New experimental data on the distance of sling projectiles

The range of stones cast by slings used in the past is debated. In the Central Andes, slings are asserted to be important weapons of prehispanic war, and have been recovered archaeologically. Rolled river cobbles and stones presumed to be slingstones found at fortified hilltop archaeological sites are presented as evidence that slings were used at these fortifications. Yet sling use has not been adequately tested at hillforts. Experiments conducted in Europe by a novice slinger have attempted to illuminate the range of sling cast stones at ancient hillforts. Data acquired from native slingers is necessary to more accurately assess distances achieved by projectiles launched by slings. We present data from sling experiments carried out in Puno, Perú among Quechua-speaking herders who are experienced slingers. The results demonstrate that a prior model of the maximum theoretical distance of sling cast stones underestimates their range. Results also show significant differences in the use of slings by men and women, and by different age groups. These new data permit a better approximation of warfare that has bearing on our interpretation of fortified sites.     

Toward an archaeology of late prehistoric Eskimo bands in coastal northwest Alaska

The methodology of analogical explanation of prehistoric Eskimo remains in northwest Alaska is examined. The sociospatial organization of Wales or, Kingigan, settlement and the greater Kingikmiut territory is evaluated as an example based on ethnohistorical studies and archaeological excavations carried out at three sites in the locality since 1926, and relationships between the archaeological material and historic socio-spatial divisions of Kingigan are explored. The review reveals that only two historic family compound locations have been sampled archaeologically, and that several others have not yet been sampled. However, existing samples nevertheless represent the larger Agianamiut, Kiatanamiut and Kurigitavik districts in the settlement, ca. AD 1800–1850 and extending back to prehistoric times from ca. AD 1000. A nomenclature for socio-spatial units is proposed that includes compound families, local bands, tribal capitals and tribes based on examples of historic Eskimo territorial organization. Caution is suggested in applying the nomenclature to prehistoric cultures in cases where continuity of artifact forms, art styles and motifs with historic local cultures are not demonstrable. Application of historic Eskimo analogues to prehistoric entities such as Birnirk and Punuk cultural remains risk fallacious interpretations because continuity with historic examples are not demonstrable and alternative explanations cannot be eliminated.     

Understanding the variability in freshwater radiocarbon reservoir offsets: a cautionary tale

Freshwater resources in past diets can lead to inaccuracies when attempts are made to ascertain their radiocarbon ages or those of the consumers. Radiocarbon reservoir effects may lead to significant age offsets when the bones or other tissues of these consumers are radiocarbon dated. A number of recent studies have investigated freshwater reservoir offsets. However no study thus far has satisfactorily obtained a ubiquitous freshwater reservoir correction due to variability in the ecosystems analysed. This study tests the possibility of predicting freshwater reservoir effects from the carbonate alkalinity of the water with measurements on modern fish bone and water samples. A predictive capability would be especially valuable in the absence of well-preserved archaeological fish bone. We surveyed samples from lakes and rivers in varying geological settings in Britain and Ireland. Modern fish bone and water samples were analysed to investigate modern radiocarbon offsets from the atmosphere. Archaeological fish bone was also analysed to examine past reservoir offsets at selected sites. Stable carbon and nitrogen isotope values were measured to aid in interpretation of any variability in the offsets. Large freshwater reservoir offsets were measured in some modern and archaeological samples (maximum offset = 1638 ¹⁴C years). The freshwater reservoir offsets in the fish bone were highly correlated with alkalinity of water in modern lake sites analysed. However, a high amount of variation within and between fish species was also evident in the results, precluding the possibility of providing regional corrections for freshwater reservoir offsets from alkalinity although this still may provide a general guideline. The variability is thought to be due to differences in the diet of individual fish.     

Radiocarbon dating of prehistoric hearths in alpine northern Sweden: problems and possibilities

The chronology of prehistoric Sami settlement sites has previously been established by conventional radiocarbon dating of bulk charcoal samples associated with hearths from sunken hut floors (stállo-foundations). Here we present results of a comprehensive dating exercise of stállo-foundations in the alpine area of northern Scandinavia using Accelerator Mass Spectrometry (AMS) radiocarbon dating of charcoal. Over a 3 km² study area, AMS calibrated ages of hearth charcoal from 22 stállo-foundations across 12 sites securely date these features to between cal. AD 640 and AD 1180. Only small variations in age were found between charcoal samples from different areas of a given hearth. Statistical analysis of all the charcoal AMS radiocarbon dates obtained reveals that 12 stállo-foundations across nine sites are contemporaneous and date to the Viking Period (AD 800–AD 1050). The tightly constrained AMS-based chronology of stállo-foundations contrasts with the existing chronology based on conventional radiocarbon analysis, which places these features within a significantly greater time-frame of between AD 600 and AD 1900, with most dates ranging between AD 800 and AD 1350.This discrepancy is likely to result from the necessity of collecting composite hearth charcoal particles, which may originate from different phases of occupation, in order to achieve the required final carbon content for conventional radiocarbon analysis. We argue that the new AMS-based radiocarbon chronology of stállo-foundations presented here supersedes the existing chronology based on conventional (Gas Proportional counting) radiocarbon analysis and we advocate the use of AMS radiocarbon dating in future hearth investigations.     

Managing flood risk in the UK: towards an integration of social and technical perspectives

In recent years, an apparent increase in the frequency and severity of floods in the UK has led to growing concerns about societal exposure and vulnerability to flooding, particularly in the context of climate change, floodplain development and changing insurance practices. Despite the important link between assessments of exposure to flooding (hazard assessments) and issues of societal vulnerability, this link has rarely been explored in detail and has often been reflected in policy terms by a highly technocratic approach to flood risk management. Indeed, more comprehensive studies have usually favoured rigid and deterministic definitions of vulnerability, in keeping with the wider technocratic paradigm pervading management institutions. In an attempt to redress the balance, this paper considers the role of hazard assessment and issues of societal vulnerability as mutually informative debates and advocates a movement away from the technocratic ideals currently favoured in the UK.     

Monongahela subsistence-settlement change: The late prehistoric period in the lower Upper Ohio River valley

The Late Prehistoric period in the lower Upper Ohio River basin of southwestern Pennsylvania and adjacent portions of Maryland, Ohio, and West Virginia is dominated by a material-culture assemblage named Monongahela. Monongahela has been associated with subsistence-settlement systems that included a large number of upland villages that were often far removed from large river valleys. The existence of these villages has been explained as resulting from intra- and interregional warfare. While these upland villages may have obtained as a result of warfare, it is argued that they served as important links in regional divided risk strategies in response to local environmental and social risks.     

Historical ecology of late Holocene sea otters (Enhydra lutris) from northern British Columbia: isotopic and zooarchaeological perspectives

We examined the isotopic composition (δ¹³C and δ¹⁵N) of sea otter (Enhydra lutris) bone collagen from ten late Holocene (ca. 5200 years BP–AD 1900) archaeological sites in northern British Columbia (BC), Canada. Because sea otters are now extinct from much of this region and have not fully recolonized their former range (e.g. Haida Gwaii and most of northern BC) these data represent an important first step towards better understanding sea otter foraging ecology in BC. The isotopic data suggest a diet composed primarily of benthic invertebrates, with a very low reliance on epibenthic fish. There is very low isotopic and thus inter-individual dietary variability in Holocene BC sea otters during the late Holocene. Furthermore, zooarchaeological abundance data suggest that otters represented a widespread and significant focus of aboriginal hunting practices on the northern BC coast during the mid- to late-Holocene. The consistent reliance on a small number of low-trophic level prey and limited dietary variability in Holocene BC sea otters may reflect top-down impacts on otter populations by aboriginal peoples. As part of our assessment of sea otter diet, we review trophic discrimination factors (Δ¹³C and Δ¹⁵N) for bone collagen from published literature and find marked variability, with mean values of +3.7 ± 1.6 for Δ¹³C (n = 21) and +3.6 ± 1.3 for Δ¹⁵N (n = 15).     

Re-placing plainware: Production and distribution of domestic pottery,and the narration of the pre-colonial past in the Peruvian Andes

The location of domestic pottery production is central to archaeological narratives. Yet too often, unfounded assumptions are made about place of production, especially in relation to place(s) of distribution and use. Only rarely is this geography of production and distribution explored in detail and with perspective. Here, we investigate this problem in the context of the Peruvian Andes. We present the results of extensive ethnoarchaeological research on the manufacture of domestic vessels in over thirty villages with potters in Northern Peru. Drawing on the ethnographic concept of technical style, we identify three tendencies on the relationships between toolkits, manufacturing techniques, geographic units, and exchange. From these tendencies we develop two models of domestic pottery production and distribution: the local production model and the non-local production model, which are applied in analysis of archaeological materials. While this distinction is apparently simple, we demonstrate how the explicit or implicit use of each of these models has shaped some of the most important debates and issues in Andean archaeology. In sum, we explain how understandings of the manufacture, exchange, and use of plainware impacts narratives about the pre-colonial past.     

The northern fluted point complex: technological and morphological evidence of adaptation and risk in the late Pleistocene-early Holocene Arctic

Analyses of fluted point technology and Paleoindian technological risk have contributed to our understanding of human adaptation across North America in the late Pleistocene and early Holocene. However, poor chronological control has dissuaded similar studies of fluted points found in Alaska and northern Yukon and our understanding of their adaptive role in early arctic adaptations remains unclear. Two new archeological sites have provided reliable radiocarbon data and for the first time, a comprehensive analysis of northern fluted points is possible. Here, technological and morphological analyses of northern fluted points are presented, including variables statistically evaluated and compared to a collection of fluted Folsom artifacts serving as a reference. Variation in tool shape was measured using geometric morphometrics, and a new approach to landmark placement designed to characterize basal morphology and allow the analysis to include tool fragments is presented. Results confirm that northern fluted points represent a cohesive technological strategy and are used to formulate hypotheses suggesting its service as a risk-management system promoting ease-of-replacement-after-failure to offset transport costs and reduce risk during long-distance travel.     

Avorio d'ogni ragione: the supply of elephant ivory to northern Europe in the Gothic era

This article accounts for the hitherto unexplained increase in the availability of ivory in mid-thirteenth-century France through an alteration in the medieval trade routes that brought elephant tusks from Africa to northern Europe. A newly-opened passage through the Straits of Gibraltar allowed a small amount of luxury goods to be shipped together with bulk materials necessary to the flourishing textile industries of northern Europe.     

Avorio d'ogni ragione: the supply of elephant ivory to northern Europe in the Gothic era

This article accounts for the hitherto unexplained increase in the availability of ivory in mid-thirteenth-century France through an alteration in the medieval trade routes that brought elephant tusks from Africa to northern Europe. A newly-opened passage through the Straits of Gibraltar allowed a small amount of luxury goods to be shipped together with bulk materials necessary to the flourishing textile industries of northern Europe.     

Archaeological markers of agricultural risk management

Managing agricultural risk, or variance in annual production, is a priority for farmers and herders. This article reviews the ethnographic and historical literature on agricultural risk management and identifies diversification and intensification as two distinct approaches to managing risk. Quantitative analysis of plant and animal remains from archaeological sites produces robust datasets that can be used to test predictions of risk management models related to diversification and intensification strategies. I present a variety of established and novel paleoethnobotanical and zooarchaeological measures that have implications for risk management and argue that multiple lines of evidence are needed to identify risk-management practices from archaeological remains. The article concludes with a case study of the multiperiod urban center of Gordion in central Turkey, where quantitative analysis of plant and animal remains demonstrates diachronic changes in agricultural risk management over 3000 years of occupation.     

Archaeobotanical evidence of prehistoric maize (Zea mays) consumption at the northern edge of the Great Plains

Analysis of starch granules, phytoliths, and plant macrofossils from archaeological features and carbonized food residue provides important new insight into the extent of prehistoric maize (Zea mays) consumption on the North American Great Plains. These data suggest that consumption of maize, and probably other cultigens, was widespread on the eastern Canadian Prairies between approximately AD 1000 and 1600. Domesticated plants may have been grown locally, acquired through trade, or transported into the region following dispersal of family groups from horticultural villages located elsewhere. However, the lack of strong artifactual evidence of gardening, and the small-scale nature of sites on the eastern Canadian Prairies indicate that local horticulture, if practiced, was non-intensive.     

The late prehistoric Cahokia cultural system of the Mississippi River valley: Foundations,florescence, and fragmentation

The development, florescence, and subsequent demise of an organizationally complex cultural system in the American Bottom, part of the central Mississippi River valley, spanned a little over half a millennium. Cahokia, the largest Precolumbian site in the United States, is located within this segment of fertile floodplain, as are many other subsidiary settlements that varied greatly in terms of their size, internal structure, and occupational histories. Numerous projects over the past 30 years have resulted in the rapid accumulation of considerable information and divergent interpretations about the nature of the societies represented archaeologically by a series of superimposed settlement systems.     

The study of collector variability in the transition to sedentary food producers in northern Colombia

Human adaptation to the tropics by populations of collectors has been a longtanding issue of debate, especially with regard to the role that collectors may have played in pathways toward sedentism and food production. In this essay, I examine significant differences in strategies developed for estuarine environments versus the inland environments of the transitional savannas of northern Colombia to analyze how these two adaptations articulate with the processes which led toward sedentism and food production in neotropical northern Colombia. Contrary to the received wisdom, I argue that the exploitation of rich estuarine environments is not necessarily a prelude to food production; seed exploitation early in the sixth millennium B.P. in the northern Colombian transitional savanna zone provides a second and arguably more probable model.     

Changing models of settlement,economy, and ritual activity: Recent research in late prehistoric central Europe

Recent research in central Europe is changing our understanding of the role of centers in economic and social systems of late prehistoric times. Increased attention to smaller, more typical settlements shows that they engaged in economic activities similar to those at the large, fortified complexes. Abundant new evidence pertaining to ritual activity indicates that ritual was often integrated into daily life at settlements. The evidence from the exceptionally rich data on late prehistoric central Europe can be of substantial value for developing models applicable to contexts in other parts of the world.     

Isotopic analysis of the ecology of herbivores and carnivores from the Middle Pleistocene deposits of the Sierra De Atapuerca,northern Spain

Carbon and oxygen isotope values reveal resource partitioning among the large mammal fauna from three contemporaneous Middle Pleistocene hominid-bearing localities within the Sierra de Atapuerca (northern Spain). Carbon isotope values sampled from the tooth enamel of fauna present during Atapuerca Faunal Unit 6 show that a C₃-dominated ecosystem surrounded the area where fossils were preserved during this time. For the herbivores, Fallow deer isotope values are significantly different from Red deer and horses and show that this species did not forage in open environments at this locality. Red deer and horses show similar feeding strategies with less negative carbon values implying use of more open environments for these taxa. For the carnivores, carbon isotope values for Ursus deningeri are significantly different from either lions (Panthera leo) or foxes (Vulpes vulpes) and support the contention that this species is herbivorous. Special metabolic mechanisms involved in hibernation in U. deningeri might also have influenced its isotope values. The carbon isotope values of remaining carnivores were similar and suggest that each was typically a generalist carnivore, eating a wide variety of prey items. While the isotopic results generally correspond to ecology indicated by previous techniques, this study shows that isotope analyses can provide further insights that alternate techniques do not provide. Isotope analyses can help elucidate the ancient ecology of taxa present in the Sierra de Atapuerca during the Middle Pleistocene allowing for an accurate portrayal of the setting in which humans lived.     

Identifying the sources of Inka period ceramics from northern Chile: results of a neutron activation study

To examine regional patterns of ceramic production and distribution during the era of Inka domination in northern Chile, we determined the elemental compositions of 157 samples of archaeological ceramics and geological clays from the sites of Catarpe and Turi using instrumental neutron activation analysis. We identified two major and three minor composition groups in the ceramics. The major groups, High Cr and Low Cr, are linked to clays from two broad geological contexts within the region, while the minor Low Na group is made up of ceramics imported from northwestern Argentina. The distribution of the composition groups indicates that, in the Catarpe–Turi region, patterns of ceramic production differed for different vessel types: jars were made from clay and temper acquired near the sites where the jars were used, while bowls were made of material coming from more distant sources. The geographical distribution of the analyzed ceramics indicates that bowls were exchanged between Catarpe and Turi in a pattern more similar to tribute/extraction than to market exchange, with Catarpe being the dominant site. The compositional analysis also demonstrates that Inka-style ceramics were being locally produced at sites in this region during the era of Inka domination.     

Drivers of technological richness in prehistoric Texas: an archaeological test of the population size and environmental risk hypotheses

This paper reports a study that sheds light on an issue that is important for understanding human behavioral evolution—the factors that influence hunter-gatherers’ decisions regarding the number and degree of specialization of their tools. Two primary drivers of technological richness and complexity have been proposed in the anthropological literature: population size and environmental risk. In general, ethnographic studies tend to support environmental risk as the primary driver, whereas the limited number of archaeological studies that have been carried out seem to support population size. These findings are difficult to reconcile because problems exist for both sets of studies. The present study was designed with these problems in mind. We used an archaeological dataset to test which of the hypothesized driving factors—population size or environmental risk—best explains changes in technological richness. More specifically, we investigated whether changes in the number of point types in Texas from the first occupation more than 13,000 years ago to the Late Prehistoric period, around 400 years ago, are better explained by environmental risk or by population size. Bivariate correlations and a generalized linear model indicate that temporal changes in point-type richness in Texas are significantly associated with changes in one of our proxies of risk—global temperature. We found no relationship between temporal changes in point-type richness and changes in population size. Thus, the results derived from this study are consistent with the environmental risk hypothesis and inconsistent with the population size hypothesis.