Eco-geographic and sexual variation of the ribcage in Homo sapiens.

Autor: López-Rey JM; Department of Paleobiology, Paleoanthropology Group, Museo Nacional de Ciencias Naturales (MNCN-CSIC), Madrid, Spain.; Laboratorio de Poblaciones del Pasado (LAPP), Department of Biology, Faculty of Sciences, Universidad Autónoma de Madrid (UAM), Madrid, Spain., D'Angelo Del Campo MD; Laboratorio de Poblaciones del Pasado (LAPP), Department of Biology, Faculty of Sciences, Universidad Autónoma de Madrid (UAM), Madrid, Spain.; Consejo Nacional de Investigaciones Científicas y Técnicas, Centro Científico Tecnológico - Tandil (CONICET, CTT Tandil), Tandil, Argentina.; 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.; Museo de Antropología, Instituto de Investigación Arqueológica y Antropológica (INIAA), Universidad Mayor, Real y Pontificia de San Francisco Xavier de Chuquisaca (UMRPSFXCH), Sucre, Bolivia., Seldes V; Consejo Nacional de Investigaciones Científicas y Técnicas, Centro Científico Tecnológico - Tandil (CONICET, CTT Tandil), Tandil, Argentina.; 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., García-Martínez D; Physical Anthropology Unit, Faculty of Biological Sciences, Universidad Complutense de Madrid (UCM), Madrid, Spain.; 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.; Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), Burgos, Spain., Bastir M; Department of Paleobiology, Paleoanthropology Group, Museo Nacional de Ciencias Naturales (MNCN-CSIC), Madrid, Spain.
Jazyk: angličtina
Zdroj: Evolutionary anthropology [Evol Anthropol] 2024 Oct; Vol. 33 (5), pp. e22040. Date of Electronic Publication: 2024 Jul 01.
DOI: 10.1002/evan.22040
Abstrakt: Up 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.
(© 2024 The Authors. Evolutionary Anthropology published by Wiley Periodicals LLC.)
Databáze: MEDLINE
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