Evidence map›Paper›PMID 23342082›Full record

ArticlePloS one2013

Middle ear cavity morphology is consistent with an aquatic origin for testudines.

Katie L Willis, Jakob Christensen-Dalsgaard, Darlene R Ketten, Catherine E Carr

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
6.1field-weighted citation impact, top 4% 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

14 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
  2. Auditory brainstem responses in the red-eared slider Trachemys scripta elegans (Testudoformes: Emydidae) reveal sexually dimorphic hearing sensitivity.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2019
    Article
  3. Article
  4. Article
  5. Article
  6. Major evolutionary transitions and innovations: the tympanic middle ear.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017
    Review
  7. Article
  8. Internally coupled ears in living mammals.Biological cybernetics · 2016
    Article
  9. Article
  10. Sound localization in the alligator.Hearing research · 2015
    Review
  11. Amphibious auditory evoked potentials in four North American Testudines genera spanning the aquatic-terrestrial spectrum.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2015
    Article
  12. Article
  13. Article
  14. 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

4 authors at 3 institutions in 2 countries.

Katie L WillisDepartment of Biology, University of Maryland, College Park, Maryland, United States of America. kwillis@umd.edu
Jakob Christensen-Dalsgaard
Darlene R Ketten
Catherine E Carr
University of Maryland, College Park · USUniversity of Southern Denmark · DKWoods Hole Oceanographic Institution · US

Funding

COMPARATIVE AND EVOLUTIONARY BIOLOGY OF HEARINGT32DC000046 · NIDCD · UNIV OF MARYLAND, COLLEGE PARK · PI Catherine Emily Carr, Matthew J. Goupell · 1994 to 2026
$7.5M
CELLULAR MECHANISMS UNDERLYING SOUND LOCALIZATIONR01DC000436 · NIDCD · UNIV OF MARYLAND, COLLEGE PARK · PI CARR, CATHERINE EMILY · 1994 to 2017
$6.1M
THE ROLE OF INHIBITION IN THE AUDITORY BRAINSTEMF32DC000466 · NIDCD · UNIVERSITY OF WASHINGTON · PI BURGER, R. MICHAEL · 2001 to 2003
$118k
CELLULAR MECHANISMS UNDERLYING SOUND LOCALIZATIONR29DC000436 · NIDCD · UNIVERSITY OF ROCHESTER · PI CARR, CATHERINE EMILY · 1989 to 1992
–
NIDCD NIH HHS DC00436NIDCD NIH HHS F32 DC000466NIDCD NIH HHS P30 DC0466NIDCD NIH HHS R01 DC000436NIDCD NIH HHS T32 DC000046
6 · The paper itself

Abstract

The position of testudines in vertebrate phylogeny is being re-evaluated. At present, testudine morphological and molecular data conflict when reconstructing phylogenetic relationships. Complicating matters, the ecological niche of stem testudines is ambiguous. To understand how turtles have evolved to hear in different environments, we examined middle ear morphology and scaling in most extant families, as well as some extinct species, using 3-dimensional reconstructions from micro magnetic resonance (MR) and submillimeter computed tomography (CT) scans. All families of testudines exhibited a similar shape of the bony structure of the middle ear cavity, with the tympanic disk located on the rostrolateral edge of the cavity. Sea Turtles have additional soft tissue that fills the middle ear cavity to varying degrees. When the middle ear cavity is modeled as an air-filled sphere of the same volume resonating in an underwater sound field, the calculated resonances for the volumes of the middle ear cavities largely fell within testudine hearing ranges. Although there were some differences in morphology, there were no statistically significant differences in the scaling of the volume of the bony middle ear cavity with head size among groups when categorized by phylogeny and ecology. Because the cavity is predicted to resonate underwater within the testudine hearing range, the data support the hypothesis of an aquatic origin for testudines, and function of the middle ear cavity in underwater sound detection.

Indexed as

AnimalsEar, MiddleRadiographyTurtles

Identifiers

PMID23342082
PMCPMC3544720
OpenAlexW1985073307

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.