The aerodynamic costs of asymmetry in the wings and tail of birds: asymmetric birds can’t fly round tight corners
1993; Royal Society; Volume: 254; Issue: 1341 Linguagem: Inglês
10.1098/rspb.1993.0144
ISSN1471-2954
Autores Tópico(s)Evolution and Paleontology Studies
ResumoRestricted accessMoreSectionsView PDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmail Cite this article Thomas Adrian L. R. 1993The aerodynamic costs of asymmetry in the wings and tail of birds: asymmetric birds can't fly round tight cornersProc. R. Soc. Lond. B.254181–189http://doi.org/10.1098/rspb.1993.0144SectionRestricted accessArticleThe aerodynamic costs of asymmetry in the wings and tail of birds: asymmetric birds can't fly round tight corners Adrian L. R. Thomas Google Scholar Find this author on PubMed Search for more papers by this author Adrian L. R. Thomas Google Scholar Find this author on PubMed Published:22 December 1993https://doi.org/10.1098/rspb.1993.0144AbstractAsymmetry in the wings and tails of birds is an unusual trait in that, because of their aerodynamic function, the optimum phenotype for the trait is known: perfect symmetry. There is considerable variation from this optimum both within and between species. Here I use simple aerodynamic theory to predict the aerodynamic costs of asymmetry in the wings and tail, and to examine the relation between the length of the wings or tail, and the cost of given amounts of absolute asymmetry (equal to a given fixed length) and relative asymmetry (asymmetry equal to a given proportion of the length of the wings or tail). The aerodynamic analysis shows that wing asymmetry is much more costly than tail asymmetry, and asymmetry in the aerodynamically functional parts of the tail is more costly than asymmetry in ornaments such as tail streamers. The cost of wing asymmetry and of asymmetry in aerodynamically functional parts of the tail is unaffected or decreases with trait length. In contrast, the aerodynamic cost of asymmetry in tail ornaments increases with trait size. Much of the pattern of variation in the level of fluctuating asymmetry in the wings and tail can thus be explained by natural selection for aerodynamic efficiency.FootnotesThis text was harvested from a scanned image of the original document using optical character recognition (OCR) software. As such, it may contain errors. Please contact the Royal Society if you find an error you would like to see corrected. Mathematical notations produced through Infty OCR. Previous ArticleNext Article VIEW FULL TEXT DOWNLOAD PDF FiguresRelatedReferencesDetailsCited by MURAYAMA Y, NAKATA T and LIU H (2023) Aerodynamic performance of a bird-inspired morphing tail, Journal of Biomechanical Science and Engineering, 10.1299/jbse.22-00340, 18:1, (22-00340-22-00340), . 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