气候变化领域集成服务门户(CCPortal): Micromammal and macromammal stable isotopes from a MIS 6 fossil hyena den (Pinnacle Point site 30; south coast; South Africa) reveal differences in relative contribution of C4 grasses to local and regional palaeovegetation on the Palaeo-Agulhas Plain

CCPortal

DOI	10.1016/j.quascirev.2020.106201
	Micromammal and macromammal stable isotopes from a MIS 6 fossil hyena den (Pinnacle Point site 30; south coast; South Africa) reveal differences in relative contribution of C4 grasses to local and regional palaeovegetation on the Palaeo-Agulhas Plain
	Williams H.M.; Lee-Thorp J.A.; Matthews T.; Marean C.W.
发表日期	2020
ISSN	0277-3791
英文摘要	Proxy records dating to marine isotope stage 6 on the south coast of South Africa are rare. This study presents integrated micromammal and macromammal stable isotope palaeoenvironmental proxy data from one of the few MIS 6 fossil occurrences in the region, a fossil brown hyena (Parahyena brunnea) den, Pinnacle Point 30 (PP30). Two predators with significantly different foraging ranges aggregated the large and small mammal components of the PP30 fossil assemblage. The large mammal specimens were brought to PP30 by Parahyena brunnea with an expansive daily foraging radius that focused on the Palaeo-Agulhas Plain. The micromammal taxa were deposited at the site primarily by the spotted eagle owl, Bubo africanus, with a foraging radius of ∼3 km, and would have sampled the ecotone between the Palaeo-Agulhas Plain and the Cape coastal lowlands. The large and small mammal components of the PP30 assemblage thus sample palaeovegetation at different geographic scales; micromammal stable isotope data act as a proxy for local conditions, while macromammal data integrate information at a broader scale. Comparison of the stable carbon isotope data obtained from the micromammal and macromammal fossil specimens suggests that these two assemblage components intersected vegetation with differing proportions of C4 grasses. Micromammal δ13C proxy data indicates that, immediately local to the site, a C3 dominated vegetation was present, while the large mammal δ13C proxy data shows evidence of a vegetation community with a greater C4 grass component that likely occurred somewhat more distant from the site itself on the Palaeo-Agulhas Plain. © 2020 Elsevier Ltd
英文关键词	Africa; Cape floral region; Macromammal; Marine isotope stage 6; Micromammal; Palaeo-Agulhas plain; Pleistocene; Radiogenic isotopes; South Africa
语种	英语
scopus关键词	Isotopes; Vegetation; Africa; Cape floral region; Macromammal; Marine isotope stages; Micromammal; Palaeo-Agulhas plain; Pleistocene; Radiogenic isotopes; South Africa; Mammals
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/151648
作者单位	School of Human Evolution and Social Change, Arizona State University, PO Box 872402, Tempe, AZ 85287-2402, United States; Research Laboratory for Archaeology and the History of Art, School of Archaeology, University of Oxford, 1-2 South Parks Road, Oxford, OX1 3TG, United Kingdom; Centre of Excellence for Palaeontology, Iziko Museums of South Africa, 25 Queen Victoria Street, Cape Town, 8000, South Africa; African Centre for Coastal Palaeoscience, Nelson Mandela University, Port Elizabeth, Eastern Cape 6031, South Africa; Institute of Human Origins, School of Human Evolution and Social Change, Arizona State University, PO Box 872402, Tempe, AZ 85287-2402, United States
推荐引用方式 GB/T 7714	Williams H.M.,Lee-Thorp J.A.,Matthews T.,et al. Micromammal and macromammal stable isotopes from a MIS 6 fossil hyena den (Pinnacle Point site 30; south coast; South Africa) reveal differences in relative contribution of C4 grasses to local and regional palaeovegetation on the Palaeo-Agulhas Plain[J],2020.
APA	Williams H.M.,Lee-Thorp J.A.,Matthews T.,&Marean C.W..(2020).Micromammal and macromammal stable isotopes from a MIS 6 fossil hyena den (Pinnacle Point site 30; south coast; South Africa) reveal differences in relative contribution of C4 grasses to local and regional palaeovegetation on the Palaeo-Agulhas Plain.Quaternary Science Reviews.
MLA	Williams H.M.,et al."Micromammal and macromammal stable isotopes from a MIS 6 fossil hyena den (Pinnacle Point site 30; south coast; South Africa) reveal differences in relative contribution of C4 grasses to local and regional palaeovegetation on the Palaeo-Agulhas Plain".Quaternary Science Reviews (2020).