Further Investigations into Aleut Subsistence: Analysis of Bone Apatite for Carbon and Oxygen, Bone Collagen for Sulfur and Individual Amino Acid Isotope Chemistry

对阿留申生存的进一步调查：骨磷灰石的碳和氧分析、骨胶原的硫分析以及单个氨基酸同位素化学分析

• 批准号: 1104874
• 负责人: Joan Coltrain
• 金额: $ 15.57万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-15 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1104874&HistoricalAwards=false
• 关键词: Further; Investigations; into; Aleut; Subsistence

The proposed project is a follow-up and expansion of preious research using stable isotope analysis and paleo-DNA to discuss the population history from four locations, the Chaluka midden site, Shiprock, and Kagamil caves, in the Eastern Aleutians, using samples from human and non-human faunal remains. The original project addressed hypotheses concerning the biological difference between ?Paleo? and ?Neo-Aleuts,? originally defined using craniometrics and cranial morphology and concluded that the differences did not reflect wholesale population replacement as had previously been hypothesized. The results from Coltrain?s previous analysis suggested that the historic populations in different localities differentially used terrestrial and marine subsistence resources. This project would expand the suite of stable isotopes, specifically sulfur to separate food taxa, carbon isotopes from bone apatite, oxygen isotopes as a proxy for temperature levels, and compound-specific nitrogen to separate specific amino acids. Analysis of these various isotopes would allow the researcher to more closely identify the diets of the individuals represented in the historic populations and provide more specific evidence for a separation of diet between the same population, rather than the skeletal sample representing two separate populations as previously thought.

拟议的项目是先前研究的后续和扩展，使用稳定同位素分析和古DNA，讨论来自四个地点的人口历史，在阿留申群岛东部的Chaluka midden遗址，Shiprock和Kagamil洞穴，使用人类和非人类动物遗骸的样本。 最初的项目涉及的假设之间的生物差异？旧石器时代？然后呢？新阿留申人？最初使用颅骨测量学和颅骨形态学定义，并得出结论，差异并不反映以前假设的大规模人口更替。 科尔特雷恩的结果？的先前的分析表明，不同地点的历史人口对陆地和海洋生存资源的利用存在差异。 该项目将扩展稳定同位素套件，特别是硫，以分离食物分类群，碳同位素与骨磷灰石，氧同位素作为温度水平的代表，以及化合物特异性氮，以分离特定的氨基酸。 对这些不同同位素的分析将使研究人员能够更密切地识别历史种群中所代表的个体的饮食，并为同一种群之间的饮食分离提供更具体的证据，而不是像以前认为的那样代表两个独立种群的骨骼样本。