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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ftpubmed:oai:pubmedcentral.nih.gov:6684983 2023-05-15T15:27:56+02:00 Tidal drift removes the need for area-restricted search in foraging Atlantic puffins Bennison, Ashley Quinn, John L. Debney, Alison Jessopp, Mark 2019-07 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6684983/ http://www.ncbi.nlm.nih.gov/pubmed/31288687 https://doi.org/10.1098/rsbl.2019.0208 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6684983/ http://www.ncbi.nlm.nih.gov/pubmed/31288687 http://dx.doi.org/10.1098/rsbl.2019.0208 © 2019 The Author(s) http://royalsocietypublishing.org/licence Published by the Royal Society. All rights reserved. Biol Lett Marine Biology Text 2019 ftpubmed https://doi.org/10.1098/rsbl.2019.0208 2020-07-05T00:25:40Z 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. Text Atlantic puffin fratercula Fratercula arctica PubMed Central (PMC) Levy ENVELOPE(-66.567,-66.567,-66.320,-66.320) Biology Letters 15 7 20190208 |
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Marine Biology |
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Marine Biology Bennison, Ashley Quinn, John L. Debney, Alison Jessopp, Mark Tidal drift removes the need for area-restricted search in foraging Atlantic puffins |
topic_facet |
Marine Biology |
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. |
format |
Text |
author |
Bennison, Ashley Quinn, John L. Debney, Alison Jessopp, Mark |
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://www.ncbi.nlm.nih.gov/pmc/articles/PMC6684983/ http://www.ncbi.nlm.nih.gov/pubmed/31288687 https://doi.org/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 |
Biol Lett |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6684983/ http://www.ncbi.nlm.nih.gov/pubmed/31288687 http://dx.doi.org/10.1098/rsbl.2019.0208 |
op_rights |
© 2019 The Author(s) http://royalsocietypublishing.org/licence Published by the Royal Society. All rights reserved. |
op_doi |
https://doi.org/10.1098/rsbl.2019.0208 |
container_title |
Biology Letters |
container_volume |
15 |
container_issue |
7 |
container_start_page |
20190208 |
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1766358326827810816 |