Evidence map›Paper›PMID 26853550›Full record

ArticleNature communications2016

Mechanical evidence that Australopithecus sediba was limited in its ability to eat hard foods.

Justin A Ledogar, Amanda L Smith, Stefano Benazzi, Gerhard W Weber, Mark A Spencer, Keely B Carlson, Kieran P McNulty, Paul C Dechow, Ian R Grosse, Callum F Ross and 11 more

Abstract read
In one paragraph

Article in Nature communications, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed.

  1. Bite force production and the origin ofRoyal Society open science · 2025
    Article
  2. Dynamic finite element modelling of the macaque mandible during a complete mastication gape cycle.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Article
  3. Article
  4. Article
  5. Article
  6. Comparative biomechanics of theInterface focus · 2021
    Article
  7. Article
  8. Article
  9. Evolutionary biomechanics: hard tissues and soft evidence?Proceedings. Biological sciences · 2021
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

21 authors.

Justin A LedogarDepartment of Anthropology, University at Albany, 1400 Washington Avenue, Albany, New York 12222, USA.
Amanda L SmithDepartment of Anthropology, University at Albany, 1400 Washington Avenue, Albany, New York 12222, USA.
Stefano BenazziDepartment of Cultural Heritage, University of Bologna, Via degli Ariani 1, Ravenna 48121, Italy.
Gerhard W WeberDepartment of Anthropology, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria.
Mark A SpencerDepartment of Biology, South Mountain Community College, 7050 South 24th Street, Phoenix, Arizona 85042, USA.
Keely B CarlsonDepartment of Anthropology, Texas A&M University, College Station, Texas, 77843, USA.
Kieran P McNultyDepartment of Anthropology, University of Minnesota, 395 Hubert H. Humphrey Center, 301 19th Avenue South, Minneapolis, Minnesota 55421, USA.
Paul C DechowDepartment of Biomedical Sciences, Texas A&M University Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, Texas 75246, USA.
Ian R GrosseDepartment of Mechanical &Industrial Engineering, University of Massachusetts, 160 Governor's Drive, Amherst, Massachusetts 01003-2210, USA.
Callum F RossDepartment of Organismal Biology &Anatomy, University of Chicago, 1027 East 57th Street, Chicago, Illinois 60637, USA.
Brian G RichmondDepartment of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany.
Barth W WrightDepartment of Anatomy, Kansas City University of Medicine and Biosciences, 1750 Independence Avenue, Kansas City, Missouri 64106-1453, USA.
Qian WangDepartment of Biomedical Sciences, Texas A&M University Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, Texas 75246, USA.
Craig ByronDepartment of Biology, Mercer University, 1400 Coleman Avenue, Macon, Georgia 31207, USA.
Kristian J CarlsonEvolutionary Studies Institute, University of the Witwatersrand, Palaeosciences Centre, Private Bag 3, Wits 2050, South Africa.
Darryl J de RuiterDepartment of Anthropology, Texas A&M University, College Station, Texas, 77843, USA.
Lee R BergerEvolutionary Studies Institute, University of the Witwatersrand, Palaeosciences Centre, Private Bag 3, Wits 2050, South Africa.
Kelli TamvadaDepartment of Anthropology, University at Albany, 1400 Washington Avenue, Albany, New York 12222, USA.
Leslie C PryorDepartment of Biomedical Sciences, Texas A&M University Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, Texas 75246, USA.
Michael A BerthaumeDepartment of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany.
David S StraitDepartment of Anthropology, University at Albany, 1400 Washington Avenue, Albany, New York 12222, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Australopithecus sediba has been hypothesized to be a close relative of the genus Homo. Here we show that MH1, the type specimen of A. sediba, was not optimized to produce high molar bite force and appears to have been limited in its ability to consume foods that were mechanically challenging to eat. Dental microwear data have previously been interpreted as indicating that A. sediba consumed hard foods, so our findings illustrate that mechanical data are essential if one aims to reconstruct a relatively complete picture of feeding adaptations in extinct hominins. An implication of our study is that the key to understanding the origin of Homo lies in understanding how environmental changes disrupted gracile australopith niches. Resulting selection pressures led to changes in diet and dietary adaption that set the stage for the emergence of our genus.

Indexed as

Bite ForceComputer SimulationDietHominidaeTooth WearAnimalsFoodFossilsJawMolarPan troglodytes

Identifiers

PMID26853550
PMCPMC4748115

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.