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Diet of Paranthropus boisei in the early Pleistocene of East Africa

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

Proceedings of the National Academy of Sciences - PNAS, 2011-06, Vol.108 (23), p.9337-9341 [Periódico revisado por pares]

United States: National Academy of Sciences

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Título:
Diet of Paranthropus boisei in the early Pleistocene of East Africa
Autor: Cerling, Thure E ; Mbua, Emma ; Kirera, Francis M ; Manthi, Fredrick Kyalo ; Grine, Frederick E ; Leakey, Meave G ; Sponheimer, Matt ; Uno, Kevin T
Assuntos: Adaptation, Physiological ; Animals ; Australopithecus ; Biological Evolution ; Biological Sciences ; biomass ; Carbon isotopes ; Carbon Isotopes - analysis ; Cyperaceae ; Cyperus ; Diet ; Evolution & development ; Food ; Food Preferences ; Fossils ; Geological time ; grasses ; Habitats ; Hominidae ; Hominids ; Humans ; Isotopes ; Kenya ; Morphology ; Oxygen Isotopes - analysis ; Physical Sciences ; Poaceae ; Radiometric Dating - methods ; Sedges ; stable isotopes ; Taxa ; Teeth ; Tooth - anatomy & histology ; Tooth enamel ; vegetation
É parte de: Proceedings of the National Academy of Sciences - PNAS, 2011-06, Vol.108 (23), p.9337-9341
Notas: http://dx.doi.org/10.1073/pnas.1104627108
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content type line 23
Contributed by Thure E. Cerling, March 26, 2011 (sent for review February 27, 2011)
Author contributions: T.E.C., E.M., F.M.K., F.K.M., F.E.G., M.G.L., M.S., and K.T.U. designed research; T.E.C., E.M., F.M.K., F.K.M., F.E.G., M.G.L., M.S., and K.T.U. performed research; K.T.U. contributed new reagents/analytic tools; T.E.C., E.M., F.M.K., F.K.M., F.E.G., M.G.L., M.S., and K.T.U. analyzed data; and T.E.C., F.E.G., and M.S. wrote the paper.
Descrição: 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-Pleistocene. Here, we use stable isotopes to show that P. boisei had a diet that was dominated by Câ biomass such as grasses or sedges. Its diet included more Câ 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.
Editor: United States: National Academy of Sciences
Idioma: Inglês

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Diet of Paranthropus boisei in the early Pleistocene of East Africa

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

United States: National Academy of Sciences

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