Evidence map›Paper›PMID 31162047›Full record

ArticleeLife2019

Compound-V formations in shorebird flocks.

Aaron J Corcoran, Tyson L Hedrick

Open access · goldAbstract read
In one paragraph

Article in eLife, 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
3.2field-weighted citation impact, top 9% 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, 27 citations in OpenAlex.

  1. A minimal wake-vortex model explains formation flight of flapping birds.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  4. It pays to follow the leader: Metabolic cost of flight is lower for trailing birds in small groups.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  5. Article
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  9. Characterization of bird formations using fuzzy modelling.Journal of the Royal Society, Interface · 2023
    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

2 authors at 1 institution in 1 country.

Aaron J CorcoranUniversity of North Carolina at Chapel Hill, Chapel Hill, United States.ORCID 0000-0003-1457-3689
Tyson L HedrickUniversity of North Carolina at Chapel Hill, Chapel Hill, United States.ORCID 0000-0002-6573-9602
University of North Carolina at Chapel Hill · US

Funding

National Science Foundation 1253276
6 · The paper itself

Abstract

Animal groups have emergent properties that result from simple interactions among individuals. However, we know little about why animals adopt different interaction rules because of sparse sampling among species. Here, we identify an interaction rule that holds across single and mixed-species flocks of four migratory shorebird species spanning a seven-fold range of body masses. The rule, aligning with a one-wingspan lateral distance to nearest neighbors in the same horizontal plane, scales linearly with wingspan but is independent of nearest neighbor distance and neighbor species. This rule propagates outward to create a global flock structure that we term the compound-V formation. We propose that this formation represents an intermediary between the cluster flocks of starlings and the simple-V formations of geese and other large migratory birds. We explore multiple hypotheses regarding the benefit of this flock structure and how it differs from structures observed in other flocking species.

Indexed as

Behavior, AnimalBirdsFlight, AnimalAnimalsbiomechanicsbirdcollective behaviorevolutionary biologyflightflockingmigration

Identifiers

PMID31162047
PMCPMC6548498
OpenAlexW2911792121

What OpenQuestion holds

Textmetadata
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.