Diversity in sound pressure levels and estimated active space of resident killer whale vocalizations

@article{Miller2005DiversityIS,
  title={Diversity in sound pressure levels and estimated active space of resident killer whale vocalizations},
  author={Patrick J. O. Miller},
  journal={Journal of Comparative Physiology A},
  year={2005},
  volume={192},
  pages={449-459}
}
  • P. Miller
  • Published 11 January 2006
  • Biology, Medicine
  • Journal of Comparative Physiology A
Signal source intensity and detection range, which integrates source intensity with propagation loss, background noise and receiver hearing abilities, are important characteristics of communication signals. Apparent source levels were calculated for 819 pulsed calls and 24 whistles produced by free-ranging resident killer whales by triangulating the angles-of-arrival of sounds on two beamforming arrays towed in series. Levels in the 1–20 kHz band ranged from 131 to 168 dB re 1 μPa at 1 m, with… Expand
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References

SHOWING 1-10 OF 89 REFERENCES
A small towed beamforming array to identify vocalizing resident killer whales (Orcinus orca) concurrent with focal behavioral observations
TLDR
A device has been developed to identify individual vocalizing resident killer whales during focal behavioral observations using a 2-m, 15-element hydrophone array, which is easily towed behind a small vessel, on-board multi-channel recorders, and real-time signal processing equipment. Expand
ESTIMATED SOURCE LEVELS OF FIN WHALE (BALAENOPTERA PHYSALUS) VOCALIZATIONS: ADJUSTMENTS FOR SURFACE INTERFERENCE
We recorded a series of 34 fin whale vocalizations using four calibrated hydrophones in a towed array. The whale's location was determined using arrival-time differences of each call at theExpand
Mixed-directionality of killer whale stereotyped calls: a direction of movement cue?
  • P. Miller
  • Biology
  • Behavioral Ecology and Sociobiology
  • 2002
TLDR
The direction of movement cue inherent in the directionality pattern of calls may be an efficient and reliable means for this and possibly other highly mobile species to coordinate behavior and regulate spacing relative to other individuals. Expand
Sound transmission and its significance for animal vocalization
TLDR
Two facts mitigating against Morton's sound “window” as an explanation for lower frequencies in songs of forest as opposed to open country birds are presence of similar “windows” in both habitats and restriction of windows to a zone close to the ground in most habitats. Expand
Characteristics of whistles from the acoustic repertoire of resident killer whales (Orcinus orca) off Vancouver Island, British Columbia.
TLDR
The study indicates that whistles in wild killer whales serve a different function than whistles of other delphinids, suitable to function as close-range motivational sounds. Expand
UNDERWATER NOISE OF WHALE‐WATCHING BOATS AND POTENTIAL EFFECTS ON KILLER WHALES (ORCINUS ORCA), BASED ON AN ACOUSTIC IMPACT MODEL
Underwater noise of whale-watching boats was recorded in the popular killer whale-watching region of southern British Columbia and northwestern Washington State. A software sound propagation andExpand
Regulation of vocal amplitude by the blue-throated hummingbird, Lampornis clemenciae
TLDR
It is suggested that amplitude regulation of vocalizations contibutes to signal transmission distance along with the established relationships between singing behaviour, acoustic structure and habitat. Expand
Call-type matching in vocal exchanges of free-ranging resident killer whales, Orcinus orca
Previous sound recordings of resident (fish-eating) killer whale groups have revealed matrilineal groupspecific call repertoires and a strong tendency for calls of the same type to be produced inExpand
Matched-field processing, geoacoustic inversion, and source signature recovery of blue whale vocalizations.
TLDR
Four whales recorded on a 48-element tilted vertical array off the Channel Islands in 1996 displayed an unusual diversity of signals that include three strong frequency-modulated (FM) downsweeps which contain possible signs of an internal resonance. Expand
Environmental constraints on sound transmission by humpback whales.
TLDR
Simulations based on normal-mode theory used to investigate how the effects of shallow-water propagation constrain humpback whales' use of sound showed that humpbacks can greatly affect transmission range by adjusting their positions and sounds in response to environmental factors. Expand
...
1
2
3
4
5
...