The DOI matches its Crossref record; 29 of the 30 references it cites were found in a registry or an index.
Resonance effects indicate a radical-pair mechanism for avian magnetic compass
Abstract
Migratory birds are known to use the geomagnetic field as a source of compass information. There are two competing hypotheses for the primary process underlying the avian magnetic compass, one involving magnetite, the other a magnetically sensitive chemical reaction. Here we show that oscillating magnetic fields disrupt the magnetic orientation behaviour of migratory birds. Robins were disoriented when exposed to a vertically aligned broadband (0.1-10 MHz) or a single-frequency (7-MHz) field in addition to the geomagnetic field. Moreover, in the 7-MHz oscillating field, this effect depended on the angle between the oscillating and the geomagnetic fields. The birds exhibited seasonally appropriate migratory orientation when the oscillating field was parallel to the geomagnetic field, but were disoriented when it was presented at a 24 degrees or 48 degrees angle. These results are consistent with a resonance effect on singlet-triplet transitions and suggest a magnetic compass based on a radical-pair mechanism.
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“In recent years, quantum biology too has been benefitting considerably from the refinement of experimental tools that are beginning to provide direct access to the observation of quantum dynamics in biological systems [11-14]”
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Metadata
- Authors
- Ritz, T., Thalau, P., Phillips, J. B., Wiltschko, R., & Wiltschko, W.
- Affiliations
- University of California, Irvine (US)
- Goethe University Frankfurt (DE)
- Virginia Tech (US)
- Corresponding author
- Ritz, Thorsten
- Venue
- Nature
- Published
- 2004-05
- Volume
- 429
- Issue
- 6988
- Pages
- 177-180
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W1999373473
- Cited by
- 617
- References
- 30
- Citations by year
- 2026: 22 · 2025: 30 · 2024: 18 · 2023: 35 · 2022: 24 · 2021: 20 · 2020: 23 · 2019: 27 · 2018: 20 · 2017: 33 · 2016: 37 · 2015: 26 · 2014: 52 · 2013: 27 · 2012: 28
- FWCI
- 18.66
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Electromagnetic Fields and Biological Effects
- Physical Sciences › Earth and Planetary Sciences › Geophysics › Geomagnetism and Paleomagnetism Studies
- Physical Sciences › Environmental Science › Ecology › Avian ecology and behavior
- Keywords
- radical pair mechanism, migratory birds, geomagnetic field, alternating magnetic field, magnetite, singlet-triplet transitions, magnetic resonance, robins, magnetic orientation, seasonal migration, disorientation
- MeSH terms
- Animals, Europe, Geography, Iron, Magnetics, Models, Biological, Oxides, Songbirds, Animal Migration, Ferrosoferric Oxide
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