Graduate Theses & Dissertations

Agricultural Intensification at Cerro de Oro (Cañete Valley, Peru)
Stable carbon and nitrogen isotope analysis of 571 archaeobotanical samples was performed to assess agricultural practices at Cerro de Oro in the Cañete Valley, Peru, during the transition between the Early Intermediate Period and the Middle Horizon. This thesis presents a comprehensive range of δ13C and δ15N values for the major C3 and C4 plant resources at the site. No differences were found in the δ15N values of charred and desiccated maize cobs, suggesting that both types of plant remains can provide reliable δ15N measurements. Generally, the δ15N values of plants at the site were relatively high, with the exception of most of the legumes, suggesting that organic fertilizers were extensively used. Camelid dung and fish offal are the most likely fertilizers used at Cerro de Oro, but some very high δ15N values suggest that seabird guano may also have been used. Peanuts, a legume, had higher δ15N values than would be expected for legumes, suggesting that this plant may have been companion-planted alongside maize or other more heavily fertilizer crops. Cotton had the highest δ13C value among all of the C3 plants sampled from the site, suggesting that this crop grew in the driest conditions, possibly reflecting a deficit irrigation system. This study reveals how intensive and extensive agriculture supported the emergence and growth of Cerro de Oro, a monumental site of great regional importance. Author Keywords: Andean Archaeology, Carbon and Nitrogen Stable Isotope Analysis, Cerro de Oro, Early Intermediate Period and Middle Horizon, Intensive and Extensive Agriculture, Plants
Use and Utilization of Loose and Commingled Human Dental Remains in Investigations of Ancient Human Populations
Commingled teeth present a unique opportunity for a novel application of standard methodological approaches commonly utilized in dental anthropological studies. Unfortunately, little research has been conducted on loose or commingled dental assemblages to determine if they are suitable samples for reconstructing bioarchaeological narratives of ancient human populations. The lack of research on commingled dental samples is surprising, given that teeth are highly resistant to post-depositional deterioration and are often some of the only remains left in high deteriorated burials. An experimental analysis of a commingled dental assemblage recovered from four chultuns at Ka'kabish, Belize, was conducted to address this lack of research and provide a real-world example of the potential use and utilization of commingled dental assemblages in investigations of ancient human populations. Author Keywords: Anthropology, Belize, Commingled, Dental, Maya, Methods
Functional Variation within Middle Paleolithic Ground Stone Tools
In the southern Levant, ground stone tools (GST) provide insight into early plant food exploitation, butchery, and cognition. Outside of these examples, GST evidence is scarce, particularly for the Middle Paleolithic. An extensive assemblage of GST recovered from Nesher Ramla, an open-air hunting camp in Israel, presents the unique opportunity to study the role of GST within Middle Paleolithic behaviour. Use-wear and residue analysis, together with replication experiments are employed to investigate GST function within a specific period of site use by focusing on GST from the Upper Sequence (Units I-II) which reflects a trend of decreasing site-use intensity. The results indicate that GST were employed for bone breaking and knapping during the final phases of occupation while comparison with Unit V suggests longer occupations involved more diverse and extensive use of GST. GST at open-air sites are also proposed to represent a strategy for intensive exploitation of location-specific resources. Author Keywords: Ground Stone Tools, Hammerstones, Middle Paleolithic, Residue Analysis, southern Levant, Use-Wear Analysis
Isotopes of the Caribbean
This research represents the first stable carbon and nitrogen isotope analysis of human bone collagen (n = 29) from the Escape Site (AD 300 - 1000), Saint Vincent. As a two-pronged investigation, this research had the following goals: (1) determining the ideal pretreatment for poorly preserved bones and (2) reconstructing the Escape Site sample population diet. By incorporating powdered specimens, shorter demineralizations and increased acid:sample exposure, higher collagen yields were produced, thereby expanding the sample size for isotopic analysis. Notably, the elemental data suggests that not all isolated collagen was biogenic and was perhaps contaminated by non-collagenous proteins. This highlighted the importance of using multiple criteria to rigorously evaluate collagen based on the full quality indicator profile. In the end, 5 individuals yielded useable isotope data which was consistent with a broad spectrum diet relying primarily on C3 plants as well as terrestrial, reef, nearshore and freshwater fauna. Within the broad region, the Escape Site data was comparable to other islands from the Lesser Antilles and Cuba emphasizing the influence of regional biodiversity as well as the likelihood that the studied population contributed and benefitted from the extensive Saladoid trade networks which existed at the time. Author Keywords: Caribbean, Collagen, Escape Site, Human diet, Saladoid, Stable isotope analysis

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