Peopling of the Americas: A new approach to assessing dental morphological variation in Asian and Native American populations
Abstract Objectives Through biodistance analyses, anthropologists have used dental morphology to elucidate how people moved into and throughout the Americas. Here, we apply a method that focuses on individuals rather than sample frequencies through the application rASUDAS2, based on a naïve Bayes...
Published in: | American Journal of Biological Anthropology |
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Online Access: | http://dx.doi.org/10.1002/ajpa.24878 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ajpa.24878 |
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crwiley:10.1002/ajpa.24878 2024-06-02T08:00:29+00:00 Peopling of the Americas: A new approach to assessing dental morphological variation in Asian and Native American populations Scott, G. Richard Navega, David Vlemincq‐Mendieta, Tatiana Dern, Laresa L. O'Rourke, Dennis H. Hlusko, Leslea J. Hoffecker, John F. National Institute of Justice 2023 http://dx.doi.org/10.1002/ajpa.24878 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ajpa.24878 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor American Journal of Biological Anthropology ISSN 2692-7691 2692-7691 journal-article 2023 crwiley https://doi.org/10.1002/ajpa.24878 2024-05-03T11:57:10Z Abstract Objectives Through biodistance analyses, anthropologists have used dental morphology to elucidate how people moved into and throughout the Americas. Here, we apply a method that focuses on individuals rather than sample frequencies through the application rASUDAS2, based on a naïve Bayes' algorithm. Materials and methods Using the database of C.G. Turner II, we calculated the probability that an individual could be assigned to one of seven biogeographic groups (American Arctic, North & South America, East Asia, Southeast Asia & Polynesia, Australo‐Melanesia, Western Eurasia, & Sub‐Saharan Africa) through rASUDAS2. The frequency of classifications for each biogeographic group was determined for 1418 individuals from six regions across Asia and the Americas. Results Southeast Asians show mixed assignments but rarely to American Arctic or “American Indian.” East Asians are assigned to East Asia half the time while 30% are assigned as Native American. People from the American Arctic and North & South America are assigned to Arctic America or non‐Arctic America 75%–80% of the time, with 10%–15% classified as East Asian. Discussion All Native American groups have a similar degree of morphological affinity to East Asia, as 10%–15% are classified as East Asian. East Asians are classified as Native American in 30% of cases. Individuals in the Western Hemisphere are decreasingly classified as Arctic the farther south they are located. Equivalent levels of classification as East Asian across all Native American groups suggests one divergence between East Asians and the population ancestral to all Native Americans. Non‐arctic Native American groups are derived from the Arctic population, which represents the Native American founder group. Article in Journal/Newspaper Arctic Arctic Population Wiley Online Library Arctic Indian American Journal of Biological Anthropology |
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English |
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Abstract Objectives Through biodistance analyses, anthropologists have used dental morphology to elucidate how people moved into and throughout the Americas. Here, we apply a method that focuses on individuals rather than sample frequencies through the application rASUDAS2, based on a naïve Bayes' algorithm. Materials and methods Using the database of C.G. Turner II, we calculated the probability that an individual could be assigned to one of seven biogeographic groups (American Arctic, North & South America, East Asia, Southeast Asia & Polynesia, Australo‐Melanesia, Western Eurasia, & Sub‐Saharan Africa) through rASUDAS2. The frequency of classifications for each biogeographic group was determined for 1418 individuals from six regions across Asia and the Americas. Results Southeast Asians show mixed assignments but rarely to American Arctic or “American Indian.” East Asians are assigned to East Asia half the time while 30% are assigned as Native American. People from the American Arctic and North & South America are assigned to Arctic America or non‐Arctic America 75%–80% of the time, with 10%–15% classified as East Asian. Discussion All Native American groups have a similar degree of morphological affinity to East Asia, as 10%–15% are classified as East Asian. East Asians are classified as Native American in 30% of cases. Individuals in the Western Hemisphere are decreasingly classified as Arctic the farther south they are located. Equivalent levels of classification as East Asian across all Native American groups suggests one divergence between East Asians and the population ancestral to all Native Americans. Non‐arctic Native American groups are derived from the Arctic population, which represents the Native American founder group. |
author2 |
National Institute of Justice |
format |
Article in Journal/Newspaper |
author |
Scott, G. Richard Navega, David Vlemincq‐Mendieta, Tatiana Dern, Laresa L. O'Rourke, Dennis H. Hlusko, Leslea J. Hoffecker, John F. |
spellingShingle |
Scott, G. Richard Navega, David Vlemincq‐Mendieta, Tatiana Dern, Laresa L. O'Rourke, Dennis H. Hlusko, Leslea J. Hoffecker, John F. Peopling of the Americas: A new approach to assessing dental morphological variation in Asian and Native American populations |
author_facet |
Scott, G. Richard Navega, David Vlemincq‐Mendieta, Tatiana Dern, Laresa L. O'Rourke, Dennis H. Hlusko, Leslea J. Hoffecker, John F. |
author_sort |
Scott, G. Richard |
title |
Peopling of the Americas: A new approach to assessing dental morphological variation in Asian and Native American populations |
title_short |
Peopling of the Americas: A new approach to assessing dental morphological variation in Asian and Native American populations |
title_full |
Peopling of the Americas: A new approach to assessing dental morphological variation in Asian and Native American populations |
title_fullStr |
Peopling of the Americas: A new approach to assessing dental morphological variation in Asian and Native American populations |
title_full_unstemmed |
Peopling of the Americas: A new approach to assessing dental morphological variation in Asian and Native American populations |
title_sort |
peopling of the americas: a new approach to assessing dental morphological variation in asian and native american populations |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1002/ajpa.24878 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ajpa.24878 |
geographic |
Arctic Indian |
geographic_facet |
Arctic Indian |
genre |
Arctic Arctic Population |
genre_facet |
Arctic Arctic Population |
op_source |
American Journal of Biological Anthropology ISSN 2692-7691 2692-7691 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ajpa.24878 |
container_title |
American Journal of Biological Anthropology |
_version_ |
1800744499969785856 |