A little movement orientated to the geomagnetic field makes a big difference in strong flows
Whilst a range of animals have been shown to respond behaviourally to components of the Earth’s magnetic field, evidence of the value of this sensory perception for small animals advected by strong flows (wind/ocean currents) is equivocal. We added geomagnetic directional swimming behaviour for Nort...
Published in: | Marine Biology |
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2012
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Online Access: | https://eprints.soton.ac.uk/337042/ |
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ftsouthampton:oai:eprints.soton.ac.uk:337042 2023-07-30T04:05:24+02:00 A little movement orientated to the geomagnetic field makes a big difference in strong flows Scott, Rebecca Marsh, Robert Hays, Graeme C. 2012 https://eprints.soton.ac.uk/337042/ unknown Scott, Rebecca, Marsh, Robert and Hays, Graeme C. (2012) A little movement orientated to the geomagnetic field makes a big difference in strong flows. Marine Biology, 159 (3), 481-488. (doi:10.1007/s00227-011-1825-1 <http://dx.doi.org/10.1007/s00227-011-1825-1>). Article PeerReviewed 2012 ftsouthampton https://doi.org/10.1007/s00227-011-1825-1 2023-07-09T21:38:19Z Whilst a range of animals have been shown to respond behaviourally to components of the Earth’s magnetic field, evidence of the value of this sensory perception for small animals advected by strong flows (wind/ocean currents) is equivocal. We added geomagnetic directional swimming behaviour for North Atlantic loggerhead turtle hatchlings (Caretta caretta) into a high-resolution (1/4°) global general circulation ocean model to simulate 2,925-year-long hatchling trajectories comprising 355,875 locations. A little directional swimming (1–3 h per day) had a major impact on trajectories; simulated hatchlings travelled further south into warmer water. As a result, thermal elevation of hatchling metabolic rates was estimated to be between 63.3 and 114.5% after 220 days. We show that even small animals in strong flows can benefit from geomagnetic orientation and thus the potential implications of directional swimming for other taxa may be broad. Article in Journal/Newspaper North Atlantic University of Southampton: e-Prints Soton Marine Biology 159 3 481 488 |
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Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
unknown |
description |
Whilst a range of animals have been shown to respond behaviourally to components of the Earth’s magnetic field, evidence of the value of this sensory perception for small animals advected by strong flows (wind/ocean currents) is equivocal. We added geomagnetic directional swimming behaviour for North Atlantic loggerhead turtle hatchlings (Caretta caretta) into a high-resolution (1/4°) global general circulation ocean model to simulate 2,925-year-long hatchling trajectories comprising 355,875 locations. A little directional swimming (1–3 h per day) had a major impact on trajectories; simulated hatchlings travelled further south into warmer water. As a result, thermal elevation of hatchling metabolic rates was estimated to be between 63.3 and 114.5% after 220 days. We show that even small animals in strong flows can benefit from geomagnetic orientation and thus the potential implications of directional swimming for other taxa may be broad. |
format |
Article in Journal/Newspaper |
author |
Scott, Rebecca Marsh, Robert Hays, Graeme C. |
spellingShingle |
Scott, Rebecca Marsh, Robert Hays, Graeme C. A little movement orientated to the geomagnetic field makes a big difference in strong flows |
author_facet |
Scott, Rebecca Marsh, Robert Hays, Graeme C. |
author_sort |
Scott, Rebecca |
title |
A little movement orientated to the geomagnetic field makes a big difference in strong flows |
title_short |
A little movement orientated to the geomagnetic field makes a big difference in strong flows |
title_full |
A little movement orientated to the geomagnetic field makes a big difference in strong flows |
title_fullStr |
A little movement orientated to the geomagnetic field makes a big difference in strong flows |
title_full_unstemmed |
A little movement orientated to the geomagnetic field makes a big difference in strong flows |
title_sort |
little movement orientated to the geomagnetic field makes a big difference in strong flows |
publishDate |
2012 |
url |
https://eprints.soton.ac.uk/337042/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Scott, Rebecca, Marsh, Robert and Hays, Graeme C. (2012) A little movement orientated to the geomagnetic field makes a big difference in strong flows. Marine Biology, 159 (3), 481-488. (doi:10.1007/s00227-011-1825-1 <http://dx.doi.org/10.1007/s00227-011-1825-1>). |
op_doi |
https://doi.org/10.1007/s00227-011-1825-1 |
container_title |
Marine Biology |
container_volume |
159 |
container_issue |
3 |
container_start_page |
481 |
op_container_end_page |
488 |
_version_ |
1772817270295232512 |