Evidence map›Paper›PMID 34588042›Full record

ArticleThe Behavioral and brain sciences2021

Why don't cockatoos have war songs?

Cody Moser, Jordan Ackerman, Alex Dayer, Shannon Proksch, Paul E Smaldino

Abstract readComment
PubMed Publisher
In one paragraph

Article in The Behavioral and brain sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. The role of musical pitch in long-distance defensive signaling.Annals of the New York Academy of Sciences · 2025
    Review
  2. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Cody MoserDepartment of Cognitive and Information Sciences, University of California, Merced, Merced, CA95343, USA. cmoser2@ucmerced.edujackerman2@ucmerced.eduadayer@ucmerced.edusproksch@ucmerced.edupsmaldino@ucmerced.edu; smaldino.com.ORCID 0000-0002-5068-0740
Jordan AckermanDepartment of Cognitive and Information Sciences, University of California, Merced, Merced, CA95343, USA. cmoser2@ucmerced.edujackerman2@ucmerced.eduadayer@ucmerced.edusproksch@ucmerced.edupsmaldino@ucmerced.edu; smaldino.com.
Alex DayerDepartment of Cognitive and Information Sciences, University of California, Merced, Merced, CA95343, USA. cmoser2@ucmerced.edujackerman2@ucmerced.eduadayer@ucmerced.edusproksch@ucmerced.edupsmaldino@ucmerced.edu; smaldino.com.
Shannon ProkschDepartment of Cognitive and Information Sciences, University of California, Merced, Merced, CA95343, USA. cmoser2@ucmerced.edujackerman2@ucmerced.eduadayer@ucmerced.edusproksch@ucmerced.edupsmaldino@ucmerced.edu; smaldino.com.
Paul E SmaldinoDepartment of Cognitive and Information Sciences, University of California, Merced, Merced, CA95343, USA. cmoser2@ucmerced.edujackerman2@ucmerced.eduadayer@ucmerced.edusproksch@ucmerced.edupsmaldino@ucmerced.edu; smaldino.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We suggest that the accounts offered by the target articles could be strengthened by acknowledging the role of group selection and cultural niche construction in shaping the evolutionary trajectory of human music. We argue that group level traits and highly variable cultural niches can explain the diversity of human song, but the target articles' accounts are insufficient to explain such diversity.

Indexed as

CockatoosMusicAnimalsBiological EvolutionHumans

Identifiers

PMID34588042

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.