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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Diet of Paranthropus boisei in the early Pleistocene of East Africa
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Diet of Paranthropus boisei in the early Pleistocene of East Africa

机译：东非更新世初期的波旁人副食

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摘要

The East African hominin Paranthropus boisei was characterized by a suite of craniodental features that have been widely interpreted as adaptations to a diet that consisted of hard objects that required powerful peak masticatory loads. These morphological adaptations represent the culmination of an evolutionary trend that began in earlier taxa such as Australopithecus afarensis, and presumably facilitated utilization of open habitats in the Plio-Pleisto-cene. Here, we use stable isotopes to show that P. boisei had a diet that was dominated by C_4 biomass such as grasses or sedges. Its diet included more C_4 biomass than any other hominin studied to date, including its congener Paranthropus robustus from South Africa. These results, coupled with recent evidence from dental microwear, may indicate that the remarkable craniodental morphology of this taxon represents an adaptation for processing large quantities of low-quality vegetation rather than hard objects.
机译：东非人猿Boanthropus的特点是具有一系列颅齿特征，被广泛解释为对饮食的适应，该饮食由需要强烈咀嚼力的硬物组成。这些形态上的适应性代表了始于较早的分类群（如南方古猿Afarensis）的进化趋势的高潮，据推测这促进了上新世的开放栖息地的利用。在这里，我们使用稳定的同位素表明，博伊西假单胞菌的饮食以草或莎草等C_4生物量为主导。它的饮食中所含的C_4生物量比迄今研究的任何其他人豆素都多，包括其来自南非的同类动物强壮对虾。这些结果，再加上来自牙齿微磨损的最新证据，可能表明该分类单元的显着颅齿形态代表了对处理大量低质量植被而不是硬物的适应。

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    Thure E. Ceding; Emma Mbua; Francis M. Kirera; Fredrick Kyalo Manthi; Frederick E. Grine; Meave G. Leakey; Matt Sponheimer; Kevin T. Uno;

  • 作者单位

    Department of Geology and Geophysics, University of Utah, Salt Lake City, UT 84112-0111;

    National Museums of Kenya, P.O. Box 40658, Nairobi, Kenya;

    National Museums of Kenya, P.O. Box 40658, Nairobi, Kenya;

    National Museums of Kenya, P.O. Box 40658, Nairobi, Kenya;

    Department of Anthropology, Stony Brook University, Stony Brook, NY 11794-4364;

    National Museums of Kenya, P.O. Box 40658, Nairobi, Kenya ,Department of Anthropology, Stony Brook University, Stony Brook, NY 11794-4364,Turkana Basin Institute, P.O. Box 24926-00502, Nairobi, Kenya;

    Department of Anthropology, University of Colorado, Boulder, CO 80309-0233;

    Department of Geology and Geophysics, University of Utah, Salt Lake City, UT 84112-0111;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    C_4 photosynthesis; C_3 photosynthesis;

    机译：C_4光合作用;C_3光合作用;

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