The Gunnison’s Prairie Dog
Architect and Guardian of the Grassland Ecosystem
In the American Southwest, we seem to have a love-hate relationship with the prairie dog.
To environmentalists and nature lovers, these small, highly social animals are endearing and indispensable. They are the life of the grassland party, maintaining biodiversity, enriching the soil, and providing food and shelter for a host of other creatures. But to farmers and landscapers, prairie dogs can be a nightmare. Their extensive burrow systems can damage crops, undermine infrastructure, and create unsightly landscaping challenges. Add that to their reputation for spreading diseases that can affect livestock, and it’s no small wonder they have earned a mixed reputation.
However, the Gunnison’s prairie dog (Cynomys gunnisoni) is no ordinary rodent. Named after Captain John W. Gunnison, an American explorer and surveyor, this medium-sized member of the squirrel family plays a vital role in the Southwest’s grassland ecosystem. First identified as a distinct species in 1858 at the Smithsonian Institution, the Gunnison’s Prairie dog is found across Utah, Colorado, New Mexico, Arizona, and northern Mexico. Their light-brown coats, sprinkled with black-tipped hairs, and their distinctive white-tipped tails make them easy to recognize.
Gunnison’s prairie dogs are grassland architects, constructing elaborate “prairie dog towns” with burrows that can house hundreds of residents. These underground networks are more than mere shelters; they are masterpieces of engineering, complete with specialized chambers for nesting, food storage, and even waste management. Above ground, the prairie dogs live in complex social groups, each burrow ruled by a dominant male who oversees a harem of females and their offspring. Think of it as a soap opera set on the grasslands.
During warm weather, you will spot these creatures busily foraging, grooming, or scanning the horizon for predators. Their keen peripheral vision—thanks to eyes on the sides of their heads—helps them keep tabs on threats like hawks, foxes, or snakes. In cooler weather, they are active throughout the day, and come inclement weather, they retreat to their burrows. From November to March, they enter a state of hibernation, surviving on stored fat reserves and slowed metabolisms.
One of the most fascinating aspects of the Gunnison’s prairie dog is its sophisticated communication system. With an array of vocalizations, including screams, barks, and whistles, these rodents can issue warnings, attract mates, and even delineate territory. Their barks are like coded messages, detailing predator types and locations. Remarkably, they also have an “all-clear” signal and employ up to 11 distinct warning calls. Dr. Con Slobodchikoff, a professor emeritus at Northern Arizona University, studied their vocalizations extensively and concluded that their communication is so nuanced, it qualifies as a language—a linguistic achievement in the animal kingdom.
Despite their ecological importance, Gunnison’s prairie dogs face numerous threats, including habitat destruction, predation, and disease. As grasslands are converted for agriculture, urban development, and energy projects, these keystone species find their homes increasingly fragmented. Efforts to protect them have included habitat restoration, predator management, and even captive breeding programs. But with many people still viewing them as pests, these initiatives often face significant resistance.
One notable conservation effort took place in 2018 in Flagstaff, Arizona. When plans for a new hotel threatened a local prairie dog colony, conservationists with Habitat Harmony relocated 105 animals to a new site. Ironically, when the hotel project was later canceled, enough prairie dogs were still around to reclaim their original territory. It is a testament to their resilience and adaptability.
Fun facts you might have missed: Gunnison’s prairie dogs are not just ecosystem engineers but also dieticians for the grasslands. Their foraging helps control plant growth, promoting a balance that benefits the entire habitat. They are also prey for numerous species, from golden eagles and ferrets to badgers, making them a critical link in the food web.
So, whether you see them as charming stewards of the grasslands or pesky invaders of your fields, there is no denying the Gunnison’s prairie dog’s role in the circle of life. They are not just surviving in the American Southwest; they are thriving, shaping, and sustaining an ecosystem that is as intricate as their burrows.
See more Gunnison’s Prairie Dog pictures at the Gunnison’s Prairie Dog Gallery.
Jeff Goulden is a nature, landscape, wildlife photographer and writer based in Flagstaff, Arizona. His work has appeared in Audubon, National Geographic, Nature Conservancy, Wilderness Society and other publications.
See more of Jeff's photography at www.JeffGouldenPhotography.com. Downloads are available at Getty Images. Selected fine art prints and other unique photo products are available at Fine Art America.