Evidence map›Paper›PMID 31594521›Full record

ArticleJournal of the Royal Society, Interface2019

Optic flow cues help explain altitude control over sea in freely flying gulls.

Julien R Serres, Thomas J Evans, Susanne Åkesson, Olivier Duriez, Judy Shamoun-Baranes, Franck Ruffier, Anders Hedenström

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the Royal Society, Interface, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
5.0field-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

9 citing papers in PubMed, 20 citations in OpenAlex.

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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

7 authors at 4 institutions in 5 countries.

Julien R SerresAix Marseille Univ, CNRS, ISM, Marseille, France.
Thomas J EvansDepartment of Biology, CAnMove, Lund University, Ecology Building, 223 62 Lund, Sweden.
Susanne ÅkessonDepartment of Biology, CAnMove, Lund University, Ecology Building, 223 62 Lund, Sweden.
Olivier DuriezCEFE UMR 5175, CNRS - Université de Montpellier - Université Paul-Valéry Montpellier - EPHE - 1919 route de Mende, 34293 Montpellier cedex 5, France.
Judy Shamoun-BaranesTheoretical and Computational Ecology, Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, PO Box 94 248, 1090 GE Amsterdam, The Netherlands.
Franck RuffierAix Marseille Univ, CNRS, ISM, Marseille, France.
Anders HedenströmDepartment of Biology, CAnMove, Lund University, Ecology Building, 223 62 Lund, Sweden.
Centre National de la Recherche Scientifique · FRLund University · SEInstitute for Biodiversity · DEMarine Scotland · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

For studies of how birds control their altitude, seabirds are of particular interest because they forage offshore where the visual environment can be simply modelled by a flat world textured by waves then generating only ventral visual cues. This study suggests that optic flow, i.e. the rate at which the sea moves across the eye's retina, can explain gulls' altitude control over seas. In particular, a new flight model that includes both energy and optical invariants helps explain the gulls' trajectories during offshore takeoff and cruising flight. A linear mixed model applied to 352 flights from 16 individual lesser black backed gulls (

Indexed as

AltitudeModels, BiologicalVision, OcularAnimalsCharadriiformesFlight, AnimalOceans and Seasenergy invariantflight modellingmotion visionoptical invariantvisual neuroscience

Identifiers

PMID31594521
PMCPMC6833325
OpenAlexW2979501512

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.