Behaviourally mediated predation avoidance in penguin prey:in situevidence from animal-borne camera loggers
Predator dietary studies often assume that diet is reflective of the diversity and relative abundance of their prey. This interpretation ignores species-specific behavioural adaptations in prey that could influence prey capture. Here, we develop and describe a scalable biologging protocol, using ani...
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crroyalsociety:10.1098/rsos.171449 2024-09-15T18:07:26+00:00 Behaviourally mediated predation avoidance in penguin prey:in situevidence from animal-borne camera loggers Handley, Jonathan M. Thiebault, Andréa Stanworth, Andrew Schutt, David Pistorius, Pierre John Cheek Trust Nelson Mandela Metropolitan University Research Capacity Department Rufford Foundation Falkland Islands Environmental Planning Department 2018 http://dx.doi.org/10.1098/rsos.171449 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.171449 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.171449 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Royal Society Open Science volume 5, issue 8, page 171449 ISSN 2054-5703 journal-article 2018 crroyalsociety https://doi.org/10.1098/rsos.171449 2024-08-19T04:24:50Z Predator dietary studies often assume that diet is reflective of the diversity and relative abundance of their prey. This interpretation ignores species-specific behavioural adaptations in prey that could influence prey capture. Here, we develop and describe a scalable biologging protocol, using animal-borne camera loggers, to elucidate the factors influencing prey capture by a seabird, the gentoo penguin ( Pygoscelis papua ). From the video evidence, we show, to our knowledge for the first time, that aggressive behavioural defence mechanisms by prey can deter prey capture by a seabird. Furthermore, we provide evidence demonstrating that these birds, which were observed hunting solitarily, target prey when they are most discernible. Specifically, birds targeted prey primarily while ascending and when prey were not tightly clustered. In conclusion, we show that prey behaviour can significantly influence trophic coupling in marine systems because despite prey being present, it is not always targeted. Thus, these predator–prey relationships should be accounted for in studies using marine top predators as samplers of mid- to lower trophic-level species. Article in Journal/Newspaper Gentoo penguin Pygoscelis papua The Royal Society Royal Society Open Science 5 8 171449 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Predator dietary studies often assume that diet is reflective of the diversity and relative abundance of their prey. This interpretation ignores species-specific behavioural adaptations in prey that could influence prey capture. Here, we develop and describe a scalable biologging protocol, using animal-borne camera loggers, to elucidate the factors influencing prey capture by a seabird, the gentoo penguin ( Pygoscelis papua ). From the video evidence, we show, to our knowledge for the first time, that aggressive behavioural defence mechanisms by prey can deter prey capture by a seabird. Furthermore, we provide evidence demonstrating that these birds, which were observed hunting solitarily, target prey when they are most discernible. Specifically, birds targeted prey primarily while ascending and when prey were not tightly clustered. In conclusion, we show that prey behaviour can significantly influence trophic coupling in marine systems because despite prey being present, it is not always targeted. Thus, these predator–prey relationships should be accounted for in studies using marine top predators as samplers of mid- to lower trophic-level species. |
author2 |
John Cheek Trust Nelson Mandela Metropolitan University Research Capacity Department Rufford Foundation Falkland Islands Environmental Planning Department |
format |
Article in Journal/Newspaper |
author |
Handley, Jonathan M. Thiebault, Andréa Stanworth, Andrew Schutt, David Pistorius, Pierre |
spellingShingle |
Handley, Jonathan M. Thiebault, Andréa Stanworth, Andrew Schutt, David Pistorius, Pierre Behaviourally mediated predation avoidance in penguin prey:in situevidence from animal-borne camera loggers |
author_facet |
Handley, Jonathan M. Thiebault, Andréa Stanworth, Andrew Schutt, David Pistorius, Pierre |
author_sort |
Handley, Jonathan M. |
title |
Behaviourally mediated predation avoidance in penguin prey:in situevidence from animal-borne camera loggers |
title_short |
Behaviourally mediated predation avoidance in penguin prey:in situevidence from animal-borne camera loggers |
title_full |
Behaviourally mediated predation avoidance in penguin prey:in situevidence from animal-borne camera loggers |
title_fullStr |
Behaviourally mediated predation avoidance in penguin prey:in situevidence from animal-borne camera loggers |
title_full_unstemmed |
Behaviourally mediated predation avoidance in penguin prey:in situevidence from animal-borne camera loggers |
title_sort |
behaviourally mediated predation avoidance in penguin prey:in situevidence from animal-borne camera loggers |
publisher |
The Royal Society |
publishDate |
2018 |
url |
http://dx.doi.org/10.1098/rsos.171449 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.171449 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.171449 |
genre |
Gentoo penguin Pygoscelis papua |
genre_facet |
Gentoo penguin Pygoscelis papua |
op_source |
Royal Society Open Science volume 5, issue 8, page 171449 ISSN 2054-5703 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsos.171449 |
container_title |
Royal Society Open Science |
container_volume |
5 |
container_issue |
8 |
container_start_page |
171449 |
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1810444811671437312 |