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WISDOM, Mont. — Dean Peterson, a rangy fourth-generation rancher with a handlebar mustache, is used to factoring in all sorts of challenges as he works his vast spread in the Big Hole Valley.Summer wildfires that can sweep down the pine-blanketed mountains to the west, harsh winters that can endanger his thousand-plus head of cattle.
Yet in the back of his mind these days is a threat most of his forefathers never faced: grizzly bears. Settlers pushing West had all but exterminated the hulking predators by the time Peterson’s great-grandfather arrived here in the late 1800s.
A year ago, however, a trail camera in the nearby forest snapped a grainy photo of a grizzly crossing a stream, marking the first confirmed sighting in the valley in a century. Then in May, Peterson was stunned to see one lope across a snow-dusted road as he drove a four-wheeler a few miles from his property.
“It will happen,” the 51-year-old rancher says of the looming presence of grizzlies. And he is equally matter of fact about what they’ll mean for both him and his neighbors. “It will be more difficult to run cattle.”
As Yellowstone grizzly bears expand their geographic range, can they co-exist with humans? (Whitney Shefte/The Washington Post)
Biologists and their maps agree: The bears are coming to southwestern Montana. Since 1975, when this icon of the American West was listed as an endangered species, grizzlies in the Yellowstone National Park ecosystem to the south have more than quadrupled their range and population. Well to the north, grizzlies in the Glacier National Park region also are spreading out.
The bear pioneers are now migrating so far that they are viewed as the vanguard of a possible union between the two populations, a connection that could help ensure the bears’ health and genetic diversity. At some point, conservationists hope, grizzlies might even set up shop in the Idaho wilderness, recolonizing a small portion of the vast territory they once occupied.
But as grizzlies fan out from the parks that have long been their refuges, they are encountering more people, roads and development — and more temptation in the form of trash and livestock. While their presence raises the risk to humans and makes activities like hunting and hiking more perilous, the reality is that bears tend to be on the losing end of interactions with humans. At least 58 died in 2016 and 51 as of mid-November this year, most killed by people who accidentally hit them with cars, crossed paths with them while hunting or shot them for harming animals or property.
Americans have spent four decades and millions of dollars to rescue grizzlies from the brink of extinction. Now, experts say, one big question is whether people can live alongside them.
“They’re big, they can be dangerous, and they compete with us for some food resources,” said Steve Primm, a conservationist who has forged relationships with Peterson and other ranchers in the Big Hole Valley, trying to get them to see the animals as something with which they can coexist. “If we’re living with grizzly bears, then that’s showing that we’ve got quite a strong commitment to living with the natural world.”
Conflicts with people helped to drive the Yellowstone grizzly population to as low as 136 in the 1970s, according to government figures. It has since officially rebounded to around 700, and federal biologists say the number could be as high as 1,000. Such progress prompted the Interior Department to delist that region’s bears this summer, with Interior Secretary Ryan Zinke, a Montana native, hailing the turnaround as proof that the Endangered Species Act works.
Lawsuits are now seeking to overturn the government’s action, citing the Yellowstone population’s genetic isolation and the spiritual importance of the species to Native American tribes. Some also point to the grizzlies’ growing footprint and contend that climate change has caused natural food sources to dwindle, putting the bears in danger as they pursue elk gut piles that hunters leave in woods in the fall or calves born on ranches in the spring.
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| Dean Peterson is a fourth-generation rancher in Montana’s Big Hole Valley, where grizzlies are being seen for the first time in a century. (Whitney Shefte/The Washington Post) | A grizzly bear feasts on a bison carcass in Yellowstone National Park’s Hayden Valley in early September. (Deby Dixon/For The Washington Post) |
Frank van Manen, a U.S. Geological Survey biologist who leads the government’s Interagency Grizzly Bear Study Team, said research does not support that argument. The Yellowstone ecosystem has reached its “carrying capacity,” he said — forcing male grizzlies, in particular, to seek more space. Their movement is creating new challenges. “Is it realistic to expect this population to expand beyond where it is now?” van Manen asked. “It becomes more of a society question. It has to do with tolerance, and it has to do with where do we want grizzly bears?”
Delisting could entail a new risk, given the possibility in all three states in the Yellowstone ecosystem — Montana, Wyoming and Idaho — of allowing grizzly trophy hunting at some point. While federal scientists say limited hunts would not necessarily harm the overall population, critics decry what they see as an unnecessary additional threat.
Of prime concern to some are the far-flung bears on the ecosystem’s periphery in Montana, the ones that could meet up with their brethren to the north. The bear photographed ambling through the narrow lodgepole pines near Peterson’s ranch last year is among those that scientists think could eventually help make a historic link.
The rancher does not see it in such sweeping terms. “I just look at it as another one of God’s creations,” he said, sitting in his living room, where a silky charcoal wolf pelt and the heads of other animals he has bagged adorn the walls. “It’s just another species out there, and yeah, it’s had a hard time. It got hunted near extinction, because it was hard for people to live around.”
That doesn’t have to be the case in the 21st century, conservationists say. A project in the Blackfoot River Valley, south of Glacier, has for years used electric fencing, carcass removal and range riders — people who sweep the land, monitoring for bear activity — to reduce conflicts. Property owners have employed similar techniques in an area just north of Yellowstone. One ranch there, its fields visible from a public road, has even become a prime grizzly viewing spot.
“I’ve seen a lot of bears,” said van Manen, smiling in the late-afternoon light as he watched a female grizzly and two cubs romp down a hill on the ranch and then stand on their hind legs to scan the horizon. “But I get excited every time.”
Beaverhead County, where Peterson’s ranch sits, is a different scenario. The local dump consists of two fly-swarmed open containers that could be an accessible bear buffet. Bear-resistant garbage cans are not the norm. Elk hunters, who try to obscure their scent and walk quietly through the woods there, aren’t as accustomed to carrying bear spray despite studies showing it is a powerful deterrent that can save human and bear lives.
And as the biggest beef-producing county in the state, Beaverhead has lots of cattle grazing on ranches and in nearby forests. Dead livestock is typically left to decompose or is buried; either way, the carcass can attract grizzlies.
The potential for problems worries Primm, who wants to see the bears “get off on the right foot” in the Big Hole Valley. He knows grizzlies that find one food source near humans will come back for more.
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(The Washington Post)