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Accurately predicting local ranges of isotopic signatures in human populations is essential for answering questions about past migrations and mobility. While local ranges of δ18O can be estimated using modern baseline samples and precipitation models, there are many environmental and anthropogenic drivers that can cause these ranges to deviate

Accurately predicting local ranges of isotopic signatures in human populations is essential for answering questions about past migrations and mobility. While local ranges of δ18O can be estimated using modern baseline samples and precipitation models, there are many environmental and anthropogenic drivers that can cause these ranges to deviate from the ranges seen in human populations. This study performs a geostatistical meta-analysis on a large dataset (n = 1,370) of spatially contextualized archaeological δ18O samples from 30 publications in order to generate a predictive model of local human δ18O ranges in the Central Andes. Two models were generated, one using archaeological samples of both humans and fauna, and the other using only humans. The model using only human samples makes more accurate predictions, cautioning against the incorporation of faunal δ18O samples in studies of human provenance. The models are also compared against a model of δ18O values found in precipitation across the study area, and significant differences lead to the conclusion that precipitation models are insufficient for predicting local human δ18O ranges.
ContributorsHatley, Camden Miller (Author) / Knudson, Kelly (Thesis director) / Scaffidi, Beth (Committee member) / School of Earth and Space Exploration (Contributor) / School of Human Evolution & Social Change (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
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Description
Objectives: The objective of this research is to develop a better understanding of the ways in which Transition Analysis estimates differ from traditional estimates in terms of age-at-death point estimation and inter-observer error. Materials and methods: In order to achieve the objectives of the research, 71 adult individuals from an

Objectives: The objective of this research is to develop a better understanding of the ways in which Transition Analysis estimates differ from traditional estimates in terms of age-at-death point estimation and inter-observer error. Materials and methods: In order to achieve the objectives of the research, 71 adult individuals from an archaeological site in northern Sudan were subjected to Transition Analysis age estimation by the author, a beginner-level osteologist. These estimates were compared to previously produced traditional multifactorial age estimates for these individuals, as well as a small sample of Transition Analysis estimates produced by an intermediate-level investigator. Results: Transition Analysis estimates do not have a high correlation with traditional estimates of age at death, especially when those estimates fall within middle or old adult age ranges. The misalignment of beginner- and intermediate-level Transition Analysis age estimations calls into question intra-method as well as inter-method replicability of age estimations. Discussion: Although the poor overall correlation of Transition Analysis estimates and traditional estimates in this study might be blamed on the relatively low experience level of the analyst, the results cast doubt on the replicability of Transition Analysis estimations, echoing the Bethard's (2005) results on a known-age sample. The results also question the validity of refined age estimates produced for individuals previously estimated to be in the 50+ age range by traditional methods and suggest that Transition Analysis tends to produce younger estimates than its traditional counterparts. Key words: age estimation, Transition Analysis, human osteology, observer error
ContributorsPhillips, Megann M. (Author) / Baker, Brenda (Thesis director) / Norris, Annie Laurie (Committee member) / School of International Letters and Cultures (Contributor) / School of Human Evolution and Social Change (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05
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Description
As a child passes through the birth canal, they become inoculated with vital gram positive and gram-negative bacteria, aerobes and anaerobes. Breast milk helps to support this growing microbiome by providing oligosaccharides that support its proliferation. Breast milk can be considered the most nutritious source of food available to a

As a child passes through the birth canal, they become inoculated with vital gram positive and gram-negative bacteria, aerobes and anaerobes. Breast milk helps to support this growing microbiome by providing oligosaccharides that support its proliferation. Breast milk can be considered the most nutritious source of food available to a growing infant by providing the necessary nutrients, growth hormones and antibodies to promote digestive health, growth, and a strong immune system. The Developmental Origins of Health and Disease Theory (DOHaD) is a theory that suggests a growing fetus and nursing child's nutrients and immune system are dependent on the mother's exposure to nutrients and toxins. Studies have shown a positive correlation between the length of nursing and a child's overall health through life. In addition, consuming an enriched diet after weaning builds a strong immunological and nutritional basis from which the child can grow. This leads to improvements in a child's overall health, which has beneficial long-term effects on morbidity and mortality. This project applied the theory to two Middle Horizon (AD500-1100) individuals from Akapana, Tiwanaku, in the Lake Titicaca Basin, Bolivia. Stable nitrogen and carbon isotope analysis was applied to first molar serial samples of these two individuals to determine weaning age and early childhood diet. Both individuals were male; one male died in adolescence between the age of 9-15 years, and the other died as an elderly adult around the age of 50-59 years. The results showed that the male who died in adulthood was provisioned with supplemental and post-weaning foods high in animal protein, and received breast milk until around 37 months of age. The adolescent male was weaned between 11-12 months and consumed a diet dominated by C4 plants \u2014 most likely maize \u2014 with much less protein. The correlation between prolonged access to breast milk and a healthier and more nutritious childhood diet and longevity are consistent with the theory discussed above.
ContributorsCampbell, Sibella Sweelin (Author) / Knudson, Kelly (Thesis director) / Marsteller, Sara (Committee member) / Greenwald, Alexandra (Committee member) / School of Human Evolution & Social Change (Contributor) / School of Molecular Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2018-12
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Description

This paper will cover a variety of stable isotope systems, both light and heavy, that are used to interpret isotopic analysis in two different disciplines: bioarchaeology and forensic anthropology. To begin, I will give short histories of both bioarchaeology and forensic anthropology, including what is considered to be the beginning

This paper will cover a variety of stable isotope systems, both light and heavy, that are used to interpret isotopic analysis in two different disciplines: bioarchaeology and forensic anthropology. To begin, I will give short histories of both bioarchaeology and forensic anthropology, including what is considered to be the beginning of the disciplines as well as the founders of said disciplines. Following the histories of the disciplines, there will be a short background in isotopes and isotopic analysis, including an introduction to isoscapes and how isotopic data can be collected for further interpretation. There will then be an introduction to light isotopes, focusing on the ones used for this thesis, which will lead into the background of each light isotope. Following the light isotopes is an introduction to the heavy isotopes and the backgrounds of each of the heavy isotopes. Finally, this thesis will end in the conclusions section.

ContributorsFranco, Kristina Marie (Author) / Knudson, Kelly (Thesis director) / Stojanowski, Christopher (Committee member) / School of Criminology and Criminal Justice (Contributor) / School of Human Evolution & Social Change (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
Description

The analysis of fragmentation and surface modification on a large and unbiased sample of faunal remains associated with the Mousterian deposits from Kobeh Cave (Zagros Mountains, Iran) is key to assigning a primary accumulator to each stratigraphic unit and discerning changes in accumulator over time. The Mousterian is a stone

The analysis of fragmentation and surface modification on a large and unbiased sample of faunal remains associated with the Mousterian deposits from Kobeh Cave (Zagros Mountains, Iran) is key to assigning a primary accumulator to each stratigraphic unit and discerning changes in accumulator over time. The Mousterian is a stone tool industry associated with Neanderthals, thus, the Kobeh assemblage informs us on this extinct hominin’s foraging behavior. This assemblage is affected by a significant level of post-depositional destruction. The frequency of surface modifications were compared to frequencies of surface modifications from experimental and naturalistic contexts to infer a primary accumulator. Cut marks were the most prevalent surface modification in this assemblage followed by tooth marks and percussion marks, suggesting a complex taphonomic history of accumulating actors. All stratigraphic units showed evidence of hominin and carnivore activity, though hominins are identified as the primary actor. There is evidence that the Middle Top Unit saw significant contribution by carnivores independent of scavenging.

ContributorsMealer, Danielle (Author) / Marean, Curtis (Thesis director) / Fahey, Patrick (Committee member) / Barrett, The Honors College (Contributor) / School of Human Evolution & Social Change (Contributor)
Created2023-05
Description
The analysis of fragmentation and surface modification on a large and unbiased sample of faunal remains associated with the Mousterian deposits from Kobeh Cave (Zagros Mountains, Iran) is key to assigning a primary accumulator to each stratigraphic unit and discerning changes in accumulator over time. The Mousterian is a stone

The analysis of fragmentation and surface modification on a large and unbiased sample of faunal remains associated with the Mousterian deposits from Kobeh Cave (Zagros Mountains, Iran) is key to assigning a primary accumulator to each stratigraphic unit and discerning changes in accumulator over time. The Mousterian is a stone tool industry associated with Neanderthals, thus, the Kobeh assemblage informs us on this extinct hominin’s foraging behavior. This assemblage is affected by a significant level of post-depositional destruction. The frequency of surface modifications were compared to frequencies of surface modifications from experimental and naturalistic contexts to infer a primary accumulator. Cut marks were the most prevalent surface modification in this assemblage followed by tooth marks and percussion marks, suggesting a complex taphonomic history of accumulating actors. All stratigraphic units showed evidence of hominin and carnivore activity, though hominins are identified as the primary actor. There is evidence that the Middle Top Unit saw significant contribution by carnivores independent of scavenging.
ContributorsMealer, Danielle (Author) / Marean, Curtis (Thesis director) / Fahey, Patrick (Committee member) / Barrett, The Honors College (Contributor) / School of Human Evolution & Social Change (Contributor)
Created2023-05
ContributorsMealer, Danielle (Author) / Marean, Curtis (Thesis director) / Fahey, Patrick (Committee member) / Barrett, The Honors College (Contributor) / School of Human Evolution & Social Change (Contributor)
Created2023-05
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Description
Teratomas are germ cell tumors that can generate a broad spectrum of biological tissues including: hair, oil glands, bones, and teeth. Little research has focused on the detailed comparison of teeth from growing within teratomas to teeth that grew normally within the oral cavity. Broad similarities in the overall

Teratomas are germ cell tumors that can generate a broad spectrum of biological tissues including: hair, oil glands, bones, and teeth. Little research has focused on the detailed comparison of teeth from growing within teratomas to teeth that grew normally within the oral cavity. Broad similarities in the overall pattern of dental growth have previously been observed using average enamel thickness, a measurement of enamel height, comparisons. Enamel thickness is used to infer functional aspects of dentition. Relative enamel thickness values have not been used in previous studies to account for the difference in size of the teeth.

ASU’s Bioarchaeology of Nubia Expedition (BONE) led by Dr. Brenda Baker discovered the remains of a female individual from the Classic Kerma period with a preserved large teratoma containing hard tissue components including two molariform teeth. There are only three previous recorded instances of teratomas in a paleopathological setting.

This study analyzed the characteristics of teeth found within a teratoma and compared them to permanent oral dentition to ascertain the degree to which dental development is affected by local growth environment. Permanent (oral) molars from multiple individuals and 2 teratoma teeth from a singular individual from the BONE site were analyzed alongside a comparative sample of permanent (oral) molars from an unrelated, more modern population. MicroCT scans were used to create digital renditions of the teeth to create 3D and 2D models to analyze the enamel and dentine of the teeth to measure their morphological characteristics. The relative enamel thickness and the absolute occlusal enamel volumes were calculated. The study found that there are significant differences in enamel thickness between the teratoma teeth and any of its oral cavity counterparts.

This study is unique in that it is the first study to analyze teeth from a teratoma to permanent teeth from the oral cavity using 2D and 3D digital dental models created from microCT data. It is also the first study to analyze these morphological characteristics in an archaeological sample.
ContributorsSchander-Triplett, Katherine (Author) / Schwartz, Gary (Thesis director) / Baker, Brenda (Committee member) / Ortiz, Alejandra (Committee member) / School of Human Evolution & Social Change (Contributor) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2019-12
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Description

One of the best ways to learn about an ancient society is to examine their architecture. Form imitates and is limited by utility and this can especially be seen in how humans set up their communities. However, with house structures, a new social dimension is added and can create many

One of the best ways to learn about an ancient society is to examine their architecture. Form imitates and is limited by utility and this can especially be seen in how humans set up their communities. However, with house structures, a new social dimension is added and can create many factors in its making. Social complexity and hierarchies can be reflected through the communal structures and layout and provide insight into how people organize themselves. In this paper, over 400 Hohokam structures from the Preclassic and Classic periods were compiled into a general dataset and 322 of which had sufficient data relevant to the research questions were used to determine any notable characteristics. The organization of the structures in this way provided a measurable process in determining these social and cultural aspects. The shapes of the Hohokam homes seemed to stay consistent over time with only the location and size of the entrance varying from site to site. Structures made in the Preclassic period had a smoother distribution of sizes than that of the Classic period structures. However, the changes in individual houses was not statistically significant. There is evidence that supports the notion that, as the Hohokam civilization developed, hierarchies began to form in their social complexity. Yet, it is not great enough to make any broad claims. The information derived from this paper can support further implications of growing social inequalities and the formation of classes within this community.

ContributorsSpitz, Brandon (Author) / Barton, C Michael (Thesis director) / Huster, Angela (Committee member) / Barrett, The Honors College (Contributor) / School of Human Evolution & Social Change (Contributor) / Dean, W.P. Carey School of Business (Contributor)
Created2022-05