The Chronology and Ecology of Postglacial Colonization of the Americas

美洲冰河后殖民的年代学和生态学

• 批准号: 9307474
• 负责人: R. Dale Guthrie
• 金额: $ 4.99万
• 依托单位: University of Alaska Fairbanks Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-07-15 至 1996-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9307474&HistoricalAwards=false
• 关键词: Chronology; Ecology; Postglacial; Colonization; Americas

Human colonization of the Americas has been an important and controversial issue. This is particularly true with regard to the Clovis expansion shortly before 11,000 years ago. New dates suggest that one large mammal, the moose, followed the same route as humans from Siberia into Alaska. Since human bones have never been found in either region from this time period, the presence of large numbers of moose bones offers an opportunity to analyze the timing and ecological limits of these co-travellers. Sixty radiocarbon dates from northeastern Siberia, Alaska and the Yukon will provide an indirect indicator of the extent of the woodland environments and human/moose co-expansion into the New World.

美洲的人类殖民一直是一个重要而有争议的问题。对于11,000年前的克洛维斯扩张来说，情况尤其如此。新的日期表明，一种大型哺乳动物--驼鹿--从西伯利亚沿着与人类相同的路线进入阿拉斯加。由于从这段时间以来，这两个地区都没有发现人骨，因此大量驼鹿骨骼的存在为分析这些同行者的时间和生态限制提供了机会。来自西伯利亚东北部、阿拉斯加和育空地区的60个放射性碳年代将间接显示林地环境的范围和人类/驼鹿共同扩张到新大陆的程度。