A conceptual model for freshwater mussel (family: Unionidae) remain preservation in zooarchaeological assemblages

Expectations for survival of vertebrate remains have been well developed and intensely studied in the zooarchaeological taphonomic literature. Taphonomic studies of shellfish remains focus on marine species and on variables relevant to remains from paleontological contexts (e.g., fossil marine beds). In this paper we develop a conceptual framework from which to derive expectations concerning the preservation of freshwater mussel remains focusing on two parameters, shell microstructure and shell shape. Shell size does not influence survivorship. Our model is validated through application to late Holocene zooarchaeological mussel assemblages from north Texas. Taphonomically robust species are important regarding zooarchaeological and biogeographic interpretations based on mussel paleofaunas, and fragile species are important indicators of whether or not an assemblage is well preserved.     

Barley and identity in the Spanish colonial Audiencia of Quito: Archaeobotany of the 18th century San Blas neighborhood in Riobamba

Archaeological excavation of two late-18th century household middens in the San Blas parish of the colonial city of Riobamba resulted in the recovery of samples of archaeobotanical remains dating to the period before the AD 1797 destruction of the city in an earthquake. These seed remains were dominated by barley (Hordeum vulgare) and quinoa (Chenopodium quinoa). The dominance of these two grains in samples from artisans’ households in this marginal neighborhood suggests that we should question the assumption that imported Old World domesticates were associated with more elite houses during the Spanish colonial period in the Andes.     

Radiocarbon dates as data: quantitative strategies for estimating colonization front speeds and event densities

Archaeological analysis of large-scale prehistoric population history requires us to estimate rates of spatial spread during dispersals, and rates and magnitudes of temporal contraction during crashes. Using OxCal’s MCMC sampling routine, I introduce and demonstrate a simple and easily implemented method of estimating front speeds that takes due account of the uncertainty in the archaeological data (in both dates and distances), and argue that this method is more appropriate than those most often used in front speed estimation at present. I also propose a simple and easily implemented method of estimating event densities as a demographic proxy, as an alternative to summed calibrated probability distributions. I argue that this alternative is a significantly better technique, and show that its use also enables us to identify individual archaeological dates that are exerting particularly strong influence on the results, so that we can efficiently allocate our attention when assessing the possible effects of exogenous sampling uncertainty. To illustrate these methods I re-analyse two published datasets relating to the early Paleoindian colonization of North America. My results with the new technique indicate that even with a very noisy dataset, there was clear evidence in the framework of the INTCAL04 calibration curve for a drastic reduction in archaeological event densities following the Younger Dryas onset, followed by a prolonged period of reduced human activity, and a possible renewed phase of rapid growth after the Younger Dryas termination and onset of the Holocene. However, the revised estimate of the Younger Dryas marine reservoir offset in the INTCAL09 calibration curve for ∼12,550–12,900 cal BP changes the picture significantly, by flattening the peak in Clovis-age events and pushing it forward in time into the early Younger Dryas itself.     

Counterfactualism,utopia, and historical geography: Kim Stanley Robinson's The Years of Rice and Salt

Though counterfactual histories are treated with suspicion by some historians, they can be both useful and politically progressive. In fact it is possible to argue that counterfactual historical geographies might even be utopian. Though this seems counter-intuitive (how could alternative histories imagine a better future?), both histories and utopias encourage a kind of popular historicism, a sense that things have been (and could be) different. Whether this makes counterfactual fictions utopian depends on how you define utopia. Recent critical re-appraisals of the concept have suggested that we might think of it as a process, an ongoing critique of the present, not as an end in itself. Counterfactual histories can be utopian because they encourage a critique of teleology and determinism; their geographies can also be utopian because they remind us that spaces are multiple and open. A close reading of Kim Stanley Robinson's Years of Rice and Salt (2002), a novel that describes a world without Europe after a more virulent version of the fourteenth-century plague kills everyone west of Constantinople, demonstrates that counterfactual historical fictions present an unequalled opportunity to reflect upon the practice of history. The novel also suggests that counterfactual historical fictions also allow for a critical evaluation of the nature of space. The paper concludes by demonstrating the value of counterfactual fictions through their representations of history, and of spaces of movement, multiplicity, and agonistic encounter.     

Keeping the Devil at Bay: The Shoe on the Coffin Lid and Other Grave Charms in Nineteenth- and Early Twentieth-century America

Nineteenth- and early twentieth-century graves excavated archaeologically in the United States are occasionally found in association with objects beyond the typical clothing or coffin hardware, such as ceramic vessels, coins, and perhaps most mysterious of all, a single shoe placed on the lid of the coffin or casket. Not clearly described in archival accounts, the single shoe phenomenon within a mortuary context is argued here to be a creolized practice, combining an African cosmology and belief in the liminal state of the soul after death with a European and especially British Isles tradition of shoes as magical objects and potential traps for evil.     

Does foreign policy represent the views of the public? Assessing public and elite opinion on New Zealand's foreign policy

This article1 1. We would like to thank Philip Nel, Robert Patman, Steve Hoadley and Chris Rudd for their advice and overall contribution to this research project. We would also like to thank the anonymous referees for their comments and suggestions. View all notes investigates public opinion on New Zealand's foreign policy, drawing on the findings of a comprehensive poll of general public and elite opinion conducted in 2008. It analyses what New Zealanders think about a range of foreign policy issues and whether public opinion matches actual foreign policy. It argues that the majority of the public support the broad parameters of official policy, but that there are significant differences of opinion in some specific areas, particularly trade agreements and defence. These differences correspond in particular to political orientation and age, gender and income level. The article also outlines the key differences between public opinion and the opinion of the positional elite. Overall, it is argued that the New Zealand public does have clear opinions on foreign policy issues and that these are generally consistent. The article proposes more frequent polling and more public debate over foreign policy.     

INTERPRETING SPATIAL ECONOMETRIC ORIGIN‐DESTINATION FLOW MODELS

Spatial interaction or gravity models have been used to model flows that take many forms, for example population migration, commodity flows, traffic flows, all of which reflect movements between origin and destination regions. We focus on how to interpret estimates from spatial autoregressive extensions to the conventional regression‐based gravity models that relax the assumption of independence between flows. These models proposed by LeSage and Pace ( 2008 , 2009 ) define spatial dependence involving flows between regions. We show how to calculate partial derivative expressions for these models that can be used to quantify these various types of effect that arise from changes in the characteristics/explanatory variables of the model.