Host animals A B C Daurian ground squirrel 1 4962 4963 Siberian chipmunk 1 4965 4966 1 4964 4965 Tricolored squirrel 2 4977 1 4977 American red squirrel 1 4971 Southern flying squirrel 1 4972 4973 Columbian ground squirrel 1 4957 4958 Richardson's ground squirrel
2 4959 4960 1 4954 4959 1 4954 4955 Fat-tailed gerbil 3 Golden spiny mouse 1 Fat sand rat 1 Bushy-tailed jird 1 1 1 Large Egyptian gerbil 1 Greater Egyptian jerboa 1 4975 4976 1 Lesser Egyptian jerboa 1 GenBank accession nos.
Time patterns and metabolic rates of natural torpor in the Richardson's ground squirrel
Yearly variations in the population dynamics of Richardson's ground squirrels
Bald Eagles, however, have been noted to prey on Richardson's Ground Squirrels
(Urocitellus richardsonii; Caton and others 1992) and Rock Squirrels (Grubb 1995).
Hunting techniques and tool use by North American badgers preying on Richardson's ground squirrels
. Journal of Mammalogy 85:1019-1027.
Pollard and colleague Daniel Blumstein examined rodent species that included California ground squirrels, Olympic marmots, yellow-bellied marmots, black-tailed prairie dogs, white-tailed prairie dogs, thirteen-lined ground squirrels, Belding's ground squirrels, and Richardson's ground squirrels
The animal rights demonstration is fitting because the seventy-one inert characters that populate the scenes are all stuffed Richardson's ground squirrels
. They're dressed in miniature costumes to match their painted backdrops and are paired with props from locals' toy collections.
She said: "We have a Gambian giant pouched rat, Richardson's ground squirrels
, sugar gliders, lemmings and African pygmy mice.
Also known as Richardson's ground squirrels
, the critters are so numerous one farmer claims that, when they're moving across a field, a casual observer might assume the ground itself were moving.
Sexual differences in hibernaculum contents of Richardson's ground squirrels
. In: Carey, C., Floarnt, G.L., Wunder, B.A., and Horwitz, B., eds.
Squirrels: Ultrasound and infrared Richardson's ground squirrels
appeared to use ultrasound when calling out in response to a disturbance (166: 14), and tests revealed that California ground squirrels broadcast an infrared signal when confronting a rattlesnake (165: 403).
Studies of 15 wild Richardson's ground squirrels
, which live in burrows, found they emit pure ultrasonic frequencies of about 50khz.