Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1073/pnas.1222559110 |
Diet of Australopithecus afarensis from the Pliocene Hadar Formation, Ethiopia | |
Wynn, Jonathan G.1; Sponheimer, Matt2; Kimbel, William H.3; Alemseged, Zeresenay4; Reed, Kaye3; Bedaso, Zelalem K.5; Wilson, Jessica N.1 | |
通讯作者 | Wynn, Jonathan G. |
来源期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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ISSN | 0027-8424 |
出版年 | 2013 |
卷号 | 110期号:26页码:10495-10500 |
英文摘要 | The enhanced dietary flexibility of early hominins to include consumption of C-4/crassulacean acid metabolism (CAM) foods (i.e., foods derived from grasses, sedges, and succulents common in tropical savannas and deserts) likely represents a significant ecological and behavioral distinction from both extant great apes and the last common ancestor that we shared with great apes. Here, we use stable carbon isotopic data from 20 samples of Australopithecus afarensis from Hadar and Dikika, Ethiopia (>3.4-2.9 Ma) to show that this species consumed a diet with significant C-4/CAM foods, differing from its putative ancestor Au. anamensis. Furthermore, there is no temporal trend in the amount of C-4/CAM food consumption over the age of the samples analyzed, and the amount of C-4/CAM food intake was highly variable, even within a single narrow stratigraphic interval. As such, Au. afarensis was a key participant in the C-4/CAM dietary expansion by early australopiths of the middle Pliocene. The middle Pliocene expansion of the eastern African australopith diet to include savanna-based foods represents a shift to use of plant food resources that were already abundant in hominin environments for at least 1 million y and sets the stage for dietary differentiation and niche specialization by subsequent hominin taxa. |
英文关键词 | stable isotope bioapatite carbon-13 paleodiet human evolution |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000321503700024 |
WOS关键词 | CARBON-ISOTOPE DATA ; DENTAL MICROWEAR ; STABLE-ISOTOPES ; MOLAR MICROWEAR ; TOOTH ENAMEL ; HOMININ ; ANAMENSIS ; DIKIKA ; AFAR ; STERKFONTEIN |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
来源机构 | Arizona State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/179499 |
作者单位 | 1.Univ S Florida, Dept Geol, Tampa, FL 33620 USA; 2.Univ Colorado, Dept Anthropol, Boulder, CO 80309 USA; 3.Arizona State Univ, Sch Human Evolut & Social Change, Inst Human Origins, Tempe, AZ 85287 USA; 4.Calif Acad Sci, Dept Anthropol, San Francisco, CA 94118 USA; 5.Johns Hopkins Univ, Baltimore, MD 21218 USA |
推荐引用方式 GB/T 7714 | Wynn, Jonathan G.,Sponheimer, Matt,Kimbel, William H.,et al. Diet of Australopithecus afarensis from the Pliocene Hadar Formation, Ethiopia[J]. Arizona State University,2013,110(26):10495-10500. |
APA | Wynn, Jonathan G..,Sponheimer, Matt.,Kimbel, William H..,Alemseged, Zeresenay.,Reed, Kaye.,...&Wilson, Jessica N..(2013).Diet of Australopithecus afarensis from the Pliocene Hadar Formation, Ethiopia.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,110(26),10495-10500. |
MLA | Wynn, Jonathan G.,et al."Diet of Australopithecus afarensis from the Pliocene Hadar Formation, Ethiopia".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 110.26(2013):10495-10500. |
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