Eco‐geographic adaptations in the human ribcage throughout a 3D geometric morphometric approach
| Autor: | Ricardo Aníbal Guichón, Maria Teresa Ferreira, Markus Bastir, Manuel Domingo D'Angelo del Campo, Daniel García-Martínez, Shahed Nalla |
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| Přispěvatelé: | Ministerio de Economía y Competitividad (España), University of Copenhagen, American Museum of Natural History, European Commission, Gerda Henkel Foundation, Leakey Foundation |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Historia y Arqueología Future studies Population Cold‐adaptation Greenland Adaptation Biological Argentina 010603 evolutionary biology 01 natural sciences White People Latitude Anthropology Physical HUMANIDADES Imaging Three-Dimensional Genetic drift Tierra del Fuego Humans INUIT- TIERRA DEL FUEGO COLD ADAPTATION 0601 history and archaeology Chile education Morphometrics education.field_of_study Bergmann's rule Allen's rule Geometric morphometrics 060101 anthropology Anthropometry GREENLAND INUIT Ecology Rib Cage ALLEN´S RULE 06 humanities and the arts Thorax GEOMETRIC MORPHOMETRICS THORAX Cold Temperature BERGMANN´S RULE Otras Historia y Arqueología Geography Inuit Anthropology Indians North American Anatomy Alaska |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | [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 [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. This study was funded by the Leakey Foundation and the Ministerio de Economía y Competitividad of Spain (CGL2015–63648‐P). The authors acknowledge Dr Niels Lynnerup and Dr Chiara Villa (University of Copenhagen) for access to the Greenland Inuit collection and also for support during data collection. Daniel García‐Martínez was funded by the American Museum of Natural History (collection study grant) in order to take data on the Alaskan Inuit collection. The European Commission's Research Infrastructure Action funded DGM via the Synthesys Project (DK‐TAF‐3494 and DK‐TAF‐6405) and MTF was funded by Gerda Henkel Foundation. |
| Databáze: | OpenAIRE |
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