Resting metabolic rate and heat increment of feeding in juvenile South American fur seals (Arctocephalus australis)

Bio-energetic models used to characterize an animal's energy budget require the accurate estimate of different variables such as the resting metabolic rate (RMR) and the heat increment of feeding (HIF). In this study, we estimated the in air RMR of wild juvenile South American fur seals (SAFS;...

Descripción completa

Detalles Bibliográficos
Autores principales:	Dassis, M., Rodríguez, D.H., Ieno, E.N., Denuncio, P.E., Loureiro, J., Davis, R.W.
Formato:	JOUR
Lenguaje:	English
Materias:	Arctocephalus australis Energetics Fur seals Heat increment of feeding Linear mixed effect models Resting metabolic rate air article bioenergy controlled study digestion foraging heat increment of feeding juvenile animal male metabolic rate nonhuman nutrient oxygen consumption postprandial state rest resting metabolic rate seal
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_10956433_v168_n_p63_Dassis
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_10956433_v168_n_p63_Dassis
record_format	dspace
spelling	todo:paper_10956433_v168_n_p63_Dassis2023-10-03T16:05:22Z Resting metabolic rate and heat increment of feeding in juvenile South American fur seals (Arctocephalus australis) Dassis, M. Rodríguez, D.H. Ieno, E.N. Denuncio, P.E. Loureiro, J. Davis, R.W. Arctocephalus australis Energetics Fur seals Heat increment of feeding Linear mixed effect models Resting metabolic rate air article bioenergy controlled study digestion foraging heat increment of feeding juvenile animal male metabolic rate nonhuman nutrient oxygen consumption postprandial state rest resting metabolic rate seal Bio-energetic models used to characterize an animal's energy budget require the accurate estimate of different variables such as the resting metabolic rate (RMR) and the heat increment of feeding (HIF). In this study, we estimated the in air RMR of wild juvenile South American fur seals (SAFS; Arctocephalus australis) temporarily held in captivity by measuring oxygen consumption while at rest in a postabsorptive condition. HIF, which is an increase in metabolic rate associated with digestion, assimilation and nutrient interconversion, was estimated as the difference in resting metabolic rate between the postabsorptive condition and the first 3.5h postprandial. As data were hierarchically structured, linear mixed effect models were used to compare RMR measures under both physiological conditions. Results indicated a significant increase (61%) for the postprandial RMR compared to the postabsorptive condition, estimated at 17.93±1.84 and 11.15±1.91mL O2 min-1kg-1, respectively. These values constitute the first estimation of RMR and HIF in this species, and should be considered in the energy budgets for juvenile SAFS foraging at-sea. © 2013 Elsevier Inc. JOUR English info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10956433_v168_n_p63_Dassis
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language	English
orig_language_str_mv	English
topic	Arctocephalus australis Energetics Fur seals Heat increment of feeding Linear mixed effect models Resting metabolic rate air article bioenergy controlled study digestion foraging heat increment of feeding juvenile animal male metabolic rate nonhuman nutrient oxygen consumption postprandial state rest resting metabolic rate seal
spellingShingle	Arctocephalus australis Energetics Fur seals Heat increment of feeding Linear mixed effect models Resting metabolic rate air article bioenergy controlled study digestion foraging heat increment of feeding juvenile animal male metabolic rate nonhuman nutrient oxygen consumption postprandial state rest resting metabolic rate seal Dassis, M. Rodríguez, D.H. Ieno, E.N. Denuncio, P.E. Loureiro, J. Davis, R.W. Resting metabolic rate and heat increment of feeding in juvenile South American fur seals (Arctocephalus australis)
topic_facet	Arctocephalus australis Energetics Fur seals Heat increment of feeding Linear mixed effect models Resting metabolic rate air article bioenergy controlled study digestion foraging heat increment of feeding juvenile animal male metabolic rate nonhuman nutrient oxygen consumption postprandial state rest resting metabolic rate seal
description	Bio-energetic models used to characterize an animal's energy budget require the accurate estimate of different variables such as the resting metabolic rate (RMR) and the heat increment of feeding (HIF). In this study, we estimated the in air RMR of wild juvenile South American fur seals (SAFS; Arctocephalus australis) temporarily held in captivity by measuring oxygen consumption while at rest in a postabsorptive condition. HIF, which is an increase in metabolic rate associated with digestion, assimilation and nutrient interconversion, was estimated as the difference in resting metabolic rate between the postabsorptive condition and the first 3.5h postprandial. As data were hierarchically structured, linear mixed effect models were used to compare RMR measures under both physiological conditions. Results indicated a significant increase (61%) for the postprandial RMR compared to the postabsorptive condition, estimated at 17.93±1.84 and 11.15±1.91mL O2 min-1kg-1, respectively. These values constitute the first estimation of RMR and HIF in this species, and should be considered in the energy budgets for juvenile SAFS foraging at-sea. © 2013 Elsevier Inc.
format	JOUR
author	Dassis, M. Rodríguez, D.H. Ieno, E.N. Denuncio, P.E. Loureiro, J. Davis, R.W.
author_facet	Dassis, M. Rodríguez, D.H. Ieno, E.N. Denuncio, P.E. Loureiro, J. Davis, R.W.
author_sort	Dassis, M.
title	Resting metabolic rate and heat increment of feeding in juvenile South American fur seals (Arctocephalus australis)
title_short	Resting metabolic rate and heat increment of feeding in juvenile South American fur seals (Arctocephalus australis)
title_full	Resting metabolic rate and heat increment of feeding in juvenile South American fur seals (Arctocephalus australis)
title_fullStr	Resting metabolic rate and heat increment of feeding in juvenile South American fur seals (Arctocephalus australis)
title_full_unstemmed	Resting metabolic rate and heat increment of feeding in juvenile South American fur seals (Arctocephalus australis)
title_sort	resting metabolic rate and heat increment of feeding in juvenile south american fur seals (arctocephalus australis)
url	http://hdl.handle.net/20.500.12110/paper_10956433_v168_n_p63_Dassis
work_keys_str_mv	AT dassism restingmetabolicrateandheatincrementoffeedinginjuvenilesouthamericanfursealsarctocephalusaustralis AT rodriguezdh restingmetabolicrateandheatincrementoffeedinginjuvenilesouthamericanfursealsarctocephalusaustralis AT ienoen restingmetabolicrateandheatincrementoffeedinginjuvenilesouthamericanfursealsarctocephalusaustralis AT denunciope restingmetabolicrateandheatincrementoffeedinginjuvenilesouthamericanfursealsarctocephalusaustralis AT loureiroj restingmetabolicrateandheatincrementoffeedinginjuvenilesouthamericanfursealsarctocephalusaustralis AT davisrw restingmetabolicrateandheatincrementoffeedinginjuvenilesouthamericanfursealsarctocephalusaustralis
_version_	1807322892119048192

Resting metabolic rate and heat increment of feeding in juvenile South American fur seals (Arctocephalus australis)

Ejemplares similares