Supplementary material from "Beaked whales and state-dependent decision-making: how does body condition affect the trade-off between foraging and predator avoidance?"
Body condition is central to how animals balance foraging with predator-avoidance—a trade-off that fundamentally affects animal fitness. Animals in poor condition accept greater predation risk to satisfy current foraging ‘needs’, while those in good condition may be more risk averse to protect futur...
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ftdatacite:10.6084/m9.figshare.c.5768133.v1 2023-05-15T16:57:03+02:00 Supplementary material from "Beaked whales and state-dependent decision-making: how does body condition affect the trade-off between foraging and predator avoidance?" Siegal, Eilidh Hooker, Sascha K. Isojunno, Saana Miller, Patrick J. O. 2021 https://dx.doi.org/10.6084/m9.figshare.c.5768133.v1 https://rs.figshare.com/collections/Supplementary_material_from_Beaked_whales_and_state-dependent_decision-making_how_does_body_condition_affect_the_trade-off_between_foraging_and_predator_avoidance_/5768133/1 unknown The Royal Society https://dx.doi.org/10.1098/rspb.2021.2539 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY 60801 Animal Behaviour FOS Biological sciences article Collection 2021 ftdatacite https://doi.org/10.6084/m9.figshare.c.5768133.v1 https://doi.org/10.1098/rspb.2021.2539 2022-02-09T11:33:27Z Body condition is central to how animals balance foraging with predator-avoidance—a trade-off that fundamentally affects animal fitness. Animals in poor condition accept greater predation risk to satisfy current foraging ‘needs’, while those in good condition may be more risk averse to protect future ‘assets’. These state-dependent behavioural predictions can help interpret responses to human activities, but are little explored in marine animals. This study investigates the influence of body condition on how beaked whales trade-off foraging and predator-avoidance. Body density (indicating lipid-energy stores) was estimated for 15 foraging northern bottlenose whales tagged near Jan Mayen, Norway. Composite indices of foraging (diving and echolocation clicks) and anti-predation (long ascents, non-foraging dives and silent periods reducing predator eavesdropping) were negatively related. Experimental sonar exposures led to decreased foraging and increased risk aversion, confirming a foraging/perceived safety trade-off. However, lower lipid stores were not related to a decrease in predator-avoidance versus foraging, i.e. worse condition animals did not prioritize foraging. Individual differences (personalities) or reproductive context could offer alternative explanations for the observed state-behaviour relationships. This study provides evidence of foraging/predator-avoidance trade-offs in a marine top predator and demonstrates that animals in worse condition might not always take more risks. Article in Journal/Newspaper Jan Mayen DataCite Metadata Store (German National Library of Science and Technology) Norway Jan Mayen |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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topic |
60801 Animal Behaviour FOS Biological sciences |
spellingShingle |
60801 Animal Behaviour FOS Biological sciences Siegal, Eilidh Hooker, Sascha K. Isojunno, Saana Miller, Patrick J. O. Supplementary material from "Beaked whales and state-dependent decision-making: how does body condition affect the trade-off between foraging and predator avoidance?" |
topic_facet |
60801 Animal Behaviour FOS Biological sciences |
description |
Body condition is central to how animals balance foraging with predator-avoidance—a trade-off that fundamentally affects animal fitness. Animals in poor condition accept greater predation risk to satisfy current foraging ‘needs’, while those in good condition may be more risk averse to protect future ‘assets’. These state-dependent behavioural predictions can help interpret responses to human activities, but are little explored in marine animals. This study investigates the influence of body condition on how beaked whales trade-off foraging and predator-avoidance. Body density (indicating lipid-energy stores) was estimated for 15 foraging northern bottlenose whales tagged near Jan Mayen, Norway. Composite indices of foraging (diving and echolocation clicks) and anti-predation (long ascents, non-foraging dives and silent periods reducing predator eavesdropping) were negatively related. Experimental sonar exposures led to decreased foraging and increased risk aversion, confirming a foraging/perceived safety trade-off. However, lower lipid stores were not related to a decrease in predator-avoidance versus foraging, i.e. worse condition animals did not prioritize foraging. Individual differences (personalities) or reproductive context could offer alternative explanations for the observed state-behaviour relationships. This study provides evidence of foraging/predator-avoidance trade-offs in a marine top predator and demonstrates that animals in worse condition might not always take more risks. |
format |
Article in Journal/Newspaper |
author |
Siegal, Eilidh Hooker, Sascha K. Isojunno, Saana Miller, Patrick J. O. |
author_facet |
Siegal, Eilidh Hooker, Sascha K. Isojunno, Saana Miller, Patrick J. O. |
author_sort |
Siegal, Eilidh |
title |
Supplementary material from "Beaked whales and state-dependent decision-making: how does body condition affect the trade-off between foraging and predator avoidance?" |
title_short |
Supplementary material from "Beaked whales and state-dependent decision-making: how does body condition affect the trade-off between foraging and predator avoidance?" |
title_full |
Supplementary material from "Beaked whales and state-dependent decision-making: how does body condition affect the trade-off between foraging and predator avoidance?" |
title_fullStr |
Supplementary material from "Beaked whales and state-dependent decision-making: how does body condition affect the trade-off between foraging and predator avoidance?" |
title_full_unstemmed |
Supplementary material from "Beaked whales and state-dependent decision-making: how does body condition affect the trade-off between foraging and predator avoidance?" |
title_sort |
supplementary material from "beaked whales and state-dependent decision-making: how does body condition affect the trade-off between foraging and predator avoidance?" |
publisher |
The Royal Society |
publishDate |
2021 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.5768133.v1 https://rs.figshare.com/collections/Supplementary_material_from_Beaked_whales_and_state-dependent_decision-making_how_does_body_condition_affect_the_trade-off_between_foraging_and_predator_avoidance_/5768133/1 |
geographic |
Norway Jan Mayen |
geographic_facet |
Norway Jan Mayen |
genre |
Jan Mayen |
genre_facet |
Jan Mayen |
op_relation |
https://dx.doi.org/10.1098/rspb.2021.2539 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.5768133.v1 https://doi.org/10.1098/rspb.2021.2539 |
_version_ |
1766048309808463872 |