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Author (up) Froy, O.; Gotter, A.L.; Casselman, A.L.; Reppert, S.M. url  doi
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  Title Illuminating the circadian clock in monarch butterfly migration Type Journal Article
  Year 2003 Publication Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 300 Issue 5623 Pages 1303-1305  
  Keywords Animals; *Animal Migration; Biological Clocks/*physiology; Butterflies/genetics/*physiology; Circadian Rhythm/*physiology; Cloning, Molecular; Darkness; Flight, Animal; Light; Nuclear Proteins/genetics/physiology; Period Circadian Proteins; Solar System; Ultraviolet Rays; butterflies; monarch  
  Abstract Migratory monarch butterflies use a time-compensated Sun compass to navigate to their overwintering grounds in Mexico. Here, we report that constant light, which disrupts circadian clock function at both the behavioral and molecular levels in monarchs, also disrupts the time-compensated component of flight navigation. We further show that ultraviolet light is important for flight navigation but is not required for photic entrainment of circadian rhythms. Tracing these distinct light-input pathways into the brain should aid our understanding of the clock-compass mechanisms necessary for successful migration.  
  Address Department of Neurobiology, University of Massachusetts Medical School, LRB-728, 364 Plantation Street, Worcester, MA 01605, USA  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0036-8075 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:12764200 Approved no  
  Call Number IDA @ john @ Serial 1072  
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