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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2019 Vol.38 No.3

Research on Sexual Dimorphism of Acetabulum in Macaca mulatta tcheliensis
Author of the article:HAN Xiaofan1, WANG Fengchan2*
Author's Workplace:1. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;
2. Journal Editorial Department, Henan Normal University, Xinxiang, Henan Province 453000, China
Key Words:Macaca mulatta tcheliensis; acetabulum; sexual dimorphism; geometric morphometrics
Abstract:In this study, we analyzed the acetabular shape of 42 adult Macaca mulatta tcheliensis using geometric morphometrics, and provided information on the sexual dimorphism. The results showed that the sexual dimorphism of acetabulum was obvious between females and males. By using the acetabular shape, 92.3% of females and 87.5% of males were successfully identified. Sex differences were mainly characterized by males exhibiting relatively extended acetabular rim profiles in superior posterior part, which was opposite to the acetabular notch. In addition, the range of acetabular size in males was greater than that in females. The biological reason for this difference might be related to the function of acetabulum. Acetabulum, as part of the hip joint, could support the body mass and optimize the pressure distribution of joint contact surface. It was speculated that the greater mass pressure on male acetabulum might be the main reason for the wider lunate surface of males than females.
2019,38(3): 279-283 收稿日期:2018-11-02
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