Tidal drift removes the need for area-restricted search in foraging Atlantic puffins
Understanding how animals forage is a central objective in ecology. Theory suggests that where food is uniformly distributed, Brownian movement ensures the maximum prey encounter rate, but when prey is patchy, the optimal strategy resembles a Lévy walk where area-restricted search (ARS) is intersper...
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crroyalsociety:10.1098/rsbl.2019.0208 2024-06-02T08:03:14+00:00 Tidal drift removes the need for area-restricted search in foraging Atlantic puffins Bennison, Ashley Quinn, John L. Debney, Alison Jessopp, Mark Irish Research Council Zoological Society of London 2019 http://dx.doi.org/10.1098/rsbl.2019.0208 https://royalsocietypublishing.org/doi/pdf/10.1098/rsbl.2019.0208 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsbl.2019.0208 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Biology Letters volume 15, issue 7, page 20190208 ISSN 1744-9561 1744-957X journal-article 2019 crroyalsociety https://doi.org/10.1098/rsbl.2019.0208 2024-05-07T14:16:10Z Understanding how animals forage is a central objective in ecology. Theory suggests that where food is uniformly distributed, Brownian movement ensures the maximum prey encounter rate, but when prey is patchy, the optimal strategy resembles a Lévy walk where area-restricted search (ARS) is interspersed with commuting between prey patches. Such movement appears ubiquitous in high trophic-level marine predators. Here, we report foraging and diving behaviour in a seabird with a high cost of flight, the Atlantic puffin ( Fratercula arctica ), and report a clear lack of Brownian or Levy flight and associated ARS. Instead, puffins foraged using tides to transport them through their feeding grounds. Energetic models suggest the cost of foraging trips using the drift strategy is 28–46% less than flying between patches. We suggest such alternative movement strategies are habitat-specific, but likely to be far more widespread than currently thought. Article in Journal/Newspaper Atlantic puffin fratercula Fratercula arctica The Royal Society Levy ENVELOPE(-66.567,-66.567,-66.320,-66.320) Biology Letters 15 7 20190208 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Understanding how animals forage is a central objective in ecology. Theory suggests that where food is uniformly distributed, Brownian movement ensures the maximum prey encounter rate, but when prey is patchy, the optimal strategy resembles a Lévy walk where area-restricted search (ARS) is interspersed with commuting between prey patches. Such movement appears ubiquitous in high trophic-level marine predators. Here, we report foraging and diving behaviour in a seabird with a high cost of flight, the Atlantic puffin ( Fratercula arctica ), and report a clear lack of Brownian or Levy flight and associated ARS. Instead, puffins foraged using tides to transport them through their feeding grounds. Energetic models suggest the cost of foraging trips using the drift strategy is 28–46% less than flying between patches. We suggest such alternative movement strategies are habitat-specific, but likely to be far more widespread than currently thought. |
author2 |
Irish Research Council Zoological Society of London |
format |
Article in Journal/Newspaper |
author |
Bennison, Ashley Quinn, John L. Debney, Alison Jessopp, Mark |
spellingShingle |
Bennison, Ashley Quinn, John L. Debney, Alison Jessopp, Mark Tidal drift removes the need for area-restricted search in foraging Atlantic puffins |
author_facet |
Bennison, Ashley Quinn, John L. Debney, Alison Jessopp, Mark |
author_sort |
Bennison, Ashley |
title |
Tidal drift removes the need for area-restricted search in foraging Atlantic puffins |
title_short |
Tidal drift removes the need for area-restricted search in foraging Atlantic puffins |
title_full |
Tidal drift removes the need for area-restricted search in foraging Atlantic puffins |
title_fullStr |
Tidal drift removes the need for area-restricted search in foraging Atlantic puffins |
title_full_unstemmed |
Tidal drift removes the need for area-restricted search in foraging Atlantic puffins |
title_sort |
tidal drift removes the need for area-restricted search in foraging atlantic puffins |
publisher |
The Royal Society |
publishDate |
2019 |
url |
http://dx.doi.org/10.1098/rsbl.2019.0208 https://royalsocietypublishing.org/doi/pdf/10.1098/rsbl.2019.0208 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsbl.2019.0208 |
long_lat |
ENVELOPE(-66.567,-66.567,-66.320,-66.320) |
geographic |
Levy |
geographic_facet |
Levy |
genre |
Atlantic puffin fratercula Fratercula arctica |
genre_facet |
Atlantic puffin fratercula Fratercula arctica |
op_source |
Biology Letters volume 15, issue 7, page 20190208 ISSN 1744-9561 1744-957X |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsbl.2019.0208 |
container_title |
Biology Letters |
container_volume |
15 |
container_issue |
7 |
container_start_page |
20190208 |
_version_ |
1800747706128269312 |