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Author Passilongo, D.; Mattioli, L.; Bassi, E.; Szabó, L.; Apollonio, M.
Title Visualizing sound: counting wolves by using a spectral view of the chorus howling Type Journal Article
Year 2015 Publication Frontiers in Zoology Abbreviated Journal Front. Zool.
Volume 12 Issue 1 Pages 22
Keywords
Abstract Monitoring large carnivores is a central issue in conservation biology. The wolf (Canis lupus) is the most studied large carnivore in the world. After a massive decline and several local extinctions, mostly due to direct persecutions, wolves are now recolonizing many areas of their historical natural range. One of the main monitoring techniques is the howling survey, which is based on the wolves' tendency to use vocalisations to mark territory ownership in response to howls of unknown individuals. In most cases wolf howling sessions are useful for the localisation of the pack, but they provide only an aural estimation of the chorus size.
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ISSN 1742-9994 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Passilongo2015 Serial 6498
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Author Passilongo, D.; Buccianti, A.; Dessi-Fulgheri, F.; Gazzola, A.; Zaccaronii, M.; Apollonio, M.
Title The Acoustic Structure Of Wolf Howls In Some Eastern Tuscany (Central Italy) Free Ranging Packs Type Journal Article
Year 2010 Publication Bioacoustics Abbreviated Journal Bioacoustics
Volume 19 Issue 3 Pages 159-175
Keywords Canis lupus, acoustic structure, mammal communication, sonogram, fundamental frequency.
Abstract Italian wolf howls are described for the first time from observations between 2003–2008 of a population living in eastern Tuscany, central Italy. A sample of 37 howls selected among single responses and 128 howls included in the choruses of 7 free ranging packs was recorded and analysed. The mean fundamental frequency of the howls ranged between 274–908 Hz. Two main structures recognised by means of multivariate explorative analysis, in particular Principal Component and Cluster Analysis, were ascribed to breaking and flat howls. Discriminant Function Analysis was applied to the recognised groups with the aim to find a general rule for classification. Howls with different features were correctly assigned to the groups obtained by explorative analysis in 95.8% of cases. The analysis of the variables characterising the structure of the howls suggests that maximum frequency and range of fundamental frequency are the most important parameters for classification, while duration does not appear to play any significant role.
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Call Number Equine Behaviour @ team @ Serial 6499
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Author Charif, R.A.; Waack, A.M.; Strickman, L.M.
Title Raven Pro 1.3 User's Manual Type Book Whole
Year 2008 Publication Abbreviated Journal
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Publisher (up) Cornell Laboratory of Ornithology Place of Publication Ithaca, New York Editor
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Notes Approved no
Call Number Equine Behaviour @ team @ Charif2008 Serial 6488
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Author Primack, R.B.
Title Essentials of conservation biology Type Book Whole
Year 2010 Publication Abbreviated Journal
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Publisher (up) Edition Place of Publication Fifth Editor
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Notes Approved no
Call Number Equine Behaviour @ team @ Primack2010 Serial 6444
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Author
Title Wolves in Europe: status and perspectives Type Book Whole
Year 1993 Publication Abbreviated Journal
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Publisher (up) Munich Wildlife Society Place of Publication Ettal, Germany Editor
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Call Number Equine Behaviour @ team @ ref8 Serial 6449
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Author Boitani, L.
Title Patterns of homesites attendance in two Minnesota wolf packs Type Book Chapter
Year 1982 Publication Wolves of the World: Perspectives of Behavior, Ecology and Conservation Abbreviated Journal
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Publisher (up) Noyes, Park Ridge Place of Publication New York Editor Harrington, F.H.; Paquet, P.C.
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Call Number Equine Behaviour @ team @ Boitani1982 Serial 6474
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Author Core Development Team, R.
Title R: a language and environment for statistical computing Type Book Whole
Year 2011 Publication Abbreviated Journal
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Publisher (up) R foundation for statistical computing Place of Publication Vienna, Austria Editor
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Notes Approved no
Call Number Equine Behaviour @ team @ Core Development Team2011 Serial 6489
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Author
Title Animal Acoustic Communication: Sound Analysis and Research Methods Type Book Whole
Year 1998 Publication Abbreviated Journal
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Publisher (up) Springer Place of Publication Berlin Editor
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Notes Approved no
Call Number Equine Behaviour @ team @ ref56 Serial 6497
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Author Mech, L.D.
Title The Wolf: The Ecology and Behaviour of an Endangered Species Type Book Whole
Year 1970 Publication Abbreviated Journal
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Publisher (up) The Natural History Press, Garden City Place of Publication New York Editor
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Notes Approved no
Call Number Equine Behaviour @ team @ Mech1970 Serial 6480
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Author Pimlott, D.H.
Title The use of tape-recorded wolf howls to locate timber wolves Type Book Whole
Year 1960 Publication Abbreviated Journal
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Publisher (up) Twenty-second Midwest Wildlife Congress Place of Publication Toronto Editor
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Notes Approved no
Call Number Equine Behaviour @ team @ Pimlott1960 Serial 6454
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