Modelling the impact of condition-dependent responses and lipid-store availability on the consequences of disturbance in a cetacean
Lipid-store body condition is fundamental to how animals cope with environmental fluctuations, including anthropogenic change. As it provides an energetic buffer, body condition is expected to influence risk-taking strategies, with both positive and negative relationships between body condition and...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9672687/ http://www.ncbi.nlm.nih.gov/pubmed/36415287 https://doi.org/10.1093/conphys/coac069 |
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ftpubmed:oai:pubmedcentral.nih.gov:9672687 2023-05-15T18:26:51+02:00 Modelling the impact of condition-dependent responses and lipid-store availability on the consequences of disturbance in a cetacean Burslem, Alec Isojunno, Saana Pirotta, Enrico Miller, Patrick J O 2022-11-17 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9672687/ http://www.ncbi.nlm.nih.gov/pubmed/36415287 https://doi.org/10.1093/conphys/coac069 en eng Oxford University Press http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9672687/ http://www.ncbi.nlm.nih.gov/pubmed/36415287 http://dx.doi.org/10.1093/conphys/coac069 © The Author(s) 2022. Published by Oxford University Press and the Society for Experimental Biology. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. CC-BY Conserv Physiol Research Article Text 2022 ftpubmed https://doi.org/10.1093/conphys/coac069 2022-11-27T01:35:43Z Lipid-store body condition is fundamental to how animals cope with environmental fluctuations, including anthropogenic change. As it provides an energetic buffer, body condition is expected to influence risk-taking strategies, with both positive and negative relationships between body condition and risk-taking posited in the literature. Individuals in good condition may take more risks due to state-dependent safety (‘ability-based’ explanation), or alternatively fewer risks due to asset protection and reduced need to undertake risky foraging (‘needs-based’ explanation). Such state-dependent responses could drive non-linear impacts of anthropogenic activities through feedback between body condition and behavioural disturbance. Here, we present a simple bioenergetic model that explicitly incorporates hypothetical body condition-dependent response strategies for a cetacean, the sperm whale. The model considered the consequences of state-dependent foraging cessation and availability of wax ester (WE) lipids for calf provisioning and female survival. We found strikingly different consequences of disturbance depending on strategy and WE availability scenarios. Compared with the null strategy, where responses to disturbance were independent of body condition, the needs-based strategy mitigated predicted reductions in provisioning by 10%–13%, while the ability-based strategy exaggerated reductions by 63%–113%. Lower WE availability resulted in more extreme outcomes because energy stores were smaller relative to the daily energy balance. In the 0% availability scenario, while the needs-based strategy reduced deaths by 100%, the ability-based strategy increased them by 335% relative to null and by 56% relative to the same strategy under the 5%–6.7% WE availability scenario. These results highlight that state-dependent disturbance responses and energy store availability could substantially impact the population consequences of disturbance. Our ability to set appropriate precautionary disturbance thresholds therefore ... Text Sperm whale PubMed Central (PMC) Conservation Physiology 10 1 |
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Research Article Burslem, Alec Isojunno, Saana Pirotta, Enrico Miller, Patrick J O Modelling the impact of condition-dependent responses and lipid-store availability on the consequences of disturbance in a cetacean |
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Research Article |
description |
Lipid-store body condition is fundamental to how animals cope with environmental fluctuations, including anthropogenic change. As it provides an energetic buffer, body condition is expected to influence risk-taking strategies, with both positive and negative relationships between body condition and risk-taking posited in the literature. Individuals in good condition may take more risks due to state-dependent safety (‘ability-based’ explanation), or alternatively fewer risks due to asset protection and reduced need to undertake risky foraging (‘needs-based’ explanation). Such state-dependent responses could drive non-linear impacts of anthropogenic activities through feedback between body condition and behavioural disturbance. Here, we present a simple bioenergetic model that explicitly incorporates hypothetical body condition-dependent response strategies for a cetacean, the sperm whale. The model considered the consequences of state-dependent foraging cessation and availability of wax ester (WE) lipids for calf provisioning and female survival. We found strikingly different consequences of disturbance depending on strategy and WE availability scenarios. Compared with the null strategy, where responses to disturbance were independent of body condition, the needs-based strategy mitigated predicted reductions in provisioning by 10%–13%, while the ability-based strategy exaggerated reductions by 63%–113%. Lower WE availability resulted in more extreme outcomes because energy stores were smaller relative to the daily energy balance. In the 0% availability scenario, while the needs-based strategy reduced deaths by 100%, the ability-based strategy increased them by 335% relative to null and by 56% relative to the same strategy under the 5%–6.7% WE availability scenario. These results highlight that state-dependent disturbance responses and energy store availability could substantially impact the population consequences of disturbance. Our ability to set appropriate precautionary disturbance thresholds therefore ... |
format |
Text |
author |
Burslem, Alec Isojunno, Saana Pirotta, Enrico Miller, Patrick J O |
author_facet |
Burslem, Alec Isojunno, Saana Pirotta, Enrico Miller, Patrick J O |
author_sort |
Burslem, Alec |
title |
Modelling the impact of condition-dependent responses and lipid-store availability on the consequences of disturbance in a cetacean |
title_short |
Modelling the impact of condition-dependent responses and lipid-store availability on the consequences of disturbance in a cetacean |
title_full |
Modelling the impact of condition-dependent responses and lipid-store availability on the consequences of disturbance in a cetacean |
title_fullStr |
Modelling the impact of condition-dependent responses and lipid-store availability on the consequences of disturbance in a cetacean |
title_full_unstemmed |
Modelling the impact of condition-dependent responses and lipid-store availability on the consequences of disturbance in a cetacean |
title_sort |
modelling the impact of condition-dependent responses and lipid-store availability on the consequences of disturbance in a cetacean |
publisher |
Oxford University Press |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9672687/ http://www.ncbi.nlm.nih.gov/pubmed/36415287 https://doi.org/10.1093/conphys/coac069 |
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Sperm whale |
genre_facet |
Sperm whale |
op_source |
Conserv Physiol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9672687/ http://www.ncbi.nlm.nih.gov/pubmed/36415287 http://dx.doi.org/10.1093/conphys/coac069 |
op_rights |
© The Author(s) 2022. Published by Oxford University Press and the Society for Experimental Biology. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
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CC-BY |
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https://doi.org/10.1093/conphys/coac069 |
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Conservation Physiology |
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10 |
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