David R. Abbott

The cross-scale interplay between social and biophysical context and the vulnerability of irrigation-dependent societies: archaeology's long-term perspective.

What relationships can be understood between resilience and vulnerability in socialecological systems? In particular, what vulnerabilities are exacerbated or ameliorated by different sets of social practices associated with water management? These questions have been examined primarily through the study of contemporary or recent historic cases. Archaeology extends scientific observation beyond all social memory and can thus illuminate interactions occurring over centuries or millennia. We examined trade-offs of resilience and vulnerability in the changing social, technological, and environmental contexts of three long-term, pre-Hispanic sequences in the U.S. Southwest: the Mimbres area in southwestern New Mexico (AD 650–1450), the Zuni area in northern New Mexico (AD 850–1540), and the Hohokam area in central Arizona (AD 700–1450). In all three arid landscapes, people relied on agricultural systems that depended on physical and social infrastructure that diverted adequate water to agricultural soils. However, investments in infrastructure varied across the cases, as did local environmental conditions. Zuni farming employed a variety of small-scale water control strategies, including centuries of reliance on small runoff agricultural systems; Mimbres fields were primarily watered by small-scale canals feeding floodplain fields; and the Hohokam area had the largest canal system in pre-Hispanic North America. The cases also vary in their historical trajectories: at Zuni, population and resource use remained comparatively stable over centuries, extending into the historic period; in the Mimbres and Hohokam areas, there were major demographic and environmental transformations. Comparisons across these cases thus allow an understanding of factors that promote vulnerability and influence resilience in specific contexts.

Ceramics and Community Organization among the Hohokam

Among desert farmers of the prehistoric Southwest, irrigation played a crucial role in the development of social complexity. This innovative study examines the changing relationship between irrigation and community organization among the Hohokam and shows through ceramic data how that dynamic relationship influenced sociopolitical development. David Abbott contends that reconstructions of Hohokam social patterns based solely on settlement pattern data provide limited insight into prehistoric social relationships. By analyzing ceramic exchange patterns, he provides complementary information that challenges existing models of sociopolitical organization among the Hohokam of central Arizona. Through ceramic analyses from Classic period sites such as Pueblo Grande, Abbott shows that ceramic production sources and exchange networks can be determined from the composition, surface treatment attributes, and size and shape of clay containers. The distribution networks revealed by these analyses provide evidence for community boundaries and the web of social ties within them. Abbotts meticulous research documents formerly unrecognized horizontal cohesiveness in Hohokam organizational structure and suggests how irrigation was woven into the fabric of their social evolution. By demonstrating the contribution that ceramic research can make toward resolving issues about community organization, this work expands the breadth and depth of pottery studies in the American Southwest.

Plausible ethnographic analogies for the social organization of Hohokam canal irrigation

This paper presents the results of a juxtaposition of archaeological findings on Hohokam irrigation and ethnographic research on the social organization of irrigation. There are no ethnographic or historic records pertaining to the Hohokam, so the comparative ethnographic approach is perhaps more productive than in other situations. Several forms of canal irrigation organization are considered, including politically centralized, acephalous, private, and several forms of communal. We find that politically centralized, acephalous, and private forms are implausible in the Hohokam context. Several of the communal forms are plausible. We find no ethnographic basis for positing a valley-wide management system.

Ballcourts and ceramics: the case for hohokam marketplaces in the Arizona desert

During the middle Sedentary period (ca. A.D. 1000-1070) in the deserts of southern and central Arizona, crowds from near and far regularly gathered at the centers of Hohokam villages to participate in ritual ballcourt festivities. These events were ideal venues for barter and exchange, leading some theorists to hypothesize that periodic marketplaces were associated with the ritual ballgames. Recent ceramic provenance and vessel-form evidence from the Phoenix basin have shown that the production of decorated and utilitarian pots was highly concentrated during this time and large numbers of bowls and jars were evenly distributed to far flung consumers. These findings have supported the marketplace hypothesis, suggesting that an efficient and reliable mechanism was available for moving large numbers of commodities across the region. The high volume of ceramic transactions, however, seems to have placed the Hohokam case beyond the capabilities of nascent marketplaces documented from ethnohistoric and ethnographic evidence. In this paper, we support the idea that market-place barter was a central component of the Hohokam economy by presenting new ceramic data from the lower Salt River valley, which temporally links the demise of the ballcourt ceremonialism with a transformation in the organization of pottery production and distribution. We then examine some unusual circumstances pertaining to the Hohokam regional system that may help to explain how consumers could have so heavily depended on a network of horizontally organized, periodic marketplaces for basic necessities like earthenware containers.

Extensive and long-term specialization: Hohokam ceramic production in the Phoenix Basin, Arizona

The ceramic evidence from 10 sites in the lower Salt River valley, Arizona, represents the entire temporal interval defined as the pre-Classic era of Hohokam prehistory. These data indicate that nearly all of the clay pots consumed in the valley over a period lasting six centuries were manufactured by just a few potter groups. The uninterrupted duration, high volume, and the large variety of vessel forms and wares produced for exchange may have been unparalleled in the prehistoric Southwest. A temporally comprehensive model of pottery manufacture in the Phoenix basin is presented, its implications for the origins of specialization, and the influence of intensive irrigation are discussed. In addition, the implications are considered for a previously published model of the Hohokam economy centered on marketplace transactions (Abbott, Smith, and Gallaga 2007).

The Economic Implications of Hohokam Buff Ware Exchange During the Early Sedentary Period

ABSTRACT Hohokam buff ware ceramics are ubiquitous at prehistoric settlements across the Phoenix Basin. Determining where those pots were made and how they were distributed are primary topics for investigating the Hohokam economy. We review the available evidence on buff ware provenance, which indicates that most of the decorated wares were made by specialists in the middle Gila River Valley for exchange across a large territory. We then compare the sizes and shapes of vessels at five early Sedentary period villages scattered across the Phoenix Basin and find a consistency in the mix of vessel forms despite functional and locational differences among the sites. Our results lead us to hypothesize that everyone in that region received a standard buff ware assemblage, implying efficient and sophisticated mechanisms for commodity distribution that may have included centralized marketplaces at ballcourt villages.

Specialized Production of Hohokam Plain Ware Ceramics in the Lower Salt River Valley

ABSTRACTHohokam plain ware tempers accurately indicate the location of pottery production. Results from an analysis of Sedentary period assemblages from Las Colinas and La Lomita indicate significant movement of undecorated pots in Canal System 2 and from sites in adjacent canal systems to the south. In particular, the scale of pottery exchange from Las Colinas to La Lomita, as well as the import of jars from the South Mountain area, suggest specialized production of Hohokam plain wares. Preliminary results provide a proxy of socioeconomic interaction between Sedentary period Salt River Basin settlements.

Hohokam Exchange and Early Classic Period Organization in Central Arizona: Focal Villages or Linear Communities?

Abstract Settlement pattern data in the lower Salt River valley of central Arizona, near Phoenix, have led to different models of Hohokam political community organization during the early Classic period (ca. A.D. 1150–1300). The “focal village” model posits political communities centered on a single large village with monumental architecture surrounded by smaller settlements. The “linear community” model envisions an elongated arrangement integrating populations distributed along the routes of irrigation canals. Each model has implications for the nature of cooperation within and between settlement clusters and the degree to which large-scale irrigation management influenced the development of Hohokam community organization. In this analysis, ceramic sourcing studies are used to outline networks of interaction to examine the different models. Our results provide some evidence for a crosscutting patchwork of geographically dispersed social groups which fits most comfortably within the linear community model.

Hohokam Ritual and Economic Transformation: Ceramic Evidence from the Phoenix Basin, Arizona

The Hohokam regional system in southern and central Arizona was marked by a dense network of ballcourts during the eleventh century. The ritual ballgames provided venues for social and economic interaction that probably included the barter and exchange of thousands of clay containers each year. Previous ceramic evidence has shown that pottery production was highly concentrated with far-flung distribution, although by the twelfth century the ballcourt network had collapsed. New data from Las Colinas, a ballcourt village situated near the lower Salt River, demonstrate that the organization of pottery manufacture and distribution radically changed in the lower Salt River valley just at the time the Las Colinas ballcourt was abandoned, implying that the ritual ballgames had been a central component of the Hohokam regional economy.

The Provenance and Concentrated Production of Hohokam Red-on-Buff Pottery: Implications for an Ancient Arizona Economy

Recent advancements in determining the production sources of prehistoric Hohokam pottery from the Phoenix basin, Arizona, have shown that ceramic manufacture was highly concentrated during the Sedentary period (ca. AD 950-1100). For example, nearly all of the bowls and small jars consumed in the lower Salt River valley were decorated red-on-buff pots imported from the middle Gila River valley to the south. An analysis of the sand temper in the buff wares showed that many, if not most, of these red-painted vessels were made in one locality along the Gila River, thereby supporting the idea that a reliable and efficient mechanism for commodity exchange was extant at that time, possibly in the form of periodic marketplaces associated with ritual ballgames. The pottery results imply a level of dependence on ballgame-related transactions that had not been recognized before, indicating their central importance to the Hohokam Sedentary period economy.