Horizontal-vertical movement relationships: Adélie penguins forage continuously throughout provisioning trips
BACKGROUND: Diving marine predators forage in a three-dimensional environment, adjusting their horizontal and vertical movement behaviour in response to environmental conditions and the spatial distribution of prey. Expectations regarding horizontal-vertical movements are derived from optimal foragi...
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ftpubmed:oai:pubmedcentral.nih.gov:8393751 2023-05-15T15:41:12+02:00 Horizontal-vertical movement relationships: Adélie penguins forage continuously throughout provisioning trips Riaz, Javed Bestley, Sophie Wotherspoon, Simon Emmerson, Louise 2021-08-26 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8393751/ http://www.ncbi.nlm.nih.gov/pubmed/34446104 https://doi.org/10.1186/s40462-021-00280-8 en eng BioMed Central http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8393751/ http://www.ncbi.nlm.nih.gov/pubmed/34446104 http://dx.doi.org/10.1186/s40462-021-00280-8 © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. CC0 PDM CC-BY Mov Ecol Research Text 2021 ftpubmed https://doi.org/10.1186/s40462-021-00280-8 2021-09-05T00:48:41Z BACKGROUND: Diving marine predators forage in a three-dimensional environment, adjusting their horizontal and vertical movement behaviour in response to environmental conditions and the spatial distribution of prey. Expectations regarding horizontal-vertical movements are derived from optimal foraging theories, however, inconsistent empirical findings across a range of taxa suggests these behavioural assumptions are not universally applicable. METHODS: Here, we examined how changes in horizontal movement trajectories corresponded with diving behaviour and marine environmental conditions for a ubiquitous Southern Ocean predator, the Adélie penguin. Integrating extensive telemetry-based movement and environmental datasets for chick-rearing Adélie penguins at Béchervaise Island, we tested the relationships between horizontal move persistence (continuous scale indicating low [‘resident’] to high [‘directed’] movement autocorrelation), vertical dive effort and environmental variables. RESULTS: Penguins dived continuously over the course of their foraging trips and lower horizontal move persistence corresponded with less intense foraging activity, likely indicative of resting behaviour. This challenges the traditional interpretation of horizontal-vertical movement relationships based on optimal foraging models, which assumes increased residency within an area translates to increased foraging activity. Movement was also influenced by different environmental conditions during the two stages of chick-rearing: guard and crèche. These differences highlight the strong seasonality of foraging habitat for chick-rearing Adélie penguins at Béchervaise Island. CONCLUSIONS: Our findings advance our understanding of the foraging behaviour for this marine predator and demonstrates the importance of integrating spatial location and behavioural data before inferring habitat use. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s40462-021-00280-8. Text Béchervaise Island Southern Ocean PubMed Central (PMC) Béchervaise Island ENVELOPE(62.818,62.818,-67.591,-67.591) Southern Ocean Movement Ecology 9 1 |
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ftpubmed |
language |
English |
topic |
Research |
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Research Riaz, Javed Bestley, Sophie Wotherspoon, Simon Emmerson, Louise Horizontal-vertical movement relationships: Adélie penguins forage continuously throughout provisioning trips |
topic_facet |
Research |
description |
BACKGROUND: Diving marine predators forage in a three-dimensional environment, adjusting their horizontal and vertical movement behaviour in response to environmental conditions and the spatial distribution of prey. Expectations regarding horizontal-vertical movements are derived from optimal foraging theories, however, inconsistent empirical findings across a range of taxa suggests these behavioural assumptions are not universally applicable. METHODS: Here, we examined how changes in horizontal movement trajectories corresponded with diving behaviour and marine environmental conditions for a ubiquitous Southern Ocean predator, the Adélie penguin. Integrating extensive telemetry-based movement and environmental datasets for chick-rearing Adélie penguins at Béchervaise Island, we tested the relationships between horizontal move persistence (continuous scale indicating low [‘resident’] to high [‘directed’] movement autocorrelation), vertical dive effort and environmental variables. RESULTS: Penguins dived continuously over the course of their foraging trips and lower horizontal move persistence corresponded with less intense foraging activity, likely indicative of resting behaviour. This challenges the traditional interpretation of horizontal-vertical movement relationships based on optimal foraging models, which assumes increased residency within an area translates to increased foraging activity. Movement was also influenced by different environmental conditions during the two stages of chick-rearing: guard and crèche. These differences highlight the strong seasonality of foraging habitat for chick-rearing Adélie penguins at Béchervaise Island. CONCLUSIONS: Our findings advance our understanding of the foraging behaviour for this marine predator and demonstrates the importance of integrating spatial location and behavioural data before inferring habitat use. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s40462-021-00280-8. |
format |
Text |
author |
Riaz, Javed Bestley, Sophie Wotherspoon, Simon Emmerson, Louise |
author_facet |
Riaz, Javed Bestley, Sophie Wotherspoon, Simon Emmerson, Louise |
author_sort |
Riaz, Javed |
title |
Horizontal-vertical movement relationships: Adélie penguins forage continuously throughout provisioning trips |
title_short |
Horizontal-vertical movement relationships: Adélie penguins forage continuously throughout provisioning trips |
title_full |
Horizontal-vertical movement relationships: Adélie penguins forage continuously throughout provisioning trips |
title_fullStr |
Horizontal-vertical movement relationships: Adélie penguins forage continuously throughout provisioning trips |
title_full_unstemmed |
Horizontal-vertical movement relationships: Adélie penguins forage continuously throughout provisioning trips |
title_sort |
horizontal-vertical movement relationships: adélie penguins forage continuously throughout provisioning trips |
publisher |
BioMed Central |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8393751/ http://www.ncbi.nlm.nih.gov/pubmed/34446104 https://doi.org/10.1186/s40462-021-00280-8 |
long_lat |
ENVELOPE(62.818,62.818,-67.591,-67.591) |
geographic |
Béchervaise Island Southern Ocean |
geographic_facet |
Béchervaise Island Southern Ocean |
genre |
Béchervaise Island Southern Ocean |
genre_facet |
Béchervaise Island Southern Ocean |
op_source |
Mov Ecol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8393751/ http://www.ncbi.nlm.nih.gov/pubmed/34446104 http://dx.doi.org/10.1186/s40462-021-00280-8 |
op_rights |
© The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
op_rightsnorm |
CC0 PDM CC-BY |
op_doi |
https://doi.org/10.1186/s40462-021-00280-8 |
container_title |
Movement Ecology |
container_volume |
9 |
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1 |
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1766374087651753984 |