JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.Recent research on prehispanic water management throughout the Americas has made significant contributions to our understanding of the diversity of adaptive systems employed in regions where water is seasonally scarce, such as the Maya Lowlands. Since much of this workfocuses on large-scale technologies, the political and economic consequences of these systems for smaller social units remain poorly understood. Social dynamics associated with less-intensive forms of water use and control are investigated at Late Classic (A.D. 600-900) Copdn, in a water-rich setting of western Honduras. Ethnographic, iconographic, and archaeological datasets suggest that lagoons located in Copdn's urban residential sectors may have been conceptualized, utilized, and maintained as communal property with ancestral ties by the inhabitants of surrounding domestic groups. By shifting the scale of analysis from the polity to the community level, these lagoons can be viewed as forms of communal property that created an economic and ideological basis for local social integration but offered limited opportunity for the centralization of power through monopolistic control. Yet, toward the end of the Late Classic, the appropriation of water-related dynastic symbolism and possibly ritual seems to have provided nonroyal elites with a meansfor creating local social identities, which undercut and eroded royal authority.Las investigaciones recientes del manejo del agua en Mesoamerica prehispdnica han contribuido a nuestro entendimiento de la diversidad de sistemas adaptivos que se empleaban en regiones de poco agua, como las Tierras Bajas Mayas. Sin embargo, como mucho de este trabajo se enfoque en las tecnologias intensivas de escala grande, se quedan poco entendidas las consecuencias politicas y econdmicas de estos sistemas para unidades sociales pequenas. Se investiga la dindmica social relacionada con formas menos intensivas del uso y control del agua durante el periodo clasico tardio (600-900 d. C. en el sitio maya cladsico de Copdn, Honduras. Al cambiar la escala del andlisis de la ciudad a la comunidad, se sugiere que las lagunas de Copdn, ubicadas en los sectores residenciales urbanos del sitio, puedan haber sido conceptuadas, utilizadas, y mantenidas por los habitantes de los circundantes grupos domesticos como recursos comunales con vinculos ancestrales. De esta manera, las lagunas crearon una base economica e ideologica para la integracidn social local. Sin embargo, haciafinales del cldsico tardio, el uso del simbolismo dindstico, y posiblemente del ritual, relacionado con el agua did a los elites no royales una manera para aumentar su prestigio y posicicn social. Asi, el manejo del agua a la vez integro ...