Evidence map›Paper›PMID 38745460›Full record

ArticleJournal of the Royal Society, Interface2024

A refined magnetic pulse treatment method for magnetic navigation experiments with adequate sham control: a case study on free-flying songbirds.

Thiemo Karwinkel, Michael Winklhofer, Dario Allenstein, Vera Brust, Paula Christoph, Richard A Holland, Ommo Hüppop, Jan Steen, Franz Bairlein, Heiko Schmaljohann

Abstract read
In one paragraph

Article in Journal of the Royal Society, Interface, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Conservation-focused mapping of avian migratory routes using a pan-European automated telemetry network.Conservation biology : the journal of the Society for Conservation Biology · 2025
    Article
  3. Review
  4. 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

10 authors.

Thiemo KarwinkelInstitute of Avian Research 'Vogelwarte Helgoland', An der Vogelwarte 21, 26386 Wilhelmshaven, Germany.ORCID 0000-0001-6433-3013
Michael WinklhoferSchool of Mathematics and Science, Institute of Biology and Environmental Sciences, Carl von Ossietzky Universität Oldenburg, Ammerländer Heerstraße 114-118, Oldenburg 26129, Germany.ORCID 0000-0003-1352-9723
Dario AllensteinInstitute of Avian Research 'Vogelwarte Helgoland', An der Vogelwarte 21, 26386 Wilhelmshaven, Germany.ORCID 0009-0007-9847-0869
Vera BrustInstitute of Avian Research 'Vogelwarte Helgoland', An der Vogelwarte 21, 26386 Wilhelmshaven, Germany.ORCID 0000-0003-4128-4495
Paula ChristophInstitute of Avian Research 'Vogelwarte Helgoland', An der Vogelwarte 21, 26386 Wilhelmshaven, Germany.
Richard A HollandSchool of Environmental and Natural Sciences, University of Bangor, Deiniol Road, Bangor LL57 2UW, UK.ORCID 0000-0003-4495-8061
Ommo HüppopInstitute of Avian Research 'Vogelwarte Helgoland', An der Vogelwarte 21, 26386 Wilhelmshaven, Germany.ORCID 0000-0001-7048-3747
Jan SteenInstitute of Avian Research 'Vogelwarte Helgoland', An der Vogelwarte 21, 26386 Wilhelmshaven, Germany.
Franz BairleinInstitute of Avian Research 'Vogelwarte Helgoland', An der Vogelwarte 21, 26386 Wilhelmshaven, Germany.ORCID 0000-0001-9538-4024
Heiko SchmaljohannInstitute of Avian Research 'Vogelwarte Helgoland', An der Vogelwarte 21, 26386 Wilhelmshaven, Germany.ORCID 0000-0002-0886-4319

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Migratory songbirds may navigate by extracting positional information from the geomagnetic field, potentially with a magnetic-particle-based receptor. Previous studies assessed this hypothesis experimentally by exposing birds to a strong but brief magnetic pulse aimed at remagnetizing the particles and evoking an altered behaviour. Critically, such studies were not ideally designed because they lacked an adequate sham treatment controlling for the induced electric field that is fundamentally associated with a magnetic pulse. Consequently, we designed a sham-controlled magnetic-pulse experiment, with sham and treatment pulse producing a similar induced electric field, while limiting the sham magnetic field to a value that is deemed insufficient to remagnetize particles. We tested this novel approach by pulsing more than 250 wild, migrating European robins (

Indexed as

Animal MigrationSongbirdsAnimalsFlight, AnimalMagnetic Fieldsbird migrationbird navigationmagnetic mapmagnetic-particle-based sensormagnetic pulsetrigeminal magnetic sensor

Identifiers

PMID38745460
PMCPMC11285864

What OpenQuestion holds

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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.