Evidence map›Paper›PMID 34158487›Full record

ArticleNature communications2021

Toxoplasma gondii infections are associated with costly boldness toward felids in a wild host.

Eben Gering, Zachary M Laubach, Patty Sue D Weber, Gisela Soboll Hussey, Kenna D S Lehmann, Tracy M Montgomery, Julie W Turner, Wei Perng, Malit O Pioon, Kay E Holekamp and 1 more

Abstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed.

  1. Delayed Pathogenicity inMicroorganisms · 2026
    Article
  2. Article
  3. Molecular detection and characterisation ofInternational journal for parasitology. Parasites and wildlife · 2025
    Article
  4. Article
  5. Review
  6. Seroprevalence ofPathogens (Basel, Switzerland) · 2025
    Article
  7. Article
  8. Review
  9. Legal provisions on medical aid in dying encode moral intuition.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Parasite-mediated manipulation?Biology letters · 2023
    Article
  15. Molecular Survey ofPathogens (Basel, Switzerland) · 2023
    Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Associations betweenInternational journal for parasitology. Parasites and wildlife · 2022
    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

11 authors.

Eben Gering *Michigan State University, Department of Integrative Biology and Program in Ecology, Evolution and Behavior, East Lansing, MI, USA.ORCID 0000-0002-1270-6727
Zachary M Laubach *Michigan State University, Department of Integrative Biology and Program in Ecology, Evolution and Behavior, East Lansing, MI, USA. zachary.laubach@colorado.edu.ORCID 0000-0003-2614-139X
Patty Sue D WeberMichigan State University, Department of Large Animal Clinical Sciences, College of Veterinary Medicine, East Lansing, MI, USA.
Gisela Soboll HusseyMichigan State University, Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, East Lansing, MI, USA.
Kenna D S LehmannMichigan State University, Department of Integrative Biology and Program in Ecology, Evolution and Behavior, East Lansing, MI, USA.ORCID 0000-0003-2690-7332
Tracy M MontgomeryMichigan State University, Department of Integrative Biology and Program in Ecology, Evolution and Behavior, East Lansing, MI, USA.
Julie W TurnerMichigan State University, Department of Integrative Biology and Program in Ecology, Evolution and Behavior, East Lansing, MI, USA.ORCID 0000-0001-5449-5449
Wei PerngLEAD Center & University of Colorado, School of Public Health, Aurora, CO, United States.
Malit O PioonMara Hyena Project, Narok County, Kenya.
Kay E HolekampMichigan State University, Department of Integrative Biology and Program in Ecology, Evolution and Behavior, East Lansing, MI, USA.ORCID 0000-0001-5471-1076
Thomas GettyMichigan State University, Department of Integrative Biology and Program in Ecology, Evolution and Behavior, East Lansing, MI, USA.ORCID 0000-0002-8152-9429

Funding

Institutional Career Development CoreKL2TR002534 · NCATS · UNIVERSITY OF COLORADO DENVER · PI BURNHAM, ELLEN L · 2018 to 2022
$4.6M
NCATS NIH HHS KL2 TR002534
6 · The paper itself

Abstract

Toxoplasma gondii is hypothesized to manipulate the behavior of warm-blooded hosts to promote trophic transmission into the parasite's definitive feline hosts. A key prediction of this hypothesis is that T. gondii infections of non-feline hosts are associated with costly behavior toward T. gondii's definitive hosts; however, this effect has not been documented in any of the parasite's diverse wild hosts during naturally occurring interactions with felines. Here, three decades of field observations reveal that T. gondii-infected hyena cubs approach lions more closely than uninfected peers and have higher rates of lion mortality. We discuss these results in light of 1) the possibility that hyena boldness represents an extended phenotype of the parasite, and 2) alternative scenarios in which T. gondii has not undergone selection to manipulate behavior in host hyenas. Both cases remain plausible and have important ramifications for T. gondii's impacts on host behavior and fitness in the wild.

Indexed as

AnimalsAntibodies, ProtozoanBehavior, AnimalCatsFemaleHost-Parasite InteractionsMaleToxoplasmaToxoplasmosis, AnimalAntibodies, Protozoan

Identifiers

PMID34158487
PMCPMC8219747

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.