Palaeoenvironmental modelling of d(13) C and d(15) N values in the North Atlantic Islands: understanding past marine resource use.
Palaeoenvironmental modelling of d(13) C and d(15) N values in the North Atlantic Islands: understanding past marine resource use.
复制标题
北大西洋群岛 d(13) C 和 d(15) N 值的古环境模型：了解过去的海洋资源利用。
DOI：
10.1002/rcm.6319
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Jones JR
中科院分区：
文献类型：
--
作者：
Jones JR
碳 (δ13C) 和氮 (δ15N) 分析已被广泛用于调查海洋食品在北大西洋群岛考古人群饮食中的重要性；然而，很少有动物研究可以帮助解释结果。 δ13C 和 δ15N 值的古环境模型对于确定稳定同位素值的变化是否是饮食变化的结果至关重要，而不是碳和氮的时间或地理波动的结果。研究动物的饮食行为可以深入了解过去的饲料和土地管理策略。方法对野生和家养物种进行详细采样以进行大量胶原蛋白分析，以表征外赫布里底群岛和奥克尼群岛 δ13C 和 δ15N 值的地理变化。对新石器时代到挪威时期的样本进行了分析，以评估 δ13C 和 δ15N 值的时间和地理变化，此外还确定了海洋食物对当地动物群饮食的贡献。 结果在新石器时代和铁器时代，外赫布里底群岛和奥克尼群岛之间观察到 δ15N 变化为 1‰。在挪威时期奥克尼群岛和外赫布里底群岛之间观察到 δ13C 值存在地理差异。 δ13C 和 δ15N 值的时间波动表明了外赫布里底群岛绵羊饲养方式的变化。来自外赫布里底群岛的猪标本证明了铁器时代消费海洋食物的证据。结论动物的饮食行为可以作为过去海洋资源重要性的重要指标。动物 δ13C 和 δ15N 值的地理和时间特征对于我们解释人类饮食行为至关重要。版权所有 © 2012 约翰·威利父子有限公司
RATIONALECarbon (δ13C) and nitrogen (δ15N) analysis has been extensively used to investigate the importance of marine foods in the diet of archaeological populations in the North Atlantic Islands; however, few faunal studies exist to aid the interpretation of results. Palaeoenvironmental modelling of δ13C and δ15N values is crucial in determining whether changes in the stable isotope values are a result of dietary change, rather than temporal or geographical fluctuations in carbon and nitrogen. Investigating faunal dietary behaviour can provide an insight into past foddering and land management strategies.METHODSDetailed sampling of wild and domestic species for bulk collagen analysis was undertaken in order to characterise geographical variations in δ13C and δ15N values in the Outer Hebrides and Orkney. Samples from the Neolithic to the Norse period were analysed to assess temporal and geographical variations in δ13C and δ15N values, in addition to determining the contribution of marine foods to the diet of local fauna.RESULTSA δ15N shift of 1‰ was observed between the Outer Hebrides and Orkney in the Neolithic and Iron Age. A geographical variation in δ13C values was observed in the Norse period between Orkney and the Outer Hebrides. Temporal fluctuations in δ13C and δ15N values demonstrate variations in foddering practices of sheep in the Outer Hebrides. Pig specimens from the Outer Hebrides demonstrated evidence of marine food consumption in the Iron Age.CONCLUSIONSFaunal dietary behaviour can act as a vital indicator of the importance of marine resources in the past. Characterisation of faunal δ13C and δ15N values geographically and temporally is crucial in our interpretation of human dietary behaviour. Copyright © 2012 John Wiley & Sons, Ltd.