| Differential effects of magnetic pulses on the orientation of naturally migrating birds. | |
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MedLine Citation:
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PMID: 20453067 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In migratory passerine birds, strong magnetic pulses are thought to be diagnostic of the remagnetization of iron minerals in a putative sensory system contained in the beak. Previous evidence suggests that while such a magnetic pulse affects the orientation of migratory birds in orientation cages, no effect was present when pulse-treated birds were tested in natural migration. Here we show that two migrating passerine birds treated with a strong magnetic pulse, designed to alter the magnetic sense, migrated in a direction that differed significantly from that of controls when tested in natural conditions. The orientation of treated birds was different depending on the alignment of the pulse with respect to the magnetic field. These results can aid in advancing understanding of how the putative iron-mineral-based receptors found in birds' beaks may be used to detect and signal the intensity and/or direction of the Earth's magnetic field. |
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Authors:
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Richard A Holland |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. Date: 2010-05-07 |
Journal Detail:
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Title: Journal of the Royal Society, Interface / the Royal Society Volume: 7 ISSN: 1742-5662 ISO Abbreviation: J R Soc Interface Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-09-29 Completed Date: 2011-02-11 Revised Date: 2011-11-07 |
Medline Journal Info:
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Nlm Unique ID: 101217269 Medline TA: J R Soc Interface Country: England |
Other Details:
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Languages: eng Pagination: 1617-25 Citation Subset: IM |
Affiliation:
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Department of Migration and Immunoecology, Max Planck Institute for Ornithology, Radolfzell, Germany. rholland@orn.mpg.de |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animal Migration
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physiology* Animals Magnetics* Passeriformes / physiology* Physical Stimulation |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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