IAOS Bulletin 26

xvii, 287 hlm., ilus., 24 cm

Prismatic Blade Production in the Lower Cacaulapa Valley, Honduras: Implications for a Late Classic Political Economy

Investigations of ancient political economies frequently focus on craft production. How manufacturing is organized can provide critical insights on more than the economy because social interactions and political processes are also involved. Here we consider how the acquisition, fabrication, and distribution of obsidian blades figured in the political strategies of craftworkers and elites within the Late Classic (AD 600–800) lower Cacaulapa Valley, northwestern Honduras. This evidence provides insights into the organization of craft manufacture across southeastern Mesoamerica and suggests that current models do not capture the varied production strategies that may be pursued within the same polity. Las investigaciones sobre las economías políticas de los antiguos Mayas se enfocan frecuentemente en la producción artesanal. El modo de organización del proceso demanufactura nos puede proporcionar una visión crítica que va más allá de la economía, debido a que involucra múltiples interacciones sociales y políticas. En este trabajo consideramos cómo la adquisición, fabricación y distribución de navajas de obsidiana formó parte de las estrategias políticas de los artesanos y las élites del Clásico tardío (600–800 dC) en el valle inferior de Cacaulapa, en el noroeste de Honduras. Esta evidencia arroja una imagen de la organización de la manufactura artesanal en el sureste de Mesoamérica y sugiere que los modelos actuales no encapsulan las múltiples estrategias de producción que pueden perseguirse dentro de una entidad política

Reconsidering the Reality of Southeastern Mesoamerica: Continuity, Diversity, and Inter-Valley Interaction in Western Honduras

The late fifth century AD was a time of rapid transformation in non-­‐Maya southeastern Mesoamerica. From this time forward, the landscape of western Honduras would become filled with increasingly complex polities and rising populations. So too is there evidence for a distinctive change in material culture, such as the development of widely shared regional polychrome ceramic traditions and the stabilization of obsidian exchange networks. Arguably, more than any other period in prehistory, it is during the Late Classic that a unique cultural identity emerges from this part of southeastern Mesoamerica. In this paper we seek to answer the question, can we characterize the diverse peoples and communities of Late Classic western Honduras as belonging to a culture area of shared affiliation and concordant identities, or is “southeastern Mesoamerica” nothing more than a geographic designation, which encompasses a diversity of strategies just different enough to defy uniform classification? To address this question we place the findings of our own research in the broader context of the long-­‐term research projects conducted by our colleagues since the 1980s. In particular, we emphasize the inter-­‐valley interactions among these polities to illuminate the shared and divergent paths taken by these communities during this period

Individual winter movement strategies in two species of Murre (Uria spp.) in the Northwest Atlantic

Individual wintering strategies and patterns of winter site fidelity in successive years are highly variable among seabird species. Yet, an understanding of consistency in timing of movements and the degree of site fidelity is essential for assessing how seabird populations might be influenced by, and respond to, changing conditions on wintering grounds. To explore annual variation in migratory movements and wintering areas, we applied bird-borne geolocators on Thick-billed Murres (Uria lomvia, n = 19) and Common Murres (U. aalge, n = 20) from 5 colonies in the Northwest Atlantic for 2–4 consecutive years. Thick-billed Murres ranged widely and among-individual wintering strategies were highly variable, whereas most Common Murres wintered relatively near their colonies, with among-individual variation represented more by the relative use of inshore vs. offshore habitat. Within individuals, some aspects of the wintering strategy were more repeatable than others: colony arrival and departure dates were more consistent by individual Common than Thick-billed Murres, while the sizes of home ranges (95% utilization distributions) and distances travelled to wintering area were more repeatable for both species. In consecutive years, individual home ranges overlapped from 0–64% (Thick-billed Murres) and 0–95% (Common Murres); and the winter centroids were just 239 km and 169 km apart (respectively). Over the 3–4 year timescale of our study, individuals employed either fixed or flexible wintering strategies; although most birds showed high winter site fidelity, some shifted core ranges after 2 or 3 years. The capacity among seabird species for a combination of fidelity and flexibility, in which individuals may choose from a range of alternative strategies, deserves further, longer term attention

Miniaturized data loggers and computer programming improve seabird risk and damage assessments for marine oil spills in Atlantic Canada

Obtaining useful information on marine birds that can aid in oil spill (and other hydrocarbon release) risk and damage assessments in offshore environments is challenging. Technological innovations in miniaturization have allowed archival data loggers to be deployed successfully on marine birds vulnerable to hydrocarbons on water. A number of species, including murres (both Common, Uria aalge, and Thick-billed, U. lomvia) have been tracked using geolocation devices in eastern Canada, increasing our knowledge of the seasonality and colony-specific nature of their susceptibility to oil on water in offshore hydrocarbon production areas and major shipping lanes. Archival data tags are starting to resolve questions around behaviour of vulnerable seabirds at small spatial scales relevant to oil spill impact modelling, specifically to determine the duration and frequency at which birds fly at sea. Advances in data capture methods using voice activated software have eased the burden on seabird observers who are collecting increasingly more detailed information on seabirds during ship-board and aerial transects. Computer programs that integrate seabird density and bird behaviour have been constructed, all with a goal of creating more credible seabird oil spill risk and damage assessments. In this paper, we discuss how each of these technological and computing innovations can help define critical inputs into seabird risk and damage assessments, and when combined, can provide a more realistic understanding of the impacts to seabirds from any hydrocarbon release