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Regional Variability in Stable Isotope Food-Web Baselines and Sex-Based Differences in Diet: An Example from Early Agriculturists in Southeastern Utah

Author(s): Michael D. Lewis ; Joan Coltrain ; R. E. Burrillo

Year: 2017

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Summary

This paper provides an isotope-ecology context for Cedar Mesa, Utah by presenting isotope data on over 400 modern botanical and archaeo-faunal specimens from the area. While carbon data fit with regional expectations, nitrogen isotope ratios throughout the Cedar Mesa food-web show depletion in 15N relative to other ecosystems in the intermountain west--consistent with nitrogen inputs from cyptobiotic soil crusts. In light of this localized isotope baseline, we reassess previously published isotope studies of Basketmaker II (BMII) burials by comparing modeled whole-diet isotope ratios with the feasible diet polygon (e.g. convex hull) defined by local resources. Implications for translating sex-based differences in BMII bone chemistry into engendered subsistence strategies are also discussed.


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Regional Variability in Stable Isotope Food-Web Baselines and Sex-Based Differences in Diet: An Example from Early Agriculturists in Southeastern Utah. Michael D. Lewis, Joan Coltrain, R. E. Burrillo. Presented at The 81st Annual Meeting of the Society for American Archaeology, Vancouver, British Columbia. 2017 ( tDAR id: 428933)


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Spatial Coverage

min long: -115.532; min lat: 30.676 ; max long: -102.349; max lat: 42.033 ;

Record Identifiers

Abstract Id(s): 16371

Arizona State University The Andrew W. Mellon Foundation National Science Foundation National Endowment for the Humanities Society for American Archaeology Archaeological Institute of America