Evidence map›Paper›PMID 24430798›Full record

ArticleHuman nature (Hawthorne, N.Y.)2014

Why what juveniles do matters in the evolution of cooperative breeding.

Karen L Kramer

Abstract read
PubMed Publisher
In one paragraph

Article in Human nature (Hawthorne, N.Y.), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
4.9field-weighted citation impact, top 5% 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

15 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Female cooperation: evolutionary, cross-cultural and ethnographic evidence.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Review
  3. Article
  4. Article
  5. Does maternal grandmother's support improve maternal and child nutritional health outcomes? Evidence from Merida, Yucatan, Mexico.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Article
  6. Children are important too: juvenile playgroups and maternal childcare in a foraging population, the Agta.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. The evolution of altruistic social preferences in human groups.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016
    Review
  15. 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

1 author at 1 institution in 1 country.

Karen L KramerDepartment of Anthropology, University of Utah, Salt Lake City, UT, 02138, USA, karen.kramer@anthro.utah.edu.
University of Utah · US

Funding

INTERAGE TRANSFERS AND THE ROLE OF THE ELDERLY IN MAYAR03AG019044 · NIA · UNIVERSITY OF CALIFORNIA BERKELEY · PI LEE, RONALD D · 2000 to 2000
$75k
NIA NIH HHS AG19044-01
6 · The paper itself

Abstract

The evolution of cooperative breeding is complex, and particularly so in humans because many other life history traits likely evolved at the same time. While cooperative childrearing is often presumed ancient, the transition from maternal self-reliance to dependence on allocare leaves no known empirical record. In this paper, an exploratory model is developed that incorporates probable evolutionary changes in birth intervals, juvenile dependence, and dispersal age to predict under what life history conditions mothers are unable to raise children without adult cooperation. The model's outcome variable (net balance) integrates dependent children's production and consumption as a function of varying life history parameters to estimate the investment mothers or others have to spend subsidizing children. Results suggest that maternal-juvenile cooperation can support the early transition toward a reduction in birth intervals, a longer period of juvenile dependence, and having overlapping young. The need for adult cooperation is most evident when birth intervals are short and age at net production is late. Findings suggest that the needs of juveniles would not have been an early selective force for adult cooperation. Rather, an age-graded division of labor and the mutual benefits of maternal-juvenile cooperation could be an important, but overlooked step in the evolution of cooperative breeding.

Indexed as

Child RearingCooperative BehaviorModels, PsychologicalAdolescentAge FactorsBiological EvolutionChildChild, PreschoolHumansInfantInfant, NewbornMaternal BehaviorReproductionTime FactorsYoung Adult

Identifiers

PMID24430798
OpenAlexW2063057073

What Socratic 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 Socratic graph.