Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/26890
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dc.contributor.authorIndraswari, Karlinaen
dc.contributor.authorTucker, Daviden
dc.contributor.authorSchwarzkopf, Linen
dc.contributor.authorTowsey, Michaelen
dc.contributor.authorRoe, Paulen
dc.contributor.authorBower, Deborah Sen
dc.date.accessioned2019-05-17T01:55:00Z-
dc.date.available2019-05-17T01:55:00Z-
dc.date.issued2020-
dc.identifier.citationFreshwater Biology, 65(1), p. 142-152en
dc.identifier.issn1365-2427en
dc.identifier.issn0046-5070en
dc.identifier.urihttps://hdl.handle.net/1959.11/26890-
dc.description.abstract1. Soundscapes can provide information about a wide range of habitats and species through the recording of vocalisations over long temporal scales. Because of the large volumes of data collected, computational approaches, such as the application of acoustic indices, are required to extract useful information from long-duration recordings. 2. Acoustic indices summarise various soundscape features into frequency ranges over defined time intervals and can aid in the visual exploration, detection, and analysis of species vocalisation patterns. Here, we examine the performance of combinations of three acoustic indices commonly used in visual exploration, the acoustic complexity index, the temporal entropy spectrum index, and the event spectrum index, and assess their ability to distinguish species and describe acoustic features commonly used to detect species and analyse activity. Our case study focuses on three frog species with distinct call structures from Bickerton Island, Northern Territory, Australia. Call structure was categorised based on the number of pulses and harmonics. 3. We summarised acoustic activity by calculating acoustic indices in 256 equal-sized bins over the entire the frequency spectrum, for 30-s intervals, and found that acoustic index values could be used to distinguish species and describe acoustic features. The acoustic complexity index was the most effective index for distinguishing species. To describe acoustic features, we examined correlations between acoustic index values and summarised acoustic features, including call rate, total duration, loudness and signal-to-noise ratio. In single-pulsed species with no harmonics, we found spectral index values were significantly and sometimes strongly correlated with acoustic features. In comparison, species with harmonics were found to be weakly and less frequently correlated with acoustic features even if sampled calls were loud and have high signal-to-noise ratio. We suggest that acoustic indices have the potential to describe acoustic features in single-pulsed species but are limited in those with harmonics. 4. We conclude that acoustic indices can be a useful tool to distinguish some anuran species and to broadly understand specific acoustic features used to analyse calling activity over long periods of time. 5. Further research is required to better understand the relationships between acoustic indices and acoustic features to determine the general utility of indices to detect and distinguish audible species and to identify other acoustic features of various taxa.en
dc.languageenen
dc.publisherWiley-Blackwell Publishing Ltden
dc.relation.ispartofFreshwater Biologyen
dc.titleAssessing the value of acoustic indices to distinguish species and quantify activity: A case study using frogsen
dc.typeJournal Articleen
dc.identifier.doi10.1111/fwb.13222en
local.contributor.firstnameKarlinaen
local.contributor.firstnameDaviden
local.contributor.firstnameLinen
local.contributor.firstnameMichaelen
local.contributor.firstnamePaulen
local.contributor.firstnameDeborah Sen
local.relation.isfundedbyARCen
local.subject.for2008050202 Conservation and Biodiversityen
local.subject.seo2008960807 Fresh, Ground and Surface Water Flora, Fauna and Biodiversityen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emaildbower3@une.edu.auen
local.output.categoryC1en
local.grant.numberLP150100675en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.publisher.placeUnited Kingdomen
local.format.startpage142en
local.format.endpage152en
local.identifier.scopusid85058652443en
local.peerreviewedYesen
local.identifier.volume65en
local.identifier.issue1en
local.title.subtitleA case study using frogsen
local.contributor.lastnameIndraswarien
local.contributor.lastnameTuckeren
local.contributor.lastnameSchwarzkopfen
local.contributor.lastnameTowseyen
local.contributor.lastnameRoeen
local.contributor.lastnameBoweren
dc.identifier.staffune-id:dbower3en
local.profile.orcid0000-0003-0188-3290en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:1959.11/26890en
local.date.onlineversion2018-12-16-
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleAssessing the value of acoustic indices to distinguish species and quantify activityen
local.relation.fundingsourcenoteAnindilyakwa Land Council, South32 and the Indonesian Endowment Fund for Education (LPDP)en
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.relation.grantdescriptionARC/LP150100675en
local.search.authorIndraswari, Karlinaen
local.search.authorTucker, Daviden
local.search.authorSchwarzkopf, Linen
local.search.authorTowsey, Michaelen
local.search.authorRoe, Paulen
local.search.authorBower, Deborah Sen
local.istranslatedNoen
local.uneassociationYesen
local.atsiresearchNoen
local.sensitive.culturalNoen
local.identifier.wosid000619394700014en
local.year.available2018en
local.year.published2020en
local.fileurl.closedpublishedhttps://rune.une.edu.au/web/retrieve/b4d9214d-9845-4abb-a2c6-187808e9012aen
local.subject.for2020410401 Conservation and biodiversityen
local.subject.seo2020180303 Fresh, ground and surface water biodiversityen
Appears in Collections:Journal Article
School of Environmental and Rural Science
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