A comparison of using bulk and incremental isotopic analyses to establish weaning practices in the past

C. King, A. Millard, D. Gröcke, V. Standen, B. Arriaza, S. Halcrow
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引用次数: 36

Abstract

ABSTRACT The use of incremental carbon and nitrogen isotopic analysis is gaining momentum as a way of establishing infant feeding practices in the past. Here we examine the differences in information gleaned through incremental isotopic techniques applied to individuals, relative to more commonly-used bulk isotopic sampling of a cross-section of a population. We use bulk sampling methods, which use bone collagen isotope values from multiple individuals, to construct Bayesian weaning curves for our samples. We then compare these results to individual weaning times established through incremental isotopic analysis of single deciduous teeth. Our results highlight that in contexts with high adult dietary variation it may not be possible to interpret weaning behaviour using cross-sectional techniques, and incremental isotopic analysis may be the only way of interpreting weaning behaviours. Our findings also suggest that cross-sectional analyses are the most useful way of creating population-scale interpretations of weaning behaviour within a sample. Incremental techniques, however, are necessary if we want to tell individual weaning stories and investigate the variation in infant-feeding present within the past.
比较使用散装和增量同位素分析,以建立断奶实践在过去
在过去,使用增量碳和氮同位素分析作为建立婴儿喂养实践的一种方式正在获得动力。在这里,我们研究了通过应用于个体的增量同位素技术收集到的信息的差异,相对于更常用的种群横截面的散装同位素采样。我们使用大量采样方法,使用来自多个个体的骨胶原同位素值,为我们的样本构建贝叶斯断奶曲线。然后,我们将这些结果与通过单个乳牙的增量同位素分析建立的个体断奶时间进行比较。我们的研究结果强调,在成人饮食变化较大的情况下,使用横断面技术解释断奶行为可能是不可能的,增量同位素分析可能是解释断奶行为的唯一方法。我们的研究结果还表明,横截面分析是在样本中创建断奶行为的人口规模解释的最有用的方法。然而,如果我们想要讲述个体断奶的故事并调查过去婴儿喂养的变化,增量技术是必要的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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