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Fossil evidence sheds light on sexual selection during the early evolution of birds

文献类型：期刊论文

作者Zhou, Yibo4,5; Pan, Yanhong4,5; Wang, Min3; Wang, Xiaoli1,2; Zheng, Xiaoting1,2; Zhou, Zhonghe3
刊名PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
出版日期2024-01-16
卷号121期号:3页码:9
关键词Aves sexual dimorphism Mesozoic sexual selection allometry
ISSN号0027-8424
DOI10.1073/pnas.2309825120
通讯作者Pan, Yanhong(panyanhong@nju.edu.cn) ; Wang, Min(wangmin@ivpp.ac.cn) ; Zhou, Zhonghe(zhouzhonghe@ivpp.ac.cn)
英文摘要The impact of sexual selection on the evolution of birds has been widely acknowledged. Although sexual selection has been hypothesized as a driving force in the occurrences of numerous morphological features across theropod evolution, this hypothesis has yet to be comprehensively tested due to challenges in identifying the sex of fossils and by the limited sample size. Confuciusornis sanctus is arguably the best-known early avialan and is represented by thousands of well-preserved specimens from the Early Cretaceous Jehol lagerstatte, which provides us with a chance to decipher the strength of sexual selection on extinct vertebrates. Herein, we present a morphometric study of C. sanctus based on the largest sample size of this taxon collected up to now. Our results indicate that the characteristic elongated paired rectrices is a sexually dimorphic trait and statistically robust inferences of the sexual dimorphism in size, shape, and allometry that have been established, providing the earliest known sexual dimorphism in avian evolution. Our findings suggest that sexual selection, in conjunction with natural selection, does act upon body size and limb length ratio in early birds, thereby promoting a deeper understanding of the role of sexual selection in large-scale phylogenetic evolution.
WOS关键词TUFTED MALACHITE SUNBIRD ; MALE MATING SUCCESS ; SIZE DIMORPHISM ; BODY-SIZE ; TAIL ORNAMENTATION ; SHAPE DIMORPHISM ; FEMALE CHOICE ; CONFUCIUSORNIS ; ALLOMETRY ; LENGTH
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:001167400200007
出版者NATL ACAD SCIENCES
源URL[http://119.78.100.205/handle/311034/23522]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者Pan, Yanhong; Wang, Min; Zhou, Zhonghe
作者单位1.Shandong Tianyu Museum Nat, Pingyi 273300, Shandong, Peoples R China
2.Linyi Univ, Inst Geol & Paleontol, Linyi 276000, Shandong, Peoples R China
3.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
4.Nanjing Univ, Frontiers Sci Ctr Crit Earth Mat Cycling, Nanjing 210023, Peoples R China
5.Nanjing Univ, Ctr Res & Educ Biol Evolut & Environm, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210023, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Yibo,Pan, Yanhong,Wang, Min,et al. Fossil evidence sheds light on sexual selection during the early evolution of birds[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2024,121(3):9.
APA Zhou, Yibo,Pan, Yanhong,Wang, Min,Wang, Xiaoli,Zheng, Xiaoting,&Zhou, Zhonghe.(2024).Fossil evidence sheds light on sexual selection during the early evolution of birds.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,121(3),9.
MLA Zhou, Yibo,et al."Fossil evidence sheds light on sexual selection during the early evolution of birds".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 121.3(2024):9.

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来源：古脊椎动物与古人类研究所

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