KMS Institute of Vertebrate Paleontology and Paleoanthropology
| Identification of avian flapping motion from non-volant winged dinosaurs based on modal effective mass analysis | |
| Talori, Yaser Saffar1; Zhao, Jing-Shan1; Liu, Yun-Fei1; Lu, Wen-Xiu1; Li, Zhi-Heng2; O'Connor, Jingmai Kathleen2 | |
| 2019-05-01 | |
| 发表期刊 | PLOS COMPUTATIONAL BIOLOGY
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| 卷号 | 15期号:5页码:16 |
| 摘要 | The origin of avian flight is one of the most controversial debates in Paleontology. This paper investigates the wing performance of Caudipteryx, the most basal non-volant dinosaur with pennaceous feathered forelimbs by using modal effective mass theory. From a mechanical standpoint, the forced vibrations excited by hindlimb locomotion stimulate the movement of wings, creating a flapping-like motion in response. This shows that the origin of the avian flight stroke should lie in a completely natural process of active locomotion on the ground. In this regard, flapping in the history of evolution of avian flight should have already occurred when the dinosaurs were equipped with pennaceous remiges and rectrices. The forced vibrations provided the initial training for flapping the feathered wings of theropods similar to Caudipteryx. Author summary The origin of avian flight in the perspective of mechanics has been investigated for the first time. We reported the first evidence for flapping hypothesis based on principle of physical modeling. This is significant because using modal effective mass method and reconstructed Caudipteryx, the most basal non-volant winged dinosaur, we captured significant and negligible modes and realized that resonance oscillation of Caudipteryx wings could occur as the running speed approached to the primary frequencies. Such forced vibrations induced by legs' motions during running trained the Caudipteryx and the other feathered dinosaurs to flap their wings. |
| DOI | 10.1371/journal.pcbi.1006846 |
| 关键词[WOS] | BIZARRE JURASSIC MANIRAPTORAN ; BIPEDAL RUNNING ABILITY ; SENSITIVITY-ANALYSIS ; FEATHERED DINOSAURS ; EARLY EVOLUTION ; ARCHAEOPTERYX ; FLIGHT ; BIRDS ; PALEONTOLOGY ; THEROPOD |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[51575291] ; National Major Science and Technology Project of China[2015ZX04002101] ; State Key Laboratory of Tribology, Tsinghua University ; 221 program of Tsinghua University |
| WOS研究方向 | Biochemistry & Molecular Biology ; Mathematical & Computational Biology |
| WOS类目 | Biochemical Research Methods ; Mathematical & Computational Biology |
| WOS记录号 | WOS:000471040500018 |
| 出版者 | PUBLIC LIBRARY SCIENCE |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/10002 |
| 专题 | 中科院古脊椎所（2000年以后） |
| 通讯作者 | Zhao, Jing-Shan |
| 作者单位 | 1.Tsinghua Univ, Dept Mech Engn, Beijing, Peoples R China 2.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Talori, Yaser Saffar,Zhao, Jing-Shan,Liu, Yun-Fei,et al. Identification of avian flapping motion from non-volant winged dinosaurs based on modal effective mass analysis[J]. PLOS COMPUTATIONAL BIOLOGY,2019,15(5):16. |
| APA | Talori, Yaser Saffar,Zhao, Jing-Shan,Liu, Yun-Fei,Lu, Wen-Xiu,Li, Zhi-Heng,&O'Connor, Jingmai Kathleen.(2019).Identification of avian flapping motion from non-volant winged dinosaurs based on modal effective mass analysis.PLOS COMPUTATIONAL BIOLOGY,15(5),16. |
| MLA | Talori, Yaser Saffar,et al."Identification of avian flapping motion from non-volant winged dinosaurs based on modal effective mass analysis".PLOS COMPUTATIONAL BIOLOGY 15.5(2019):16. |
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| journal.pcbi.1006846（2090KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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