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Open Access Green as soon as Postprint is submitted to ZB.
Torpor at high ambient temperature in a neotropical didelphid, the grey short-tailed opossum (Monodelphis domestica).
Naturwissenschaften 101, 1003-1006 (2014)
The grey short-tailed opossum, Monodelphis domestica, has been an established research animal for more than five decades, but relatively, little is known about its thermophysiology. Here we studied core body temperature (T b) and metabolic rate (MR) of female adult M. domestica housed in the laboratory at an ambient temperature (T a) of 26 °C. In expanding previous reports, the average recorded core T b of M. domestica was 34.3 °C. The T b of an individual M. domestica can drop below 30 °C (minimal T b: 28.6 °C) accompanied by a reduction in MR of up to 52 % even while having ad libitum access to food. These findings demonstrate for the first time the presence of spontaneous torpor in M. domestica. Metabolic suppression at relatively high T a and T b furthermore broadens our perspective on the use of torpor as a metabolic strategy not just restricted to cold climates.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Body Temperature ; Marsupials ; Metabolic Rate ; Torpor; Body-temperature; Metabolic-rate; Hibernation; Mammals
ISSN (print) / ISBN
0028-1042
e-ISSN
1432-1904
Journal
Naturwissenschaften, Die
Quellenangaben
Volume: 101,
Issue: 11,
Pages: 1003-1006
Publisher
Springer
Publishing Place
New York
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Diabetes and Obesity (IDO)