NDLI: Basal blood glucose concentration in free-living striped mice is influenced by food availability, ambient temperature and social tactic

Content Provider	PubMed Central
Author	Carsten, Schradin Pillay, Neville Kondratyeva, Anna Yuen, Chi-hang Schoepf, Ivana Krackow, Sven
Copyright Year	2015
Abstract	Vertebrates obtain most of their energy through food, which they store mainly as body fat or glycogen, with glucose being the main energy source circulating in the blood. Basal blood glucose concentration (bBGC) is expected to remain in a narrow homeostatic range. We studied the extent to which bBGC in free-living African striped mice (Rhabdomys pumilio) is influenced by ecological factors with a bearing on energy regulation, i.e. food availability, abiotic environmental variation and social tactic. Striped mice typically form extended family groups that huddle together at night, reducing energetic costs of thermoregulation, but solitary individuals also occur in the population. We analysed 2827 blood samples from 1008 individuals of seven different social categories that experienced considerable variation in food supply and abiotic condition. Blood samples were taken from mice in the morning after the overnight fast and before foraging. bBGC increased significantly with food plant abundance and decreased significantly with minimum daily ambient temperature. Solitary striped mice had significantly higher bBGC than group-living striped mice. Our results suggest that adaptive responses of bBGC occur and we found large natural variation, indicating that bBGC spans a far greater homeostatic range than previously thought.
Related Links	http://dx.doi.org/10.1098/rsbl.2015.0208
Starting Page	20150208
File Format	PDF
ISSN	17449561
e-ISSN	1744957X
Journal	Biology Letters
Issue Number	5
Volume Number	11
Language	English
Publisher	The Royal Society
Publisher Date	2015-05-20
Access Restriction	Open
Rights Holder	The Royal Society
Subject Keyword	Agricultural and Biological Sciences (miscellaneous) Agricultural and Biological Sciences(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Agricultural and Biological Sciences

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