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Busse, S.* ; Lutter, D. ; Heldmaier, G.* ; Jastroch, M. ; Meyer, C.W.

Torpor at high ambient temperature in a neotropical didelphid, the grey short-tailed opossum (Monodelphis domestica).

Naturwissenschaften 101, 1003-1006 (2014)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
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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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Body Temperature ; Marsupials ; Metabolic Rate ; Torpor; Body-temperature; Metabolic-rate; Hibernation; Mammals
Sprache englisch
Veröffentlichungsjahr 2014
HGF-Berichtsjahr 2014
ISSN (print) / ISBN 0028-1042
e-ISSN 1432-1904
Quellenangaben Band: 101, Heft: 11, Seiten: 1003-1006 Artikelnummer: , Supplement: ,
Verlag Springer
Verlagsort New York
Begutachtungsstatus Peer reviewed
POF Topic(s) 30201 - Metabolic Health
90000 - German Center for Diabetes Research
Forschungsfeld(er) Helmholtz Diabetes Center
PSP-Element(e) G-502200-001
G-501900-221
PubMed ID 25142634
Scopus ID 84919721714
Scopus ID 84906029976
Erfassungsdatum 2014-08-25