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Unusually high-pitched neonate distress calls of the open-habitat Mongolian gazelle (Procapra gutturosa) and their anatomical and hormonal predictors
- Source :
- Die Naturwissenschaften. 104(5-6)
- Publication Year :
- 2017
-
Abstract
- In neonate ruminants, the acoustic structure of vocalizations may depend on sex, vocal anatomy, hormonal profiles and body mass and on environmental factors. In neonate wild-living Mongolian gazelles Procapra gutturosa, hand-captured during biomedical monitoring in the Daurian steppes at the Russian-Mongolian border, we spectrographically analysed distress calls and measured body mass of 22 individuals (6 males, 16 females). For 20 (5 male, 15 female) of these individuals, serum testosterone levels were also analysed. In addition, we measured relevant dimensions of the vocal apparatus (larynx, vocal folds, vocal tract) in one stillborn male Mongolian gazelle specimen. Neonate distress calls of either sex were high in maximum fundamental frequency (800–900 Hz), but the beginning and minimum fundamental frequencies were significantly lower in males than in females. Body mass was larger in males than in females. The levels of serum testosterone were marginally higher in males. No correlations were found between either body mass or serum testosterone values and any acoustic variable for males and females analysed together or separately. We discuss that the high-frequency calls of neonate Mongolian gazelles are more typical for closed-habitat neonate ruminants, whereas other open-habitat neonate ruminants (goitred gazelle Gazella subgutturosa, saiga antelope Saiga tatarica and reindeer Rangifer tarandus) produce low-frequency (
- Subjects :
- 0106 biological sciences
Larynx
Male
medicine.medical_specialty
Saiga tatarica
Physiology
010603 evolutionary biology
01 natural sciences
Russia
Gazella subgutturosa
Internal medicine
otorhinolaryngologic diseases
medicine
Animals
0501 psychology and cognitive sciences
050102 behavioral science & comparative psychology
Ecology, Evolution, Behavior and Systematics
Procapra
Testosterone
Ecosystem
biology
05 social sciences
General Medicine
Mongolia
biology.organism_classification
medicine.anatomical_structure
Endocrinology
Animals, Newborn
Antelopes
Mongolian gazelle
Vocal folds
Female
Vocalization, Animal
Vocal tract
Subjects
Details
- ISSN :
- 14321904
- Volume :
- 104
- Issue :
- 5-6
- Database :
- OpenAIRE
- Journal :
- Die Naturwissenschaften
- Accession number :
- edsair.doi.dedup.....8b573d1a24d209b3745c56b684b83a12