Fueguian cranial morphology
The adaptation to a cold, harsh environment
Bibliographic Data
| ID | 18928024 |
|---|---|
| Authors | Miquel Hernández (0000-0003-3100-7881, Universitat de Barcelona, corresponding author), Carles Lalueza-Fox (0000-0002-1730-5914, Universitat de Barcelona), Carles Lalueza Fox, Clara García-Moro, Clara García‐moro (0000-0003-0130-1887, Universitat de Barcelona) |
| Year | 1997 |
| Volume | 103 |
| Issue | 1 |
| Pages | 103-117 |
| Publication date | 1997-05-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | American Journal of Physical Anthropology (JOURNAL) |
| Journal identifiers | ISSN: 0002-9483 • E-ISSN: 1096-8644 |
| Publisher | Wiley (PUBLISHER • GB) |
| DOI | 10.1002/(sici)1096-8644(199705)103:1<103::aid-ajpa7>3.0.co;2-x |
| PMID | 9185954 |
| OpenAlex | W2085357441 |
| Language | EN |
| Citations received | 50 |
| References cited | 26 |
Craniometric data from the three extinct tribes that inhabited Tierra del Fuego (Selk'nam, Yámana, and Kawéskar) were gathered following Howell's measurement technique. We studied 180 skulls preserved at thirteen different institutions. Analysis of variance (ANOVA) between groups showed that morphological similarities among Fueguian groups are far more important than some differences between marine (Yámana and Kawéskar) and terrestrial (Selk'nam) groups. A principal component analysis (PCA) generated from the correlation matrix shows that Fueguians fall as outliers with respect to the typical Mongoloid morphology. In addition, a UPGMA tree generated from a squared Euclidean distance matrix indicates that Fueguian groups have a morphological pattern that is very distinct from that of other present-day Amerindian groups, with the exception of the Eskimos. One of the variables that contributes substantially to the differentiation of Eskimos and Fueguians is the nasal height. This suggests that nasal morphology in both groups could be a response to adaptive pressures related to the cold environment. However, other morphological particularities of Fueguian skulls, such as craniofacial robustness and variables of craniofacial width, can be attributed to a large masticatory stress. As a whole, the morphological features of Fueguian groups can be regarded as a general adaptive response to a very harsh environment, along with the retention of some plesiomorphic features. Assuming that the initial entry in Tierra de Fuego took place around 10,000 years BP, before the disappearance of the last land bridges in the Magellan Straits, then this adaptation might have arisen in a relatively short period, hastened by the extreme environmental conditions
Biology · Craniofacial · Evolutionary biology · Geography · Morphology (biology) · Principal component analysis · Statistics · UPGMA · Zoology · Evolution and Paleontology Studies · Forensic Anthropology and Bioarchaeology Studies · Mathematics · Pleistocene-Era Hominins and Archaeology
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| Unique citing works | 50 |
|---|---|
| Citations per year | 1,72 |
| Citation span | 1997 - 2026 (30) |
| Citation velocity | current |
| Highly cited | No |
| Citation types | Neutral: 38 |