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The surprising role prairie dogs play in saving ecosystems

Often seen as pests, prairie dogs prove to be crucial for grassland ecosystems and the survival of endangered species.

prairie dogs bumping noses

Kathy Milani/Humane World for Animals

Ask any animal lover about prairie dogs and they’ll probably smile, imagining the small mammals standing on their hind legs and surveying the grasslands. They’re undeniably cute, but they’re also contentious. In fact, prairie dogs have been labeled one of the most controversial and widely misunderstood wildlife species in North America.

Lindsey Sterling Krank, program director of prairie dog conflict resolution at Humane World for Animals, hopes that will change. Slowly society has been re-examining why we view certain species as pests. Over the past few years, beavers have evolved from “nuisances” to vital players in protecting wetlands. Prairie dogs play a similar role in North America’s grasslands—one of the most endangered ecosystems in the world—but they’re struggling to shed their bad reputation. 

Evolving threats to prairie dogs

Before 1800, billions of prairie dogs lived on the Great Plains spanning from the north, in what is today Canada, to Mexico in the south. That changed after European settlers began to colonize the American West in the late 1800s, converting Indigenous land for agriculture. Prairie dogs were seen as pests who competed with cattle for grass to graze and were killed in massive numbers. Making matters worse, in the early 1900s, humans brought plague into the U.S. through ships with infected rats on board. Plague reached prairies shortly after and has continued to hit prairie dog populations hard since then. Because prairie dogs live in close-knit communities, plague outbreaks can quickly spread and kill off entire colonies.

 

Numerous prairie dogs stand outside their burrows with several burrowing owls on the Colorado prairie in 1893.

Allen G. Wallihan/Hoofs, claws and antlers of the Rocky Mountains, by the camera. Photographic reproductions of wild game from life

A burrowing owl (bottom right) stands next to a prairie dog in a bustling prairie dog town in 1893 in northwestern Colorado.

Today, prairie dog populations have declined an estimated 87% to 99% depending on the species. Two of the five species, the Utah prairie dog and Mexican prairie dog, are endangered. Grasslands continue to be rapidly converted for agriculture and development, and prairie dogs now inhabit less than 5% of their historic range. Climate change is shrinking their habitat even further as the southern part of their range becomes too dry. And while the Utah and Mexican prairie dogs are protected under national laws in their home ranges, other populations are still being lethally controlled through shooting, poisoning and even wildlife killing contests.

Young prairie dog paws their mom's nose in South Dakota, USA

Much of the current tension between prairie dogs and people occurs on western public lands where ranchers commonly leave farm animals out to graze, says Sterling Krank. Many ranchers still view prairie dogs as competing with cattle for grass and think their burrows pose a tripping hazard for the bovines. Landowners may also dislike prairie dogs because of the dirt patches they create. And the association of prairie dogs with plague that killed millions of Europeans in the Middle Ages can heighten negative views.

But Sterling Krank emphasizes that prairie dogs and cattle can share the landscape. Some studies even suggest cattle prefer to graze on prairie dog towns because the native rodents encourage the growth of nutritious plants. Droughts, which are becoming increasingly severe due to climate change, are a major factor in reducing the availability of grazing grasses. During years with normal to high levels of rain, “usually there's very little to no competition between livestock and prairie dogs,” says Ana Davidson, a research scientist at Colorado State University.

Prairie dogs are vital players

Far from being destructive pests, prairie dogs play a crucial role in their ecosystem as both a keystone species and ecosystem engineers. Keystone species play a disproportionately large role in maintaining the functioning of their ecosystem. Without them, their ecosystem would change substantially. Ecosystem engineers modify the availability of resources for other species.  

Remarkably, around 170 species benefit from prairie dogs’ services.

Prairie dogs create and engineer a diverse landscape that attracts a wide range of species. “You can kind of picture a prairie dog colony representing this island of unique open grassland habitat dotted with these burrow systems and surrounded by a sea of grass,” says Davidson.

three black footed ferrets peaking their heads above ground

Wendy Shattil/Alamy Stock Photo

Black-footed ferrets are an endangered species that rely on prairie dogs as their primary food source. They also use prairie dog burrows to house their young.

When prairie dogs eat grasses, they promote the growth of new, nutritionally dense grass that benefits other grazing species such as bison, bighorn sheep and pronghorn. Their grazing also encourages flowers to grow, attracting pollinators such as bees and butterflies to the area. 

Everyone from swift foxes, badgers and burrowing owls to tiger salamanders and insects take advantage of prairie dog burrows, too. “There’s not a lot of above-ground habitat [in grasslands] for animals to seek for shelter and make their homes in, and so, the deep and extensive burrow systems that prairie dogs create provide homes for all kinds of animals,” says Davidson. As extreme weather becomes more prevalent, these habitats offer increasingly important protection from heat and cold.  

Prairie dogs themselves are food for predators such as swift foxes, bobcats, coyotes and, crucially, black-footed ferrets—one of North America’s most endangered mammals. The vast majority of their diet is made up of prairie dogs, and they live in abandoned burrows where they can safely raise their young and hide from predators. Black-footed ferrets are teetering on the edge of extinction, and scientists are working hard to boost their populations.  

“We believe the single, most feasible action that would benefit black-footed ferret recovery is to improve prairie dog conservation,” says the U.S. Fish and Wildlife Service’s 2013 black-footed ferret recovery plan.

An illustration shows prairie dogs at the top of their burrow and an inside look at their tunnels. Raptors, black-footed ferrets, pronghorns, burrowing owls and other animals populate the prairie and tunnels around the prairie dogs.

Illustration by Rachel Stern

1. Animals like raptors and bobcats eat prairie dogs. In fact, prairie dogs compromise around 90% of black-footed ferrets’ diet. 
2. Prairie dog tunnels provide habitat for burrowing owls, tiger salamanders, endangered black-footed ferrets and many other species. 
3. Through their digging, prairie dogs aerate the soil and redistribute nutrients. 
4. Prairie dog burrows allow water to penetrate the ground and help prevent the land from becoming degraded. 
5. Through their grazing, prairie dogs encourage the growth of flowers, which provides food for pollinators. 
6. Prairie dog grazing encourages new, nutritionally dense grasses to grow, attracting grazers like bison and bighorn sheep to the area. 

For the birds, for the ecosystem

Prairie dogs also provide vital services to grassland birds, who are declining more rapidly than any other group of birds in North America. As apex predators, raptors such as golden eagles, bald eagles and hawks eat prairie dogs. “If we're losing prairie dogs, that's going to have knock-on effects on raptors in terms of them being able to find enough prey to support their young, to support themselves," says Andrew Dreelin, an ornithologist and fellow at the Smithsonian Great Plains Science Program.

Mountain plovers—a bird species that has dwindled by over 80% since the mid-1960s—lay their eggs on the dirt patches created by prairie dogs and eat the insects attracted to prairie dog scat. The decline in prairie dog populations is considered one of the major threats to plovers.

A horned lark surveys the landscape from a well-marked stone on Thunder Basin National Grasslands, Wyoming, at the site of a prairie dog relocation

Dave Showalter

A horned lark surveys the landscape from a well-marked stone on Thunder Basin National Grasslands, Wyoming, United States. The area is rich in bird diversity and was the site of the first relocation of prairie dogs from private to public lands.

Researchers are starting to uncover other ways prairie dogs help grassland birds. As part of Dreelin’s PhD research, he studied how prairie dogs impact the breeding success of birds.  

His research found that chestnut-collared longspurs, whose populations have declined 87% since the mid-1960s, have larger chicks on prairie dog colonies, meaning the chicks are more likely to survive. Horned lark chicks left their nests earlier on prairie dog towns, which decreases their chances of being preyed upon. “Both [species are] kind of getting these really subtle but important benefits to their growth and development,” Dreelin says.

In a study published in June 2025, Dreelin, along with other researchers, made another remarkable discovery. Female long-billed curlews eavesdrop on alert calls prairie dogs use to warn each other that predators are nearby and then hide themselves and their nests.

Then there’s everything prairie dogs do for the ecosystem itself. By building burrows, they aerate the soil, which allows water to penetrate the ground and helps prevent the land from becoming degraded. Prairie dogs’ digging also redistributes nutrients and fertilizes the soil. And their grazing encourages more plant diversity.

Lindsey Sterling Krank holding a prairie dog.

Kathy Milani/Humane World for Animals

Prairie dog populations have declined by an estimated 87% to 99%, but the efforts of Lindsey Sterling Krank and her team have saved thousands.

Changing tides for prairie dogs

Despite the vast benefits prairie dogs provide, it’s often difficult to convince people and governments they’re worth protecting. Davidson says she has seen a greater public understanding and acceptance of these animals since she started working on prairie dog issues almost 30 years ago, but there’s still a long way to go.

Prairie dogs continue to face threats such as poisonings and shootings, habitat loss and plague. If prairie dog populations decline further, wildlife experts warn that other species will also suffer. Research has found that when prairie dog populations collapse, species such as ferruginous hawks, American badgers, swift foxes and mountain plovers nearly disappear as well.

This is why Sterling Krank is working to get local, state and federal governments to promote coexistence between people and prairie dogs. Prairie dogs are a necessary part of grassland ecosystems, she says. “Love them or hate them, we got to have them.”

All Animals summer 2025 cover and feature spread on the macaw release

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