Gunnison's prairie dog individuals of the prairie dog populations. Gunnison's prairie dog Gunnison's prairie dog ("Cynomys gunnisoni") is one of five species of the prairie dog. This species belongs to the squirrel family of rodents, and are predominantly related to the North American and Eurasian ground squirrels. Gunnison's prairie dogs are primarily distributed in the Four Corners region of the United States. Gunnison's prairie dogs are 12 to 14 inches (30 to 37 centimeters) in length and have tails that measure 1.25 to 2.25 inches (3 to 6 centimeters). This species weighs from 1.5 to 2.5 lbs (0.5 to 1 kg). On average,
Black-tailed prairie dog ("Carex duriuscula"), sixweeks grass ("Vulpia octoflora"), and scarlet globemallow. Grazing by black-tailed prairie dogs may also improve the nutritional qualities of some plants. On a shortgrass prairie near Fort Collins, Colorado, plant species diversity was greater inside black-tailed prairie dog colonies than outside of colonies, and perennial grasses such as buffalo grass and forbs increased. While black-tailed prairie dog colonies at Wind Cave National Park typically had lower levels of plant biomass and were dominated by forbs, plants growing on prairie dog colonies had higher leaf nitrogen concentrations than plants in mixed-grass prairie outside colonies. Foraging by black-tailed prairie dogs