Evidence map›Paper›PMID 41959698›Full record

ArticleAnimal behaviour2025

Is there evidence for the Bruce effect in white-faced capuchins?

Megan Petersdorf, Lauren F Brasington, Nelle K Kulick, Margaret S Buehler, Saúl Cheves Hernandez, Linda M Fedigan, Ronald Lopez Navarro, Amanda D Melin, Fernando A Campos, Katharine M Jack

Abstract read
In one paragraph

Article in Animal behaviour, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Intergroup Encounters Among Wild White-Faced Capuchins (International journal of primatology · 2026
    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

10 authors.

Megan PetersdorfDepartment of Anthropology, Tulane University, New Orleans, LA, 70118, USA.
Lauren F BrasingtonDepartment of Anthropology, Tulane University, New Orleans, LA, 70118, USA.
Nelle K KulickDepartment of Anthropology, Tulane University, New Orleans, LA, 70118, USA.
Margaret S BuehlerDepartment of Anthropology, Tulane University, New Orleans, LA, 70118, USA.
Saúl Cheves HernandezSanta Rosa Primate Conservation Fund, Costa Rica.
Linda M FediganDepartment of Anthropology and Archeology, University of Calgary, Calgary, AB, Canada T2N 1N4.
Ronald Lopez NavarroSanta Rosa Primate Conservation Fund, Costa Rica.
Amanda D MelinDepartment of Anthropology and Archeology, University of Calgary, Calgary, AB, Canada T2N 1N4.
Fernando A CamposDepartment of Anthropology, University of Texas at San Antonio, TX 78249, USA.
Katharine M JackDepartment of Anthropology, Tulane University, New Orleans, LA, 70118, USA.

Funding

A new model system for assessing the socio-environmental determinants of the pace of aging: leveraging a long-term study of wild capuchinsR61AG078529 · NIA · UNIVERSITY OF TEXAS SAN ANTONIO · PI CAMPOS, FERNANDO ALONSO, JACK, KATHARINE MARY · 2022 to 2023
$570k
NIA NIH HHS R61 AG078529
6 · The paper itself

Abstract

Infanticide by males is an extreme form of sexual conflict that can increase male reproductive success at a cost to female reproductive success. Females have evolved a variety of strategies to reduce the occurrence and the cost of infanticide, including the termination of pregnancy after nontraumatic exposure to non-sire males, known as the Bruce effect. A recent model (Zipple 2020) proposed that the Bruce effect will evolve in populations if the risk of infanticide is high and alpha male replacements occur routinely but infrequently relative to gestation length. We tested this model using 38 years of demographic data from a population of wild white-faced capuchins (

Indexed as

Bruce effectInfanticidemale take-overprimatessexual conflictsexual selectionwhite-faced capuchin

Identifiers

PMID41959698
PMCPMC13061273

What OpenQuestion holds

Textmetadata
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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.