Document Detail


A preliminary study on the seasonal body temperature rhythms of the captive mountain hare (Lepus timidus).
MedLine Citation:
PMID:  18329637     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The mountain hare (Lepus timidus) is a year-round active herbivore adapted to survive the boreal winter. Captive mountain hares (N=4) were implanted with intraabdominal thermosensitive loggers to record their core body temperature (T(b)) for a year and during food deprivation (8-48h) in summer and winter. The average T(b) was 38.7+/-0.01 degrees C in summer and 38.3+/-0.01 degrees C in winter. The yearly T(b) correlated positively with the ambient temperature. The 24-h T(b) was the highest from late scotophase to early photophase in summer and winter and the lowest during middle-late photophase in summer or during early-middle scotophase in winter. The range of the 24-h oscillations in T(b) increased in three animals in winter. Food deprivation did not induce hypothermia in summer or winter. These preliminary data suggest that the mountain hare can spare a modest amount of energy with the wintertime reduction in T(b).
Authors:
Petteri Nieminen; Anne-Mari Mustonen
Related Documents :
23239347 - Assembly and function of the botulinum neurotoxin progenitor complex.
3806517 - Food availability and secondary sex ratio variation in wild and laboratory house mice (...
663647 - The stomach signals satiety.
1981487 - Effects of antibodies to dynorphin a and beta-endorphin on lateral hypothalamic self-st...
12071687 - "you will eat all of that!": a retrospective analysis of forced consumption episodes.
25036037 - Reported high salt intake is associated with increased prevalence of abdominal aortic a...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-02-06
Journal Detail:
Title:  Cryobiology     Volume:  56     ISSN:  1090-2392     ISO Abbreviation:  Cryobiology     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-03-26     Completed Date:  2008-04-18     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0006252     Medline TA:  Cryobiology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  163-7     Citation Subset:  IM    
Affiliation:
University of Joensuu, Faculty of Biosciences, P.O. Box 111, FI-80101 Joensuu, Finland. pniemine@cc.joensuu.fi
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Animals
Body Temperature Regulation / physiology*
Female
Food Deprivation
Hares / physiology*
Hypothermia / etiology
Male
Seasons

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Peripheral injection of ghrelin induces Fos expression in the dorsomedial hypothalamic nucleus in ra...
Next Document:  Requirement for Wnt and FGF signaling in Xenopus tadpole tail regeneration.