| Night-time neuronal activation of Cluster N in a day- and night-migrating songbird. | |
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MedLine Citation:
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PMID: 20618826 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Magnetic compass orientation in a night-migratory songbird requires that Cluster N, a cluster of forebrain regions, is functional. Cluster N, which receives input from the eyes via the thalamofugal pathway, shows high neuronal activity in night-migrants performing magnetic compass-guided behaviour at night, whereas no activation is observed during the day, and covering up the birds' eyes strongly reduces neuronal activation. These findings suggest that Cluster N processes light-dependent magnetic compass information in night-migrating songbirds. The aim of this study was to test if Cluster N is active during daytime migration. We used behavioural molecular mapping based on ZENK activation to investigate if Cluster N is active in the meadow pipit (Anthus pratensis), a day- and night-migratory species. We found that Cluster N of meadow pipits shows high neuronal activity under dim-light at night, but not under full room-light conditions during the day. These data suggest that, in day- and night-migratory meadow pipits, the light-dependent magnetic compass, which requires an active Cluster N, may only be used during night-time, whereas another magnetosensory mechanism and/or other reference system(s), like the sun or polarized light, may be used as primary orientation cues during the day. |
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Authors:
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Manuela Zapka; Dominik Heyers; Miriam Liedvogel; Erich D Jarvis; Henrik Mouritsen |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't Date: 2010-07-06 |
Journal Detail:
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Title: The European journal of neuroscience Volume: 32 ISSN: 1460-9568 ISO Abbreviation: Eur. J. Neurosci. Publication Date: 2010 Aug |
Date Detail:
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Created Date: 2010-08-19 Completed Date: 2010-11-30 Revised Date: 2011-08-04 |
Medline Journal Info:
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Nlm Unique ID: 8918110 Medline TA: Eur J Neurosci Country: France |
Other Details:
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Languages: eng Pagination: 619-24 Citation Subset: IM |
Affiliation:
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AG Neurosensorik, Institut für Biologie und Umweltwissenschaften, University of Oldenburg, D-26111 Oldenburg, Germany. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animal Migration
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physiology* Animals Behavior, Animal / physiology Cues Darkness* Early Growth Response Protein 1 / genetics, metabolism Gene Expression Regulation Light* Magnetics Neurons / cytology, physiology* Orientation / physiology Photic Stimulation Songbirds* / anatomy & histology, physiology |
| Grant Support | |
ID/Acronym/Agency:
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R01 DC007218-01A1/DC/NIDCD NIH HHS; R01 DC007218-02/DC/NIDCD NIH HHS; R01 DC007218-03/DC/NIDCD NIH HHS; R01 DC007218-04/DC/NIDCD NIH HHS; R01 DC007218-05/DC/NIDCD NIH HHS; R01DC007218/DC/NIDCD NIH HHS; //Howard Hughes Medical Institute |
| Chemical | |
Reg. No./Substance:
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0/Early Growth Response Protein 1 |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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