Pushed for time or saving on fuel: Fine-scale energy budgets shed light on currencies in a diving bird
Animals may forage using different currencies depending on whether time minimization or energy maximization is more pertinent at the time. Assessment of net energy acquisition requires detailed information on instantaneous activity-specific power use, which varies according to animal performance, be...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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ftconicet:oai:ri.conicet.gov.ar:11336/95392 2023-10-09T21:52:54+02:00 Pushed for time or saving on fuel: Fine-scale energy budgets shed light on currencies in a diving bird Shepard, Emily L. C. Wilson, Rory P. Quintana, Flavio Roberto Gómez Laich, Agustina Marta Forman, Dan W. application/pdf http://hdl.handle.net/11336/95392 eng eng The Royal Society info:eu-repo/semantics/altIdentifier/doi/10.1098/rspb.2009.0683 info:eu-repo/semantics/altIdentifier/url/https://royalsocietypublishing.org/doi/10.1098/rspb.2009.0683 http://hdl.handle.net/11336/95392 Shepard, Emily L. C.; Wilson, Rory P.; Quintana, Flavio Roberto; Gómez Laich, Agustina Marta; Forman, Dan W.; Pushed for time or saving on fuel: Fine-scale energy budgets shed light on currencies in a diving bird; The Royal Society; Proceedings of the Royal Society of London. Series B: Biological Sciences; 276; 1670; 9-2009; 3149-3155 0962-8452 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ACCELERATION CENTRAL PLACE FORAGING CURRENCY ENERGY EXPENDITURE FORAGING STRATEGY TIME-ENERGY BUDGET https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1098/rspb.2009.0683 2023-09-24T19:09:23Z Animals may forage using different currencies depending on whether time minimization or energy maximization is more pertinent at the time. Assessment of net energy acquisition requires detailed information on instantaneous activity-specific power use, which varies according to animal performance, being influenced, for example, by speed and prey loading, and which has not been measured before in wild animals. We used a new proxy for instantaneous energy expenditure (overall dynamic body acceleration), to quantify foraging effort in a model species, the imperial shag Phalacrocorax atriceps, during diving. Power costs varied nonlinearly with depth exploited owing to depth-related buoyancy. Consequently, solutions for maximizing the gross rate of gain and energetic efficiency differed for dives to any given depth. Dive effort in free-ranging imperial shags measured during the breeding season was consistent with a strategy to maximize the gross rate of energy gain. We suggest that the divergence of time and energy costs with dive depth has implications for the measurement of dive efficiency across diverse diving taxa. Fil: Shepard, Emily L. C. Swansea University; Reino Unido Fil: Wilson, Rory P. Swansea University; Reino Unido Fil: Quintana, Flavio Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina. Wildlife Conservation Society; Estados Unidos Fil: Gómez Laich, Agustina Marta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina Fil: Forman, Dan W. Swansea University; Reino Unido Article in Journal/Newspaper Imperial Shag Phalacrocorax atriceps CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentina Proceedings of the Royal Society B: Biological Sciences 276 1670 3149 3155 |
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Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
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ftconicet |
language |
English |
topic |
ACCELERATION CENTRAL PLACE FORAGING CURRENCY ENERGY EXPENDITURE FORAGING STRATEGY TIME-ENERGY BUDGET https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
ACCELERATION CENTRAL PLACE FORAGING CURRENCY ENERGY EXPENDITURE FORAGING STRATEGY TIME-ENERGY BUDGET https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Shepard, Emily L. C. Wilson, Rory P. Quintana, Flavio Roberto Gómez Laich, Agustina Marta Forman, Dan W. Pushed for time or saving on fuel: Fine-scale energy budgets shed light on currencies in a diving bird |
topic_facet |
ACCELERATION CENTRAL PLACE FORAGING CURRENCY ENERGY EXPENDITURE FORAGING STRATEGY TIME-ENERGY BUDGET https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Animals may forage using different currencies depending on whether time minimization or energy maximization is more pertinent at the time. Assessment of net energy acquisition requires detailed information on instantaneous activity-specific power use, which varies according to animal performance, being influenced, for example, by speed and prey loading, and which has not been measured before in wild animals. We used a new proxy for instantaneous energy expenditure (overall dynamic body acceleration), to quantify foraging effort in a model species, the imperial shag Phalacrocorax atriceps, during diving. Power costs varied nonlinearly with depth exploited owing to depth-related buoyancy. Consequently, solutions for maximizing the gross rate of gain and energetic efficiency differed for dives to any given depth. Dive effort in free-ranging imperial shags measured during the breeding season was consistent with a strategy to maximize the gross rate of energy gain. We suggest that the divergence of time and energy costs with dive depth has implications for the measurement of dive efficiency across diverse diving taxa. Fil: Shepard, Emily L. C. Swansea University; Reino Unido Fil: Wilson, Rory P. Swansea University; Reino Unido Fil: Quintana, Flavio Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina. Wildlife Conservation Society; Estados Unidos Fil: Gómez Laich, Agustina Marta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina Fil: Forman, Dan W. Swansea University; Reino Unido |
format |
Article in Journal/Newspaper |
author |
Shepard, Emily L. C. Wilson, Rory P. Quintana, Flavio Roberto Gómez Laich, Agustina Marta Forman, Dan W. |
author_facet |
Shepard, Emily L. C. Wilson, Rory P. Quintana, Flavio Roberto Gómez Laich, Agustina Marta Forman, Dan W. |
author_sort |
Shepard, Emily L. C. |
title |
Pushed for time or saving on fuel: Fine-scale energy budgets shed light on currencies in a diving bird |
title_short |
Pushed for time or saving on fuel: Fine-scale energy budgets shed light on currencies in a diving bird |
title_full |
Pushed for time or saving on fuel: Fine-scale energy budgets shed light on currencies in a diving bird |
title_fullStr |
Pushed for time or saving on fuel: Fine-scale energy budgets shed light on currencies in a diving bird |
title_full_unstemmed |
Pushed for time or saving on fuel: Fine-scale energy budgets shed light on currencies in a diving bird |
title_sort |
pushed for time or saving on fuel: fine-scale energy budgets shed light on currencies in a diving bird |
publisher |
The Royal Society |
url |
http://hdl.handle.net/11336/95392 |
geographic |
Argentina |
geographic_facet |
Argentina |
genre |
Imperial Shag Phalacrocorax atriceps |
genre_facet |
Imperial Shag Phalacrocorax atriceps |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1098/rspb.2009.0683 info:eu-repo/semantics/altIdentifier/url/https://royalsocietypublishing.org/doi/10.1098/rspb.2009.0683 http://hdl.handle.net/11336/95392 Shepard, Emily L. C.; Wilson, Rory P.; Quintana, Flavio Roberto; Gómez Laich, Agustina Marta; Forman, Dan W.; Pushed for time or saving on fuel: Fine-scale energy budgets shed light on currencies in a diving bird; The Royal Society; Proceedings of the Royal Society of London. Series B: Biological Sciences; 276; 1670; 9-2009; 3149-3155 0962-8452 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1098/rspb.2009.0683 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
276 |
container_issue |
1670 |
container_start_page |
3149 |
op_container_end_page |
3155 |
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1779316102508052480 |