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Artículo

Eco‐geographic adaptations in the human ribcage throughout a 3D geometric morphometric approach

García Martínez, Daniel; Nalla, Shahed; Ferreira, Maria Teresa; Guichon, Ricardo AnibalIcon ; D'Angelo del Campo, Manuel D.; Bastir, Markus
Fecha de publicación: 02/2018
Editorial: Veterinary and Human Toxicology
Revista: American Journal Of Physical Anthropology
ISSN: 0002-9483
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Historia y Arqueología

Resumen

Objectives: According to eco-geographic rules, humans from high latitude areas present larger and wider trunks than their low-latitude areas counterparts. This issue has been traditionally addressed on the pelvis but information on the thorax is largely lacking. We test whether ribcages are larger in individuals inhabiting high latitudes than in those from low latitudes and explored the correlation of rib size with latitude. We also test whether a common morphological pattern is exhibited in the thorax of different cold-adapted populations, contributing to their hypothetical widening of the trunk.Materials and methods: We used 3D geometric morphometrics to quantify rib morphology of three hypothetically cold-adapted populations, viz. Greenland (11 individuals), Alaskan Inuit (8 individuals) and people from Tierra del Fuego (8 individuals), in a comparative framework with European (Spain, Portugal and Austria; 24 individuals) and African populations (South African and sub-Saharan African; 20 individuals).Results: Populations inhabiting high latitudes present longer ribs than individuals inhabiting areas closer to the equator, but a correlation (p < 0.05) between costal size and latitude is only found in ribs 7-11. Regarding shape, the only cold adapted population that was different from the non-cold-adapted populations were the Greenland Inuit, who presented ribs with less curvature and torsion.Conclusions: Size results from the lower ribcage are consistent with the hypothesis of larger trunks in cold-adapted populations. The fact that only Greenland Inuit present a differential morphological pattern, linked to a widening of their ribcage, could be caused by differences in latitude. However, other factors such as genetic drift or specific cultural adaptations cannot be excluded and should be tested in future studies.
Palabras clave: ALLEN´S RULE , BERGMANN´S RULE , INUIT- TIERRA DEL FUEGO COLD ADAPTATION , GEOMETRIC MORPHOMETRICS; THORAX
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/112124
URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/ajpa.23433
DOI: http://dx.doi.org/10.1002/ajpa.23433
Colecciones
Articulos(CCT - TANDIL)
Articulos de CTRO CIENTIFICO TECNOLOGICO CONICET - TANDIL
Citación
García Martínez, Daniel; Nalla, Shahed; Ferreira, Maria Teresa; Guichon, Ricardo Anibal; D'Angelo del Campo, Manuel D.; et al.; Eco‐geographic adaptations in the human ribcage throughout a 3D geometric morphometric approach; Veterinary and Human Toxicology; American Journal Of Physical Anthropology; 166; 2; 2-2018; 323-336
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