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ARTICLES

Where the Pavement Ends: An Assessment of the Near Absence of Haliotis rufescens in the Archaeological Record on Alta California's North Coast

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Abstract

Red abalone (Haliotis rufescens) is a common constituent in coastal middens south of San Francisco Bay and was such an important part of the diet there that red abalone middens or pavements are the most common site type in some areas at various periods in prehistory. The record north of San Francisco Bay stands in stark contrast—abalone are all but absent even in rich shell midden deposits. We explore four possible explanations for the lack of red abalone in the record, such as return rate discrepancies, competition with sea otters (Enhydra lutris), a lack of boat-based foraging, and the draw of terrestrial resources. We conclude that a combination of factors limited the appeal of red abalone for north coast foragers, including the inadequacy of boats as a platform for diving, competition with sea otters and, most importantly, enhanced terrestrial returns—including anadromous fish runs on coastal rivers—in northern California compared to southern California.

Abalón rojo (Haliotis rufescens) es un componente común en los concheros costeros al sur de la Bahía de San Francisco, y era una parte tan importante de la dieta allí que los concheros de abulón rojo están el tipo de sitio más común en algunas zonas en distintos periodos de la prehistoria. El registro al norte de la Bahía de San Francisco está en marcado contraste – el abulón está casi ausente incluyendo en concheros ricos. Exploramos cuatro explicaciones posibles para la falta del abulón rojo en el registro incluyendo las discrepancias en la tasa de retorno, la competencia con las nutrias marinas (Enhydra lutris), una falta del forraje con barcos, y la atracción de los recursos terrestres. Concluimos que una combinación de factores limitaron la atracción del abalón rojo para los recolectores de la costa norte, incluyendo la insuficiencia de los barcos como plataformas para el buceo, la competencia con las nutrias marinas y, lo más importante, las ganancias mejorados con animales terrestres—incluyendo los peces anádromos en los ríos costeros—en el norte de California en comparación con el sur de California.

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