Comparative Energetics of the Subterranean Ctenomys Rodents: Breaking Patterns

Autores
Luna, Facundo; Antenucci, Carlos Daniel; Bozinovic, Francisco
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Subterranean mammals show lower mass independent basal metabolic rates (BMR), and several competing hypotheses were suggested to explain how microenvironmental conditions and underground life affect subterranean mammalian energetics. Two of these are the thermal-stress and the cost-of- burrowing hypotheses. The thermal-stress hypothesis posits that a lower massindependent BMR reduces overheating in burrows where convective and evaporative heat loss is low, whereas the cost-of- burrowing hypothesis states that a lower mass-independent BMR may compensate for the high energy expenditure of digging. In this paper we assessed the relationship between BMR of Ctenomys and environmental variables through conventional statistics as well independent contrasts. Moreover, we tested both, thermal-stress and cost of burrowing hypotheses at an interspecific level in a very homogenous genus of subterranean rodents, the South American genus Ctenomys. We compared species from different geographic localities with contrasting habitat conditions. We measured BMR through open flow respirometry. After conventional as well independent contrast analyses, our results support neither the thermal stress nor the cost of burrowing hypotheses. We observed that only body mass affect the variability in BMR. No contrasting climatic and soil conditions, habitat productivity, or net primary productivity were correlated with BMR variability. We suggested that since BMR and maximum metabolic rates (MMR) are correlated, low BMR´s among Ctenomys species could be also determined by factors that affect MMR rather BMR.
Fil: Luna, Facundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Antenucci, Carlos Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Bozinovic, Francisco. Pontificia Universidad Católica de Chile; Chile
Materia
Energetics
Ctenomys genus
metanolic rates
distribution
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:11336/241149

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spelling Comparative Energetics of the Subterranean Ctenomys Rodents: Breaking PatternsLuna, FacundoAntenucci, Carlos DanielBozinovic, FranciscoEnergeticsCtenomys genusmetanolic ratesdistributionhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Subterranean mammals show lower mass independent basal metabolic rates (BMR), and several competing hypotheses were suggested to explain how microenvironmental conditions and underground life affect subterranean mammalian energetics. Two of these are the thermal-stress and the cost-of- burrowing hypotheses. The thermal-stress hypothesis posits that a lower massindependent BMR reduces overheating in burrows where convective and evaporative heat loss is low, whereas the cost-of- burrowing hypothesis states that a lower mass-independent BMR may compensate for the high energy expenditure of digging. In this paper we assessed the relationship between BMR of Ctenomys and environmental variables through conventional statistics as well independent contrasts. Moreover, we tested both, thermal-stress and cost of burrowing hypotheses at an interspecific level in a very homogenous genus of subterranean rodents, the South American genus Ctenomys. We compared species from different geographic localities with contrasting habitat conditions. We measured BMR through open flow respirometry. After conventional as well independent contrast analyses, our results support neither the thermal stress nor the cost of burrowing hypotheses. We observed that only body mass affect the variability in BMR. No contrasting climatic and soil conditions, habitat productivity, or net primary productivity were correlated with BMR variability. We suggested that since BMR and maximum metabolic rates (MMR) are correlated, low BMR´s among Ctenomys species could be also determined by factors that affect MMR rather BMR.Fil: Luna, Facundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Antenucci, Carlos Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Bozinovic, Francisco. Pontificia Universidad Católica de Chile; ChileUniversity of Chicago Press2009-05info: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/11336/241149Luna, Facundo; Antenucci, Carlos Daniel; Bozinovic, Francisco; Comparative Energetics of the Subterranean Ctenomys Rodents: Breaking Patterns; University of Chicago Press; Physiological and Biochemical Zoology; 82; 3; 5-2009; 226-2351522-2152CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1086/597526info:eu-repo/semantics/altIdentifier/url/https://www.journals.uchicago.edu/doi/epdf/10.1086/597526info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:58Zoai:ri.conicet.gov.ar:11336/241149instacron: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:34982025-09-03 10:01:59.196CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Comparative Energetics of the Subterranean Ctenomys Rodents: Breaking Patterns
title Comparative Energetics of the Subterranean Ctenomys Rodents: Breaking Patterns
spellingShingle Comparative Energetics of the Subterranean Ctenomys Rodents: Breaking Patterns
Luna, Facundo
Energetics
Ctenomys genus
metanolic rates
distribution
title_short Comparative Energetics of the Subterranean Ctenomys Rodents: Breaking Patterns
title_full Comparative Energetics of the Subterranean Ctenomys Rodents: Breaking Patterns
title_fullStr Comparative Energetics of the Subterranean Ctenomys Rodents: Breaking Patterns
title_full_unstemmed Comparative Energetics of the Subterranean Ctenomys Rodents: Breaking Patterns
title_sort Comparative Energetics of the Subterranean Ctenomys Rodents: Breaking Patterns
dc.creator.none.fl_str_mv Luna, Facundo
Antenucci, Carlos Daniel
Bozinovic, Francisco
author Luna, Facundo
author_facet Luna, Facundo
Antenucci, Carlos Daniel
Bozinovic, Francisco
author_role author
author2 Antenucci, Carlos Daniel
Bozinovic, Francisco
author2_role author
author
dc.subject.none.fl_str_mv Energetics
Ctenomys genus
metanolic rates
distribution
topic Energetics
Ctenomys genus
metanolic rates
distribution
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Subterranean mammals show lower mass independent basal metabolic rates (BMR), and several competing hypotheses were suggested to explain how microenvironmental conditions and underground life affect subterranean mammalian energetics. Two of these are the thermal-stress and the cost-of- burrowing hypotheses. The thermal-stress hypothesis posits that a lower massindependent BMR reduces overheating in burrows where convective and evaporative heat loss is low, whereas the cost-of- burrowing hypothesis states that a lower mass-independent BMR may compensate for the high energy expenditure of digging. In this paper we assessed the relationship between BMR of Ctenomys and environmental variables through conventional statistics as well independent contrasts. Moreover, we tested both, thermal-stress and cost of burrowing hypotheses at an interspecific level in a very homogenous genus of subterranean rodents, the South American genus Ctenomys. We compared species from different geographic localities with contrasting habitat conditions. We measured BMR through open flow respirometry. After conventional as well independent contrast analyses, our results support neither the thermal stress nor the cost of burrowing hypotheses. We observed that only body mass affect the variability in BMR. No contrasting climatic and soil conditions, habitat productivity, or net primary productivity were correlated with BMR variability. We suggested that since BMR and maximum metabolic rates (MMR) are correlated, low BMR´s among Ctenomys species could be also determined by factors that affect MMR rather BMR.
Fil: Luna, Facundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Antenucci, Carlos Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Bozinovic, Francisco. Pontificia Universidad Católica de Chile; Chile
description Subterranean mammals show lower mass independent basal metabolic rates (BMR), and several competing hypotheses were suggested to explain how microenvironmental conditions and underground life affect subterranean mammalian energetics. Two of these are the thermal-stress and the cost-of- burrowing hypotheses. The thermal-stress hypothesis posits that a lower massindependent BMR reduces overheating in burrows where convective and evaporative heat loss is low, whereas the cost-of- burrowing hypothesis states that a lower mass-independent BMR may compensate for the high energy expenditure of digging. In this paper we assessed the relationship between BMR of Ctenomys and environmental variables through conventional statistics as well independent contrasts. Moreover, we tested both, thermal-stress and cost of burrowing hypotheses at an interspecific level in a very homogenous genus of subterranean rodents, the South American genus Ctenomys. We compared species from different geographic localities with contrasting habitat conditions. We measured BMR through open flow respirometry. After conventional as well independent contrast analyses, our results support neither the thermal stress nor the cost of burrowing hypotheses. We observed that only body mass affect the variability in BMR. No contrasting climatic and soil conditions, habitat productivity, or net primary productivity were correlated with BMR variability. We suggested that since BMR and maximum metabolic rates (MMR) are correlated, low BMR´s among Ctenomys species could be also determined by factors that affect MMR rather BMR.
publishDate 2009
dc.date.none.fl_str_mv 2009-05
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/11336/241149
Luna, Facundo; Antenucci, Carlos Daniel; Bozinovic, Francisco; Comparative Energetics of the Subterranean Ctenomys Rodents: Breaking Patterns; University of Chicago Press; Physiological and Biochemical Zoology; 82; 3; 5-2009; 226-235
1522-2152
CONICET Digital
CONICET
url http://hdl.handle.net/11336/241149
identifier_str_mv Luna, Facundo; Antenucci, Carlos Daniel; Bozinovic, Francisco; Comparative Energetics of the Subterranean Ctenomys Rodents: Breaking Patterns; University of Chicago Press; Physiological and Biochemical Zoology; 82; 3; 5-2009; 226-235
1522-2152
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1086/597526
info:eu-repo/semantics/altIdentifier/url/https://www.journals.uchicago.edu/doi/epdf/10.1086/597526
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 University of Chicago Press
publisher.none.fl_str_mv University of Chicago Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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