Evidence map›Paper›PMID 31213140›Full record

ArticleBiology letters2019

Honeybees use absolute rather than relative numerosity in number discrimination.

Maria Bortot, Christian Agrillo, Aurore Avarguès-Weber, Angelo Bisazza, Maria Elena Miletto Petrazzini, Martin Giurfa

Abstract read
In one paragraph

Article in Biology letters, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing 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

36 citing papers in PubMed.

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  15. An insect brain organizes numbers on a left-to-right mental number line.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  16. A neural theory for counting memories.Nature communications · 2022
    Article
  17. Article
  18. The evolution of quantitative sensitivity.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Article
  19. 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

6 authors.

Maria Bortot1 Center for Mind/Brain Sciences, University of Trento , 38068 Rovereto , Italy.
Christian Agrillo3 Department of General Psychology, University of Padova , 35131 Padova , Italy.
Aurore Avarguès-Weber2 Research Centre on Animal Cognition, Center for Integrative Biology, CNRS, University of Toulouse , 31062 Toulouse Cedex 09 , France.
Angelo Bisazza3 Department of General Psychology, University of Padova , 35131 Padova , Italy.
Maria Elena Miletto Petrazzini4 School of Biological and Chemical Sciences, Queen Mary University of London , London E1 4NS , UK.
Martin Giurfa2 Research Centre on Animal Cognition, Center for Integrative Biology, CNRS, University of Toulouse , 31062 Toulouse Cedex 09 , France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Various vertebrate species use relative numerosity judgements in comparative assessments of quantities for which they use larger/smaller relationships rather than absolute number. The numerical ability of honeybees shares basic properties with that of vertebrates but their use of absolute or relative numerosity has not been explored. We trained free-flying bees to choose variable images containing three dots; one group ('larger') was trained to discriminate 3 from 2, while another group ('smaller') was trained to discriminate 3 from 4. In both cases, numbers were kept constant but stimulus characteristics and position were varied from trial to trial. Bees were then tested with novel stimuli displaying the previously trained numerosity (3) versus a novel numerosity (4 for 'larger' and 2 for 'smaller'). Both groups preferred the three-item stimulus, consistent with absolute numerosity. They also exhibited ratio-dependent discrimination of numbers, a property shared by vertebrates, as performance after 2 versus 3 was better than after 3 versus 4 training. Thus, bees differ from vertebrates in their use of absolute rather than of relative numerosity but they also have some numeric properties in common.

Indexed as

JudgmentAnimalsBeeshoneybeesinsect cognitionnumber discriminationnumerical rulenumerosity

Identifiers

PMID31213140
PMCPMC6597503

What OpenQuestion holds

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Registered trials

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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.