Literaturdatenbank
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Lohmann, K. J., Cain, S. D., Dodge, S. A., & Lohmann, C. M. F. (2001). Regional magnetic fields as navigational markers for sea turtles. Science, 294(5541), 364–366.
Added by: Sarina Wunderlich (25 Jun 2011 12:41:44 UTC) |
| Resource type: Journal Article DOI: 10.1126/science.1064557 BibTeX citation key: Lohmann2001 View all bibliographic details  |
Categories: General Keywords: Caretta, Caretta caretta, Cheloniidae, Physiologie = physiology, Schildkröten = turtles + tortoises, Verhalten = ethology Creators: Cain, Dodge, Lohmann, Lohmann Collection: Science |
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| Abstract |
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Young loggerhead sea turtles (Caretta caretta) from eastern Florida undertake a transoceanic migration in which they gradually circle the north Atlantic Ocean before returning to the North American coast. Here we report that hatchling loggerheads, when exposed to magnetic fields replicating those found in three widely separated oceanic regions, responded by swimming in directions that would, in each case, help keep turtles within the currents of the North Atlantic gyre and facilitate movement along the migratory pathway. These results imply that young loggerheads have a guidance system in which regional magnetic fields function as navigational markers and elicit changes in swimming direction at crucial geographic boundaries.
Added by: Sarina Wunderlich |