Disentangling long bones of foxes (Vulpes vulpes and Alopex lagopus) from arctic archaeological sites

To discern the presence of two anatomically close species within an archaeological assemblage is always a problem for the analyst. A particularly interesting case is the distinction between the red fox (Vulpes vulpes) and the arctic fox (Alopex lagopus), which is often determined using non-rigorous criteria and producing results that must be regarded with caution. Classical methods for separating these two species and determining sexual dimorphism, and eventually the sex ratio, such as analyses using uni- and bivariate plots, are based on arbitrarily fixed limits between sexes. In this text, a more robust statistical method termed mixture analysis (MA) is used to determine the species of limb bones from foxes. First, the MA is applied to a sample of each species using metric data taken from a collection of present-day fox skeletons. Afterwards, the MA is applied to archaeological samples dated to the Dorset period and retrieved from the Tayara site (near Salluit, South Hudson Strait, Nunavik). The results clearly demonstrate that the greatest length (GL) of long bones, especially the humerus and tibia, is the best measurement for distinguishing the species, followed by the distal breadth and the proximal breadth; and that GL is better suited for sexing foxes. The results of MA applied to the Tayara site collection lead to the conclusion that the red fox is present along with the arctic fox among the assemblage, and that there is no fox body size change during the last two millennia in the Eastern Arctic.     

The New Economics of North American Arctic Oil

Over the past five years there has been a remarkable resurgence in oil and gas exploration in the North American Arctic. From completed disinterest only a half a decade ago the region has attracted billions of dollars in new investments from a host of different international oil companies. Unlike the past booms in the region, which inevitably ended in busts, this new wave of development is different. This article examines the changes in both the Arctic itself as well as the global energy environment and concludes that the North American Arctic will see slow bust sustained development over the coming decades, ultimately becoming one of the last great oil producing regions in the world.     

A human-centered GIS approach to modeling mobility on southern Baffin Island,Nunavut, Canada

Southern Baffin Island has been occupied for several millennia, but its enormous size, coupled with scarcity of identified inland archaeological sites that can be confidently linked to coastal occupations, makes modeling ancient seasonal mobility across the region through traditional cost-surface least-cost pathway approaches impractical. We present a method that combines weighted multi-criteria cost surface analysis with a watershed function to create a “mobility-shed” of non-winter travel pathways covering the study area. We evaluate the predictive utility of the resulting pathways for future archaeological survey by assessing their spatial relationships to known archaeological sites. The results of this comparison suggest that elevation and land cover criteria should be augmented with ethnographic and resource availability data to model mobility in this region.     

Reconstructing prey selection,hunting strategy and seasonality of the early Holocene frozen site in the Siberian High Arctic: A case study on the Zhokhov site faunal remains,De Long Islands

The Zhokhov site is one of the northern most archaeological sites in the world and a very ancient vestige of occupation of high latitudes by people, indicating that this territory was settled as early as about 8000 years ago. Investigation of the site began in 1989–1990 and then continued in 2000–2005. Here we consider the taphonomy, spatial distribution, species and age- and sex-related composition of the faunal remains from the Zhokhov site. These data allow conclusions regarding the subsistence strategy practiced by Zhokhov inhabitants, including the hunting tactics. This was a peculiar adaptation model based on reindeer and polar bear hunting in a 2:1 ratio. Reindeer hunting was all-seasonal, whereas polar bears were hunted mostly in winters at their dens. Mortality data for reindeer and polar bears depict the yearly subsistence cycle. The Zhokhov site is found to be a base camp occupied year-round with modest summer activities, while wintertime is characterised by intense polar bear hunting. Most reindeer were hunted in the fall. Subsistence strategy of the Zhokhov hunters was largely facilitated by the fact that at the time of occupation Zhokhov Island was still part of the coastal Siberian plain margin.     

Mastering the Arctic marine environment: organizational practices of Pomor hunting expeditions to Svalbard (Spitsbergen) in the eighteenth century

We consider the foundations of the widely recognized reputation of the Pomors as experts in dealing with the severe and unpredictable marine environment of the White and Barents Seas. Our research focuses on the history of Russian exploitation of Spitsbergen. Though these kinds of activities occupied only 1% of maritime shipping in the Russian North, the history of exploitation of this Arctic archipelago is contextualized within the history of the Russian North and the lives of its people. Thus, it provides an informative model for general understanding of the methods and structures Pomors used to control the marine environment. The paper is based on newly discovered documents that allowed us to analyse the social and property status of organizers and participants in Spitsbergen hunting. We also consider practices linked to trip organization and supply. We argue that an understanding of Spitsbergen hunting management reveals the general principals of Pomor mastery of the Arctic environment. Flexibility and decentralization of economic activities permitted peasants of the Russian North to demonstrate stable and positive economic results under severe conditions. This could easily have been perceived as a special ability to live in the Arctic.     

Bone mineral content in medieval Greenland Norse

The bone mineral content (BMC) was measured using a special dual-photon scanner in 25 mandibles with normal macroscopic and radiographic bone structure. The mandibles were excavated from two Norse sites in Greenland, which date to the first and last part of the medieval Norse settlement period, respectively. The main purpose of this study was to investigate whether there was a change in BMC levels between the early and the late settlement period. The results showed no difference in male BMC between the early and the late site material. A statistically significant gender difference was found, analogous to most clinical and archaeological BMC studies. The sample did not allow testing for age-related, especially female postmenopausal-related, bone loss. It is known that Eskimos generally have a very low BMC, probably the effect of a high-protein marine diet. The lack of decrease in BMC levels for the Norse could indicate that they did not increase their overall protein intake over the 500-year settlement period. Other studies (both archaeological and anthropological) point to an increased reliance on marine foodstuffs throughout the settlement period. Thus, if the Norse increased their reliance on marine foodstuffs, they probably did not do so to the extent of an almost exclusive marine diet like that of the Eskimo. © 1997 John Wiley & Sons, Ltd.     

Monitoring Land‐Cover and Land‐Use Change in a Rapidly Urbanising Coastal Environment: the Maroochy and Mooloolah Rivers Catchments,Southeast Queensland, 1988–1997

Effective catchment monitoring requires an integrative approach for selecting remotely sensed data to monitor land‐cover change. Catchment analyses and monitoring requirements in the Maroochy and Mooloolah River Catchments (south‐east Queensland) were addressed by linking government and community information needs to appropriate scales of remotely sensed data and processing routines. A hybrid image classification approach applied to Landsat Thematic Mapper image data acquired in 1988 and 1997 provided catchment scale land‐cover maps (with accuracies of 73% and 84%). Land‐cover change maps derived from post‐classification comparison provided information on the spatial distribution and type of land‐cover changes between 1988–1997. Land‐cover change was dominated by activities related to urban residential expansion (suburban and rural residential) and agricultural expansion (sugar cane farms). Significant spatial variations in the geometric registration accuracy of the image data sets and classification accuracies produced moderate to low change detection accuracies. However, the framework and community consultation used for selecting and processing data ensured the resource managers and community groups were fully aware of the limitations of the land‐cover change mapping process and that the output images were suitable for incorporating in resource monitoring activities.     

Space syntax analysis of Central Inuit snow houses

Space syntax is a graph-based theory used by architects to examine how the spatial layout of buildings and cities influences the economic, social, and environmental outcomes of human movement and social interaction. Archaeologists have explored this concept by analyzing how social structure is reflected in the spatial configuration of public and domestic architecture. In this paper, space syntax is used to examine the spatial morphology of snow houses built by three Central Inuit groups in the Canadian Arctic, based on ethnohistoric and ethnographic accounts. The results of this study demonstrate that variation in family structure and the behavioral directives present in Inuit kinship systems are reflected in the spatial configurations of snow house architecture. This has important implications for understanding how architecture might be used to identify enduring and changing patterns of household and community organization in the archaeological record.     

Satellite image analysis of changes in glacier cover in Canada's northern Mackenzie Mountain Range (1987–2017)

The state of a group of glaciers in the northern Mackenzie Mountains across the Yukon‐Northwest Territories border was investigated over a period of three decades, using Landsat TM and OLI imagery from 1987, 1994, 1999, 2004, 2013, and 2017 to examine changes in glacier extents. A thresholded red/shortwave infrared band ratio image was used to delineate glacier boundaries. The total area of 74 glaciers in the study area decreased from 52.78 ± 1.32 km² in 1987 to 24.89 ± 0.62 km² in 2017, a loss of 27.89 ± 1.39 km² or 52.8 ± 2.6%, with a mean rate of reduction of 1.8% · a^?1. Smaller glaciers experienced larger relative changes in area. In this study, the rates of reduction are high compared to decreases reported for other glaciers in the region in the late 20^th century. Based on linear extrapolation of the trend in values of total glacier area, it is predicted—subject to uncertainties in how glaciers diminish in size and eventually disappear—that the study area could be free of visible glacier cover within three decades.