Matthew W. Betts

An Introduction to the Biocomplexity of Sanak Island, Western Gulf of Alaska

Abstract: The Sanak Biocomplexity Project is a transdisciplinary research effort focused on a small island archipelago 50 km south of the Alaska Peninsula in the western Gulf of Alaska. This team of archaeologists, terrestrial ecologists, social anthropologists, intertidal ecologists, geologists, oceanographers, paleoecologists, and modelers is seeking to understanding the role of the ancient, historic, and modern Aleut in the structure and functioning of local and regional ecosystems. Using techniques ranging from systematic surveys to stable isotope chemistry, long-term shifts in social dynamics and ecosystem structure are present in the context of changing climatic regimes and human impacts. This paper presents a summary of a range of our preliminary findings.

How Animals Create Human History: Relational Ecology and the Dorset–Polar Bear Connection

Abstract Carvings that represent polar bears (Ursus maritimus) are commonly found in Dorset Paleo-Eskimo archaeological sites across the eastern Arctic. Relational ecology, combined with Amerindian perspectivism, provides an integrated framework within which to comprehensively assess the connections between Dorset and polar bears. By considering the representational aspects of the objects, we reveal an ethology of polar bears encoded within the carvings’ various forms. Reconstructing the experiences and perceptions of Dorset as they routinely interacted with these creatures, and placing these interactions in socioeconomic, environmental, and historical context, permits us to decode a symbolic ecology inherent in the effigies. To the Dorset, these carvings were simultaneously tools and mnemonics (symbols). As tools, they were used to directly access the predatory and spiritual abilities of bears or, more prosaically, to teach and remind of the variety of proper hunting techniques available for capturing seals. As symbols, however, they were far more powerful, signaling how Dorset people conceptualized themselves and their place in the universe. Symbolic of an ice-edge way of life, the effigies expose the role that this special relationship with polar bears played in the creation of Dorset histories and identities.

The roles and impacts of human hunter-gatherers in North Pacific marine food webs

There is a nearly 10,000-year history of human presence in the western Gulf of Alaska, but little understanding of how human foragers integrated into and impacted ecosystems through their roles as hunter-gatherers. We present two highly resolved intertidal and nearshore food webs for the Sanak Archipelago in the eastern Aleutian Islands and use them to compare trophic roles of prehistoric humans to other species. We find that the native Aleut people played distinctive roles as super-generalist and highly-omnivorous consumers closely connected to other species. Although the human population was positioned to have strong effects, arrival and presence of Aleut people in the Sanak Archipelago does not appear associated with long-term extinctions. We simulated food web dynamics to explore to what degree introducing a species with trophic roles like those of an Aleut forager, and allowing for variable strong feeding to reflect use of hunting technology, is likely to trigger extinctions. Potential extinctions decreased when an invading omnivorous super-generalist consumer focused strong feeding on decreasing fractions of its possible resources. This study presents the first assessment of the structural roles of humans as consumers within complex ecological networks, and potential impacts of those roles and feeding behavior on associated extinctions.

Perspectivism, Mortuary Symbolism, and Human-Shark Relationships on the Maritime Peninsula

Abstract Shark teeth are commonly found in mortuary and ritual contexts throughout the Northeast. On the Maritime Peninsula, shark teeth have been identified in mortuary assemblages spanning the Late Archaic through to the Late Woodland periods (ca. 5000 B.P. to 950 B.P.). Beyond the Maritime Peninsula, shark teeth have been recovered from Woodland period contexts ranging from Chesapeake Bay to the Ohio River. Amerindian perspectivism, or cosmológical deixis, provides a framework for understanding the relationship between humans and animals in hunter-gatherer societies. To explore this relationship, we examine engagements between sharks and humans over a period of 5,000 years, within a socioeconomic perspective. We postulate that shark teeth in mortuary contexts were complex, entangled objects that were both mnemonics and instruments. All at the same time, shark teeth were (1) an emblem of a real creature with spectacular predatory abilities, (2) an icon of transformational and spiritual power, (3) a symbol of a society’s maritime way of life, and (4) a tool–a conduit through which a person could gain access to supernatural abilities. When shark teeth were exchanged, all of these properties may have been transferred, suggesting that reinforcing relationships between societies conducting the exchange was as important as gaining access to the supernatural powers of the teeth.

Seven Focal Economies for Six Focal Places: The Development of Economic Diversity in the Western Canadian Arctic

The Mackenzie River Delta is, by arctic standards, an area of unique ecological productivity and richness. Capitalizing on this resource abundance, Neoeskimo groups inhabiting the Mackenzie Delta region developed a diverse range of focal subsistence strategies, which evolved to support one of the most populous Inuit societies in the Canadian Arctic. By the historic period, the Mackenzie Inuit (the ancestors of the modern Inuvialuit) appear to have been segregated into at least seven distinct territorial groups. Economically, each group seems to have maintained a unique, and in most cases, focal, subsistence strategy, in part the product of the spatially heterogeneous nature of the resource aggregations in the area. In an effort to understand how this regional socioeconomic system developed, zooarchaeological data derived from 24 assemblages representing 19 sites are considered. The resulting analysis emphasizes the interaction between local resource aggregations and settlement patterns in the development of diversity in Mackenzie Inuit subsistence economies, and tracks how these economies phased in and out of a regional economic system in response to demographic, technological, and climatic changes over a period of approximately seven centuries.

Introduction: North American East Coast Shell Middens

Abstract Archaeological shell bearing deposits, or shell middens, are ubiquitous along the Atlantic Seaboard, and have been the focus of archaeological interest for more than a century. This volume presents recent research on shell-bearing deposits from the Gulf of St. Lawrence to Chesapeake Bay. The papers cover topics ranging from fundamental subsistence changes as reflected in archaeofaunas, to the role of select species in hunting practices and diets, to methodological issues of shell midden excavation and interpretation, to aspects of ideation and ontology as reflected in features and assemblages. A consistent theme among the papers is the issue of coastal erosion caused by sea-level rise and climate change. This looming crisis has made the comprehensive investigation of these deposits more important than ever before.

Archaeofaunal signatures of specialized bowhead whaling in the Western Canadian Arctic: a regional study

ABSTRACT Zooarchaeologists continue to experience difficulty defining the importance of bowhead (Balaen mysticetus) whaling in Neoeskimo coastal deposits. The large size of bowhead bones, combined with their use as structural elements in Neoeskimo architecture, creates a suite of taphonomic issues that tend to obscure their usefulness as a measure of relative abundance, and thus as an overall economic indicator. Here we present a regional approach that focuses on contrasts in relative taxonomic abundance between sites with diverse economic signatures, supported by related differences in element frequencies, site locations, features, artefact frequencies, and manufacturing detritus. Using this approach, a generalized picture of the relative importance of bowhead whales in Neoeskimo subsistence economies can be assembled. Such an analysis, applied to the archaeological record of the Mackenzie Inuit, or Siglit, reveals the role that bowhead whaling played in subsistence economies from the 15th to 19th centuries AD. Specifically, the archaeological record indicates that the prehistoric Qikiqtaryungmiut and Nuvugarmiut practiced specialized bowhead whaling at coastal promontories, though the seasonal scheduling and success rate of these hunts contrasted considerably.