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dc.contributor.author
Luna, Facundo
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dc.contributor.author
Antenucci, Carlos Daniel
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dc.contributor.author
Bozinovic, Francisco
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dc.date.available
2024-07-29T15:32:21Z
dc.date.issued
2009-05
dc.identifier.citation
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
dc.identifier.issn
1522-2152
dc.identifier.uri
http://hdl.handle.net/11336/241149
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
University of Chicago Press
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Energetics
dc.subject
Ctenomys genus
dc.subject
metanolic rates
dc.subject
distribution
dc.subject.classification
Otros Tópicos Biológicos
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Comparative Energetics of the Subterranean Ctenomys Rodents: Breaking Patterns
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-07-10T14:28:12Z
dc.journal.volume
82
dc.journal.number
3
dc.journal.pagination
226-235
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Chicago
dc.description.fil
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
dc.description.fil
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
dc.description.fil
Fil: Bozinovic, Francisco. Pontificia Universidad Católica de Chile; Chile
dc.journal.title
Physiological and Biochemical Zoology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1086/597526
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.journals.uchicago.edu/doi/epdf/10.1086/597526
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