Leftovers:The presence of manufacture-derived aquatic lipids in Alaskan Pottery

Lipids preserved within the walls of ancient pottery vessels are routinely analysed to reveal their original contents. The provenience of aquatic lipids in pottery is generally connected to vessel function (e.g., for cooking or storing fish, shellfish and aquatic mammals). However, ethnographic reports from early historic Alaska mention the use of aquatic oils for waterproofing low-fired pottery. Results of lipid residue studies on Alaskan pottery reflect an exclusive function of pottery to process aquatic resources. However, can one be sure these residues are the product of vessel function and not a remnant of the manufacturing process? The study presents the results of an experiment where the preservation of aquatic lipids during the firing process at different temperatures was measured. It was found that nearly all lipids were removed at firing temperatures of ≥ 400°C. Petrographic analysis of Alaskan pottery samples indicates that firing temperatures were generally &gt; 550°C but &lt; 800°C. The contribution of pre-firing manufacture-derived lipids to samples fired at these temperatures may be regarded as negligible. While the possible presence of aquatic lipids from post-firing surface treatments cannot be excluded, such treatments appear unnecessary for well-fired pottery.</p

Subsistence and Food Sharing in Northern Siberia: Social and Nutritional Ecology of the Dolgan and the Nganasan

Traditional foraging activities and extensive food sharing are critical to the contemporary nutritional well-being of Dolgan and Nganasan people in the Taimyr Region, Russia. Despite recent economic transformations geared toward free-market capitalism in the post-socialist era, since 1991, a native communal resource-management regime has developed. This article outlines the social and nutritional significance of subsistence and food sharing within a remote indigenous community in Arctic Siberia. Empirical data on procurement processes and relationships, along with data on food distributions and rationales, are discussed. These data are relevant to questions about food sharing and its significance in hunting-and-gathering economies and the evolution of human sociality