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Richardson's ground squirrel (Urocitellus richardsonii), also known as the dakrat or flickertail, is a North American ground squirrel in the genus Urocitellus.Like a number of other ground squirrels, they are sometimes called prairie dogs or gophers, though the latter name belongs more strictly to the pocket gophers of family Geomyidae, and the former to members of the genus Cynomys.
Urocitellus is a genus of ground squirrels. They were previously believed to belong to the much larger genus Spermophilus , but DNA sequencing of the cytochrome b gene showed that this group was paraphyletic to the prairie dogs and marmots , [ 2 ] and could therefore no longer be retained as a single genus.
Arctic ground squirrel, Urocitellus parryii [n 4] LC; Richardson's ground squirrel, Urocitellus richardsonii [n 4] LC; Townsend's ground squirrel, Urocitellus townsendii [n 4] VU. Townsend's ground squirrel, Urocitellus (townsendii) nancyae [12] [n 12] VU; Merriam's ground squirrel, Urocitellus canus [n 1] LC; Piute ground squirrel, Urocitellus ...
A mating plug in a female Richardson's ground squirrel (Urocitellus richardsonii) A mating plug, also known as a copulation plug, [1] vaginal plug, [2] sperm plug, or sphragis (Latin, from Ancient Greek: σφραγίς sphragis, "a seal"), is a gelatinous secretion used in the mating of some species. It is deposited by a male into a female ...
California ground squirrels deviating from a steady diet of nuts, seeds or grains was "shocking," said Jennifer E. Smith, study lead and associate professor of biology at UW-Eau Claire.
Eastern gray squirrel, Sciurus carolinensis introduced; Eastern fox squirrel, Sciurus niger; American red squirrel, Tamiasciurus hudsonicus; Uinta ground squirrel, Urocitellus armatus; Columbian ground squirrel, Urocitellus columbianus; Wyoming ground squirrel, Urocitellus elegans; Richardson's ground squirrel, Urocitellus richardsonii; Ord's ...
Squirrels can cache as many as 3,000 nuts each season, but remembering where all the nuts are stored seems impossible. Unlike most small mammals whose brains shrink during winter due to reduced ...
Franklin's ground squirrel, Poliocitellus frankinii; Fox squirrel, Sciurus niger; Eastern chipmunk, Tamias striatus; American red squirrel, Tamiasciurus hudsonicus; Richardson's ground squirrel, Urocitellus richardsonii; Spotted ground squirrel, Xerospermophilus spilosoma - accidental; Eastern gray squirrel, Sciurus carolinensis