Cited by 165Electromagnetic Fields and Biological EffectsGeomagnetism and Paleomagnetism StudiesAvian ecology and behavior

Magnetic compass orientation of migratory birds in the presence of a 1.315�MHz oscillating field

Thalau, Peter, Ritz, Thorsten, Stapput, Katrin, Wiltschko, Roswitha, Wiltschko, Wolfgang·2005·Naturwissenschaften

Abstract

The radical pair model of magnetoreception predicts that magnetic compass orientation can be disrupted by high frequency magnetic fields in the Megahertz range. European robins, Erithacus rubecula, were tested under monochromatic 565 nm green light in 1.315 MHz fields of 0.48 microT during spring and autumn migration, with 1.315 MHz being the frequency that matches the energetic splitting induced by the local geomagnetic field. The birds' responses depended on the alignment of the oscillating field with respect to the static geomagnetic field: when the 1.315 MHz field was aligned parallel with the field lines, birds significantly preferred northerly directions in spring and southerly directions in autumn. These preferences reflect normal migratory orientation, with the variance slightly increased compared to control tests in the geomagnetic field alone or to tests in a 7.0 MHz field. However, in the 1.315 MHz field aligned at a 24 degrees angle to the field lines, the birds were disoriented in both seasons, indicating that the high frequency field interfered with magnetoreception. These finding are in agreement with theoretical predictions and support the assumption of a radical-pair mechanism underlying the processes mediating magnetic compass information in birds.

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Crossref · 10.1007/s00114-004-0595-8

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  • Halpern and Crosson demonstrate how entanglement can change molecular binding rates, which goes some way to supporting Fisher's neural entanglement hypothesis.

    “They also demonstrate how entanglement can change molecular binding rates, which goes some way to supporting Fisher's neural entanglement hypothesis 204 .”

    From Quantum effects in the brain: A review (2020) · cites this paper as [204]

  • Singlet-triplet mixing experiences the influence of the Earth's magnetic field and has offered some way of explaining behavioural observations such as light-dependence, inclination aspect and resonance effects of the avian compass.

    “It is the singlet -triplet mixing that experiences the influence of the Earth's magnetic field and that has offered some way of explaining behavioural observations such as the light-dependence [94], inclination aspect [95] and resonance effects of the avian compass [96,97].”

    From The future of quantum biology (2018) · cites this paper as [96]

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Authors
Thalau, P., Ritz, T., Stapput, K., Wiltschko, R., & Wiltschko, W.
Affiliations
  • Goethe University Frankfurt (DE)
  • University of California, Irvine (US)
Corresponding author
Wiltschko, Roswitha
Venue
Naturwissenschaften
Published
2004-12-22
Volume
92
Issue
2
Pages
86-90
ISSN
  • 0028-1042 (ISSN-L)
  • 1432-1904
OpenAlex
W2052802999
Cited by
165
References
19
Citations by year
2026: 3 · 2025: 4 · 2024: 1 · 2023: 12 · 2022: 5 · 2021: 5 · 2020: 6 · 2019: 4 · 2018: 10 · 2017: 10 · 2016: 11 · 2015: 5 · 2014: 11 · 2013: 9 · 2012: 5
FWCI
5.75
Type
journal article
Language
en
Open access
closed
Locations
  • Die Naturwissenschaften (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Electromagnetic Fields and Biological Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Geomagnetism and Paleomagnetism Studies
  • Physical Sciences › Environmental Science › Ecology › Avian ecology and behavior
Keywords
magnetic compass orientation, migratory birds, European robin, Erithacus rubecula, magnetoreception, radical pair mechanism, high-frequency magnetic field, geomagnetic field, spring and autumn migration
MeSH terms
Animals, Europe, Germany, Magnetics, Orientation, Oscillometry, Seasons, Songbirds, Animal Migration

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