Evidence map›Paper›PMID 22506065›Full record

ArticlePloS one2012

Cultural phylogenetics of the Tupi language family in lowland South America.

Robert S Walker, Søren Wichmann, Thomas Mailund, Curtis J Atkisson

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
70.9field-weighted citation impact, top 1% of its field
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

22 citing papers in PubMed, 95 citations in OpenAlex.

  1. A multidisciplinary overview on the Tupi-speaking people expansion.American journal of biological anthropology · 2025
    Review
  2. Article
  3. Article
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  7. A genomic perspective on South American human history.Genetics and molecular biology · 2022
    Article
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  11. Genomic insight into the origins and dispersal of the Brazilian coastal natives.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  12. Article
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  15. Article
  16. Hunter-Gatherers and the Origins of Religion.Human nature (Hawthorne, N.Y.) · 2016
    Article
  17. Article
  18. Article
  19. The domestication of Amazonia before European conquest.Proceedings. Biological sciences · 2015
    Review
  20. 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

4 authors at 3 institutions in 3 countries.

Robert S WalkerDepartment of Anthropology, University of Missouri, Columbia, Missouri, United States of America. walkerro@missouri.edu
Søren Wichmann
Thomas Mailund
Curtis J Atkisson
University of Missouri · USAarhus University · DKMax Planck Society · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent advances in automated assessment of basic vocabulary lists allow the construction of linguistic phylogenies useful for tracing dynamics of human population expansions, reconstructing ancestral cultures, and modeling transition rates of cultural traits over time.

methodsHere we investigate the Tupi expansion, a widely-dispersed language family in lowland South America, with a distance-based phylogeny based on 40-word vocabulary lists from 48 languages. We coded 11 cultural traits across the diverse Tupi family including traditional warfare patterns, post-marital residence, corporate structure, community size, paternity beliefs, sibling terminology, presence of canoes, tattooing, shamanism, men's houses, and lip plugs. RESULTS/DISCUSSION: The linguistic phylogeny supports a Tupi homeland in west-central Brazil with subsequent major expansions across much of lowland South America. Consistently, ancestral reconstructions of cultural traits over the linguistic phylogeny suggest that social complexity has tended to decline through time, most notably in the independent emergence of several nomadic hunter-gatherer societies. Estimated rates of cultural change across the Tupi expansion are on the order of only a few changes per 10,000 years, in accord with previous cultural phylogenetic results in other language families around the world, and indicate a conservative nature to much of human culture.

Indexed as

Cultural EvolutionCultureLanguageLinguisticsPopulation DynamicsFemaleHumansMalePhylogenySouth America

Identifiers

PMID22506065
PMCPMC3323632
OpenAlexW2036205664

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.