A quantitative measure of similarity for <i>tursiops</i> <i>truncatus</i> signature whistles

Buck, John R.; Tyack, Peter L.

doi:10.1121/1.407385

Cited by 109 publications

(95 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The cross-correlation test used in this analysis was modified slightly from those described in other studies of signature vocalizations ͑e.g., Buck and Tyack, 1993;Janik, 1999;Watwood et al, 2005͒. In general, similarity between whistle contours can result either coarsely from a general overlap in frequency range and/or more finely from comparable frequency modulation ͑e.g., loop number, overall shape͒.…”

Section: Discussionmentioning

confidence: 99%

Preliminary evidence for signature vocalizations among free-ranging narwhals (Monodon monoceros)

Shapiro

2006

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

Animal signature vocalizations that are distinctive at the individual or group level can facilitate recognition between conspecifics and re-establish contact with an animal that has become separated from its associates. In this study, the vocal behavior of two free-ranging adult male narwhals ͑Monodon monoceros͒ in Admiralty Inlet, Baffin Island was recorded using digital archival tags. These recording instruments were deployed when the animals were caught and held onshore to attach satellite tags, a protocol that separated them from their groups. The signature content of two vocal categories was considered: ͑1͒ combined tonal/pulsed signals, which contained synchronous pulsatile and tonal content; ͑2͒ whistles, or frequency modulated tonal signals with harmonic energy. Nonparametric comparisons of the temporal and spectral features of each vocal class revealed significant differences between the two individuals. A separate, cross-correlation measure conducted on the whistles that accounted for overall contour shape and absolute frequency content confirmed greater interindividual compared to intraindividual differences. These data are consistent with the hypothesis that narwhals produce signature vocalizations that may facilitate their reunion with group members once they become separated, but additional data are required to demonstrate this claim more rigorously.

show abstract

Section: Discussionmentioning

confidence: 99%

Preliminary evidence for signature vocalizations among free-ranging narwhals (Monodon monoceros)

Shapiro

2006

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

show abstract

“…Various approaches for vocalization classification have been applied to birds, land and marine mammals, including the application to acoustic censusing [62]. In cetaceans, various techniques have been employed in vocalization classification from their cepstral features including dynamic time warping [63], neural network [64], Gaussian mixture models, hidden Markov models [65], multi-class support vector machine model [66], and multivariate discriminant analysis [67]. Here we employ pitch-tracking to extract key features of humpback D-moan vocalizations and apply the centroid-based K-means [68] method to classify them.…”

Section: Discussionmentioning

confidence: 99%

Diel and Spatial Dependence of Humpback Song and Non-Song Vocalizations in Fish Spawning Ground

Huang¹,

Wang²,

Ratilal³

2016

Remote Sensing

View full text Add to dashboard Cite

Abstract:The vocalization behavior of humpback whales was monitored over vast areas of the Gulf of Maine using the passive ocean acoustic waveguide remote sensing technique (POAWRS) over multiple diel cycles in Fall 2006. The humpback vocalizations comprised of both song and non-song are analyzed. The song vocalizations, composed of highly structured and repeatable set of phrases, are characterized by inter-pulse intervals of 3.5 ± 1.8 s. Songs were detected throughout the diel cycle, occuring roughly 40% during the day and 60% during the night. The humpback non-song vocalizations, dominated by shorter duration (≤3 s) downsweep and bow-shaped moans, as well as a small fraction of longer duration (∼5 s) cries, have significantly larger mean and more variable inter-pulse intervals of 14.2 ± 11 s. The non-song vocalizations were detected at night with negligible detections during the day, implying they probably function as nighttime communication signals. The humpback song and non-song vocalizations are separately localized using the moving array triangulation and array invariant techniques. The humpback song and non-song moan calls are both consistently localized to a dense area on northeastern Georges Bank and a less dense region extended from Franklin Basin to the Great South Channel. Humpback cries occur exclusively on northeastern Georges Bank and during nights with coincident dense Atlantic herring shoaling populations, implying the cries are feeding-related.

show abstract

“…Buck and Tyack, 1993;Clark et al, 1987;Mitani and Marler, 1989;Nowicki and Nelson, 1990;Rendell and Whitehead, 2003;Young et al, 1999). Additionally, the majority of this work has focused only on three species within the Batrachoididae (O. beta, O. tau and P. notatus) (Amorim, 2006;Bass and McKibben, 2003), despite the moderate diversity of the family, which contains 25 genera and 78 species (Greenfield et al, 2008) (see also Nelson, 2006).…”

Section: Introductionmentioning

confidence: 99%

Novel vocal repertoire and paired swimbladders of the three-spined toadfish,Batrachomoeus trispinosus: insights into the diversity of the Batrachoididae

Rice

Bass

2009

Journal of Experimental Biology

View full text Add to dashboard Cite

SUMMARYToadfishes (Teleostei: Batrachoididae) are one of the best-studied groups for understanding vocal communication in fishes. However, sounds have only been recorded from a low proportion of taxa within the family. Here, we used quantitative bioacoustic, morphological and phylogenetic methods to characterize vocal behavior and mechanisms in the three-spined toadfish, Batrachomoeus trispinosus. B. trispinosus produced two types of sound: long-duration 'hoots' and short-duration 'grunts' that were multiharmonic, amplitude and frequency modulated, with a dominant frequency below 1 kHz. Grunts and hoots formed four major classes of calls. Hoots were typically produced in succession as trains, while grunts occurred either singly or as grunt trains. Aside from hoot trains, grunts and grunt trains, a fourth class of calls consisted of single grunts with acoustic beats, apparently not previously reported for individuals from any teleost taxon. Beats typically had a predominant frequency around 2 kHz with a beat frequency around 300 Hz. Vocalizations also exhibited diel and lunar periodicities. Spectrographic crosscorrelation and principal coordinates analysis of hoots from five other toadfish species revealed that B. trispinosus hoots were distinct. Unlike any other reported fish, B. trispinosus had a bilaterally divided swimbladder, forming two separate swimbladders. Phylogenetic analysis suggested B. trispinosus was a relatively basal batrachoidid, and the swimbladder and acoustic beats were independently derived. The swimbladder in B. trispinosus demonstrates that toadfishes have undergone a diversification of peripheral sonic mechanisms, which may be responsible for the concomitant innovations in vocal communication, namely the individual production of acoustic beats as reported in some tetrapods. Supplementary material available online at

show abstract

A quantitative measure of similarity for tursiops truncatus signature whistles

Cited by 109 publications

References 0 publications

Preliminary evidence for signature vocalizations among free-ranging narwhals (Monodon monoceros)

Preliminary evidence for signature vocalizations among free-ranging narwhals (Monodon monoceros)

Diel and Spatial Dependence of Humpback Song and Non-Song Vocalizations in Fish Spawning Ground

Novel vocal repertoire and paired swimbladders of the three-spined toadfish,Batrachomoeus trispinosus: insights into the diversity of the Batrachoididae

Contact Info

Product

Resources

About