Assimilation efficiency in Bufo spinulosus tadpoles (Anura: Bufonidae): effects of temperature, diet quality and geographic origin

The assimilation efficiency of Bufo spinulosus tadpoles from four localities in Chile was evaluated for two different temperatures (15 and 25 ºC) and two different diets (low nutritional quality diet (LQD): 22.28 mg g N-1; high nutritional quality diet (HQD): 47.53 mg g N-1) using ash as a marker of...

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Autores principales:	BENAVIDES,A. GONZALO, VELOSO,ALBERTO, JIMÉNEZ,PAULINA, MÉNDEZ,MARCO A.
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2005
Materias:	Bufo spinulosus tadpoles assimilation temperature effects diet quality effects geographic origin effects
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000200013
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spelling	oai:scielo:S0716-078X20050002000132014-08-12Assimilation efficiency in Bufo spinulosus tadpoles (Anura: Bufonidae): effects of temperature, diet quality and geographic originBENAVIDES,A. GONZALOVELOSO,ALBERTOJIMÉNEZ,PAULINAMÉNDEZ,MARCO A. Bufo spinulosus tadpoles assimilation temperature effects diet quality effects geographic origin effects The assimilation efficiency of Bufo spinulosus tadpoles from four localities in Chile was evaluated for two different temperatures (15 and 25 ºC) and two different diets (low nutritional quality diet (LQD): 22.28 mg g N-1; high nutritional quality diet (HQD): 47.53 mg g N-1) using ash as a marker of digestion. Results showed that geographic origin did not affect assimilation efficiency, while the relationship observed between temperature and diet quality was significant. Assimilation efficiency was greater for the HQD when tadpoles were maintained at 15 °C, instead significant differences were not found between diets for tadpoles maintained at 25 °C. Our results suggest that the effect of temperature on digestive processes is more relevant than its effect on transit time in the digestive tract. The differences in size at metamorphosis in B spinulosus populations of distinct geographic origin could not be explained by the existence of differences in physiologic digestive capacitiesinfo:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.78 n.2 20052005-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000200013en10.4067/S0716-078X2005000200013
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Bufo spinulosus tadpoles assimilation temperature effects diet quality effects geographic origin effects
spellingShingle	Bufo spinulosus tadpoles assimilation temperature effects diet quality effects geographic origin effects BENAVIDES,A. GONZALO VELOSO,ALBERTO JIMÉNEZ,PAULINA MÉNDEZ,MARCO A. Assimilation efficiency in Bufo spinulosus tadpoles (Anura: Bufonidae): effects of temperature, diet quality and geographic origin
description	The assimilation efficiency of Bufo spinulosus tadpoles from four localities in Chile was evaluated for two different temperatures (15 and 25 ºC) and two different diets (low nutritional quality diet (LQD): 22.28 mg g N-1; high nutritional quality diet (HQD): 47.53 mg g N-1) using ash as a marker of digestion. Results showed that geographic origin did not affect assimilation efficiency, while the relationship observed between temperature and diet quality was significant. Assimilation efficiency was greater for the HQD when tadpoles were maintained at 15 °C, instead significant differences were not found between diets for tadpoles maintained at 25 °C. Our results suggest that the effect of temperature on digestive processes is more relevant than its effect on transit time in the digestive tract. The differences in size at metamorphosis in B spinulosus populations of distinct geographic origin could not be explained by the existence of differences in physiologic digestive capacities
author	BENAVIDES,A. GONZALO VELOSO,ALBERTO JIMÉNEZ,PAULINA MÉNDEZ,MARCO A.
author_facet	BENAVIDES,A. GONZALO VELOSO,ALBERTO JIMÉNEZ,PAULINA MÉNDEZ,MARCO A.
author_sort	BENAVIDES,A. GONZALO
title	Assimilation efficiency in Bufo spinulosus tadpoles (Anura: Bufonidae): effects of temperature, diet quality and geographic origin
title_short	Assimilation efficiency in Bufo spinulosus tadpoles (Anura: Bufonidae): effects of temperature, diet quality and geographic origin
title_full	Assimilation efficiency in Bufo spinulosus tadpoles (Anura: Bufonidae): effects of temperature, diet quality and geographic origin
title_fullStr	Assimilation efficiency in Bufo spinulosus tadpoles (Anura: Bufonidae): effects of temperature, diet quality and geographic origin
title_full_unstemmed	Assimilation efficiency in Bufo spinulosus tadpoles (Anura: Bufonidae): effects of temperature, diet quality and geographic origin
title_sort	assimilation efficiency in bufo spinulosus tadpoles (anura: bufonidae): effects of temperature, diet quality and geographic origin
publisher	Sociedad de Biología de Chile
publishDate	2005
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000200013
work_keys_str_mv	AT benavidesagonzalo assimilationefficiencyinbufospinulosustadpolesanurabufonidaeeffectsoftemperaturedietqualityandgeographicorigin AT velosoalberto assimilationefficiencyinbufospinulosustadpolesanurabufonidaeeffectsoftemperaturedietqualityandgeographicorigin AT jimenezpaulina assimilationefficiencyinbufospinulosustadpolesanurabufonidaeeffectsoftemperaturedietqualityandgeographicorigin AT mendezmarcoa assimilationefficiencyinbufospinulosustadpolesanurabufonidaeeffectsoftemperaturedietqualityandgeographicorigin
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Assimilation efficiency in Bufo spinulosus tadpoles (Anura: Bufonidae): effects of temperature, diet quality and geographic origin

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