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Recent Publications: Lanoë, Reuther Article in Science Advances

A study by lead author Carrin Halffman and (among others) alumni Joshua Reuther (Ph.D. 2013) and François Lanoë (Ph.D. 2017; Assistant Research Professor) was recently published in Science Advances. The abstract below; read about the research in this University of Alaska Fairbanks news release 

Abstract: The earliest Native Americans have often been portrayed as either megafaunal specialists or generalist foragers, but this debate cannot be resolved by studying the faunal record alone. Stable isotope analysis directly reveals the foods consumed by individuals. We present multi-tissue isotope analyses of two Ancient Beringian infants from the Upward Sun River site (USR), Alaska (~11,500 years ago). Models of fetal bone turnover combined with seasonally-sensitive taxa show that the carbon and nitrogen isotope composition of USR infant bone collagen reflects maternal diets over the summer. Using comparative faunal isotope data, we demonstrate that although terrestrial sources dominated maternal diets, salmon was also important, supported by carbon isotope analysis of essential amino acids and bone bioapatite. Tooth enamel samples indicate increased salmon use between spring and summer. Our results do not support either strictly megafaunal specialists or generalized foragers but indicate that Ancient Beringian diets were complex and seasonally structured. (Anthro News date: 09/11/2020)