Evidence map›Paper›PMID 25853557›Full record

ArticlePloS one2015

3D bite modeling and feeding mechanics of the largest living amphibian, the Chinese giant salamander Andrias davidianus (Amphibia:Urodela).

Josep Fortuny, Jordi Marcé-Nogué, Egon Heiss, Montserrat Sanchez, Lluis Gil, Àngel Galobart

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
5.1field-weighted citation impact, top 5% of its field
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

17 citing papers in PubMed, 56 citations in OpenAlex.

  1. The relationship between form and function of the carnivore mandible.Anatomical record (Hoboken, N.J. : 2007) · 2026
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  5. Middle Jurassic fossils document an early stage in salamander evolution.Proceedings of the National Academy of Sciences of the United States of America · 2022
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  7. The feeding system ofProceedings of the National Academy of Sciences of the United States of America · 2021
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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

6 authors at 3 institutions in 3 countries.

Josep FortunyInstitut Català de Paleontologia Miquel Crusafont, Sabadell, Spain; Universitat Politècnica de Catalunya-BarcelonaTech, Terrassa, Spain.
Jordi Marcé-NoguéInstitut Català de Paleontologia Miquel Crusafont, Sabadell, Spain; Universitat Politècnica de Catalunya-BarcelonaTech, Terrassa, Spain.
Egon HeissDepartment of Integrative Zoology, University of Vienna, Vienna, Austria; Institute of Systematic Zoology and Evolutionary Biology, Friedrich-Schiller-University Jena, Jena, Germany.
Montserrat SanchezUniversitat Politècnica de Catalunya-BarcelonaTech, Terrassa, Spain.
Lluis GilUniversitat Politècnica de Catalunya-BarcelonaTech, Terrassa, Spain.
Àngel GalobartInstitut Català de Paleontologia Miquel Crusafont, Sabadell, Spain.
Universitat Politècnica de Catalunya · ESInstitut Català de Paleontologia Miquel Crusafont · ESUniversity of Vienna · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biting is an integral feature of the feeding mechanism for aquatic and terrestrial salamanders to capture, fix or immobilize elusive or struggling prey. However, little information is available on how it works and the functional implications of this biting system in amphibians although such approaches might be essential to understand feeding systems performed by early tetrapods. Herein, the skull biomechanics of the Chinese giant salamander, Andrias davidianus is investigated using 3D finite element analysis. The results reveal that the prey contact position is crucial for the structural performance of the skull, which is probably related to the lack of a bony bridge between the posterior end of the maxilla and the anterior quadrato-squamosal region. Giant salamanders perform asymmetrical strikes. These strikes are unusual and specialized behavior but might indeed be beneficial in such sit-and-wait or ambush-predators to capture laterally approaching prey. However, once captured by an asymmetrical strike, large, elusive and struggling prey have to be brought to the anterior jaw region to be subdued by a strong bite. Given their basal position within extant salamanders and their "conservative" morphology, cryptobranchids may be useful models to reconstruct the feeding ecology and biomechanics of different members of early tetrapods and amphibians, with similar osteological and myological constraints.

Indexed as

Bite ForceFeeding BehaviorFinite Element AnalysisModels, AnatomicAnimalsCaudataEvolution, MolecularTomography, X-Ray Computed

Identifiers

PMID25853557
PMCPMC4390218
OpenAlexW2022036186

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.