Biological and Physical Anthropology Commons^™

Leadership In An Egalitarian Society, Christopher Von Rueden, Michael Gurven, Hillard Kaplan, Jonathan Stieglitz

ESI Publications

Leadership is instrumental to resolution of collective action dilemmas, particularly in large, heterogeneous groups. Less is known about the characteristics or effectiveness of leadership in small-scale, homogeneous, and relatively egalitarian societies, in which humans have spent most of our existence. Among Tsimane’ forager-horticulturalists of Bolivia, we (1) assess traits of elected leaders under experimental and naturalistic conditions and (2) test whether leaders impact collective action outcomes. We find that elected leaders are physically strong and have more kin and other exchange partners. Their ranks on physical dominance, kin support, and trustworthiness predict how well their groups perform, but only where …

Political Influence Associates With Cortisol And Health Among Egalitarian Forager-Farmers, Christopher Von Rueden, Benjamin C. Trumble, Melissa Emery Thompson, Jonathan Stieglitz, Paul L. Hooper, Aaron D. Blackwell, Hillard Kaplan, Michael Gurven

ESI Publications

Background and objectives: Low social status increases risk of disease due, in part, to the psychosocial stress that accompanies feeling subordinate or poor. Previous studies report that chronic stress and chronically elevated cortisol can impair cardiovascular and immune function. We test whether lower status is more benign in small-scale, relatively egalitarian societies, where leaders lack coercive authority and there is minimal material wealth to contest.

Methodology: Among Tsimane’ forager-horticulturalists of lowland Bolivia, we compare informal political influence among men with urinary cortisol, immune activation (innate and acquired), and morbidity as assessed during routine medical exams.

Results: After …

Hla Class Ii Alleles In The Otomi Population Of The Mezquital Valley. A Genetic Approach To The History Of Interethnic Migrations In The Mexican Central Plateau, Ana Itzel Juárez-Martín, Blanca Zoila González-Sobrino, Ángel Eduardo Camarena Olvera, Ramcés Falfán-Valencia

Human Biology Open Access Pre-Prints

From a historic and genetic point of view, the Otomi of the Mezquital Valley are a frontier people that have played an important role in the making of the population dynamics of the Mexican Central Plateau. Due to their antiquity in the area, the Otomi may be bearers of ancient genetic variability, shared mainly today with other groups belonging to the Otomanguean linguistic family and with the Nahua.

This study analyzes the HLA class II allele frequencies reported in Mexican indigenous populations, in order to provide an intra-regional level historical perspective of the genetic relationships between the Otomi of the …

Population Genetic Structure Of Traditional Populations In The Peruvian Central Andes And Implications For South American Population History, Graciela S. Cabana, Cecil M. Lewis, Jr., Raúl Y. Tito, R. Alan Covey, Angela M. Cáceres, C. Leslie Castillo Pampas, Augusto F. De La Cruz, Diana Durand, Genevieve Housman, Brannon I. Hulsey, Gian Carlo Iannacone, Paul W. Lopez, Rolando Martínez, Ángel Medina, Olimpio Ortega Dávila, Karla Paloma Osorio Pinto, Susan I. Polo Santillán, Percy Rojas Domínguez, Meagan Rubel, Heather F. Smith, Silvia E. Smith, Verónica Rubín De Celis, Beatriz Lizárraga, Anne C. Stone

Human Biology Open Access Pre-Prints

Molecular-based characterizations of Andean peoples are traditionally conducted in the service of elucidating continental-level evolutionary processes in South America. Consequently, “western” Andean population genetic variation is often represented in relation to “eastern” variation among Amazon and Orinoco River Basin populations. This west-east contrast in patterns of population genetic variation is typically attributed to large-scale phenomena, such as dual founder colonization events and/or differing long-term microevolutionary histories. However, alternative explanations that consider the nature and causes of population genetic diversity within the Andean region remain underexplored.

Here we examine population genetic diversity in the Peruvian Central Andes using mtDNA HVI and …

At Risk For Ptsd: The Public Health Implications Of Trauma, Madeline Peyton

Master's Projects and Capstones

The fieldwork experience is the summation of six semesters of graduate level public health training. At commencement, students are to be proficient in basic data analysis and epidemiological principles, in how environmental risks impact health, and demonstrate strong program planning, evaluation and leadership skills. Throughout, students are encouraged to focus their academic work on an area of public health that interest them and on a problem that they hope to impact in their professional work. I continued in an area I began as an undergraduate student of medical anthropology and explored the systems that interact to influence mental health of …

Tempo And Mode Of Domestication During The Neolithic Revolution: Evidence From Dental Mesowear And Microwear Of Sheep, Melissa Zolnierz

Graduate Theses and Dissertations

The Neolithic Revolution marked a dramatic change in human subsistence practices. In order to explain this change, we must understand the motive forces behind it. Researchers have proposed many different stimuli, with most theories invoking environmental dynamics, human population density increases beyond environmental carrying capacity, and the natural outgrowth of human and plant/animal interactions. However, unanswered questions remain concerning the mechanics of animal domestication. Traditional studies of changing faunal morphology and skeletal population profiles offer some clues, but such research has had limited success identifying stages intermediate between wild and domesticated forms, which makes it difficult to discern initial attempts …

3-D Morphometric Analysis Of The Primate Elbow Joint, Seth Brockman Boren

Graduate Theses and Dissertations

Large body size requires limb joints capable of supporting said weight, and a species exhibiting sexual size dimorphism may necessitate joint size differences between the sexes of the species. If habitual behavior differs with body size, one may expect to see significant variation in joint morphology between species and the sexes within species. The following analysis tests two hypotheses: (1) that significant differences in joint size between males and females correlate with the magnitude of sexual dimorphism and (2) that there is significant interspecific variance in joint shape between males and females of the same species. The first hypothesis is …

Atherosclerosis: A Longue Durée Approach, L. Samuel Wann, Randall C. Thompson, Adel H. Allam, Caleb E. Finch, Albert Zink, Hillard Kaplan, Bruno Frohlich, Guido P. Lombardi, M. Linda Sutherland, James D. Sutherland, Lucia Watson, Samantha L. Cox, Michael I. Miyamoto, Alexandre F. R. Stewart, Jagat Narula, Gregory S. Thomas

ESI Publications

Fernand Braudel popularized the longue durée approach to scholarly investigation in the mid-20th century. The longue durée approach can be loosely translated to mean “look for the big picture, synthesize data collected using all available methodology over the long periods of time to identify fundamental principles, rather than becoming preoccupied with isolated observations.” Braudel, a historian and economist, emphasized observation of enduring historical structures and analysis of long-term, panoramic economic trends rather than concentrating on detailed descriptions of particular events or individuals. He also urged the use of insight gained from many scholarly disciplines to identify the essential underpinnings of …

Why Did Ancient People Have Atherosclerosis?: From Autopsies To Computed Tomography To Potential Causes, Gregory S. Thomas, L. Samuel Wann, Adel H. Allam, Randall C. Thompson, David E. Michalik, M. Linda Sutherland, James D. Sutherland, Guido P. Lombardi, Lucia Watson, Samantha L. Cox, Clide M. Valladolid, Gomaa Abd El-Maksoud, Muhammad Al-Tohamy Soliman, Ibrahem Badr, Abd El-Halim Nur El-Din, Emily M. Clarke, Ian G. Thomas, Michael I. Miyamoto, Hillard Kaplan, Bruno Frohlich, Jagat Narula, Alexandre F. R. Stewart, Albert Zink, Caleb E. Finch

ESI Publications

Computed tomographic findings of atherosclerosis in the ancient cultures of Egypt, Peru, the American Southwest and the Aleutian Islands challenge our understanding of the fundamental causes of atherosclerosis. Could these findings be true? Is so, what traditional risk factors might be present in these cultures that could explain this apparent paradox? The recent computed tomographic findings are consistent with multiple autopsy studies dating as far back as 1852 that demonstrate calcific atherosclerosis in ancient Egyptians and Peruvians. A nontraditional cause of atherosclerosis that could explain this burden of atherosclerosis is the microbial and parasitic inflammatory burden likely to be present …

Genomic Correlates Of Atherosclerosis In Ancient Humans, Albert Zink, L. Samuel Wann, Randall C. Thompson, Andreas Keller, Frank Maixner, Adel H. Allam, Caleb E. Finch, Bruno Frohlich, Hillard Kaplan, Guido P. Lombardi, M. Linda Sutherland, James D. Sutherland, Lucia Watson, Samantha L. Cox, Michael I. Miyamoto, Jagat Narula, Alexandre F. R. Stewart, Gregory S. Thomas, Johannes Krause

ESI Publications

Paleogenetics offers a unique opportunity to study human evolution, population dynamics, and disease evolution in situ. Although histologic and computed x-ray tomographic investigations of ancient mummies have clearly shown that atherosclerosis has been present in humans for more than 5,000 years, limited data are available on the presence of genetic predisposition for cardiovascular disease in ancient human populations. In a previous whole-genome study of the Tyrolean Iceman, a 5,300-year-old glacier mummy from the Alps, an increased risk for coronary heart disease was detected. The Iceman’s genome revealed several single nucleotide polymorphisms that are linked with cardiovascular disease in genome-wide association …

Funerary Artifacts, Social Status, And Atherosclerosis In Ancient Peruvian Mummy Bundles, M. Linda Sutherland, Samantha L. Cox, Guido P. Lombardi, Lucia Watson, Clide M. Valladolid, Caleb E. Finch, Albert Zink, Bruno Frohlich, Hillard Kaplan, David E. Michalik, Michael I. Miyamoto, Adel H. Allam, Randall C. Thompson, L. Samuel Wann, Jagat Narula, Gregory S. Thomas, James D. Sutherland

ESI Publications

Background: Evidence of atherosclerotic plaques in ancient populations has led to the reconsideration of risk factors for heart disease and of the common belief that it is a disease of modern times.

Methods: Fifty-one wrapped mummy bundles excavated from the sites of Huallamarca, Pedreros, and Rinconada La Molina from the Puruchuco Museum collection in Lima, Peru, were scanned using computed tomography to investigate the presence of atherosclerosis. Funerary artifacts contained within the undisturbed mummy bundles were analyzed as an attempt to infer the social status of the individuals to correlate social status with evidence of heart disease in …

Dental Fluctuating Asymmetry As A Measure Of Environmental Stress In Nasca, Shawna L. Follis

Open Access Theses

This thesis evaluates how environmental stressors affected three groups (Nasca, Loro, and Chakipampa) that lived in Nasca during the Early Intermediate Period (ca. A.D. 1-750) and the Middle Horizon (ca. A.D. 750-1000). Using fluctuating asymmetry analysis as a proxy for developmental instability, biological evidence is assessed for differential stress levels incurred by groups occupying the Peruvian south coast. This study found high levels of stress in the Middle Horizon, supporting the hypothesis that populations living in Nasca were unfavorably affected by Wari colonizers. However, stress was found to be highest among the Chakipampa. This is attributed to Wari imperialistic occupation …

Emerging From The Shadows: Civil War, Human Rights, And Peacebuilding Among Peasants And Indigenous Peoples In Colombia And Peru In The Late 20th And Early 21st Centuries, Charles A. Flowerday

Department of Anthropology: Theses and Student Research

Peacebuilding in Colombia and Peru following their late-20^th and early 21^st century civil wars is a challenging proposition. In this study, it becomes necessary as indigenous peoples and peasants resist domination by extractive industries and governments in their thrall. Whether they protest nonviolently or rebel in arms, they are targeted for human-rights violations, especially murder, disappearance and displacement. The armed actors, state, insurgency, paramilitaries or drug traffickers, destroy civic institutions (local or regional government) and the civil (nonprofit) sector and replace them with their own authoritarian versions. Therefore, peacebuilding has emphasized rebuilding civic institutions, civil society and local …

Behaviors That Predict Personality Components In Adult Free-Ranging Tibetan Macaques (Macaca Thibetana), Alexander J. Pritchard, Lori K. Sheeran, Kara I. Gabriel, Jin-Hua Li, Ronald S. Wagner

Anthropology and Museum Studies Faculty Scholarship

To further the potential for applied personality studies, we present a methodology for assessing personality in nonhuman animals without a priori assumptions, using behavioral measures to discriminate personality survey results. Our study group consisted of 12 free-ranging, provisioned, adult Tibetan macaques (Macaca thibetana) at the Valley of the Wild Monkeys, China. We asked familiar Chinese park guards and scientists to rate each of the 12 macaques using 27-item personality surveys. We also recorded behavioral observations (> 100 hrs) from August–September, 2012. The personality surveys showed reliability in 22 of the items that were then utilized in a principal component analysis …

Cosleeping: A Universal Human Phenomenon, Sarah E. Nasatir-Hilty

Social Sciences

No abstract provided.

A Biomedical And Biocultural Approach To The Hispanic Paradox, Tess Wianecki

Social Sciences

No abstract provided.

Digital Baboon: Curating 30 Years Of Primatology Research Data, Cynthia Hudson-Vitale, Jennifer Moore

WashU Libraries Presentations

Many digital data curators will agree that making digital storage, online platform, digitization best practices, and metadata schema choices is a complicated process, even for a simple database. Curating a project that encompasses tooth casts, palm prints, field sheets, videos, images, and a database assembled over a thirty-year period extends those challenges, but also creates an opportunity to preserve and share an irreplaceable contribution to research. Librarians at Washington University in St. Louis are currently working with Dr. Jane Phillips-Conroy, Professor of Physical Anthropology; Anatomy and Neurobiology, to digitally curate this heterogeneous mix of physical and digital data. Dr. Phillips-Conroy’s …

Latinos In America: A Consideration Of Food Accessibility Factors With Implications For The Indianapolis Community, Abigail C. Robison

Undergraduate Honors Thesis Collection

Studies discuss personal choices or cultural influences of food consumption, but they may not integrate these findings with the accessibility of food. These factors cannot be ignored when considering the health of populations. Understanding the intricate relationship between food choices and food accessibility is vital to the realm of urban public health. This paper attempts to investigate these relationships and relate the findings to the local sphere, in Indianapolis, Indiana.

Health, Nutrition, And Disease In Rural Northern Jordan: A Study Of Enamel Defects Related To Childhood Stress In Skeletal Samples From The Bronze Age To The Byzantine Period, Teresa Veronica Wilson

Graduate Theses and Dissertations

Northern Jordan has seen periods of climate change, political transformation, and economic prosperity between the Late Bronze Age to the end of the Byzantine period. This research tests the assumption that the rural agricultural communities of this region were undernourished by examining the dentition for periodic childhood stress. Canine teeth from five sites (Ya'amun, Sa'ad, Yasileh, Natfieh, and Waqqas) that covered the time periods in question were collected to study overall quality of life.

The teeth were thin-sectioned and examined under a light microscope. Digital micrographs were made of the thin-sectioned teeth in order to record the number and location …

A Retrospective Study On The Effect Of Immunotherapy Treatment On Nasal Polyposis., Johanna Haejean Yun

College of Arts & Sciences Senior Theses

Inside the paranasal sinuses, multiple saclike masses protrude from the lining, blocking one’s sense of taste and smell, clogging one’s nose with nasal congestion, and causing a continuous runny nose with postnasal drip. This is a common case of nasal polyposis. Nasal polyposis affects up to four percent of the general population, making it one of the most common chronic diseases of the upper respiratory tract (Settipane 1996). Moreover, in cadaveric studies, the prevalence has been as high as 40% (Larson et al 1994). Nasal polyps commonly occur in adults over the age of 40, predominantly in males—with a 2:1 …