Eco‐geographic and sexual variation of the ribcage in <i>Homo sapiens</i>-Reference-Cited by-同舟云学术

Eco‐geographic and sexual variation of the ribcage in Homo sapiens

Published:2024-07 Issue: Volume: Page:
ISSN:1060-1538
Container-title:Evolutionary Anthropology: Issues, News, and Reviews
language:en
Short-container-title:Evolutionary Anthropology

Author:

López‐Rey José M.¹²^ORCID,D'Angelo del Campo Manuel D.²³⁴⁵,Seldes Verónica³⁶,García‐Martínez Daniel⁷⁸⁹,Bastir Markus¹

Affiliation:

1. Department of Paleobiology, Paleoanthropology Group Museo Nacional de Ciencias Naturales (MNCN‐CSIC) Madrid Spain

2. Laboratorio de Poblaciones del Pasado (LAPP), Department of Biology, Faculty of Sciences Universidad Autónoma de Madrid (UAM) Madrid Spain

3. Consejo Nacional de Investigaciones Científicas y Técnicas Centro Científico Tecnológico – Tandil (CONICET, CTT Tandil) Tandil Argentina

4. Laboratorio de Ecología Evolutiva Humana (LEEH), Facultad de Ciencias Sociales (FACSO), Unidad de Enseñanza Universitaria Quequén (UEUQ) Universidad Nacional del Centro de la Provincia de Buenos Aires (UNCPB) Quequén Argentina

5. Museo de Antropología, Instituto de Investigación Arqueológica y Antropológica (INIAA) Universidad Mayor, Real y Pontificia de San Francisco Xavier de Chuquisaca (UMRPSFXCH) Sucre Bolivia

6. Instituto de Ciencias Antropológicas, Sección de Antropología Biológica ‐ Instituto de Arqueología, Facultad de Filosofía y Letras (FFYL) Universidad de Buenos Aires (UBA) Buenos Aires Argentina

7. Physical Anthropology Unit, Faculty of Biological Sciences Universidad Complutense de Madrid (UCM) Madrid Spain

8. Department of Life Sciences, Laboratory of Forensic Anthropology, Center for Functional Ecology ‐ Science for People and the Planet (CFE), Centre for Functional Ecology University of Coimbra (UC), Calçada Martim de Freitas Coimbra Portugal

9. Centro Nacional de Investigación sobre la Evolución Humana (CENIEH) Burgos Spain

Abstract

AbstractUp to now, Allen and Bergmann's rules have been studied in modern humans by analyzing differences in limb length, height, or body mass. However, there are no publications studying the effects of latitude in the 3D configuration of the ribcage. To assess this issue, we digitally reconstructed the ribcages of a balanced sample of 109 adult individuals of global distribution. Shape and size of the ribcage was quantified using geometric morphometrics. Our results show that the ribcage belonging to tropical individuals is smaller and slenderer compared to others living in higher latitudes, which is in line with Allen and Bergmann's rules and suggests an allometric relationship between size and shape. Although sexual dimorphism was observed in the whole sample, significant differences were only found in tropical populations. Our proposal is that, apart from potential sexual selection, avoiding heat loss might be the limiting factor for sexual dimorphism in cold‐adapted populations.

Funder

Universidade de Coimbra

Publisher

Wiley

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1002/evan.22040

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