气候变化领域集成服务门户(CCPortal): Collapse of the mammoth-steppe in central Yukon as revealed by ancient environmental DNA

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DOI	10.1038/s41467-021-27439-6
	Collapse of the mammoth-steppe in central Yukon as revealed by ancient environmental DNA
	Murchie T.J.; Monteath A.J.; Mahony M.E.; Long G.S.; Cocker S.; Sadoway T.; Karpinski E.; Zazula G.; MacPhee R.D.E.; Froese D.; Poinar H.N.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	The temporal and spatial coarseness of megafaunal fossil records complicates attempts to to disentangle the relative impacts of climate change, ecosystem restructuring, and human activities associated with the Late Quaternary extinctions. Advances in the extraction and identification of ancient DNA that was shed into the environment and preserved for millennia in sediment now provides a way to augment discontinuous palaeontological assemblages. Here, we present a 30,000-year sedimentary ancient DNA (sedaDNA) record derived from loessal permafrost silts in the Klondike region of Yukon, Canada. We observe a substantial turnover in ecosystem composition between 13,500 and 10,000 calendar years ago with the rise of woody shrubs and the disappearance of the mammoth-steppe (steppe-tundra) ecosystem. We also identify a lingering signal of Equus sp. (North American horse) and Mammuthus primigenius (woolly mammoth) at multiple sites persisting thousands of years after their supposed extinction from the fossil record. © 2021, The Author(s).
语种	英语
scopus关键词	climate change; DNA; DNA fingerprinting; extinction; fossil record; human activity; mammoth; permafrost; Quaternary; turnover; Canada; Klondike; Yukon Territory; Equus sp.; Mammuthus primigenius; ancient DNA; animal; Canada; climate change; ecosystem; Equidae; fossil; genetics; horse; human activities; mammoth; metagenome; plant; Yukon; Animals; Canada; Climate Change; DNA, Ancient; DNA, Environmental; Ecosystem; Equidae; Fossils; Horses; Human Activities; Mammoths; Metagenome; Plants; Yukon Territory
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251288
作者单位	McMaster Ancient DNA Centre, McMaster University, Hamilton, Canada; Department of Anthropology, McMaster University, Hamilton, Canada; Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Canada; School of Geography and Environmental Science, University of Southampton, Southampton, United Kingdom; Department of Biology, McMaster University, Hamilton, Canada; The Hospital for Sick Children, Toronto, Canada; Yukon Government, Palaeontology Program, Department of Tourism and Culture, Whitehorse, Canada; Collections and Research, Canadian Museum of Nature, Ottawa, Canada; Division of Vertebrate Zoology/Mammalogy, American Museum of Natural History, New York, United States; Department of Biochemistry, McMaster University, Hamilton, Canada; Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada; CIFAR Humans and the Microbiome Program, Toronto, Canada
推荐引用方式 GB/T 7714	Murchie T.J.,Monteath A.J.,Mahony M.E.,et al. Collapse of the mammoth-steppe in central Yukon as revealed by ancient environmental DNA[J],2021,12(1).
APA	Murchie T.J..,Monteath A.J..,Mahony M.E..,Long G.S..,Cocker S..,...&Poinar H.N..(2021).Collapse of the mammoth-steppe in central Yukon as revealed by ancient environmental DNA.Nature Communications,12(1).
MLA	Murchie T.J.,et al."Collapse of the mammoth-steppe in central Yukon as revealed by ancient environmental DNA".Nature Communications 12.1(2021).