Evidence map›Paper›PMID 22529349›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

Foraging success of biological Lévy flights recorded in situ.

Nicolas E Humphries, Henri Weimerskirch, Nuno Queiroz, Emily J Southall, David W Sims

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers.

0numbers the graph read from it
0cells of the map it votes in
87citing 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

87 citing papers in PubMed.

  1. Marine radar reveals novel group foraging patterns in pelagic seabirds.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2026
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  3. Nonequilibrium hyperuniform states in active turbulence.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  5. Review
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  7. Physics of diffusion in viral genome evolution.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  8. Article
  9. Article
  10. Honey bees infer source location from the dances of returning foragers.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  11. Article
  12. Understanding the structure of cognitive noise.PLoS computational biology · 2022
    Article
  13. Attaining the recesses of the cognitive space.Cognitive neurodynamics · 2022
    Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
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  20. Article

27 more citing papers are in PubMed but not listed here.

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.

Nicolas E HumphriesMarine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth PL1 2PB, United Kingdom.
Henri Weimerskirch
Nuno Queiroz
Emily J Southall
David W Sims

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It is an open question how animals find food in dynamic natural environments where they possess little or no knowledge of where resources are located. Foraging theory predicts that in environments with sparsely distributed target resources, where forager knowledge about resources' locations is incomplete, Lévy flight movements optimize the success of random searches. However, the putative success of Lévy foraging has been demonstrated only in model simulations. Here, we use high-temporal-resolution Global Positioning System (GPS) tracking of wandering (Diomedea exulans) and black-browed albatrosses (Thalassarche melanophrys) with simultaneous recording of prey captures, to show that both species exhibit Lévy and Brownian movement patterns. We find that total prey masses captured by wandering albatrosses during Lévy movements exceed daily energy requirements by nearly fourfold, and approached yields by Brownian movements in other habitats. These results, together with our reanalysis of previously published albatross data, overturn the notion that albatrosses do not exhibit Lévy patterns during foraging, and demonstrate that Lévy flights of predators in dynamic natural environments present a beneficial alternative strategy to simple, spatially intensive behaviors. Our findings add support to the possibility that biological Lévy flight may have naturally evolved as a search strategy in response to sparse resources and scant information.

Indexed as

AlgorithmsAnimal MigrationAnimalsBirdsEcosystemExploratory BehaviorFeeding BehaviorFlight, AnimalFood ChainGeographic Information SystemsGeographyIndian OceanModels, BiologicalPredatory BehaviorTelemetry

Identifiers

PMID22529349
PMCPMC3358854

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.