Evidence map›Paper›PMID 24101622›Full record

ArticlePhilosophical transactions of the Royal Society of London. Series B, Biological sciences2013

Risk, mobility or population size? Drivers of technological richness among contact-period western North American hunter-gatherers.

Mark Collard, Briggs Buchanan, Michael J O'Brien, Jonathan Scholnick

Abstract read
In one paragraph

Article in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing 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

31 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Human major transitions from the perspective of distributed adaptations.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Article
  9. Article
  10. Article
  11. Article
  12. Cultural evolution and prehistoric demography.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Review
  13. Demographic estimates from the Palaeolithic-Mesolithic boundary in Scandinavia: comparative benchmarks and novel insights.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Article
  14. Article
  15. Article
  16. Review
  17. Cultural complexity and evolution in fluctuating environments.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018
    Article
  18. Divide and conquer: intermediate levels of population fragmentation maximize cultural accumulation.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018
    Article
  19. Current and potential roles of archaeology in the development of cultural evolutionary theory.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018
    Article
  20. The niche construction of cultural complexity: interactions between innovations, population size and the environment.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017
    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.

Mark CollardHuman Evolutionary Studies Program and Department of Archaeology, Simon Fraser University, , Burnaby, British Columbia, Canada.
Briggs Buchanan
Michael J O'Brien
Jonathan Scholnick

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Identifying factors that influence technological evolution in small-scale societies is important for understanding human evolution. There have been a number of attempts to identify factors that influence the evolution of food-getting technology, but little work has examined the factors that affect the evolution of other technologies. Here, we focus on variation in technological richness (total number of material items and techniques) among recent hunter-gatherers from western North America and test three hypotheses: (i) technological richness is affected by environmental risk, (ii) population size is the primary determinant of technological richness, and (iii) technological richness is constrained by residential mobility. We found technological richness to be correlated with a proxy for environmental risk-mean rainfall for the driest month-in the manner predicted by the risk hypothesis. Support for the hypothesis persisted when we controlled for shared history and intergroup contact. We found no evidence that technological richness is affected by population size or residential mobility. These results have important implications for unravelling the complexities of technological evolution.

Indexed as

EcosystemEnvironmentTool Use BehaviorAnthropology, CulturalCultural EvolutionHumansMultivariate AnalysisNorth AmericaRegression AnalysisRiskSocial Behaviorhunter–gatherersmobility hypothesispopulation-size hypothesisrisk hypothesistechnological richnesswestern North America

Identifiers

PMID24101622
PMCPMC4027409

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.