Ultrasonic vocalizations in house mice:

Musolf, Kerstin; Penn, Dustin J.

doi:10.1017/cbo9781139044547.012

Cited by 16 publications

(3 citation statements)

References 140 publications

(193 reference statements)

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“…Dogs are also able to produce bi- and poly-phonations, including ultra-high frequencies [ 38 ], whose perception would benefit from an extended sensitivity in a broader range of frequencies. Moreover, as high frequencies are subjected to bigger attenuation [ 39 ], they can be heard only at a very close range; hence, they are used for short-range communication while avoiding eavesdropping from other group members. Sibiryakova and colleagues [ 38 ] investigated acoustical characteristics of whines in dogs and found ultra-high fundamental frequency that could reach 23 kHz.…”

Section: Discussionmentioning

confidence: 99%

Determining Hearing Thresholds in Dogs Using the Staircase Method

Guérineau,

Broseghini,

Lõoke

et al. 2024

Veterinary Sciences

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There is a growing interest in performing playback experiments to understand which acoustical cues trigger specific behavioral/emotional responses in dogs. However, very limited studies have focused their attention on more basic aspects of hearing such as sensitivity, i.e., the identification of minimal intensity thresholds across different frequencies. Most previous studies relied on electrophysiological methods for audiograms for dogs, but these methods are considered less accurate than assessments based on behavioral responses. To our knowledge, only one study has established hearing thresholds using a behavioral assessment on four dogs but using a method that did not allow potential improvement throughout the sessions. In the present study, we devised an assessment procedure based on a staircase method. Implying the adaptation of the assessed intensity on the dogs’ performance, this approach grants several assessments around the actual hearing threshold of the animal, thereby increasing the reliability of the result. We used such a method to determine hearing thresholds at three frequencies (0.5, 4.0, and 20.0 kHz). Five dogs were tested in each frequency. The hearing thresholds were found to be 19.5 ± 2.8 dB SPL at 0.5 kHz, 14.0 ± 4.5 dB SPL at 4.0 kHz, and 8.5 ± 12.8 dB SPL at 20.0 kHz. No improvement in performance was visible across the procedure. While the thresholds at 0.5 and 4.0 kHz were in line with the previous literature, the threshold at 20 kHz was remarkably lower than expected. Dogs’ ability to produce vocalization beyond 20 kHz, potentially used in short-range communication, and the selective pressure linked to intraspecific communication in social canids are discussed as potential explanations for the sensitivity to higher frequencies.

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Section: Discussionmentioning

confidence: 99%

Determining Hearing Thresholds in Dogs Using the Staircase Method

Guérineau,

Broseghini,

Lõoke

et al. 2024

Veterinary Sciences

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“…Because high frequencies have greater directionality, greater attenuation, greater scattering, and decreased localizability than low frequencies ( Musolf and Penn 2012 ), the ultra-high frequency (h0) can only be heard at close range. Dogs may be able to use the ultra-high frequency for private communication “tete-a-tete” with preferred pack members, just as Wilson and Hare (2004 , 2006 ) suggested for ultrasonic alarm calls of Richardson’s ground squirrels limiting receivers to close kin.…”

Section: Discussionmentioning

confidence: 99%

Polyphony of domestic dog whines and vocal cues to body size

2020

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In domestic dogs Canis familiaris, vocal traits have been investigated for barks and growls, and the relationship between individual body size and vocal traits investigated for growls, with less corresponding information for whines. In this study, we examined frequency and temporal traits of whines of 20 adult companion dogs (9 males, 11 females), ranging in body weight from 3.5 to 70.0 kg and belonging to 16 breeds. Dog whines (26–71 per individual, 824 in total) were recorded in conditioned begging contexts modeled by dog owners. Whines had three independent fundamental frequencies: the low, the high and the ultra-high that occurred singly as monophonic calls or simultaneously as two-voice biphonic or three-voice polyphonic calls. From the smallest to largest dog, the upper frequency limit varied from 0.24 to 2.13 kHz for the low fundamental frequency, from 2.95 to 10.46 kHz for the high fundamental frequency and from 9.99 to 23.26 kHz for the ultra-high fundamental frequency. Within individuals, the low fundamental frequency was lower in monophonic than in biphonic whines, whereas the high fundamental frequency did not differ between those whine types. All frequency variables of the low, high and ultra-high fundamental frequencies correlated negatively with dog body mass. For duration, no correlation with body mass was found. We discuss potential production mechanisms and sound sources for each fundamental frequency; point to the acoustic similarity between high-frequency dog whines and rodent ultrasonic calls and hypothesize that ultra-high fundamental frequencies function to allow private, “tete-a-tete” communication between members of social groups.

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“…Given these facts, it is expected that postnatal calcification of the laryngeal cartilages would improve the sound frequency in mammals. It should be noted that rats and mice also employ the ultrasonic vocalizations (USVs) [ 53 ], but unlike laryngeally echolocating bats, they do not possess the superfast muscle in their larynx. Thus, the postnatal calcification dynamics of the laryngeal cartilages are predicted to be qualitatively deviated in laryngeally echolocating bats against mice.…”

Section: Introductionmentioning

confidence: 99%

Development of the hyolaryngeal architecture in horseshoe bats: insights into the evolution of the pulse generation for laryngeal echolocation

Nojiri,

Takechi,

Furutera

et al. 2024

EvoDevo

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Background The hyolaryngeal apparatus generates biosonar pulses in the laryngeally echolocating bats. The cartilage and muscles comprising the hyolarynx of laryngeally echolocating bats are morphologically modified compared to those of non-bat mammals, as represented by the hypertrophied intrinsic laryngeal muscle. Despite its crucial contribution to laryngeal echolocation, how the development of the hyolarynx in bats differs from that of other mammals is poorly documented. The genus Rhinolophus is one of the most sophisticated laryngeal echolocators, with the highest pulse frequency in bats. The present study provides the first detailed description of the three-dimensional anatomy and development of the skeleton, cartilage, muscle, and innervation patterns of the hyolaryngeal apparatus in two species of rhinolophid bats using micro-computed tomography images and serial tissue sections and compares them with those of laboratory mice. Furthermore, we measured the peak frequency of the echolocation pulse in active juvenile and adult individuals to correspond to echolocation pulses with hyolaryngeal morphology at each postnatal stage. Results We found that the sagittal crests of the cricoid cartilage separated the dorsal cricoarytenoid muscle in horseshoe bats, indicating that this unique morphology may be required to reinforce the repeated closure movement of the glottis during biosonar pulse emission. We also found that the cricothyroid muscle is ventrally hypertrophied throughout ontogeny, and that the cranial laryngeal nerve has a novel branch supplying the hypertrophied region of this muscle. Our bioacoustic analyses revealed that the peak frequency shows negative allometry against skull growth, and that the volumetric growth of all laryngeal cartilages is correlated with the pulse peak frequency. Conclusions The unique patterns of muscle and innervation revealed in this study appear to have been obtained concomitantly with the acquisition of tracheal chambers in rhinolophids and hipposiderids, improving sound intensity during laryngeal echolocation. In addition, significant protrusion of the sagittal crest of the cricoid cartilage and the separated dorsal cricoarytenoid muscle may contribute to the sophisticated biosonar in this laryngeally echolocating lineage. Furthermore, our bioacoustic data suggested that the mineralization of these cartilages underpins the ontogeny of echolocation pulse generation. The results of the present study provide crucial insights into how the anatomy and development of the hyolaryngeal apparatus shape the acoustic diversity in bats.

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Ultrasonic vocalizations in house mice:

Cited by 16 publications

References 140 publications

Determining Hearing Thresholds in Dogs Using the Staircase Method

Determining Hearing Thresholds in Dogs Using the Staircase Method

Polyphony of domestic dog whines and vocal cues to body size

Development of the hyolaryngeal architecture in horseshoe bats: insights into the evolution of the pulse generation for laryngeal echolocation

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