The dietary behavior of past communities is influenced by several factors such as environmental sources, social and economic organization, individual preferences, and physiological needs. Every society has its characteristics and understanding the dietary choices of its individuals expands the knowledge about its lifestyle. Applying biochemical tracers, we can explore the food choices of an Early Medieval Avar community. The Jagodnjak cemetery (n=35) in Croatia is dated to the 7–8th century. Historical and archaeological records are currently limited for Avar populations. Jagodnjak is a transitory community from a period where different historical events shaped the community's way of life. The research focus of this thesis is the evaluation of the dietary variation of the stable isotope of carbon (δ13C) and nitrogen (δ15N) on bone collagen, considering differences among adult males and females, as well as juveniles. Results indicate average δ13C of –16.28 ± 1.72‰ and average δ15N of +10.94 ± 1.5‰. The stable isotope analyses suggest that the adult males and females had similar food choices for plants and different for terrestrial animals or possibly freshwater fish, and the adults and juveniles had similar choices for dietary protein. However, the adults' and juveniles' dietary behavior indicates different C3 food resources. Stable isotopic comparisons suggest that Jagodnjak and some contemporaneous communities in Croatia and surrounding areas did not have similar dietary behaviors. The Jagodnjak cemetery expands the knowledge about bioarchaeology in Croatia and surrounding areas for the Early Medieval period and for this Avar community during this time of residential and lifestyle transition.

Activity stresses are an important factor in the development, patterning, and severity of osteoarthritis. This bioarchaeological thesis explores the prevalence and patterning of osteoarthritis between individuals buried at a Late Medieval Necropolis and a church Crypt built in the 19th century at the Mistihalj site in Bosnia and Herzegovina to understand the physiological effects of their peasant agro-pastoralist lifestyle. Composite scores of osteoarthritis were generated for visual observations of upper limb joints (shoulder, elbow, and wrist) and lower limb joints (hip, knee, and ankle) of 37 female and 39 male adult (between 20 and 50 or more years of age) skeletons. These were analyzed and compared by limb, age, sex, and time period. Low ranking peasant status for individuals was inferred by the location and type of burial. Odds ratio analyses show a positive correlation between the prevalence of osteoarthritis and age among Necropolis individuals. Correlation by age is expected, as the prevalence of osteoarthritis increases due to senescence and longer exposure to activities. A positive correlation between the severity of osteoarthritis and burial location between male skeletons overall and among older adults suggests that distinctive factors, perhaps differential workloads, played a role in the effects of this condition among these individuals. The reasons for the lack of any other significant differences in the osteoarthritic effects within and between the individuals from the two burial locations are discussed, including systemic factors that might lead to generalized osteoarthritis. However, overall these data suggest that the individuals within and between these time periods were generally involved in similar activities reflecting long term traditional lifestyles that continued over centuries. This thesis adds to the nascent bioarchaeological knowledge about past populations from Bosnia and Herzegovina and contributes to an anthropological understanding of lifestyles and their effect on physiological health.

Tampa Bay and the broader Central Gulf Coast region of Florida bear evidence of site reduction and population decline during the onset of the Late Woodland period (AD 500-1000). Concomitantly, Weeden Island culture flourished to the north, while climatic instability loomed to the south. It is unclear if the site abandonments in the area between the two are related to social or cultural change, an unstable climate, or a combination thereof. Interdisciplinary research has provided evidence for climate change and sea level regression during the sixth and seventh centuries in Southwest Florida, but these variables have yet to be investigated in Tampa Bay. This study implements a multi-scalar sclerochronological analysis to better understand how the climate of Tampa Bay has changed through time. Analyses of low-resolution stable isotopes (13C and 18O) paired with high-resolution trace elements (Mg, Na, Li, Sr) from 50 eastern oyster (Crassostrea virginica) specimens supports climatic instability during the Late Woodland period in Tampa Bay.

Osteoarthritis (OA) is one of the most common pathologies encountered in dry bone contexts. However, even with the wealth of publications on documenting the presence of OA from skeletons, these studies prove to be largely incomparable due to different scoring methodologies and procedures in calculating prevalence. The standardization of a new OA data collection procedure would mitigate variability in evaluating, scoring, and calculating the prevalence of OA, thus allowing accurate comparison between studies. However, this level of data collection has often been described as unwieldy and lacking concordance. This research outlines a new methodology that utilizes Geographic Information Systems (GIS) to record OA characteristics, levels of expression, and spatial arrangement on the articular surfaces of the arm. The data was then processed using the analysis and visual rendering capabilities of GIS providing examples of OA patterning on the articular surface, within the joint, and within the individual. Using this method, large standardized OA datasets can be stored and the patterns within them modeled through the use of digitization, composite raster overlays, and modified binning techniques. The patterns recorded by this analysis can offer a more robust dataset on OA occurring within the arm that can provide the ability to explore OA progression and its relationship with biomechanical factors in larger datasets.

No description available.

Visual and metric analysis both provide accepted methods for sex determination in humans. Visual ascertainment uses differing morphological traits in males and females to establish sex. Researchers have continually sought accurate methods of sexing long bones when skulls or pelves are absent or fragmented. These long bone elements may not have sexually distinct characteristics, but tend to survive in the field quite well. Metric analysis depends on size dimorphism between males and females to correctly assign sex. Metric methods fail where the sexes overlap or when skeletal elements cannot be assigned to their correct biological population. Under these conditions, visual ascertainment is extremely useful. It relies on descriptive features, not size, to interpret the shape variations between male and female elements. For example, physiological soft tissue variations in the "carrying angle'" of the arm at the humero-radioulnar junction are known to be sexually dimorphic; therefore, the hard tissue features of the distal humerus also should be sexually dimorphic. I observed six distinct visual characteristics of the distal humerus to determine sex in a blind study conducted on 649 individuals sampled from diverse biological populations. In addition to visual assessment, I collected four humeral measurements to determine whether quantitative analysis would be a better indicator of sex than non-metric analysis. I used nonparametric statistical methods to examine· the significance of each morphological feature and its relationship to known sex. All characteristics showed a high association with sex, and the relationships between sex and each characteristic were statistically strong. The final predictive quality of this method was 84% regardless of population; I concluded that my visual method is a dependable sex predictor among diverse populations. Every biological group varied considerably in size dimensions, but exhibited common morphological features of the distal humerus. This confirms that visual techniques provide accurate results regardless of biological affiliation. In many cases, visual assessment was as accurate or more accurate than metric analysis. Therefore, the distal humerus and its unique physical features provide an alternative method to previously used quantitative techniques in the determination of sex.

Gibbon classification at the species and subspecies levels has been hotly debated for the last 200 years. This thesis explores the reasons for this debate. Authorities agree that siamang, concolor, kloss and hoolock are species, while there is complete lack of agreement on lar, agile, moloch, Mueller's and pileated. The disagreement results from the use and emphasis of different character traits, and from debate on the occurrence and importance of gene flow.

No description available.

Excavations at the site of Ixlú in northern Guatemala recovered a series of skulls and dismembered postcrania from a Postclassic (ca. A.D. 1000—1525) Maya temple. The current study considers demography, taphonomy (including mortuary processing), cultural modification and biological distance among the remains in light of ethnohistoric and archaeological data. Doing so addresses who made the deposits, why they were made, and who was interred, and informs on the use of ritual violence in the Postclassic Southern Lowlands. Six skulls were arranged in pairs on the east-west midline of the building, and fifteen skulls were placed in rows in the center of the building. All of the skulls faced east. Four postcrania were placed perpendicular to the skull rows. The skulls and postcrania were primarily late adolescent to young adult males. Three of the individuals exhibited a rare dental trait, supernumerary teeth, indicating that at least some of the individuals were related. The most likely scenario to account for the deposits is that the Itzá, a dominant political group in the area, sacrificed enemy combatants drawn from raiding and buried them as a part of a dedicatory ritual in the temple.

No description available.