Document Detail


Light-dependent magnetoreception in birds: the effect of intensity of 565-nm green light.
MedLine Citation:
PMID:  11013890     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In a previous study, Australian silvereyes tested in autumn under monochromatic 565-nm green light at intensities of 2.1 and 7.5 mW m-2 preferred their normal northerly migratory direction, whereas they showed a significantly different tendency towards northwest at 15.0 mW m-2. Repeating these experiments in spring with silvereyes migrating southward, we again observed well-oriented tendencies in the migratory direction at 2.1 and 7.5 mW m-2. At 15.0 mW m-2, however, the birds once more preferred northwesterly directions, i.e. their response under this condition proved to be independent of the migratory direction. This contradicts the interpretation that monochromatic green light of this high intensity leads to a rotation of compass information; instead, it appears to produce sensory input that causes birds to give up their migratory direction in favor of a fixed direction of as yet unknown origin.
Authors:
W Wiltschko; R Wiltschko; U Munro
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Die Naturwissenschaften     Volume:  87     ISSN:  0028-1042     ISO Abbreviation:  Naturwissenschaften     Publication Date:  2000 Aug 
Date Detail:
Created Date:  2000-10-17     Completed Date:  2000-10-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0400767     Medline TA:  Naturwissenschaften     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  366-9     Citation Subset:  IM    
Affiliation:
Fachbereich Biologie, Zoologie, der J.W.Goethe-Universität Frankfurt a.M, Germany. wiltschko@zoology.uni-frankfurt.de
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MeSH Terms
Descriptor/Qualifier:
Animals
Australia
Behavior, Animal / physiology*,  radiation effects
Birds / physiology*
Flight, Animal / physiology*
Light*
Lighting
Magnetics*
Orientation
Seasons

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