Ontogeny of aerial righting and wing flapping in juvenile birds
| Autor: | Igor Krivitskiy, Sharlene Cam, Dennis Evangelista, Robert Dudley, Tony Huynh |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Ontogeny
Movement Zoology FOS: Physical sciences Biology Body roll flight origins Running Wings Juvenile Animals Wings Animal Biomechanics Physics - Biological Physics Galliformes development wing Evolutionary Biology Wing Hatching Animal manoeuvrability Age Factors Biological Sciences biology.organism_classification Other Quantitative Biology (q-bio.OT) Agricultural and Biological Sciences (miscellaneous) Quantitative Biology - Other Quantitative Biology Biomechanical Phenomena Biological Physics (physics.bio-ph) Flight FOS: Biological sciences Flight Animal Flapping Descent (aeronautics) General Agricultural and Biological Sciences Alectoris aerodynamics control |
| Zdroj: | Biology letters, vol 10, iss 8 |
| ISSN: | 1744-957X |
| Popis: | Mechanisms of aerial righting in juvenile chukar partridge ( Alectoris chukar ) were studied from hatching to 14 days-post-hatching (dph). Asymmetric movements of the wings were used from 1 to 8 dph to effect progressively more successful righting behaviour via body roll. Following 8 dph, wing motions transitioned to bilaterally symmetric flapping that yielded aerial righting via nose-down pitch, along with substantial increases in vertical force production during descent. Ontogenetically, the use of such wing motions to effect aerial righting precedes both symmetric flapping and a previously documented behaviour in chukar (i.e. wing-assisted incline running) hypothesized to be relevant to incipient flight evolution in birds. These findings highlight the importance of asymmetric wing activation and controlled aerial manoeuvres during bird development and are potentially relevant to understanding the origins of avian flight. |
| Databáze: | OpenAIRE |
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