Evidence map›Paper›PMID 25330080›Full record

ArticlePloS one2014

The role of colony size on tunnel branching morphogenesis in ant nests.

Jacques Gautrais, Camille Buhl, Sergi Valverde, Pascale Kuntz, Guy Theraulaz

Abstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
–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

7 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Foraging behaviour affects nest architecture in a cross-species comparison of ant nests.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Pooled it
  2. The evolutionary ecology of nests: a cross-taxon approach.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Article
  3. Article
  4. Article
  5. Interdisciplinary approaches for uncovering the impacts of architecture on collective behaviour.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018
    Article
  6. Article
  7. Harvester ant nest architecture is more strongly affected by intrinsic than extrinsic factors.Behavioral ecology : official journal of the International Society for Behavioral Ecology
    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

5 authors.

Jacques GautraisCentre de Recherches sur la Cognition Animale, Université de Toulouse, Toulouse, France; Centre de Recherches sur la Cognition Animale, Centre National de la Recherche Scientifique UMR5169, Toulouse, France.
Camille BuhlSchool of Agriculture, Food and Wine, The University of Adelaide, Adelaide, Australia.
Sergi ValverdeComplex Systems Laboratory (ICREA-UPF), Barcelona, Spain; Institut de Biologia Evolutiva (CSIC-UPF), Barcelona, Spain.
Pascale KuntzLaboratoire d'Informatique de Nantes-Atlantique, Polytech'Nantes, Nantes, France.
Guy TheraulazCentre de Recherches sur la Cognition Animale, Université de Toulouse, Toulouse, France; Centre de Recherches sur la Cognition Animale, Centre National de la Recherche Scientifique UMR5169, Toulouse, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many ant species excavate nests that are made up of chambers and interconnecting tunnels. There is a general trend of an increase in nest complexity with increasing population size. This complexity reflects a higher ramification and anastomosis of tunnels that can be estimated by the meshedness coefficient of the tunnelling networks. It has long been observed that meshedness increases with colony size within and across species, but no explanation has been provided so far. Since colony size is a strong factor controlling collective digging, a high value of the meshedness could simply be a side effect of a larger number of workers. To test this hypothesis, we study the digging dynamics in different group size of ants Messor sancta. We build a model of collective digging that is calibrated from the experimental data. Model's predictions successfully reproduce the topological properties of tunnelling networks observed in experiments, including the increase of the meshedness with group size. We then use the model to investigate situations in which collective digging progresses outward from a centre corresponding to the way tunnelling behaviour occurs in field conditions. Our model predicts that, when all other parameters are kept constant, an increase of the number of workers leads to a higher value of the meshedness and a transition from tree-like structures to highly meshed networks. Therefore we conclude that colony size is a key factor determining tunnelling network complexity in ant colonies.

Indexed as

Nesting BehaviorSocial BehaviorAnimalsAntsMorphogenesisNonlinear DynamicsPopulation DensityPsychology, Social

Identifiers

PMID25330080
PMCPMC4198125

What OpenQuestion holds

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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.