Arousal from torpor in the chilean mouse-opposum (<i>Thylamys elegans</i>)

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dc.contributor.authorOpazo, JC
dc.contributor.authorNespolo, RF
dc.contributor.authorBozinovic, F
dc.date.accessioned2025-01-21T01:31:56Z
dc.date.available2025-01-21T01:31:56Z
dc.date.issued1999
dc.description.abstractWe examined the effect of norepinephrine injections on non-shivering thermogenesis (NST), rewarming rate, and metabolic cost during torpor arousal in warm- and cool-acclimated Chilean mouse-opposums, Thylamys elegans. Warm- and cool-acclimated animals did not display NST in response to NE injections. Values of VO2 (resting, after saline and NE injections) were not significantly different within treatments. Rewarming rates of warm-acclimated animals did not differ significantly from those in cool-acclimated animals. In contrast, the metabolic cost of torpor arousal was significantly affected by acclimation temperature. Warm-acclimated animals required more energy for arousal than cool-acclimated animals. Our study suggests that the main thermoregulatory mechanism during torpor arousal in this Chilean marsupial is shivering thermogenesis, and that its amount can be changed by thermal acclimation. (C) 1999 Elsevier Science B.V. All rights reserved.
dc.fuente.origenWOS
dc.identifier.issn1095-6433
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/97173
dc.identifier.wosidWOS:000082738500010
dc.issue.numero4
dc.language.isoen
dc.pagina.final397
dc.pagina.inicio393
dc.revistaComparative biochemistry and physiology a-molecular and integrative physiology
dc.rightsacceso restringido
dc.subjectThylamys elegans
dc.subjectmarsupial
dc.subjectthermal acclimation
dc.subjectmetabolic cost
dc.subjectrewarming rate
dc.subjectthermoregulation
dc.subjecttorpor arousal
dc.subjectcentral Chile
dc.subject.ods15 Life on Land
dc.subject.ods13 Climate Action
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa13 Acción por el clima
dc.titleArousal from torpor in the chilean mouse-opposum (<i>Thylamys elegans</i>)
dc.typeartículo
dc.volumen123
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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