Evidence map›Paper›PMID 42096012›Full record

ArticlePrimates; journal of primatology2026

Get over here: black capuchin monkeys use long-range vocalizations to adjust the distance between individuals.

Vitor Luccas, Patrícia Izar

Abstract read
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In one paragraph

Article in Primates; journal of primatology, 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
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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

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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.

Vitor LuccasDepartment of Experimental Psychology, Institute of Psychology, University of São Paulo, São Paulo, Brazil. vitor_luccas@yahoo.com.br.ORCID http://orcid.org/0000-0001-5203-1798
Patrícia IzarDepartment of Experimental Psychology, Institute of Psychology, University of São Paulo, São Paulo, Brazil.

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico 14/13237-1Fundação de Amparo à Pesquisa do Estado de São Paulo 14/13237-1
6 · The paper itself

Abstract

When dispersed, some primates' species can use long-range vocalizations to exchange information about spatial position within the group and to coordinate behaviors, and it is also believed that these vocalizations play a role in communication between groups. These vocalizations help adjust the distance between individuals and are individually recognized. Thus, our objective was to analyze whether the distance between individuals within the group changes after a long-range vocalization. The target of the study was the population of black capuchin monkeys (Sapajus nigritus cucullatus) inhabiting an area within the southeastern Brazilian Atlantic Forest, the Carlos Botelho State Park. We measured group spread: the distance between the coordinates of the location of the tree most distant group members at every 5 min during entire days. Long-range vocalizations were recorded as all occurrences. The transfer function, analysis derived from time series, indicated that the distance between individuals decreased in the first scan after each long-range vocalization. We conclude that long-range vocalizations can be considered as one of the mechanisms responsible for maintaining distance between individuals of the same group.

Indexed as

CebinaeSapajusSocial BehaviorVocalization, AnimalAnimalsBrazilFemaleMaleAtlantic forestInterindividual distanceLong-range vocalizationSapajus nigritus

Identifiers

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.