Ostrich (<i>Struthio camelus</i>) syrinx morphology and vocal repertoire across postnatal ontogeny and sex: Implications for understanding vocal evolution in birds

doi:10.1111/joa.13992

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	*Ostrich (Struthio camelus) syrinx morphology and vocal repertoire across postnatal ontogeny and sex: Implications for understanding vocal evolution in birds*
	Chiappone, Michael 1,2; Rodriguez-Saltos, Carlos 1,3; Legendre, Lucas J.1; Li, Zhiheng1,4 ; Clarke, Julia 1
	2023-12-06
发表期刊	JOURNAL OF ANATOMY
ISSN	0021-8782
页码	16
通讯作者	Chiappone, Michael(mchiappone65@gmail.com) ; Clarke, Julia(julia_clarke@jsg.utexas.edu)
摘要	Vocal production in birds has been the target of considerable research that mostly has focused on phylogenetically well-nested songbirds. Anatomical descriptions and recordings of many non-songbirds have often only focused on a single ontogenetic stage or sex. While basic morphology of the vocal organ (syrinx) of ostrich (Palaeognathae, Struthio camelus) has been known since the 1800s, descriptions of its vocal repertoire and syrinx anatomy since then have been incomplete or inconsistent. New toolkits now enable detailed qualitative description of internal anatomy and meristic data and allow it to be compared to vocal production. Here we describe the anatomy of the syrinx in Struthio camelus for three post-hatching ontogenetic stages and both an adult male and female utilizing dissection and contrast enhanced X-ray computed tomography (diceCT). We find changes in ring geometry and spacing through ontogeny as well as lateral labia thickness. We document a small unpaired, midline, cartilaginous structure, a "pessuliform process" at the tracheobronchial juncture present throughout ontogeny and in both males and females. Investigation of the vocal repertoire of ostriches across ontogeny using a new dataset of 77 recordings led to identification of four vocalizations not previously reported in the literature, including the simultaneous production of a hiss and tonal. We find syrinx morphology largely consistent across ontogeny and in male and female adults. Both are capable of producing long duration tonal calls, but these may be more frequent in male birds. Closed-mouth boom calls remain unique to males. A detailed understanding of diversity in parts of early diverging clades is pivotal in attempting to estimate features of the ancestral syrinx in birds and how avian vocalization evolved.
关键词	diceCT enhanced contrast CT ostrich Paleognathae syrinx
DOI	10.1111/joa.13992
关键词[WOS]	FUNDAMENTAL-FREQUENCY ; SOUND PRODUCTION ; VOCALIZATIONS ; AMPLITUDE ; FLIGHT ; TRACT ; NOISE
收录类别	SCI
语种	英语
资助项目	Gordon and Betty Moore Foundation ; Howard Hughes Medical Institute Science Education Grant[GT10473] ; [4498]
项目资助者	Gordon and Betty Moore Foundation ; Howard Hughes Medical Institute Science Education Grant
WOS研究方向	Anatomy & Morphology
WOS类目	Anatomy & Morphology
WOS记录号	WOS:001114816500001
出版者	WILEY
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/23314
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Chiappone, Michael; Clarke, Julia
作者单位	1.Univ Texas Austin, Dept Geol Sci, Jackson Sch Geosci, Austin, TX 78712 USA 2.Univ Minnesota, Dept Earth & Environm Sci, Minneapolis, MN 55455 USA 3.Illinois State Univ, Sch Biol Sci, Normal, IL 61761 USA 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Chiappone, Michael,Rodriguez-Saltos, Carlos,Legendre, Lucas J.,et al. Ostrich (Struthio camelus) syrinx morphology and vocal repertoire across postnatal ontogeny and sex: Implications for understanding vocal evolution in birds[J]. JOURNAL OF ANATOMY,2023:16.
APA	Chiappone, Michael,Rodriguez-Saltos, Carlos,Legendre, Lucas J.,Li, Zhiheng,&Clarke, Julia.(2023).Ostrich (Struthio camelus) syrinx morphology and vocal repertoire across postnatal ontogeny and sex: Implications for understanding vocal evolution in birds.JOURNAL OF ANATOMY,16.
MLA	Chiappone, Michael,et al."Ostrich (Struthio camelus) syrinx morphology and vocal repertoire across postnatal ontogeny and sex: Implications for understanding vocal evolution in birds".JOURNAL OF ANATOMY (2023):16.