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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 , [ 1 ] and could therefore no longer be retained as a single genus.
A mating plug in a female Richardson's ground squirrel (Urocitellus richardsonii) A mating plug, also known as a copulation plug, [1] sperm plug, vaginal 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 genital ...
Ground squirrels are rodents of the squirrel family that generally live on the ground or in burrows, rather than in trees like the tree squirrels.The term is most often used for the medium-sized ground squirrels, as the larger ones are more commonly known as marmots (genus Marmota) or prairie dogs, while the smaller and less bushy-tailed ground squirrels tend to be known as chipmunks (genus ...
Download as PDF; Printable version; ... Help. Pages in category "Urocitellus" The following 15 pages are in this category, out of 15 total. ... Richardson's ground ...
A mating plug in a female Richardson's ground squirrel (Urocitellus richardsonii) Many reasons for the evolutionary adaptation of traumatic insemination as a mating strategy have been suggested. One is that traumatic insemination is an adaptation to the development of the mating plug, a reproductive mechanism used by many species.
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Richardson's Ground Squirrel or Flickertail, a North American ground squirrel in the genus Urocitellus North Dakota , nicknamed the "Flickertail State" SS Flickertail State , a crane ship in ready reserve for the United States Navy