Dental asymmetry as a measure of environmental stress in the Ticuna Indians of Colombia
Abstract The magnitude of fluctuating dental asymmetry is reported for a marginally Westernized, horticultural Indian group, the Ticuna of the Regíon Amazonas, Colombia. Asymmetry is lower than in other Amerindian and Eskimo groups reported to date, which accords with the adequacy and reliability of...
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crwiley:10.1002/ajpa.1330530118 2024-06-02T08:06:08+00:00 Dental asymmetry as a measure of environmental stress in the Ticuna Indians of Colombia Harris, Edward F. Nweeia, Martin T. 1980 http://dx.doi.org/10.1002/ajpa.1330530118 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fajpa.1330530118 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ajpa.1330530118 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor American Journal of Physical Anthropology volume 53, issue 1, page 133-142 ISSN 0002-9483 1096-8644 journal-article 1980 crwiley https://doi.org/10.1002/ajpa.1330530118 2024-05-03T11:23:12Z Abstract The magnitude of fluctuating dental asymmetry is reported for a marginally Westernized, horticultural Indian group, the Ticuna of the Regíon Amazonas, Colombia. Asymmetry is lower than in other Amerindian and Eskimo groups reported to date, which accords with the adequacy and reliability of traditional food sources and complements the claim that protein intake is at or above minimum requirements. Partitioning the variation by sex, arcade, dimension, and tooth discloses several statistically significant effects. Among these: 1) females are proportionately more asymmetric than males; 2) maxillary teeth are more asymmetric than their mandibular counterparts; 3) the mesiodistal dimension is less canalized than buccolingual width in the maxilla, but is more asymmetric in the mandible; and 4) the pattern of asymmetry corresponds closely with the morphogenetic gradients within each tooth field, suggesting that bilaterality provides an additional measure for disclosing underlying genetic and ontogenetic patterns in the dentition. Article in Journal/Newspaper eskimo* Wiley Online Library Indian American Journal of Physical Anthropology 53 1 133 142 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The magnitude of fluctuating dental asymmetry is reported for a marginally Westernized, horticultural Indian group, the Ticuna of the Regíon Amazonas, Colombia. Asymmetry is lower than in other Amerindian and Eskimo groups reported to date, which accords with the adequacy and reliability of traditional food sources and complements the claim that protein intake is at or above minimum requirements. Partitioning the variation by sex, arcade, dimension, and tooth discloses several statistically significant effects. Among these: 1) females are proportionately more asymmetric than males; 2) maxillary teeth are more asymmetric than their mandibular counterparts; 3) the mesiodistal dimension is less canalized than buccolingual width in the maxilla, but is more asymmetric in the mandible; and 4) the pattern of asymmetry corresponds closely with the morphogenetic gradients within each tooth field, suggesting that bilaterality provides an additional measure for disclosing underlying genetic and ontogenetic patterns in the dentition. |
format |
Article in Journal/Newspaper |
author |
Harris, Edward F. Nweeia, Martin T. |
spellingShingle |
Harris, Edward F. Nweeia, Martin T. Dental asymmetry as a measure of environmental stress in the Ticuna Indians of Colombia |
author_facet |
Harris, Edward F. Nweeia, Martin T. |
author_sort |
Harris, Edward F. |
title |
Dental asymmetry as a measure of environmental stress in the Ticuna Indians of Colombia |
title_short |
Dental asymmetry as a measure of environmental stress in the Ticuna Indians of Colombia |
title_full |
Dental asymmetry as a measure of environmental stress in the Ticuna Indians of Colombia |
title_fullStr |
Dental asymmetry as a measure of environmental stress in the Ticuna Indians of Colombia |
title_full_unstemmed |
Dental asymmetry as a measure of environmental stress in the Ticuna Indians of Colombia |
title_sort |
dental asymmetry as a measure of environmental stress in the ticuna indians of colombia |
publisher |
Wiley |
publishDate |
1980 |
url |
http://dx.doi.org/10.1002/ajpa.1330530118 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fajpa.1330530118 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ajpa.1330530118 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
eskimo* |
genre_facet |
eskimo* |
op_source |
American Journal of Physical Anthropology volume 53, issue 1, page 133-142 ISSN 0002-9483 1096-8644 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ajpa.1330530118 |
container_title |
American Journal of Physical Anthropology |
container_volume |
53 |
container_issue |
1 |
container_start_page |
133 |
op_container_end_page |
142 |
_version_ |
1800751023098167296 |