Effects of Sex, Litter Size, and Heterozygosity on Juvenile Weight in Black-Tailed Prairie Dogs (Cynomys ludovicianus)

1988 ◽  
Vol 69 (3) ◽  
pp. 611-614 ◽  
Author(s):  
D. W. Foltz ◽  
J. L. Hoogland ◽  
G. M. Koscielny
2017 ◽  
Vol 79 (6) ◽  
pp. 979-983 ◽  
Author(s):  
Isao MATSUMOTO ◽  
James Kenn CHAMBERS ◽  
Yasutsugu MIWA ◽  
Hiroyuki NAKAYAMA ◽  
Kazuyuki UCHIDA

1977 ◽  
Vol 42 (2) ◽  
pp. 295-299 ◽  
Author(s):  
J. D. Hamilton ◽  
E. W. Pfeiffer

Black-tailed prairie dogs (Cynomys ludovicianus) were deprived of food and water for several weeks during the fall and winter in a cold-room hibernaculum (Ta 5–8 degrees C), and for several days at room temperature during the summer. Body temperatures (Tb) were determined periodically in nine animals by radiotransmitters implanted in the abdomen. Animals deprived of food and water in the summer were killed when maximum urine concentration was achieved. Eight animals in the winter were active when killed after 7–35 days in the hibernaculum with Tb between 18 and 36 degrees C. Five animals that became torpid periodically in the winter were killed after 19–42 days in the hibernaculum when their Tb indicated torpor (Tb less than 13 degrees C). Active animals in the summer and winter possessed pronounced renal corticomedullary urea and sodium concentration gradients. Torpid animals lacked these gradients and had lower urine and plasma osmotic concentrations than active animals. Plasma urea values and terminal osmolal U/P ratios were lowest in torpid prairie dogs.


2010 ◽  
Vol 124 (3) ◽  
pp. 209 ◽  
Author(s):  
Daniel S. Licht

There is a paucity of scientific literature describing Bobcat (Lynx rufus) hunting strategies. I document 13 observations of Bobcats hunting Black-tailed Prairie Dogs (Cynomys ludovicianus) in western South Dakota. In all cases the Bobcats stationed themselves next to a prairie dog mound in an attempt to ambush prairie dogs emerging from their burrows. In eight cases the Bobcats successfully captured a prairie dog emerging from the burrow, in one case the Bobcat turned and captured a prairie dog that had walked up behind it, and in the other cases the Bobcats lunged at the burrow openings, but did not capture a prairie dog. There were two variations of the tactic: in some cases Bobcats entered a colony prior to prairie dog emergence and stationed themselves next to a mound, whereas in other cases Bobcats stationed themselves next to a burrow that a prairie dog had just escaped to. One Bobcat appeared to have waited next to the same mound for at least 7.5 hr. Prairie dogs may comprise a large portion of a Bobcat's winter diet in landscapes where prairie dog colonies exist in close proximity to badlands or woody cover.


2010 ◽  
Vol 55 (1) ◽  
pp. 50-56 ◽  
Author(s):  
Alison L. Pruett ◽  
Clint W. Boal ◽  
Mark C. Wallace ◽  
Heather A. Whitlaw ◽  
James D. Ray

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