气候变化领域集成服务门户(CCPortal): Evidence of Ice Age humans in eastern Beringia suggests early migration to North America

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DOI	10.1016/j.quascirev.2018.12.003
	Evidence of Ice Age humans in eastern Beringia suggests early migration to North America
	Vachula R.S.; Huang Y.; Longo W.M.; Dee S.G.; Daniels W.C.; Russell J.M.
发表日期	2019
ISSN	0277-3791
起始页码	35
结束页码	44
卷号	205
英文摘要	Our understanding of the timing and pathway of human arrival to the Americas remains an important and polarizing topic of debate in archaeology and anthropology. Traditional consensus, supported by archaeological and paleoenvironmental data, favors a ‘swift peopling’ of the Americas from Asia via the Bering Land Bridge during the last Glacial termination. More recent genetic data and archaeological finds have challenged this view, proposing the ‘Beringian standstill hypothesis’ (BSH), wherein a population of proto-Americans migrated from Asia during, or even prior to the Last Glacial Maximum (LGM) and lived in Beringia for thousands of years before their eventual spread across the American continents. Using a sediment archive from Lake E5 (68.641667° N, 149.457706° W), located on Alaska's North Slope, we present new data supporting the BSH and shedding new light on the environmental impact of these early American populations. Fecal biomarkers support human presence in the environs of the lake, and our data demonstrate elevated biomass burning in this region during the last Glacial. Elevated burning defies the expectation that natural fires would be less frequent in the Arctic during the last Glacial, thereby suggesting human ignition as the likely culprit. Our data shed new light on the pathway and timing of human migration to the Americas and demonstrate the possibility of the sustainable coexistence of humans and the Ice Age megafauna in Beringia prior to their extinction. © 2018 Elsevier Ltd
英文关键词	Beringia; Charcoal; Fecal sterols; Last Glacial; Paleofire; Polycyclic aromatic hydrocarbons (PAHs)
语种	英语
scopus关键词	Charcoal; Environmental impact; Lakes; Polycyclic aromatic hydrocarbons; Population statistics; Beringia; Fecal sterols; Last glacial; Paleofire; Polycyclic aromatic hydrocarbons (PAHS); Glacial geology; anthropology; archaeology; Beringia; charcoal; coexistence; environmental impact; Last Glacial; Last Glacial Maximum; PAH; paleoenvironment; Pleistocene; sterol; Alaska; Asia; North Slope; United States
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/152045
作者单位	Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, United States; Institute at Brown for Environment and Society, Brown University, Providence, RI 02912, United States; Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, United States; Department of Earth, Environmental, and Planetary Sciences, Rice University, Houston, TX 77005, United States; The Marine Biological Laboratory, Woods Hole, MA 02543, United States; Department of Geosciences, University of Massachusetts Amherst, Amherst, MA 01003, United States
推荐引用方式 GB/T 7714	Vachula R.S.,Huang Y.,Longo W.M.,et al. Evidence of Ice Age humans in eastern Beringia suggests early migration to North America[J],2019,205.
APA	Vachula R.S.,Huang Y.,Longo W.M.,Dee S.G.,Daniels W.C.,&Russell J.M..(2019).Evidence of Ice Age humans in eastern Beringia suggests early migration to North America.Quaternary Science Reviews,205.
MLA	Vachula R.S.,et al."Evidence of Ice Age humans in eastern Beringia suggests early migration to North America".Quaternary Science Reviews 205(2019).