Stability and change of killer whale (Orcinus orca) dialects ...
Vocal dialects have been described in many species, but most studies so far have focused on territorial species such as songbirds and humans. This study investigates patterns of structural variation in the stereotyped calls of 9 matrilineal units of killer whales (Orcinusorca) with congruent home ra...
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ftdatacite:10.14288/1.0074826 2024-04-28T08:27:20+00:00 Stability and change of killer whale (Orcinus orca) dialects ... Deeke, Volker Bernt 2009 https://dx.doi.org/10.14288/1.0074826 https://doi.library.ubc.ca/10.14288/1.0074826 en eng University of British Columbia article-journal Text ScholarlyArticle 2009 ftdatacite https://doi.org/10.14288/1.0074826 2024-04-02T09:41:17Z Vocal dialects have been described in many species, but most studies so far have focused on territorial species such as songbirds and humans. This study investigates patterns of structural variation in the stereotyped calls of 9 matrilineal units of killer whales (Orcinusorca) with congruent home ranges. In Chapter I, I describe an index of acoustic similarity based on neural network analysis of frequency contours. I test this index on simulated signals, and compare it to similarity ratings from three human subjects. The index could discriminate along global differences in contour frequency, as well as localized differences in frequency and shape. It rated similarity comparably to humans, since differences between ratings among subjects exceeded differences between subject ratings and the neural network index. In the second Chapter, I analyse 2 call types used by 2 groups over a 12 year period to identify mechanisms of vocal differentiation. A test for structural modification detected significant changes in ... Text Killer Whale Orca Orcinus orca Killer whale DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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English |
description |
Vocal dialects have been described in many species, but most studies so far have focused on territorial species such as songbirds and humans. This study investigates patterns of structural variation in the stereotyped calls of 9 matrilineal units of killer whales (Orcinusorca) with congruent home ranges. In Chapter I, I describe an index of acoustic similarity based on neural network analysis of frequency contours. I test this index on simulated signals, and compare it to similarity ratings from three human subjects. The index could discriminate along global differences in contour frequency, as well as localized differences in frequency and shape. It rated similarity comparably to humans, since differences between ratings among subjects exceeded differences between subject ratings and the neural network index. In the second Chapter, I analyse 2 call types used by 2 groups over a 12 year period to identify mechanisms of vocal differentiation. A test for structural modification detected significant changes in ... |
format |
Text |
author |
Deeke, Volker Bernt |
spellingShingle |
Deeke, Volker Bernt Stability and change of killer whale (Orcinus orca) dialects ... |
author_facet |
Deeke, Volker Bernt |
author_sort |
Deeke, Volker Bernt |
title |
Stability and change of killer whale (Orcinus orca) dialects ... |
title_short |
Stability and change of killer whale (Orcinus orca) dialects ... |
title_full |
Stability and change of killer whale (Orcinus orca) dialects ... |
title_fullStr |
Stability and change of killer whale (Orcinus orca) dialects ... |
title_full_unstemmed |
Stability and change of killer whale (Orcinus orca) dialects ... |
title_sort |
stability and change of killer whale (orcinus orca) dialects ... |
publisher |
University of British Columbia |
publishDate |
2009 |
url |
https://dx.doi.org/10.14288/1.0074826 https://doi.library.ubc.ca/10.14288/1.0074826 |
genre |
Killer Whale Orca Orcinus orca Killer whale |
genre_facet |
Killer Whale Orca Orcinus orca Killer whale |
op_doi |
https://doi.org/10.14288/1.0074826 |
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1797586348157173760 |