CHARACTERISTICS OF THE VOCALIZATIONS OF RED DEER<i>CERVUS ELAPHUS</i>HINDS AND CALVES

Vaňková, Dominika; Málek, Jan

doi:10.1080/09524622.1997.9753340

Cited by 28 publications

(17 citation statements)

References 14 publications

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“…(over 500 Hz) neonate calls reported for other ruminant species (Antilocapridae (Teichroeb et al, 2013), Cervidae (Bogomolova, Kurochkin, & Nikol'skii, 1984;Kidjo, Cargnelutti, Charlton, Wilson, & Reby, 2008;Lingle et al, 2012;Sibiryakova et al, 2015;Teichroeb et al, 2013;Torriani et al, 2006;Vaňková & Málek, 1997;Volodin, Sibiryakova, & Volodina, 2016) and…”

Section: Discussionmentioning

confidence: 96%

Individuality of distress and discomfort calls in neonates with bass voices: Wild‐living goitred gazelles (Gazella subgutturosa) and saiga antelopes (Saiga tatarica)

et al. 2017

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Neonate ruminants produce distress calls when captured by a predator and discomfort milk begging calls when hungry. In many neonate ruminants, the distress and discomfort calls are high‐frequency vocalizations, in which the fundamental frequency is the key variable for recognition of their emotional arousal by caregivers. In contrast, in this study, we examine the low‐frequency open‐mouth distress and discomfort calls in the neonates of two species of wild‐living ungulates, which clearly highlight vocal tract resonances (formants). In the goitred gazelle (Gazella subgutturosa), the distress calls were higher in fundamental frequency (f0) and in the first and third formants than the discomfort calls. The accuracy of classifying individuals by variables of distress calls with discriminant function analysis (67%) was significantly lower than that of discomfort calls (85%). In the saiga (Saiga tatarica), only the third formant was higher in the distress calls than in the discomfort calls. The accuracy of classifying individuals by variables of distress calls (89%) did not differ significantly from that of discomfort calls (94%). Thus, the use of acoustic cues to vocal identity and to the degree of arousal differs between the two species. Calls were significantly more individualistic in the saiga, probably because this species lives in large herds and neonates use a ‘following’ antipredatory strategy, in which vocal individuality is crucial for mother–offspring communication. In contrast, goitred gazelles live in smaller groups and neonates use a ‘hiding’ antipredatory strategy. Accordingly, mothers can rely on additional environmental cues for spotting their young and this may decrease the necessity for individualization of the calls of neonates.

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Section: Discussionmentioning

confidence: 96%

Individuality of distress and discomfort calls in neonates with bass voices: Wild‐living goitred gazelles (Gazella subgutturosa) and saiga antelopes (Saiga tatarica)

et al. 2017

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“…In ungulates, the fundamental frequency has primarily contributed to vocal identity, as exemplified by mother and young fallow deer Dama dama [ 20 ], red deer Cervus elaphus [ 28 ], domestic sheep Ovis aries [ 29 ]; goats Capra hircus [ 17 , 18 ], in the young of reindeer Rangifer tarandus [ 30 ], white-tailed deer Odocoileus virginianus [ 21 ], mule deer O. hemionus [ 21 ], and goitred gazelles Gazella subgutturosa [ 31 , 32 ]. Formant frequencies play a role in encoding individual identity in the young of goitred gazelles [ 31 ] and reindeer [ 30 ], in red deer hinds [ 28 ], and in mother and young domestic goats [ 18 ]. Call duration proved significant in encoding individual identity in mother and young red deer [ 28 ] and domestic sheep [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

The power of oral and nasal calls to discriminate individual mothers and offspring in red deer, Cervus elaphus

et al. 2015

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BackgroundIn most species, acoustical cues are crucial for mother-offspring recognition. Studies of a few species of ungulates showed that potential for individual recognition may differ between nasal and oral contact calls.ResultsVocalizations of 28 hinds and 31 calves of farmed Iberian red deer (Cervus elaphus hispanicus) were examined with discriminant function analyses (DFA) to determine whether acoustic structure of their oral and nasal contact calls encodes information about the caller’s identity. Contact calls were elicited by brief separation of individually identified animals by a distance over 10 m or by a bar fence. Both oral and nasal calls of both hinds and calves showed high potential to discriminate individuals. In hinds, individuality was significantly higher in the oral than in the nasal calls, whereas in calves, individuality was equally well expressed in both oral and nasal calls. For calves, the maximum fundamental frequency was higher and the duration was longer in oral calls than in nasal calls. For hinds, the maximum fundamental frequency and the duration were indistinguishable between oral and nasal calls. Compared to the pooled sample of oral and nasal calls, separate oral or nasal call samples provided better classifying accuracy to individual in either hinds or calves. Nevertheless, in both hinds and calves, even in the pooled sample of oral and nasal calls, the degree of individual identity was 2–3 times greater than expected by chance. For hinds that provided calls in both years, cross-validation of calls collected in 2012 with discriminant functions created with calls from 2011 showed a strong decrease of classifying accuracy to individual.ConclusionsThese results suggest different potentials of nasal and oral calls to allow the discrimination of individuals among hinds, but not among red deer calves. The high potential of individual recognition even with the pooled sample of oral and nasal calls allows mother and young to remember only one set of acoustic variables for mutual vocal recognition. Poor between-year stability of individual characteristics of hind oral and nasal calls would require updating keys to individual recognition each calving season.Electronic supplementary materialThe online version of this article (doi:10.1186/s12983-014-0094-5) contains supplementary material, which is available to authorized users.

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“…2003), representing species in which juveniles are constantly with their mothers but eventually in mixed groups with other offspring of the same age. In red deer ( Cervus elaphus ) and fallow deer ( Dama dama ), however, mainly the juveniles recognize their mothers by voice but not vice versa (Vankova & Malek 1997; Vannoni et al. 2005; Torriani et al.…”

Section: Introductionmentioning

confidence: 99%

Nasal and Oral Calls in Juvenile Goitred Gazelles (Gazella subgutturosa) and their Potential to Encode Sex and Identity

Volodin

Lapshina

Volodina³

et al. 2011

Ethology

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Like many other gazelles, goitred gazelles (Gazella subgutturosa) are capable of calling either through the nose or through the open mouth. In particular, juvenile goitred gazelles provide a convenient model for contrasting acoustic characteristics of nasal and oral calls, and for estimating their communicative functions. In this study, acoustic variables (formants, fundamental frequency, duration and power quartiles) of 480 oral and 483 nasal calls, recorded from 20 (9 male, 11 female) individually identified captive juvenile goitred gazelles, were examined for their potential to encode sex and identity of the caller. Discriminant function analysis revealed an equally high potential of oral and nasal calls to encode sex, whereas encoding the individual identity was significantly more accurate for oral calls. Sex was encoded exclusively in formants, whilst individual identity was encoded in a combination of all investigated variables. No correlation was found between body mass and values of any acoustic variable. Analyses controlling for age and sex revealed higher average values for all investigated variables of oral calls compared to nasal calls. We discuss the results in relation to the source‐filter theory, mother–offspring communication and production mechanisms of nasal and oral calls in mammals.

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CHARACTERISTICS OF THE VOCALIZATIONS OF RED DEERCERVUS ELAPHUSHINDS AND CALVES

Cited by 28 publications

References 14 publications

Individuality of distress and discomfort calls in neonates with bass voices: Wild‐living goitred gazelles (Gazella subgutturosa) and saiga antelopes (Saiga tatarica)

Individuality of distress and discomfort calls in neonates with bass voices: Wild‐living goitred gazelles (Gazella subgutturosa) and saiga antelopes (Saiga tatarica)

The power of oral and nasal calls to discriminate individual mothers and offspring in red deer, Cervus elaphus

Nasal and Oral Calls in Juvenile Goitred Gazelles (Gazella subgutturosa) and their Potential to Encode Sex and Identity

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