Evidence map›Paper›PMID 29657807›Full record

ArticleRoyal Society open science2018

Trophic specialization drives morphological evolution in sea snakes.

Emma Sherratt, Arne R Rasmussen, Kate L Sanders

Open access · goldAbstract read
In one paragraph

Article in Royal Society open science, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

22 citing papers in PubMed, 57 citations in OpenAlex.

  1. The genomic origins and evolutionary path to a key innovation in the world's most venomous snakes.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  3. Return to the sea:Parasitology · 2026
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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

3 authors at 2 institutions in 2 countries.

Emma SherrattSchool of Biological Sciences, The University of Adelaide, Adelaide, South Australia 5005, Australia.ORCID 0000-0003-2164-7877
Arne R RasmussenThe Royal Danish Academy of Fine Arts, Schools of Architecture, Design and Conservation, Copenhagen K, Denmark.ORCID 0000-0001-5454-4423
Kate L SandersSchool of Biological Sciences, The University of Adelaide, Adelaide, South Australia 5005, Australia.ORCID 0000-0002-9581-268X
The University of Adelaide · AUSchools of Visual Arts, The Royal Danish Academy of Fine Arts · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Viviparous sea snakes are the most rapidly speciating reptiles known, yet the ecological factors underlying this radiation are poorly understood. Here, we reconstructed dated trees for 75% of sea snake species and quantified body shape (forebody relative to hindbody girth), maximum body length and trophic diversity to examine how dietary specialization has influenced morphological diversification in this rapid radiation. We show that sea snake body shape and size are strongly correlated with the proportion of burrowing prey in the diet. Specialist predators of burrowing eels have convergently evolved a 'microcephalic' morphotype with dramatically reduced forebody relative to hindbody girth and intermediate body length. By comparison, snakes that predominantly feed on burrowing gobies are generally short-bodied and small-headed, but there is no evidence of convergent evolution. The eel specialists also exhibit faster rates of size and shape evolution compared to all other sea snakes, including those that feed on gobies. Our results suggest that trophic specialization to particular burrowing prey (eels) has invoked strong selective pressures that manifest as predictable and rapid morphological changes. Further studies are needed to examine the genetic and developmental mechanisms underlying these dramatic morphological changes and assess their role in sea snake speciation.

Indexed as

convergenceecomorphologyevolutionary ratesphenotypic evolutiontempo and mode

Identifiers

PMID29657807
PMCPMC5882731
OpenAlexW2794611358

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.