Evidence map›Paper›PMID 22246254›Full record

ArticleThe Journal of experimental biology2012

Worker division of labor and endocrine physiology are associated in the harvester ant, Pogonomyrmex californicus.

Adam G Dolezal, Colin S Brent, Bert Hölldobler, Gro V Amdam

Abstract read
In one paragraph

Article in The Journal of experimental biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
5.4field-weighted citation impact, top 4% 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

27 citing papers in PubMed, 78 citations in OpenAlex.

  1. Article
  2. Juvenile hormone as a key regulator for asymmetric caste differentiation in ants.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  20. Extended evolution: A conceptual framework for integrating regulatory networks and niche construction.Journal of experimental zoology. Part B, Molecular and developmental evolution · 2015
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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 4 institutions in 3 countries.

Adam G DolezalSchool of Life Sciences, Arizona State University, Tempe, AZ 85287, USA. Adam.Dolezal@asu.edu
Colin S Brent
Bert Hölldobler
Gro V Amdam
Arizona State University · USNorwegian University of Life Sciences · NOUniversity of Würzburg · DEU.S. Arid Land Agricultural Research Center · US

Funding

THE MATHEMATICAL DEMOGRAPHY OF BIODEMOGRAPHYP01AG022500 · NIA · UNIVERSITY OF CALIFORNIA DAVIS · PI CAREY, JAMES R. · 2003 to 2010
$8.1M
NIA NIH HHS P01 AG022500NIA NIH HHS P01 AG22500
6 · The paper itself

Abstract

In Pogonomyrmex californicus harvester ants, an age-associated division of labor occurs in the worker caste, in which young workers perform in-nest tasks and older workers forage for food. Here, we tested whether this behavioral division is age based or age flexible, and whether it coincides with differential expression of systemic hormones with known roles in behavioral regulation. Whole-body content of juvenile hormone (JH) and ecdysteroids was determined in workers from (1) age-typical colonies, in which a typical age structure is maintained and workers transition across behaviors naturally, and (2) single-cohort colonies, which are entirely composed of same-aged workers, facilitating the establishment of age-independent division of labor. Foragers from both colony types had higher JH and lower ecdysteroid content than workers performing in-nest tasks, suggesting that age is not the sole determinant of worker behavior. This association between hormone content and behavior of P. californicus workers is similar to that previously observed in founding queens of this species. Because these hormones are key regulators of development and reproductive behavior, our data are consistent with the reproductive ground plan hypothesis (RGPH), which posits that the reproductive regulatory mechanisms of solitary ancestors were co-opted to regulate worker behavior.

Indexed as

Social BehaviorAnimalsAntsBehavior, AnimalEcdysteroidsEndocrine SystemJuvenile HormonesReproductionEcdysteroidsJuvenile Hormones

Identifiers

PMID22246254
PMCPMC3257171
OpenAlexW2134632418

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.