气候变化领域集成服务门户(CCPortal): Thriving or surviving? The isotopic record of the Wrangel Island woolly mammoth population

CCPortal

DOI	10.1016/j.quascirev.2019.105884
	Thriving or surviving? The isotopic record of the Wrangel Island woolly mammoth population
	Arppe L.; Karhu J.A.; Vartanyan S.; Drucker D.G.; Etu-Sihvola H.; Bocherens H.
发表日期	2019
ISSN	0277-3791
卷号	222
英文摘要	The world's last population of woolly mammoths (Mammuthus primigenius) lived on Wrangel Island persisting well into the Holocene, going extinct at ca. 4000 cal BP. According to the frequency of radiocarbon dated mammoth remains from the island, the extinction appears fairly abrupt. This study investigates the ecology of the Wrangel Island mammoth population by means of carbon, nitrogen and sulfur isotope analyses. We report new isotope data on 77 radiocarbon dated mammoth specimens from Wrangel Island and Siberia, and evaluate them in relation to previously published isotope data for Pleistocene mammoths from Beringia and lower latitude Eurasia, and the other insular Holocene mammoth population from St. Paul Island. Contrary to prior suggestions of gradual habitat deterioration, the nitrogen isotope values of the Wrangel Island mammoths do not support a decline in forage quality/quantity, and are in fact very similar to their north Beringian forebears right to the end. However, compared to Siberian mammoths, those from Wrangel Island show a difference in their energy economy as judged by the carbon isotope values of structural carbonate, possibly representing a lower need of adaptive strategies for survival in extreme cold. Increased mid-Holocene weathering of rock formations in the central mountains is suggested by sulfur isotope values. Scenarios related to water quality problems stemming from increased weathering, and a possibility of a catastrophic starvation event as a cause of, or contributing factor in their demise are discussed. © 2019 The Authors
英文关键词	Beringia; Extinction; Holocene; Mammoths; Paleoclimatology; Paleoecology; Pleistocene; Radiogenic isotopes; Russia; Stable isotopes
语种	英语
scopus关键词	Deterioration; Ecology; Light extinction; Nitrogen; Population statistics; Sulfur; Water quality; Weathering; Beringia; Holocenes; Mammoths; Paleoclimatology; Paleoecology; Pleistocene; Radiogenic isotopes; Russia; Stable isotopes; Isotopes; Beringia; carbon isotope; Holocene; mammoth; nitrogen isotope; paleoclimate; paleoecology; Pleistocene; radiocarbon dating; radionuclide; stable isotope; Alaska; Eurasia; Magadan [Russian Federation]; Pribilof Islands; Russian Federation; Russian Federation; Saint Paul Island [Pribilof Islands]; Siberia; United States; Wrangel Island; Mammuthus primigenius
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/151749
作者单位	Finnish Museum of Natural History LUOMUS, University of Helsinki, P.O. Box 64 00014, Helsinki, Finland; Department of Geosciences and Geography, University of Helsinki, P.O.Box 64 00014, Helsinki, Finland; North-East Interdisciplinary Scientific Research Institute n.a. N.A. Shilo, Far East Branch, Russian Academy of Sciences (NEISRI FEB RAS), 16 Portovaya Str., Magadan, 685000, Russian Federation; Senckenberg Centre for Human Evolution and Palaeoenvironment (S-HEP), Sigwartstr. 10, Tübingen, 72076, Germany; Department of Geosciences, Biogeology, University of Tübingen, Hölderlinstr. 12, Tübingen, 72074, Germany
推荐引用方式 GB/T 7714	Arppe L.,Karhu J.A.,Vartanyan S.,et al. Thriving or surviving? The isotopic record of the Wrangel Island woolly mammoth population[J],2019,222.
APA	Arppe L.,Karhu J.A.,Vartanyan S.,Drucker D.G.,Etu-Sihvola H.,&Bocherens H..(2019).Thriving or surviving? The isotopic record of the Wrangel Island woolly mammoth population.Quaternary Science Reviews,222.
MLA	Arppe L.,et al."Thriving or surviving? The isotopic record of the Wrangel Island woolly mammoth population".Quaternary Science Reviews 222(2019).