Erica Williams
This presentation is the property of its rightful owner.
Sponsored Links
1 / 1

National Science Foundation Research Experiences for Undergraduates (SES #0244096) PowerPoint PPT Presentation


  • 67 Views
  • Uploaded on
  • Presentation posted in: General

Erica Williams 1 ; Jaime Ullinger, MA 2 ; Dennis Van Gerven, Ph.D. 3; Susan Guise Sheridan, Ph.D. 1. 1 Department of Anthropology, University of Notre Dame; 2 Department of Anthropology, The Ohio State University; 3 Department of Anthropology, University of Colorado.

Download Presentation

National Science Foundation Research Experiences for Undergraduates (SES #0244096)

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


National science foundation research experiences for undergraduates ses 0244096

Erica Williams1; Jaime Ullinger, MA2; Dennis Van Gerven, Ph.D.3; Susan Guise Sheridan, Ph.D.1

1Department of Anthropology, University of Notre Dame; 2Department of Anthropology, The Ohio State University; 3Department of Anthropology, University of Colorado

Table 4. Penrose size/shape distance measures using only premolar & molar (mandibular and maxillary) values

The odontometric analyses alone are not conclusive,

indicating only that the monks are not genetically distinct

from Western European and Near Eastern groups. Taken

with the other nonmetric and isotopic studies, though, they

contribute to a larger picture of the St. Stephen's community as

comprised primarily of a local population with some amount of

immigration that cannot be quantified. Future directions include

searches for other Byzantine-era collections for comparison, as well

as isolation of individuals from the St. Stephen's collection for direct comparison to individuals from other communities in order to perform more rigorous statistical tests.

Constantine’s declaration of Christianity as the official religion of the Roman Empire in A.D. 313 resulted in the building of many ecclesiastical structures in and around Jerusalem. This expansion led to the construction of more and better roads, as well as increased trade (to which Jerusalem’s location along major trade routes from Europe to Northern Africa also contributed). “As the news of Constantine’s works in the holy places began to spread, the flow of pilgrims increased” (Wilkinson 1976:84). Western sources such as Egeria and Jerome, writing during this period, were struck by the number of pilgrims from the east. Jerome also records origins of travelers from as far away as India, Persia, and Ethiopia (Wilkinson 1999, 2002).

Our study seeks to estimate the impact of these pilgrims on the biological makeup of the Byzantine monastic community. Gene frequencies are difficult to study directly in archaeological collections; therefore physical traits are often used to assess biological relationships and microevolutionary trends (Scott and Turner 1988). This is based on the observation that phenetic distances correspond to genetic variation (Hillson 1996, Stojanowski 2005). Biological traits, such as tooth crown size, can be useful indicators of genetic distances between populations if a significant component of the trait is genetic (Scott & Turner 1988).

Nearly 65% of adult tooth size is under genetic control (Townsend and Brown 1978). Most studies measure the largest dimensions of the tooth crown according to the technique developed by Moorrees (1957). The central incisor (I1), first premolar (P1) and first molar (M1) are the most genetically stable teeth, and are often referred to as the anchor, or polar, teeth. This is slightly varied in the mandible, where the lateral incisor (I2) tends to be more stable than the central (Alvesalo and Tigerstedt 1974, Kieser 1990, Hillson 1996). Due to their higher rates of heritability, these polar teeth are the most useful for determining biological distance.

Statement of Purpose: Historical accounts indicate that pilgrimage to Byzantine Jerusalem (5th-7th century CE) was a major social phenomenon; less clear is the number of individuals that settled in monasteries upon arrival in the “Holy Land.” The purpose of this study was to study the biological homogeneity of the monks of St. Stephen’s using odontometrics. Dental crown sizes of the anchor teeth (I1, C, P1, and M1 in the maxilla and I2, C, P1, and M1 in the mandible) were analyzed for within- and between-group variation. Comparative collection from the surrounding region, and from locations where pilgrims purportedly originated were used to determine genetic distance. These data were combined with the analysis of dental non-metric traits (Ullinger 2002), cranial and vertebral non-metric traits (Guappone et al. 2006), as well as strontium isotope profiles (Cooper et al. 2006) to determine the origins of the monks of St. Stephens.

Abbreviations

Byzantine St. Stephen’s Project

Laboratory for Biocultural Studies

University of Notre Dame

Department of Anthropology

Table 1. Descriptive statistics for comparative collections by tooth type

  • Alvesalo L, Tigerstedt MA. 1974. Heritabilities of human tooth dimensions. Hereditas 77:311-318.

  • Binns J. 1994. Ascetics and ambassadors of Christ: the monasteries of Palestine 314-631. Oxford: Oxford University

  • Press.

  • Calcagno, JM. 1986. Odontometrics and biological continuity in the Meroitic, X-Group, and Christian phases of Nubia.

  • Curr Anthropol 27:66-69.

  • Coppa A, Cucina A, Manicinelli D, Vargiu R, Calcagno JM. 1998. Dental anthropology of Central-Southern, Iron Age Italy:

  • the evidence of metric versus nonmetric traits. Am J Phys Anthropol 107: 371-386.

  • Cooper AL, Viets ZJ, Sheridan SG. 2006. Sacred elements: assessing Byzantine pilgrimage to Jerusalem using elemental and

  • isotopic composition of human bone. Am J Phys Anthropol, 129:77-8.

  • Faerman M, et al. 2002. The Bio-anthropology of the Human Remains. In: Scheftelowitz N, Oren R, editors. Tel Kabri: the 1986-

  • 1993 Excavation Seasons. Tel Aviv: Emery and Claire Yass Publications in Archaeology. p 383-394.

Table 5. Penrose size/shape distances between Byzantine St. Stephen’s and 2 outliers

showing significant differences in mandibular P1 (t=3.10, p=0.002) and maxillary P1 (t=3.20, p=0.001) in the Meroitic Nubians, mandibular P1 (t=4.58, p=1.4E-5), M1 (t=2.59, p=0.006) and maxillary P1 (t=2.67, p=0.005) in the X-group Nubians, and mandibular C (t=1.89, p=0.034), P1 (t=2.24, p=0.015), M1 (t=2.32, p=0.012) and maxillary I1 (t=2.29, p=0.014) and P1 (t=2.67, p=0.005). Because these three Nubian groups are considered biologically continuous (Calcagno 1986), these statistics indicate that north Africans were not living at St. Stephen's in significant numbers.

  • Glanta MM. 1999. A reassessment of the relationship between dental wear, subsistence, and non-masticatory behavior: morphological

  • considerations in dental wear process. PhD dissertation: University of Pennsylvania.

  • Guappone A, Crate J, Ullinger J, Van Gerven DP, Sheridan SG. 2006. Heading to Jerusalem: assessing migration and pilgrimage to a Byzantine

  • monastery using cranial non-metric traits. Am J Phys Anthropol, 129:187-88.

  • Hillson S. 1996. Dental Anthropology. Cambridge: Cambridge University Press.

  • Hillson S, FitzGerald C, Flinn H. 2005. Alternative dental measurements: proposals and relationships with other measurements. Am J Phys Anthropol 126:413-426.

  • Hunt E. 1982. Holy land pilgrimage in the later Roman empire AD 312-460. Oxford: Oxford University Press.

  • Jacobi KP. 1996. An analysis of genetic structuring in a colonial Maya Cemetery, Tipu, Belize, using dental morphology and metrics. PhD Dissertation, Indiana University.

  • Kieser JA. 1990. Human Adult Odontometrics. New York: Cambridge University Press.

  • Larsen CS. 1990. The archaeology of Mission Santa Catalina de Guale: 2. Biocultural interpretations of a population in transition. Anthropological papers of the American Museum of Natural History 68: 1-150.

  • Lukacs J. 1983. Dental anthropology and the origins of two Iron Age Populations from Northern Pakistan. Homo 34:1-15.

  • Macchiarelli R, Salvadei L, Bondioli L. 1995. Odontometric variation and biological relationships among Italic (Latins, Samnites, Paeligni, Picenes) and Imperial Roman populations. Aspects of dental biology: paleontology, anthropology and evolution:419-436.

  • Manzi G, Snatandrea E, Passarello P. 1997. Dental size and shape in the Roman Imperial Age: two examples from the area of Rome. Am J Phys Anthropol 102:469-479.

  • Matsumura H. 2001. Differentials of Yayoi immigration to Japan as derived from dental metrics. Homo 52:135-156.

  • Moorrees CFA. 1957. The Aleut Dentition. Cambridge: Harvard University Press.

  • Moorrees CFA, Reed RB. 1964. Correlations among crown diameters of human teeth. Arch Oral Biol 9:685-697.

  • Peretz B, Smith P. 2004. Dental morphology and pathology of Middle Bronze Age populations in Israel: Sasa and Jebel Qa'aqir. 'Atiqot 46: 45*-49*.

  • Rathbun TA.1972. A study of the physical characteristics of the ancient inhabitants of Hasanlu, Iran. Miami: Field Research Projects.

  • Rathbun TA. 1975. A study of the physical characteristics of the ancient inhabitants of Kish, Iraq. Miami: Field Research Projects.

  • Rosenzweig KA, Mass E, Smith P. 1969. La denture des Samaritains. Bulletin du Groupement international pour la recherche scientifique en stomatologie 12:95-106.

  • Rosenzweig KA, Zilberman Y. 1969. Dentition of Bedouin in Israel. Am J Phys Anthropol 31: 199-204.

  • Scott GR, Turner CG. 1988. Dental anthropology. Ann Rev Anthropol 17:99-126.

  • Sheridan S, Ullinger J, Ramp J. 2003. Anthropological analysis of the human remains: the French collection. In: Humbert J, Gunneweg J, editors. Khirbet Qumran at Ain Feshkha. Fribourg: Academic Press. p 129-169.

  • Smith P. 1970. Dental morphology and pathology in the Natufians: the dental evidence for dietary specializations. Ph.D. dissertation, The University of Chicago.

  • Stojanowski CM. 2005. Spanish Colonial effect on Native American mating structure and genetic variability in Northern and Central Florida: Evidence from Apalachee and Western Timucua. Am J Phys Anthropol 128: 273-286.

  • Tasa GL. 1997. Skeletal and dental variation of Pacific Coast Athapaskans: implications for Oregon prehistory and peopling of the New World. PhD Dissertation, University of Oregon.

  • Ubelaker DH, Jones EB. 2003. Biological and cultural analysis of human remains. In: Ubelaker DH, Jones EB, eds. Human Remains from Voegtly Cemetery, Pittsburgh, Pennsylvania. 2003, Washington, D.C:.Smithsonian Institution Press.

  • Ullinger JM. 2002. Early Christian pilgrimage to a Byzantine monastery in Jerusalem--a dental perspective. Dent Anthropol 16:22-25.

  • Wilkinson J. 1976. Christian pilgrims in Jerusalem during the Byzantine period. In: Palest Explor Q n.s: 75-101.

  • Wilkinson J. 1999. Egeria's travels. Warminster: Aris & Phillips Ltd.

  • Wilkinson J. 2002. Jerusalem pilgrims before the Crusades. Warminster: Aris & Phillips Ltd.

Table 6. Penrose size/shape distances between Byzantine St. Stephen’s and contemporary and African sites

A few of the European collections are biologically similar to St. Stephen's. The AD second century Roman remains are especially similar, both in Penrose statistics (C2H =0.038) and in the lack of significant difference in any of the polar teeth (Table 6). Italian collections from Campovalano (6th-4th cent. BC Italy) and Lucus Feroniae, (AD 2nd century near Rome), also have small biodistance measures (C2H =0.119 and C2H =0.128, respectively). These similarities may indicate that some of the inhabitants of St. Stephen's originated in Europe.

The similarity between the monks and other Near Eastern groups (discussed below) suggests that the reason for similarity between St. Stephen’s and certain European groups is not because the monks are wholly a European immigrant population. Manzi et al. (1997) suggest that there was an influx of agriculturalists from the Southern Levant into Italy during the Mesolithic-Neolithic transition. Indeed, movements into and out of Europe and the Near East are ancient and plentiful, and have most certainly left long-term biological impacts.

The St. Stephen’s sample consisted of over 1,500 adult teeth. Those with obvious dental abnormalities, excessive occlusal or interproximal wear, dental caries, broken cusps, partial eruption, or impaction were excluded from study, since these characteristics interfere with measurement. Exceptions to this included teeth with cupped wear that did not obstruct the dimensions measured. Mesiodistal and buccolingual diameters (Figure 1) were measured with a needle-pointed calipers (accurate to .01 mm). Measurements were taken in two separate blind runs to ensure precision.

The mesiodistal diameter was taken at the greatest dimension of the crown parallel to the occlusal and labial surfaces

(Moorrees and Reed 1964). The buccolingual measurements of the premolars and molars were taken at the greatest

distance between the labial and lingual surfaces of the tooth in a plane perpendicular to the mesiodistal dimension. Because

the flare of the tooth (where the greatest distance could be measured) occurs lower on the buccal and lingual surfaces

than on the mesial and distal surfaces, fewer teeth were excluded from buccolingual measurement by occlusal wear.

Table 7. Penrose size/shape distances between Byzantine St. Stephen’s and other Near Eastern collections

Table 2. Descriptive statistics for the Byzantine St. Stephen’s collection

Matched pairs Student’s t-test was used to compare right and left teeth, and coefficients of variation were

calculated within each tooth type to test for homogeneity. Numerous collections were compared to St.

Stephen’s by tooth type using ANOVA, and Penrose’s size and shape measure was used to establish the

distance among collections.

Like those from Western Europe, Near Eastern collections show high levels of similarity to Byzantine St. Stephen's. Collections from Tel Kabri (C2H =0.139), Jebel Qa’Aqir (C2H =0.082), and Dothan (C2H =0.111) show the closest relationships to St. Stephen’s when all eight teeth are used for comparison (Table 7). Additionally, there are no significant differences in polar tooth size in the Jebel Qa’Aqir group, and significant differences in only two of the polar teeth in both Tel Kabri (mandibular M1, t=2.67, p=0.005 and maxillary I1, t=2.48, p=0.009) and Dothan (mandibular M1, t=2.81, p=0.003 and maxillary M1, t=2.08, p=0.021). Only collections from Sasa (C2H =0.509) and Qumran (C2H =0.499) show significant biodistance from St.

Table 8. Penrose size/shape distances between Byzantine St. Stephen’s and other Near Eastern collections using only premolar & molar (mandibular & maxillary) values

Historical records describe pilgrims traveling to and often

settling in Jerusalem from Western Europe, Mesopotamia, and

Persia, as well as India and North Africa. Student’s t-test

(one-tailed, unequal variance) was used to analyze

differences between the teeth of St. Stephen’s versus

Italy, Pakistan, North Africa, and the Southern

Levant. Collections from North America and

Southeast Asia were also included as

genetically distinct groups. The Levantine

assemblages included individuals from

the tombs of Tell Dothan (West Bank)

and Qumran (Dead Sea region).

Only comparative collections

from 6000 BC and later were

selected to ensure that

observed differences in

tooth size were due

primarily to genetic factors rather

than diet-

related dental reduction.

Table 3. Statistical comparison of St. Stephen’s to comparative collections

Stephen's. Both are also genetically distant from the other Near Eastern groups; for Qumran, this may be due to the small sample size.

When only the mandibular and maxillary premolars and molars are compared using the Penrose measure, again Tel Kabri (C2H =0.110) and Jebel Qa’Aqir (C2H =0.066) exhibit close relationships (Table 8). The collection from Bronze Age Jericho (C2H =0.049), also shows similarity to St. Stephen’s, corroborated by the absence of any significant difference in polar tooth size.

These results, combined with the comparisons using all teeth suggest that the majority of individuals from St. Stephen's probably originated from the local area. These findings are also supported by dental non-metric traits, which also suggested that the monastery could not be distinguished from Near Eastern and European groups (Ullinger, 2002). It is increasingly clear that very few immigrants from Africa or East Asia were staying long enough at the monastery to be buried there, if they were arriving at all. Some historical sources support this. Binns (1994) states that the majority of monks in Byzantine monasteries came from areas such as Asia Minor. Further directions may include comparison to more groups from Asia Minor and areas north and east of Jerusalem; however, the lack of odontometric data from these areas makes such comparison difficult.

In addition to the study of dental nonmetrics, other studies of cranial and vertebral nonmetrics as well as stable strontium ratios on the St. Stephen's collection have also suggested that the individuals originated in the Near East (Guappone et al. 2006, Cooper et al. 2006). While this seems to contradict pilgrimage accounts, scholars also state that that monastic communities were comprised not only of monks but also indigenous workers (Wilkinson 1976, Hunt 1982, Binns 1994). This may account for the observed similarities to near eastern groups. However, the homogeneity of the group also indicates that it is not comprised of distinct groups of foreign monks and indigenous workers, suggesting that the majority of the monks themselves were from the local area.

  • National Science Foundation Research Experiences for Undergraduates (SES #0244096)

  • University of Notre Dame Undergraduate Research Opportunities Program (Institute for Scholarship in the Liberal Arts)

  • University of Notre Dame Undergraduate Intellectual Initiative (Office of Undergraduate Studies)

  • Paul Sciulli, Ph.D., The Ohio State University

  • Matthew Tocheri, MA, Arizona State University

  • L'École Biblique et Archéologique Française de Jérusalem & Couvent St-Étienne

A copy of this poster can be downloaded at the following website:

http://www.nd.edu/~sheridan/AAPAs.html

Asymmetry : Student’s t-test indicated no significant side variation for the mesiodistal or buccolingual measurements. Due to the nature of commingled remains from the St. Stephen's collection, the left side is used in all subsequent analyses in order to avoid the duplication of individuals.

Exclusion of mesiodistal measurements: While teeth with significant interproximal wear were excluded from this study, few posterior teeth remain completely unaffected, making the mesiodistal measurement less reliable (Coppa et al 1998, Kieser 1990). Additionally, mesiodistal measurements can be inaccurate when taken on jawed teeth. Therefore, only buccolingual (BL) measurements are analyzed. Table 1 illustrates the BL measures for mandibular and maxillary anchor teeth from numerous comparative collections and Byzantine St. Stephens.

Homogeneity: Coefficient of variation (CV) values between 4 and 10 percent indicate homogeneity (Thomas 1986). All left polar tooth buccolingual measurements in the St. Stephen’s collection fall within this range (Table 2). This indicates that the St. Stephen’s collection is composed primarily of people from a single region, rather than groups from varied areas.

Comparative study: Each group was compared to the St. Stephen’s collection (Table 3). Statistically significant differences (p≤0.05) are indicated in bold. The Penrose size/shape measure (C2H)was used to analyze the relative distances between St. Stephen's and other collections (Table 4). As expected, populations chosen as outliers (native Jomon from Japan & Guale Indians from North America) do exhibit high Penrose values (C2H = 0.730 and 1.953) when compared to the Byzantine monks. These collections also show significant difference in 6 of the 8 polar teeth (mandibular PI, M1 and all maxillary polar teeth, Table 3).

Although textual records indicate that pilgrims traveled from northern Africa, the distance statistics from the X-group Nubians do not support this (C2H =0.315, Table 6). Nubians, in fact, are more biologically distant during and after the Byzantine period: Meroitic Nubians (C2H =0.257) are more closely related than X-group Nubians (C2H =0.315), which in turn are more closely related than Christian-era Nubians (C2H =0.523). Polar tooth comparisons corroborate these increasing distances,

Figure 1. Dental crown

measurements


  • Login