Evidence map›Paper›PMID 35618818›Full record

ArticleNature ecology & evolution2022

Shoaling guppies evade predation but have deadlier parasites.

Jason C Walsman, Mary J Janecka, David R Clark, Rachael D Kramp, Faith Rovenolt, Regina Patrick, Ryan S Mohammed, Mateusz Konczal, Clayton E Cressler, Jessica F Stephenson

Abstract read
PubMed Publisher
In one paragraph

Article in Nature ecology & evolution, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. MOF-Derived Cu-TiOAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  2. Article
  3. Article
  4. Host dietary niche and site location on the river continuum shape trematode (International journal for parasitology. Parasites and wildlife · 2025
    Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
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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

10 authors.

Jason C WalsmanDepartment of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, USA. walsmanjason@gmail.com.ORCID http://orcid.org/0000-0001-8141-0340
Mary J JaneckaDepartment of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, USA.ORCID http://orcid.org/0000-0001-8231-4350
David R ClarkDepartment of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, USA.ORCID http://orcid.org/0000-0003-3125-0160
Rachael D KrampDepartment of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, USA.
Faith RovenoltDepartment of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, USA.ORCID http://orcid.org/0000-0001-5877-0460
Regina PatrickDepartment of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, USA.
Ryan S MohammedDepartment of Life Sciences, University of the West Indies, St. Augustine, Trinidad and Tobago.
Mateusz KonczalEvolutionary Biology Group, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland.
Clayton E CresslerSchool of Biological Sciences, University of Nebraska, Lincoln, NE, USA.
Jessica F StephensonDepartment of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, USA.ORCID http://orcid.org/0000-0001-8939-5149

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Parasites exploit hosts to replicate and transmit, but overexploitation kills both host and parasite. Predators may shift this cost-benefit balance by consuming infected hosts or changing host behaviour, but the strength of these effects remains unclear. Here we use field and lab data on Trinidadian guppies and their Gyrodactylus spp. parasites to show how differential predation pressure influences parasite virulence and transmission. We use an experimentally demonstrated virulence-transmission trade-off to parametrize a mathematical model in which host shoaling (as a means of anti-predator defence), increases contact rates and selects for higher virulence. Then we validate model predictions by collecting parasites from wild, Trinidadian populations; parasites from high-predation populations were more virulent in common gardens than those from low-predation populations. Broadly, our results indicate that reduced social contact selects against parasite virulence.

Indexed as

ParasitesPoeciliaAnimalsPredatory Behavior

Identifiers

PMID35618818

What OpenQuestion holds

Textmetadata
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.