.deposit2017-06-07en
dc.identifier.academiclevelStudenten
dc.identifier.academiclevelAcademicen
local.title.maintitleMeasures of eastern quoll vocalisation extracted using PRAATen
local.relation.fundingsourcenoteUniversity of New England Student Reseach Funden
local.output.categorydescriptionX Dataseten
local.description.statisticsepubsVisitors: 25<br />Views: 265<br />Downloads: 0en
local.search.authorDorph, Annalieen
local.search.supervisorMcDonald, Paulen
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