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DOI	10.1016/j.quascirev.2020.106370
	Human population dynamics in relation to Holocene climate variability in the North American Arctic and Subarctic
	Briere M.D.; Gajewski K.
发表日期	2020
ISSN	0277-3791
卷号	240
英文摘要	Human paleodemographic changes were related to environmental fluctuations for the North American Arctic and boreal region, including Greenland. Using the frequency of archaeological radiocarbon dates as a proxy for population size, past changes in population were estimated and quantitatively examined in relation to reconstructions of temperature and sea ice conditions. This analysis was conducted across three spatial scales in order to better identify potential climate impacts on population size: the entire area, four major cultural-environmental regions and sixteen sub-regions. The timing of initial settlement differed by region, and population size fluctuated through time, but there was nevertheless an overall, accelerating increase in most areas. There was a high correspondence between millennial and centennial-scale climate variability and paleodemographic changes across the region, with population size generally increasing during warmer periods and decreasing during cooling episodes. Late Holocene cooling (neoglaciation) triggered a nearly-synchronous population decline across the entire region at 3.9 ka, a time when significant societal disruptions have been identified around the world, and are here shown in the Arctic. Decreasing temperatures and increased sea ice coverage also influenced large-scale migration patterns of Paleo-Inuit peoples as well as their cultural evolution. The growth of Paleo-Inuit populations after 3 ka during continued climate cooling is consistent with archaeological evidence suggesting Paleo-Inuit technological change enabled adaptations to increased sea ice. © 2020 Elsevier Ltd
英文关键词	4.2 ka; Archaeology; Data analysis; Greenland; Holocene; Neoglaciation; North America; Paleoclimatology; Paleodemography; Paleoecology
语种	英语
scopus关键词	Population dynamics; Population statistics; Sea ice; Climate variability; Cultural evolution; Environmental fluctuations; Holocene climate variability; Initial settlement; Migration patterns; Population decline; Technological change; Climate change; archaeological evidence; climate effect; climate variation; cooling; Holocene; ice cover; population decline; population dynamics; population size; radiocarbon dating; sea ice; subarctic region; Arctic; Greenland; North America
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/151435
作者单位	Laboratory for Paleoclimatology and Climatology, Department of Geography, Environment and Geomatics, University of Ottawa, Ottawa, ON K1N 6N5, Canada
推荐引用方式 GB/T 7714	Briere M.D.,Gajewski K.. Human population dynamics in relation to Holocene climate variability in the North American Arctic and Subarctic[J],2020,240.
APA	Briere M.D.,&Gajewski K..(2020).Human population dynamics in relation to Holocene climate variability in the North American Arctic and Subarctic.Quaternary Science Reviews,240.
MLA	Briere M.D.,et al."Human population dynamics in relation to Holocene climate variability in the North American Arctic and Subarctic".Quaternary Science Reviews 240(2020).