DOI: 10.1016/j.palaeo.2014.10.026
论文题名: Ostrich expansion into India during the Late Pleistocene: Implications for continental dispersal corridors
作者: Blinkhorn J. ; Achyuthan H. ; Petraglia M.D.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2015
卷: 417 起始页码: 80
结束页码: 90
语种: 英语
英文关键词: Dispersal
; India
; Katoati
; Late Pleistocene
; Stable isotope
; Struthio
英文摘要: New evidence is presented for the earliest occurrence of ostrich (Struthio sp.) in India during the Late Pleistocene along with a synthesis on the evidence for ostrich populations in the subcontinent. Direct dating of ostrich eggshell using Accelerator Mass Spectrometry (AMS) radiocarbon methods on excavated samples from Katoati, Rajasthan, India is supported by Optically Stimulated Luminescence (OSL) dating of associated sediments to demonstrate the arrival of ostrich in India before 60. thousand. years ago (ka). In addition, the first stable isotope studies on ostrich eggshell from India have been conducted, yielding a new form of palaeoenvironmental proxy data for the Late Pleistocene. The geographic expansion of ostrich into India corresponds with the distribution of Sahel-like environments, bordering but not substantially colonising endemic Indian vegetation zones. The dispersal of ostrich into India marks a rare introduction of megafauna into the subcontinent during the Late Pleistocene, the longevity of which spans a period more than 40. ka. The timespan and range of this colonisation indicate the availability and exploitation of suitable habitats in India. The continental dispersal of ostrich into India during the Late Pleistocene offers useful insights into the debate surrounding the dispersal of modern humans, and contrasts with the hypothesized coastal movement of Homo sapiens into India. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69098
Appears in Collections: 过去全球变化的重建
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作者单位: UMR5199 PACEA, Université de Bordeaux, Avenues de Facultes, Cedex Pessac, France; Department of Geology, Anna University, Chennai, India; School of Archaeology, Research Laboratory for Archaeology and the History of Art, University of Oxford, Oxford, United Kingdom
Recommended Citation:
Blinkhorn J.,Achyuthan H.,Petraglia M.D.. Ostrich expansion into India during the Late Pleistocene: Implications for continental dispersal corridors[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2015-01-01,417