The traits of the great calls in the juvenile and adolescent gibbon males Nomascus gabriellae

Knowledge about vocal ontogeny and vocal plasticity during ontogeny in primate species is central to understanding the evolution of human speech. Vocalizations in gibbons (Hominoidea) are very interesting and contain complex species- and sex-specific patterns. However, ontogeny of gibbon songs is li...

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Veröffentlicht in:PloS one 2017-03, Vol.12 (3), p.e0173959-e0173959
Hauptverfasser: Hradec, Michal, Linhart, Pavel, Bartoš, Luděk, Bolechová, Petra
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description Knowledge about vocal ontogeny and vocal plasticity during ontogeny in primate species is central to understanding the evolution of human speech. Vocalizations in gibbons (Hominoidea) are very interesting and contain complex species- and sex-specific patterns. However, ontogeny of gibbon songs is little studied. Here, we document regular production and ontogenetic changes of female-specific "great call" in 4 immature (2 juvenile-c.a. 3 years old; and 2 adolescent-c.a. 5 years old) males of southern yellow-cheeked gibbon (N. gabriellae) over nine months. None of the males produced fully developed adult-like "great call" and little ontogenetic changes to "great calls" occurred. "Great calls" of sons were shorter, started higher and ended lower than those of their mothers. Regular production of twitter part of great call likely appears around 4th year as it was observed in adolescent but not in juvenile males.
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subjects Acoustics
Animal Communication
Animal sciences
Animals
Biological evolution
Biology and Life Sciences
Female
Females
Genetic aspects
Golden-cheeked gibbon
Hylobates
Hylobates - physiology
Hylobates gabriellae
Life sciences
Male
Males
Monkeys & apes
Nomascus gabriellae
Ontogeny
People and Places
Physical Sciences
Physiological aspects
Social networks
Social Sciences
Speech
Teenagers
Zoology
title The traits of the great calls in the juvenile and adolescent gibbon males Nomascus gabriellae
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