scholarly journals Temperatures of Hibernacula and Changes in Body Composition of Arctic Ground Squirrels over Winter

1999 ◽  
Vol 80 (4) ◽  
pp. 1264-1276 ◽  
Author(s):  
C. L. Buck ◽  
B. M. Barnes
Keyword(s):  
Body Composition ◽  
Ground Squirrels ◽  
Arctic Ground Squirrels

Reproduction and nutrient reserves of arctic ground squirrels

1980 ◽  
Vol 58 (3) ◽  
pp. 416-421 ◽  
Author(s):  
David J. Kiell ◽  
John S. Millar
Keyword(s):  
Body Composition ◽  
Ground Squirrels ◽  
Caloric Value ◽  
Pregnancy And Lactation ◽  
Males And Females ◽  
The Mean ◽  
Total Fat ◽  
Arctic Ground Squirrels ◽  
Nutrient Reserves ◽  
Stored Reserves

Body composition, caloric value, and size of selected organs of arctic ground squirrels (Spermorphilus parryii) were examined seasonally and in relation to reproductive status in order to determine if females obtain nutrients for offspring from stored reserves prior to the availability of new vegetation. Seasonal changes in body composition were similar in males and females. Females showed a depletion of skeletal components, total fat, and caloric value during lactation. The mean reduction in caloric value between pregnancy and lactation (495 kcal; 1 cal = 4.1868 J) accounted for only 31% of the estimated 1600 kcal contributed to offspring by a female. Females must support offspring through an increased ingestion of food prior to the availability of new vegetation.

scholarly journals Habitat selection by arctic ground squirrels (Spermophilus parryii)

2010 ◽  
Vol 91 (5) ◽  
pp. 1251-1260 ◽  
Author(s):  
Oliver E. Barker ◽  
Andrew E. Derocher
Keyword(s):  
Habitat Selection ◽  
Ground Squirrels ◽  
Spermophilus Parryii ◽  
Arctic Ground Squirrels

MAPKs are differentially modulated in arctic ground squirrels during hibernation

2005 ◽  
Vol 80 (6) ◽  
pp. 862-868 ◽  
Author(s):  
Xiongwei Zhu ◽  
Mark A. Smith ◽  
George Perry ◽  
Yang Wang ◽  
Austin P. Ross ◽  
...  
Keyword(s):  
Ground Squirrels ◽  
Arctic Ground Squirrels

scholarly journals Interrelationships Among Timing of Hibernation, Reproduction, and Warming Soil in Free-Living Female Arctic Ground Squirrels

2012 ◽  
pp. 63-72 ◽  
Author(s):  
Cory T. Williams ◽  
Michael J. Sheriff ◽  
Franziska Kohl ◽  
Brian M. Barnes ◽  
C. Loren Buck
Keyword(s):  
Ground Squirrels ◽  
Free Living ◽  
Arctic Ground Squirrels

Landscape-scale habitat associations of small mammals on the western coast of Hudson Bay

2021 ◽  
Author(s):  
Kevin Hawkshaw ◽  
Lee Foote ◽  
Alastair Franke
Keyword(s):  
Small Mammals ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Distance Sampling ◽  
Habitat Associations ◽  
Ground Squirrels ◽  
Suitable Habitat ◽  
Western Coast ◽  
Water Index ◽  
Arctic Ground Squirrels

Availability of suitable habitat affects the distribution and abundance of Arctic fauna, influencing how species respond to climate change and disturbance from resource extraction in the region. We surveyed Arctic ground squirrels (Urocitellus parryii Richardson, 1825) using distance sampling transects and concurrently counted microtine rodent burrows. Abundance of Arctic ground squirrels and microtine burrows was positively correlated with terrain ruggedness. Microtine burrows were more abundant inland and in areas with freshwater, while Arctic ground squirrels were more often found at low elevation without freshwater. Arctic ground squirrel abundance was positively related to the normalized difference water index, a proxy for vegetation water content, while microtine burrows were weakly correlated with the normalized difference vegetation index. Our study highlights the habitat associations of ecologically significant small mammals in an underrepresented Arctic study area.

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