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Unraveling navigational strategies in migratory insects

Merlin, Christine
Heinze, Stanley
Reppert, Steven M.
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UMass Chan Affiliations
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Journal Article
Publication Date
2012-04-01
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Abstract

Long-distance migration is a strategy some animals use to survive a seasonally changing environment. To reach favorable grounds, migratory animals have evolved sophisticated navigational mechanisms that rely on a map and compasses. In migratory insects, the existence of a map sense (sense of position) remains poorly understood, but recent work has provided new insights into the mechanisms some compasses use for maintaining a constant bearing during long-distance navigation. The best-studied directional strategy relies on a time-compensated sun compass, used by diurnal insects, for which neural circuits have begun to be delineated. Yet, a growing body of evidence suggests that migratory insects may also rely on other compasses that use night sky cues or the Earth's magnetic field. Those mechanisms are ripe for exploration.

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Curr Opin Neurobiol. 2012 Apr;22(2):353-61. Epub 2011 Dec 9. Link to article on publisher's site

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DOI
10.1016/j.conb.2011.11.009
PubMed ID
22154565
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