Evidence map›Paper›PMID 42504093›Full record

ArticleThe Journal of experimental biology2026

Experimental evidence for a suction-biting performance tradeoff in Mesoamerican cichlids.

Khalil T Russell, Peter C Wainwright

Abstract read
In one paragraph

Article in The Journal of experimental biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

2 authors.

Khalil T RussellDepartment of Evolution & Ecology, University of California, Davis, Davis, CA 95616, USA.ORCID 0009-0007-6681-5527
Peter C WainwrightDepartment of Evolution & Ecology, University of California, Davis, Davis, CA 95616, USA.ORCID 0000-0003-0498-4759

Funding

Achievement Rewards for College Scientists FoundationNational Science FoundationUniversity of California, Davis
6 · The paper itself

Abstract

Tradeoffs can occur when multiple functions are shared by a single mechanical system, where changes to the system that improve the performance of one function necessarily lead to a decrease in performance of a second function. The teleost oral jaws are a complex mechanical system, and a multifunction tradeoff is thought to exist between the opposing functions of suction-based and biting-based feeding. We experimentally measured suction- and biting-based feeding performance across 10 heroine cichlid species spanning a range of ecomorphological diversity to test for the presence of a suction-biting tradeoff. We found an inverse relationship between suction-based and biting-based feeding performance across species, as well as significant relationships between performance and morphological features of the oral jaws, where larger oral-jaw gape and greater protrusion were associated with improved suction-feeding and decreased benthic-feeding performance. We observed a fivefold range among species in biting rates during benthic-feeding trials, with a twofold range observed among benthic-feeding specialists, and propose that diversity in the properties of attached prey has generated diversity among biting-based specialists reliant on high-force bites versus those reliant on high biting rates.

Indexed as

CichlidsFeeding BehaviorAnimalsBiomechanical PhenomenaJawPredatory BehaviorBehaviorCichlidaeEcologyFeedingFunctional morphologyPerformanceTradeoff

Identifiers

PMID42504093
PMCPMC13615685

What OpenQuestion holds

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Registered trials

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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.