|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ИНХС РАН |
||
Camel whistling vocalisations: male and female call structure and context in Camelus bactrianus and Camelus dromedariusстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 1 июня 2022 г.
- Авторы: Volodin I.A., Volodina E.V., Rutovskaya M.V.
- Журнал: Bioacoustics
- Том: 31
- Номер: 2
- Год издания: 2022
- Издательство: A B Academic Publishers
- Местоположение издательства: United Kingdom
- Первая страница: 132
- Последняя страница: 147
- DOI: 10.1080/09524622.2021.1889403
- Аннотация: Among ruminants, some species of cervids, bovids and camelids are capable of producing very high-frequency (HF) calls potentially produced by the aerodynamic whistle mechanism. We analysed the HF calls of six individual adult captive camels, three male and one female two-humped Camelus bactrianus and one male and one female one-humped C. dromedarius. Context of emission differed between sexes and individuals. Males of both species vocalized when guarding females during the rut. Females of both species vocalized towards their mates, postpartum (female C. bactrianus) or when protesting against preventing locomotion over enclosure (female C. dromedarius). In either species or sex, the HF calls were faint tonal vocalizations slightly modulated in fundamental frequency (f0). Between species, the calls were significantly lower-frequency (1.7 ± 0.16 kHz) and longer (0.23 ± 0.08 s) in C. bactrianus than in C. dromedarius (3.12 ± 0.11 kHz; 0.16 ± 0.05 s). Nonlinear vocal phenomena (subharmonics and sidebands) occurred in both species but not in all individuals. We discuss the relationship of the f0 of the HF calls with body size and vocal fold length in ruminants. We conclude that the “whistling” HF calls of C. dromedarius are the highest-frequency vocalizations in Artiodactyla.
- Добавил в систему: Володин Илья Александрович