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| Content Provider | Springer Nature Link |
|---|---|
| Author | Goncharova, Maria V. Kleva, Anna V. Bragina, Evgenia V. |
| Copyright Year | 2015 |
| Abstract | Vocal individuality provides a method of personalization for multiple avian species. However, expression of individual vocal features depends on necessity of recognition. Here we focused on chick vocalizations of demoiselle, Siberian and red-crowned cranes that differ by their body size, developmental rates and some ecological traits. Cranes are territorial during summer, but gather in large flocks during autumn and winter. Nevertheless, parents keep feeding their chicks, even on winter grounds, despite the potential of confusing their own and alien chicks. Here we aimed to compare expression of individuality and sex in calls of three crane species between solitary and gregarious periods of a chick’s life, and between species. We found significant individual patterns of acoustic variables in the calls of all three species both before and after fledging. However, only red-crowned crane chicks increased expression of individuality significantly after the fledging. Also, we found that chicks of all three species significantly increased occurrence of non-linear phenomena, i.e., irregular oscillations of sound-producing membranes (biphonations, sidebands, and deterministic chaos), in their calls after fledging. Non-linear phenomena can be a way of increasing the potential for individual recognition as well as avoiding habituation of parents to their chicks’ calls. The older chicks are, the less their parents feed them, and chicks benefit from keeping the permanent attention of their parents in the course of early ontogeny. |
| Starting Page | 165 |
| Ending Page | 175 |
| Page Count | 11 |
| File Format | |
| ISSN | 02890771 |
| Journal | Journal of Ethology |
| Volume Number | 33 |
| Issue Number | 3 |
| e-ISSN | 14395444 |
| Language | English |
| Publisher | Springer Japan |
| Publisher Date | 2015-04-11 |
| Publisher Place | Tokyo |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Acoustic individual and sex features Vocal ontogeny Begging calls Chick’s vocal repertoire Demoiselle crane Siberian crane Red-crowned crane Zoology Behavioral Sciences Animal Ecology Evolutionary Biology Neurosciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
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