Biological and Physical Anthropology Commons^™

Peoples Of India: The Use Of Craniometric Data To Distinguish A Separate Ancestral Group, Stephanie A. Craig

Graduate Student Theses, Dissertations, & Professional Papers

The Peoples of India come from an area with a long history of migrations into and out of the area. This area is considered the second most diverse genetically outside of Africa. Many would group these people as Asian due to the country’s location. However, when studies are done on the skeletal remains from this area, the remains tend to give results of mixed or indeterminate ancestry unless the analyst is familiar with identifying Peoples of India. This study aims to determine the Peoples of India as a separate ancestral group separated from Asians, Europeans, and Africans. To do this, …

Teaching Old Calipers New Tricks: Using Craniometrics For Ancestry Admixture Estimation Via Fuzzy Math, Kristi Carnahan

Master's Theses

Cranial measurements have been a cornerstone of physical anthropology since its formation as a discipline in the early 1900s. However, most other ancestry determination methods come with a significant epistemological issue: they differentiate individuals into discrete categories without accounting for the issue of admixture. Advances in data mining and analysis techniques can now be used to help resolve this issue through soft computing, also known as “fuzzy math”. This type of advanced computational math requires specialized knowledge in computer programming, statistics, and data analysis techniques unless one is using computer programs specially designed to run these analyses.

This project compiled …

Pterion And Broca’S Area: An Exploration Of Asymmetry In The K-S Distance, Bryn R. Dalrymple

Chancellor’s Honors Program Projects

No abstract provided.

Utilizing Craniometrics To Examine The Morphological Changes To Homo With The Advent Of Processing Food By Cooking, Julia Schorr

Graduate Student Theses, Dissertations, & Professional Papers

This thesis examines the extent to which the development of cooking by early humans contributed to morphological changes in the human skull, hypothesizing that the cooking of food by early humans had a direct effect on human evolution, leading to smaller face shape, larger body size, and larger brain development, which can be measured in the skull using craniometrics. Beginning with Homo erectus around 1 million years ago, early humans began cooking food. By beginning the process of physical and chemical breakdown of food prior to consumption, humans were able to better access calories and nutrients already found in their …

A Comparison Of The Utility Of Craniometric And Dental Morphological Data For Assessing Biodistance And Sex-Differential Migration In The Pacific Islands, Brittney A. Eubank

Graduate Student Theses, Dissertations, & Professional Papers

Genetic analysis of maternally-inherited mitochondrial DNA and the paternally-inherited Y-chromosome yield contrasting pictures of movement of peoples into the Pacific Islands. A possible explanation for this discrepancy is a matrilocal residency pattern practiced by early Pacific settlers, in which Melanesian men were brought into settler communities to intermarry with local women, yielding a higher intrapopulation variance and lower interpopulation variance exhibited in males compared to females. This research investigates the possibility of sex-differential migration in the Oceanic populations of Easter Island, Fiji, Guam, Mokapu, and New Britain through analysis of biodistance based on dental morphological trait frequencies and craniometric measures …

Exploring The Relative Importance Of Spatial And Environmental Variation On The Craniometrics Of The Modern Portuguese, Katherine E. Weisensee

Human Biology Open Access Pre-Prints

Previous research on the causes of craniometric variation within and among human populations has invoked both genetic and environmental explanations. Recent studies of modern populations in the United States and Portugal, among other populations, suggest that changes in environmental conditions have resulted in significant changes in cranial morphology. While similar changes in cranial morphology have been observed in genetically diverse populations, these populations do not appear to be converging on a common form. This study seeks to understand the role that population history and environmental variation play in explaining craniometric variation in the modern Portuguese. Using three-­‐dimensional craniometric data collected …

New Insights On The Peopling Of The New World: Analysis Of Migration Waves And Ancestral Areas Of The First Americans, Barbara Kathleen Alsup

Doctoral Dissertations

There is much debate regarding the ancestral area(s) and migration patterns of the first migrants into the Americas, referred to here as Paleoamericans. Using craniometric data of a comprehensive sample of Paleoamericans, Archaic Americans and modern, worldwide populations, various statistical analyses were conducted to further investigate these research questions, such as principal component analysis, Mahalanobis squared distance matrices and matrix permutation and design matrix analysis.

Most results indicate that the Single Wave model for movement into the New World is best supported by this data. This finding is among the first in providing craniometric support for a single wave into …

If And How Many 'Races'? The Application Of Mixture Modeling To World-Wide Human Craniometric Variation, Bridget Frances Beatrice Algee-Hewitt

Doctoral Dissertations

Studies in human cranial variation are extensive and widely discussed. While skeletal biologists continue to focus on questions of biological distance and population history, group-specific knowledge is being increasingly used for human identification in medico-legal contexts. The importance of this research has been often overshadowed by both philosophic and methodological concerns. Many analyses have been constrained in their scope by the limited availability of representative samples and readily criticized for adopting statistical techniques that require user-guidance and a priori information. A multi-part project is presented here that implements model-based clustering as an alternative approach for population studies using craniometric traits. …