气候变化领域集成服务门户(CCPortal): A detailed life history of a pleistocene steppe bison (Bison priscus) skeleton unearthed in Arctic Alaska

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DOI	10.1016/j.quascirev.2020.106578
	A detailed life history of a pleistocene steppe bison (Bison priscus) skeleton unearthed in Arctic Alaska
	Funck J.; Heintzman P.D.; Murray G.G.R.; Shapiro B.; McKinney H.; Huchet J.-B.; Bigelow N.; Druckenmiller P.; Wooller M.J.
发表日期	2020
ISSN	0277-3791
卷号	249
英文摘要	Detailed paleoecological evidence from Arctic Alaska's past megafauna can help reconstruct paleoenvironmental conditions and can illustrate ecological adaptation to varying environments. We examined a rare, largely articulated and almost complete skeleton of a steppe bison (Bison priscus) recently unearthed in Northern Alaska. We used a multi-proxy paleoecological approach to reconstruct the past ecology of an individual representing a key ancient taxon. Radiocarbon dating of horn keratin revealed that the specimen has a finite radiocarbon age ∼46,000 ± 1000 cal yr BP, very close to the limit of radiocarbon dating. We also employed Bayesian age modeling of the mitochondrial genome, which estimated an age of ∼33,000–87,000 cal yr BP. Our taphonomic investigations show that the bison was scavenged post-mortem and infested by blowflies before burial. Stable carbon and oxygen isotope (δ13C and δ15N) analyses of sequentially sampled horn keratin reveal a seasonal cycle; furthermore, high δ15N values during its first few years of life are consistent with patterns observed in modern bison that undertook dispersal. We compared sequential analyses of tooth enamel for strontium isotope ratios (87Sr/86Sr) to a spatial model of 87Sr/86Sr values providing evidence for dispersal across the landscape. Synthesis of the paleoecological findings indicates the specimen lived during interstadial conditions. Our multi-proxy, paleoecological approach, combining light and heavy isotope ratios along with genetic information, adds to the broader understanding of ancient bison ecology during the Late Pleistocene, indicating that ancient bison adopted different degrees of paleo-mobility according to the prevailing paleoecological conditions and climate. © 2020 Elsevier Ltd
英文关键词	Beringia; Carbon; Nitrogen; Oxygen; Paleoecology; Quaternary; Stable isotopes; Steppe bison; Strontium
语种	英语
scopus关键词	Genes; Isotopes; Keratin; Musculoskeletal system; Tooth enamel; Genetic information; Late Pleistocene; Mitochondrial genomes; Radiocarbon age; Radiocarbon dating; Sequential analysis; Spatial modeling; Strontium isotopes; Ecology; adaptation; carbon isotope; interstadial; life history; oxygen isotope; paleoecology; paleoenvironment; Pleistocene; proxy climate record; radiocarbon dating; reconstruction; skeleton; ungulate; Alaska; United States; Bison; Bison antiquus; Bison priscus; Calliphoridae
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/151247
作者单位	Alaska Stable Isotope Facility, Water and Environmental Research Center, Institute of Northern Engineering, University of Alaska Fairbanks, Fairbanks, AK 99775, United States; Department of Geosciences, University of Alaska Fairbanks, Fairbanks, AK 99775, United States; Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA 95064, United States; The Arctic University Museum of Norway, UiT - the Arctic University of Norway, Tromsø, NO-9037, Norway; Department of Veterinary Medicine, University of Cambridge, Cambridge, CB3 0ES, United Kingdom; Howard Hughes Medical Institute, University of California Santa Cruz, Santa Cruz, CA 95064, United States; Department of Anthropology, University of Alaska Fairbanks, Fairbanks, AK 99775, United States; Muséum National d'Histoire Naturelle, Institut de Systématique, Evolution, Biodiversité (ISYEB), Unit Mixte de Recherche 7205, CP50, Entomologie, 45, Rue Buffon, Paris, F-75005, France; Alaska Quaternary Center, Univers...
推荐引用方式 GB/T 7714	Funck J.,Heintzman P.D.,Murray G.G.R.,et al. A detailed life history of a pleistocene steppe bison (Bison priscus) skeleton unearthed in Arctic Alaska[J],2020,249.
APA	Funck J..,Heintzman P.D..,Murray G.G.R..,Shapiro B..,McKinney H..,...&Wooller M.J..(2020).A detailed life history of a pleistocene steppe bison (Bison priscus) skeleton unearthed in Arctic Alaska.Quaternary Science Reviews,249.
MLA	Funck J.,et al."A detailed life history of a pleistocene steppe bison (Bison priscus) skeleton unearthed in Arctic Alaska".Quaternary Science Reviews 249(2020).