Pushed for time or saving on fuel: Fine-scale energy budgets shed light on currencies in a diving bird

Autores
Shepard, Emily L. C.; Wilson, Rory P.; Quintana, Flavio Roberto; Gómez Laich, Agustina Marta; Forman, Dan W.
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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
Materia
ACCELERATION
CENTRAL PLACE FORAGING
CURRENCY
ENERGY EXPENDITURE
FORAGING STRATEGY
TIME-ENERGY BUDGET
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/95392
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Pushed for time or saving on fuel: Fine-scale energy budgets shed light on currencies in a diving birdShepard, Emily L. C.Wilson, Rory P.Quintana, Flavio RobertoGómez Laich, Agustina MartaForman, Dan W.ACCELERATIONCENTRAL PLACE FORAGINGCURRENCYENERGY EXPENDITUREFORAGING STRATEGYTIME-ENERGY BUDGEThttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Animals 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 UnidoFil: Wilson, Rory P.. Swansea University; Reino UnidoFil: Quintana, Flavio Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina. Wildlife Conservation Society; Estados UnidosFil: Gómez Laich, Agustina Marta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; ArgentinaFil: Forman, Dan W.. Swansea University; Reino UnidoThe Royal Society2009-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/95392Shepard, 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; 3149-31550962-8452CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1098/rspb.2009.0683info:eu-repo/semantics/altIdentifier/url/https://royalsocietypublishing.org/doi/10.1098/rspb.2009.0683info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:25:31Zoai:ri.conicet.gov.ar:11336/95392instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:25:31.345CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Pushed for time or saving on fuel: Fine-scale energy budgets shed light on currencies in a diving bird
title Pushed for time or saving on fuel: Fine-scale energy budgets shed light on currencies in a diving bird
spellingShingle Pushed for time or saving on fuel: Fine-scale energy budgets shed light on currencies in a diving bird
Shepard, Emily L. C.
ACCELERATION
CENTRAL PLACE FORAGING
CURRENCY
ENERGY EXPENDITURE
FORAGING STRATEGY
TIME-ENERGY BUDGET
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
dc.creator.none.fl_str_mv Shepard, Emily L. C.
Wilson, Rory P.
Quintana, Flavio Roberto
Gómez Laich, Agustina Marta
Forman, Dan W.
author Shepard, Emily L. C.
author_facet Shepard, Emily L. C.
Wilson, Rory P.
Quintana, Flavio Roberto
Gómez Laich, Agustina Marta
Forman, Dan W.
author_role author
author2 Wilson, Rory P.
Quintana, Flavio Roberto
Gómez Laich, Agustina Marta
Forman, Dan W.
author2_role author
author
author
author
dc.subject.none.fl_str_mv ACCELERATION
CENTRAL PLACE FORAGING
CURRENCY
ENERGY EXPENDITURE
FORAGING STRATEGY
TIME-ENERGY BUDGET
topic ACCELERATION
CENTRAL PLACE FORAGING
CURRENCY
ENERGY EXPENDITURE
FORAGING STRATEGY
TIME-ENERGY BUDGET
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv 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
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.
publishDate 2009
dc.date.none.fl_str_mv 2009-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 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
url http://hdl.handle.net/11336/95392
identifier_str_mv 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
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 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
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv The Royal Society
publisher.none.fl_str_mv The Royal Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846781805044170752
score 12.982451

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