Evidence map›Paper›PMID 29192279›Full record

ArticleScientific reports2017

Self-righting potential and the evolution of shell shape in Galápagos tortoises.

Ylenia Chiari, Arie van der Meijden, Adalgisa Caccone, Julien Claude, Benjamin Gilles

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
9.5field-weighted citation impact, top 3% 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

8 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Symmetry-Breaking Stabilities in Carapace Curvature onAnimals : an open access journal from MDPI · 2022
    Article
  3. Article
  4. Flat on its back: the impact of substrate on righting methods of the brown marmorated stink bug, Halyomorpha halys.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2021
    Article
  5. Article
  6. The effect of change in mass distribution due to defensive posture on gait in fat-tailed scorpions.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2021
    Article
  7. Article
  8. 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

5 authors at 4 institutions in 3 countries.

Ylenia ChiariUniversity of South Alabama, Department of Biology, Mobile, AL, 36688, USA. yleniachiari@southalabama.edu.ORCID 0000-0003-2338-8602
Arie van der MeijdenCIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos da Universidade do Porto, Campus Agrário de Vairão, 4485-661, Vairão, Portugal.
Adalgisa CacconeDepartment of Ecology and Evolutionary Biology, Yale University, New Haven, CT, 06520, USA.
Julien ClaudeInstitut des Sciences de l'Evolution, CNRS-UMR n° 5554, CC 064, Université de Montpellier, 2, Place Eugène Bataillon, 34095, Montpellier, cedex 5, France.
Benjamin GillesLaboratoire d'Informatique, de Robotique et de Microélectronique de Montpellier, CNRS-UMR n° 5506, CC477, Université de Montpellier, 161 rue Ada, 34095, Montpellier, Cedex 5, France.
Centre National de la Recherche Scientifique · FRUniversidade do Porto · PTUniversity of South Alabama · USYale University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Self-righting, the capacity of an animal to self-turn after falling on its back, is a fitness-related trait. Delayed self-righting can result in loss of mating opportunities or death. Traits involved in self-righting may therefore be under selection. Galápagos giant tortoises have two main shell morphologies - saddleback and domed - that have been proposed to be adaptive. The more sloped shape on the sides of the shell and the longer extension of neck and legs of the saddlebacks could have evolved to optimize self-righting. The drier environments with more uneven surfaces where the saddleback tortoises occur increases their risk to fall on their back while walking. The ability to fast overturn could reduce the danger of dying. To test this hypothesis, we used 3D shell reconstructions of 89 Galápagos giant tortoises from three domed and two saddleback species to compare self-righting potential of the two shell morphotypes. Our results indicate that saddleback shells require higher energy input to self-right than domed ones. This suggests that several traits associated with the saddleback shell morphology could have evolved to facilitate self-righting. Studying the functional performances of fitness-related traits, as in this work, could provide important insight into the adaptive value of traits.

Indexed as

Biological EvolutionAnimalsAnimal ShellsBiomechanical PhenomenaFemaleMaleMovementTurtles

Identifiers

PMID29192279
PMCPMC5709378
OpenAlexW2769241767

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.