Feeding alters the preferred body temperature of Cururu toads, Rhinella diptycha (Anura, Bufonidae)

Detalhes bibliográficos
Autor(a) principal: Clemente, Amanda C. [UNESP]
Data de Publicação: 2020
Outros Autores: Senzano, Luis M. [UNESP], Gavira, Rodrigo S. B., Andrade, Denis [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.cbpa.2020.110771
http://hdl.handle.net/11449/197278
Resumo: Ectothermic organisms depend primarily on external heat sources and behavioural adjustments to regulate body temperature. Under controlled conditions, in a thermal gradient, body temperature often clusters around a more or less defined range of preferred body temperatures (T-pref). However, T-pref may be modified in response to environmental parameters and/or physiological state. For example, meal ingestion is sometimes followed by a post-prandial thermophilic response leading to a transient increment in T-pref. Although thought to optimize digestive processes, its occurrence, magnitude, and possible determinants remains scarcely documented for anuran amphibians. Herein, we investigated whether the Cururu toad, Rhinella diptycha, exhibits a post-prandial thermophilic response by monitoring the body temperature of fasting and fed toads while they were maintained in a thermal gradient. We found that the toads' T-pref increased by about 13% from day 2 to 4 after feeding, in comparison with the T-pref recorded under fasting. Also, fed animals exhibited a broader range for T-pref at days 2 and 3 post-prandial, which reflects a greater level of locomotor activity compared to fasting individuals. We conclude that R. diptycha is capable to exhibit a post-prandial thermophilic response under the controlled conditions of a thermal gradient. Although this thermoregulatory adjustment is thought to optimize meal digestion yielding important energetic and ecological benefits, its occurrence in anuran amphibians in nature remains uncertain.
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spelling Feeding alters the preferred body temperature of Cururu toads, Rhinella diptycha (Anura, Bufonidae)Behavioural thermoregulationPreferred body temperatureDigestionThermophilic responseFeeding biologyEctothermic organisms depend primarily on external heat sources and behavioural adjustments to regulate body temperature. Under controlled conditions, in a thermal gradient, body temperature often clusters around a more or less defined range of preferred body temperatures (T-pref). However, T-pref may be modified in response to environmental parameters and/or physiological state. For example, meal ingestion is sometimes followed by a post-prandial thermophilic response leading to a transient increment in T-pref. Although thought to optimize digestive processes, its occurrence, magnitude, and possible determinants remains scarcely documented for anuran amphibians. Herein, we investigated whether the Cururu toad, Rhinella diptycha, exhibits a post-prandial thermophilic response by monitoring the body temperature of fasting and fed toads while they were maintained in a thermal gradient. We found that the toads' T-pref increased by about 13% from day 2 to 4 after feeding, in comparison with the T-pref recorded under fasting. Also, fed animals exhibited a broader range for T-pref at days 2 and 3 post-prandial, which reflects a greater level of locomotor activity compared to fasting individuals. We conclude that R. diptycha is capable to exhibit a post-prandial thermophilic response under the controlled conditions of a thermal gradient. Although this thermoregulatory adjustment is thought to optimize meal digestion yielding important energetic and ecological benefits, its occurrence in anuran amphibians in nature remains uncertain.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Univ Estadual Paulista, Inst Biociencias, Dept Zool, Rio Claro, SP, BrazilCtr Etud Biol Chize CNRS CEBC, Lab Ecophysiol, Villiers Em Bois, FranceUniv Estadual Paulista, Inst Biociencias, Dept Zool, Rio Claro, SP, BrazilCNPq: 117126/2016-0CNPq: 160064/2017-1CNPq: 306811/2015CNPq: 130785/2016-4FAPESP: 13/04190-9FAPESP: 18/05839-2FAPESP: 12/15697-4Elsevier B.V.Universidade Estadual Paulista (Unesp)Ctr Etud Biol Chize CNRS CEBCClemente, Amanda C. [UNESP]Senzano, Luis M. [UNESP]Gavira, Rodrigo S. B.Andrade, Denis [UNESP]2020-12-10T20:11:53Z2020-12-10T20:11:53Z2020-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article7http://dx.doi.org/10.1016/j.cbpa.2020.110771Comparative Biochemistry And Physiology A-molecular & Integrative Physiology. New York: Elsevier Science Inc, v. 249, 7 p., 2020.1095-6433http://hdl.handle.net/11449/19727810.1016/j.cbpa.2020.110771WOS:000565911500006Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengComparative Biochemistry And Physiology A-molecular & Integrative Physiologyinfo:eu-repo/semantics/openAccess2021-10-23T12:31:42Zoai:repositorio.unesp.br:11449/197278Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:12:25.121917Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Feeding alters the preferred body temperature of Cururu toads, Rhinella diptycha (Anura, Bufonidae)
title Feeding alters the preferred body temperature of Cururu toads, Rhinella diptycha (Anura, Bufonidae)
spellingShingle Feeding alters the preferred body temperature of Cururu toads, Rhinella diptycha (Anura, Bufonidae)
Clemente, Amanda C. [UNESP]
Behavioural thermoregulation
Preferred body temperature
Digestion
Thermophilic response
Feeding biology
title_short Feeding alters the preferred body temperature of Cururu toads, Rhinella diptycha (Anura, Bufonidae)
title_full Feeding alters the preferred body temperature of Cururu toads, Rhinella diptycha (Anura, Bufonidae)
title_fullStr Feeding alters the preferred body temperature of Cururu toads, Rhinella diptycha (Anura, Bufonidae)
title_full_unstemmed Feeding alters the preferred body temperature of Cururu toads, Rhinella diptycha (Anura, Bufonidae)
title_sort Feeding alters the preferred body temperature of Cururu toads, Rhinella diptycha (Anura, Bufonidae)
author Clemente, Amanda C. [UNESP]
author_facet Clemente, Amanda C. [UNESP]
Senzano, Luis M. [UNESP]
Gavira, Rodrigo S. B.
Andrade, Denis [UNESP]
author_role author
author2 Senzano, Luis M. [UNESP]
Gavira, Rodrigo S. B.
Andrade, Denis [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Ctr Etud Biol Chize CNRS CEBC
dc.contributor.author.fl_str_mv Clemente, Amanda C. [UNESP]
Senzano, Luis M. [UNESP]
Gavira, Rodrigo S. B.
Andrade, Denis [UNESP]
dc.subject.por.fl_str_mv Behavioural thermoregulation
Preferred body temperature
Digestion
Thermophilic response
Feeding biology
topic Behavioural thermoregulation
Preferred body temperature
Digestion
Thermophilic response
Feeding biology
description Ectothermic organisms depend primarily on external heat sources and behavioural adjustments to regulate body temperature. Under controlled conditions, in a thermal gradient, body temperature often clusters around a more or less defined range of preferred body temperatures (T-pref). However, T-pref may be modified in response to environmental parameters and/or physiological state. For example, meal ingestion is sometimes followed by a post-prandial thermophilic response leading to a transient increment in T-pref. Although thought to optimize digestive processes, its occurrence, magnitude, and possible determinants remains scarcely documented for anuran amphibians. Herein, we investigated whether the Cururu toad, Rhinella diptycha, exhibits a post-prandial thermophilic response by monitoring the body temperature of fasting and fed toads while they were maintained in a thermal gradient. We found that the toads' T-pref increased by about 13% from day 2 to 4 after feeding, in comparison with the T-pref recorded under fasting. Also, fed animals exhibited a broader range for T-pref at days 2 and 3 post-prandial, which reflects a greater level of locomotor activity compared to fasting individuals. We conclude that R. diptycha is capable to exhibit a post-prandial thermophilic response under the controlled conditions of a thermal gradient. Although this thermoregulatory adjustment is thought to optimize meal digestion yielding important energetic and ecological benefits, its occurrence in anuran amphibians in nature remains uncertain.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-10T20:11:53Z
2020-12-10T20:11:53Z
2020-11-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.cbpa.2020.110771
Comparative Biochemistry And Physiology A-molecular & Integrative Physiology. New York: Elsevier Science Inc, v. 249, 7 p., 2020.
1095-6433
http://hdl.handle.net/11449/197278
10.1016/j.cbpa.2020.110771
WOS:000565911500006
url http://dx.doi.org/10.1016/j.cbpa.2020.110771
http://hdl.handle.net/11449/197278
identifier_str_mv Comparative Biochemistry And Physiology A-molecular & Integrative Physiology. New York: Elsevier Science Inc, v. 249, 7 p., 2020.
1095-6433
10.1016/j.cbpa.2020.110771
WOS:000565911500006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Comparative Biochemistry And Physiology A-molecular & Integrative Physiology
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 7
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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