BEFORE THE DELUGE: CANADIANS ON FOREIGN OWNERSHIP, 1920–1955

More Americans now reside in Canada than at any time since the Vietnam War. This article documents and analyzes the migration, settlement, and identity of US-born residents in three Canadian cities. My work helps fill the gap in the scholarly literature on issues related to international migration at the Canadian–US borderlands. The article's overarching goal is to illustrate that transnationality, as exhibited by US immigrants in Canada, is far more complex than prior studies of transnational identity have indicated. Findings from this study indicate that transnational linkages and identities are geographically and temporally contingent and are, as such, a reflection of both time and place. My comparison of the shifting identities of American migrants who reside in three different metropolitan areas in Canada allows a more critical analysis of the ever-shifting terrain of transnational identities as they are expressed in different contexts. Data analyzed for this study were compiled from the Canadian census for the years 1961 through 2006, survey questionnaires, unstructured and structured interviews, and on-site field work.     

Clarifying prehistoric parasitism from a complementary morphological and molecular approach

This paper reports an approach to the identification of prehistoric parasitic infection, which integrates traditional morphological methods with molecular methods. The approach includes the strengths of each method while mitigating the limitations. Demonstrating the efficacy of this approach, we provide a case study from a 1400 year old desiccated fecal sample from La Cueva de los Muertos Chiquitos, archaeological site, near Rio Zape, Durango, Mexico. Traditionally prepared microscope slides were processed via microscopy and tentative ascarids were identified. Information regarding the parasites' developmental stage was recorded. DNA was then extracted directly from the slide material. From this DNA extract, a small segment of the 18S ribosomal RNA gene variant that is specific to Ascaris, and its phylogenetically close relatives, was targeted for PCR amplification and sequencing. Phylogenetic analysis of the DNA sequence best matched a member of physalopterids, rather than ascarids, with a single exception of a match to Contracaecum spiculigerum. Subsequent extractions, amplifications and sequencing of the original rehydrated coprolite material confirmed these results. The C. spiculigerum sequence represented a phylogenetic anomaly and subsequent analysis determined the sequence was an error in the BLAST database, likely attributable to misidentification of juvenile specimens prior to sequencing and submission. Physaloptera are a difficult genus to identify morphologically and can carry major health burdens. They may be underreported in humans, in part, because of morphological similarities to the more common human parasites belonging to ascarids. We conclude that integrating traditional morphological methods with molecular methods can help resolve this issue, in both contemporary and prehistoric populations.     

The impact of manuring on nitrogen isotope ratios in cereals: archaeological implications for reconstruction of diet and crop management practices

Recent archaeological studies of human diet have used stable nitrogen isotope ratios (δ¹⁵N) from human bone collagen to infer the relative importance of terrestrial plant and animal foods. This approach is based on widely observed enrichment of δ¹⁵N up the food chain, plants having distinctly lower values than the herbivores that consume them. Studies of early farming diets in Britain, Denmark and Germany have tended to detect relatively high δ¹⁵N values (e.g. c. +9‰), interpreted as evidence of a diet largely based on animal products, though archaeobotanical evidence for crop cultivation (e.g. carbonised cereal grain and chaff) is widespread. This paper investigates the impact of manuring on δ¹⁵N values in modern cereals, and of charring on these cereal values. The results from two long-term experiments demonstrate that manuring significantly raises δ¹⁵N in cereal grain and chaff. Depending on manuring levels and frequency, it appears that human diets with a major component of such grain would conventionally be interpreted as indicating a largely animal-based diet or a mixed plant/animal diet. Moreover, preliminary analyses of experimentally charred grain and chaff from manured and unmanured conditions are promising for the extraction of reliable ancient δ¹⁵N values from archaeobotanical cereal remains. The wider implications of these results, and the need for further work, are discussed.     

Geoarchaeological approaches to the environmental history of Cyprus: explication and critical evaluation

Geoarchaeology represents crossdisciplinary research focused on environmental issues and human activities, and directed primarily to social scientists. Site micro-studies are central to the enterprise, emphasizing cultural sediments and the taphonomic record of site formation, preservation, or destruction. But when expanded to include off-site investigation and watershed studies, geoarchaeology can go well beyond stratigraphy and context, to address human impacts on the environment or long-term sustainability. This paper articulates a research agenda to evaluate the largely anecdotal premise that the island of Cyprus has been degraded by millennia of improvident land use. First, it outlines Holocene settlement, land use and forest histories, as a differentiated model against which to apply specific types of investigation, and in conjunction with other archaeological sciences. Second, it applies Quaternary-style watershed study to confront commonplace misunderstandings about possible degradation, to show that most of the slope and stream deposits on Cyprus are of Pleistocene age. Third, it switches to examples of site micro-geoarchaeology to illustrate the possibilities of understanding detailed change. The purpose is heuristic, in the absence of many more site and off-site studies that incorporate bioarchaeology. Provisional inferences suggest that environmental damage may be limited, that even with heavy land-use stress, climatic triggers were critical to inaugurate change, and that the system may be more resilient than anticipated. Such caveats may encourage greater attention to environmental research design in ongoing and future excavation projects.