Functional Design And Use Of Acoustic Signals Produced By Killer Whales Orcinus Orca PDF Download
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Author | : Filipa Isabel Pereira Samarra |
Publisher | : |
Total Pages | : 0 |
Release | : 2011 |
Genre | : Killer whale |
ISBN | : |
Download Functional Design and Use of Acoustic Signals Produced by Killer Whales (Orcinus Orca) Book in PDF, ePub and Kindle
Author | : Patrick J. O. Miller |
Publisher | : |
Total Pages | : 614 |
Release | : 2000 |
Genre | : Animal communication |
ISBN | : |
Download Maintaining Contact Book in PDF, ePub and Kindle
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Total Pages | : |
Release | : 2000 |
Genre | : |
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Download Maintaining Contact Book in PDF, ePub and Kindle
Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy at the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution September 2000.
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Total Pages | : 154 |
Release | : 2000 |
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Download Maintaining contact : design and use of acoustic signals in killer whales, orcinus orca Book in PDF, ePub and Kindle
This thesis describes the structure and use of acoustic signals produced by resident killer whales off Vancouver Island. Calling of isolated subpods differed similarly but more subtly than across pods, suggesting that pod-specific calling arises as a consequence of drift between subgroups as they gradually separate into different pods. A towed array beamforming system was developed to identify vocalizing killer whales concurrent with focal behavioral observations. A sample of 140 calls was recorded from three members of one matrilineal subgroup showing they shared at least four call types, suggesting matrilineal group members use calls in a similar fashion. Source levels measured using two beamforming arrays towed in series were combined with a model of sound propagation and perception to estimate the maximum range of detectability of each sound in quiet conditions. The estimated range of 4.5 to 26.2 km suggests killer whales can maintain acoustic contact over long distances. The frequency structure of 263 calls recorded directly in front and behind animals depended on signaler orientation, with high-frequencies attenuated when the signaler was oriented away. This directionality pattern appears to provide a simple and reliable cue of signaler direction-of-movement, helping killer whales regulate their spacing relative to each other.
Author | : Yngve Espmark |
Publisher | : Tapir Academic Press |
Total Pages | : 504 |
Release | : 2000 |
Genre | : Science |
ISBN | : 9788251915458 |
Download Animal Signals Book in PDF, ePub and Kindle
How can we explain the peacock's beautiful tail decorations, or the wonderful song of the nightingale? Why are some smells nice and others nasty? How do animals signal their intentions and qualities to potential partners? How do offspring tell parents about their needs? Are signals tuned to the environment, and to the mental abilities of receivers? Essential for understanding how animals cope with their ecological and social environment, the study of animal signals is one of the most active research areas in evolutionary biology. Understanding the signalling systems of nature has wide-ranging relevance including biological conservation and human communication. Written by international scientists, this is a comprehensive overview of the fascinating diversity of animal signals and signalling functions. Combining reviews and research, the book is aimed at both students and professional scientists.
Author | : Malene Juul Simon |
Publisher | : |
Total Pages | : 122 |
Release | : 2004 |
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Download Sounds Produced by Foraging Killer Whales (Orcinus Orca). Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 340 |
Release | : 1998 |
Genre | : Animal sounds |
ISBN | : |
Download Distinctions in Sound Patterns of Calls by Killer Whales (Orcinus Orca) from Analysis of Computer Sound Features Book in PDF, ePub and Kindle
Author | : Marla M. Holt |
Publisher | : |
Total Pages | : 59 |
Release | : 2008 |
Genre | : Killer whale |
ISBN | : |
Download Sound Exposure and Southern Resident Killer Whales (Orcinus Orca) Book in PDF, ePub and Kindle
Author | : Dawn M. Grebner |
Publisher | : |
Total Pages | : 252 |
Release | : 2002 |
Genre | : Killer whale |
ISBN | : |
Download The Acoustic Repertoire of a Killer Whale, Orcinus Orca Book in PDF, ePub and Kindle
Author | : William A. Watkins |
Publisher | : |
Total Pages | : 0 |
Release | : 1998 |
Genre | : Bioacoustics |
ISBN | : |
Download Distinctions in Sound Patterns of Calls by Killer Whales (Orcinus Orca) from Analysis of Computed Sound Features Book in PDF, ePub and Kindle
Calls of killer whales, Orcinus Orca, were analyzed using computed sound features to classify sound patterns and identify call similarities. Calls were classified and separated according to the pod/family group within clans identified previously by John Ford (U. BC) in the Vancouver whale populations. Acoustic characteristics of the same call type from different individuals were extremely similar, so that discriminating these different sounds was the goal. The WHOl AcouStat program and associated database systems were used to define numerical statistics for each call, and then, these were compared to sort and classify the sounds.