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dc.contributor.authorPolicht, Richard
dc.contributor.authorPetrů, Milada
dc.contributor.authorLastimoza, Lucia
dc.contributor.authorSuarez, Leo
dc.coverage.spatialLambunaoen
dc.coverage.spatialBacoloden
dc.date.accessioned2022-03-21T07:41:58Z
dc.date.available2022-03-21T07:41:58Z
dc.date.issued2009-03-01
dc.identifier.citationPolicht, R., Petrů, M., Lastimoza, L., & Suarez, L. (2009). Potential for the use of vocal individuality as a conservation research tool in two threatened Philippine hornbill species, the Visayan Hornbill and the Rufous-headed Hornbill. Bird Conservation International, 19(1), 83-97.en
dc.identifier.issn0959-2709
dc.identifier.urihttp://repository.wvsu.edu.ph/handle/123456789/87
dc.description.abstractThis study presents the first multivariate analysis of hornbill vocalizations and the first bioacoustic study of any Philippine hornbill species. We analyzed loud calls of two Philippine hornbill species, the Rufous-headed Hornbill Aceros waldeni and the Visayan Hornbill Penelopides panini panini, to assess the possibility for their use in individual identification. Our study showed that individuals of the two studied hornbill species can be identified on the basis of their loud calls, which means that these calls potentially contain information about the caller. Discriminant analysis classified 89% of individual Rufous-headed Hornbills and 90% of individual Visayan Hornbills correctly. The acoustic variables describing the most variation among individual Visayan Hornbills were spectral variables (second amplitude peak) and temporal variables (location of the maximum amplitude and call duration). The calls of individual Rufous-headed Hornbill were differentiated mainly by spectral variables (the fundamental and the first harmonic frequency, and additionally the upper quartile of the frequency range). Frequency parameters in Rufous-headed Hornbill calls were significantly lower than those in Visayan Hornbills. The use of acoustic monitoring of individuals as a non-invasive marking technique could help to monitor hornbill individual life history and to improve census data using capture-mark-recapture technique.en
dc.description.sponsorshipThe study would not be possible without help of many people. We owe a special thanks to William Oliver for his help and support of our research in the Philippines, also to Marisol Pedregosa and Pavel Hospodařský for their help in the initial planning of our project. Thank also to the staff of Mari-it Conservation Park and BCC-FFI. We are grateful to DENR officers for permission to conduct this research. Richard Policht and Milada Petrů were supported by Grant Agency of the Czech Republic (No.206/05/H012). We thank also Xiao-Yin Zhang, Tristan Farrow and Gareth Bloomfield for language corrections in the early version of this manuscript. The research equipment was funded by the Grant Agency of the Charles University in Prague, project No. B-BIO-185/2004.en
dc.language.isoenen
dc.publisherCambridge University Pressen
dc.publisherBirdLife International
dc.relation.urien
dc.subjectWalden's Hornbillen
dc.subjectRufous-headed Hornbillen
dc.subjectTarictic Hornbillen
dc.subject.lcshHornbillsen
dc.subject.lcshRare birdsen
dc.subject.lcshEndangered speciesen
dc.subject.lcshBirds--Vocalizationen
dc.subject.lcshSound production by animalsen
dc.subject.lcshWildlife conservationen
dc.titlePotential for the use of vocal individuality as a conservation research tool in two threatened Philippine hornbill species, the Visayan Hornbill and the Rufous-headed Hornbillen
dc.typeArticleen
dcterms.accessRightsOpen accessen
dc.citation.journaltitleBird Conservation Internationalen
dc.citation.volume19en
dc.citation.issue1en
dc.citation.firstpage83en
dc.citation.lastpage97en
local.subject.scientificnamePenelopides panini paninien
local.subject.scientificnameAceros waldenien
local.subject.scientificnameRhabdotorrhinus waldenien
dc.identifier.essn1474-0001
dc.identifier.doi10.1017/S0959270908008228
local.isIndexedByISIen
local.isIndexedByScopusen
local.subject.agrovocbirdsen
dc.subject.sdgSDG 15 - Life on landen


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