Simulating transoceanic migrations of young loggerhead sea turtles: merging magnetic navigation behavior with an ocean circulation model

The Journal of Experimental Biology
Nathan F PutmanKenneth J Lohmann

Abstract

Young loggerhead sea turtles (Caretta caretta) from eastern Florida, USA, undertake a transoceanic migration in which they gradually circle the Sargasso Sea before returning to the North American coast. Loggerheads possess a 'magnetic map' in which regional magnetic fields elicit changes in swimming direction along the migratory pathway. In some geographic areas, however, ocean currents move more rapidly than young turtles can swim. Thus, the degree to which turtles can control their migratory movements has remained unclear. In this study, the movements of young turtles were simulated within a high-resolution ocean circulation model using several different behavioral scenarios, including one in which turtles drifted passively and others in which turtles swam briefly in accordance with experimentally derived data on magnetic navigation. Results revealed that small amounts of oriented swimming in response to regional magnetic fields profoundly affected migratory routes and endpoints. Turtles that engaged in directed swimming for as little as 1-3 h per day were 43-187% more likely than passive drifters to reach the Azores, a productive foraging area frequented by Florida loggerheads. They were also more likely to remain within war...Continue Reading

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Citations

Mar 7, 2014·Proceedings. Biological Sciences·Katherine L MansfieldJiangang Luo
Jan 24, 2014·Journal of the Royal Society, Interface·Eugenia Naro-MacielEleanor J Sterling
Apr 8, 2014·Proceedings of the National Academy of Sciences of the United States of America·R Andrew GoodwinMark Timko
Jul 25, 2014·Journal of the Royal Society, Interface·Nathan F PutmanDavid L G Noakes
Oct 24, 2014·Proceedings. Biological Sciences·Rebecca ScottChristophe Eizaguirre
Jan 26, 2013·Journal of the Royal Society, Interface·Nathan F Putman, Ruoying He
Aug 16, 2013·Biology Letters·Nathan F PutmanPhilippe Verley
Aug 16, 2013·Proceedings. Biological Sciences·Nathan F Putman, Eugenia Naro-Maciel
Jan 27, 2015·Current Biology : CB·Sabrina FossetteGraeme Clive Hays
Aug 16, 2014·Journal of Fish Biology·Y KawabataK Soyano
Jul 16, 2015·Integrative and Comparative Biology·Jayne M GardinerRobert E Hueter
Apr 19, 2015·Integrative and Comparative Biology·Nathan F Putman
Apr 14, 2015·Current Biology : CB·Nathan F Putman, Katherine L Mansfield
Feb 11, 2014·Current Biology : CB·Nathan F PutmanDavid L G Noakes
Jun 3, 2016·Proceedings. Biological Sciences·D K BriscoeL B Crowder
Nov 6, 2015·Journal of the Royal Society, Interface·Kevin J Painter, Thomas Hillen
Dec 16, 2016·Proceedings. Biological Sciences·Nathan F PutmanKatherine L Mansfield
May 16, 2018·Bioinspiration & Biomimetics·Brian K Taylor
Dec 8, 2017·Proceedings. Biological Sciences·Katherine L MansfieldYonat Swimmer
Dec 25, 2015·Biology Letters·Nathan F PutmanPhilippe Verley
Oct 21, 2016·Global Change Biology·François AscaniT Todd Jones
Sep 4, 2019·Bioinspiration & Biomimetics·Brian K Taylor, Sabrina Corbin
Aug 30, 2019·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·C BainbridgeA G Vidal-Gadea
Oct 19, 2019·Ecology and Evolution·Mayeul DalleauVolker Grimm
Feb 23, 2020·Scientific Reports·J M GonzálezM J Pereira
Jul 1, 2017·Biological cybernetics·Brian K Taylor
Jun 3, 2017·Royal Society Open Science·Natalie WildermannMark Hamann
Feb 8, 2020·The Journal of Experimental Biology·Nathan F PutmanAndrew H Dittman
Mar 13, 2019·Movement Ecology·Maxime Lalire, Philippe Gaspar
Jan 7, 2021·Journal of the Royal Society, Interface·Brian K TaylorJesse Granger
Feb 25, 2021·Journal of the Royal Society, Interface·Cheryl S HarrisonMatthew C Long
Apr 4, 2015·The Journal of Experimental Biology·Nathan F PutmanKenneth J Lohmann

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