Conservationists are appealing a federal judge's ruling that rejected attempts to force the government to protect a high-elevation pine tree whose nuts are a food source for threatened grizzly bears.
A federal judge has ruled against conservationists who sought to force the government to protect a high-elevation pine tree whose nuts are a food source for threatened grizzly bears.
Deep cold needs to stick around for a long time to kill mountain pine beetles, which have a natural antifreeze that protects them in the winter.
Jesse Logan, a retired Forest Service ecologist, talks about the effects of mountain pine beetle outbreaks on whitebark pine trees in 2013.
BOZEMAN — Grizzly bears in the greater Yellowstone ecosystem have a varied diet and are minimally affected by the decline in the number of whitebark pine trees, federal research found.
The number of grizzly bear deaths declined by more than 50 percent this year in the greater Yellowstone ecosystem, according to the Interagency Grizzly Bear Study Team.
LOST TRAIL – High up on a Bitterroot mountain ridge in the very tip-top of a spindly pine, Gabe Thorne is doing his part to save a species.
TOM MINER BASIN — The soaking wet hikers had several theories about why Jesse Logan and Wally Macfarlane were carrying hatchets in their backpacks: To fend off bears? To end the misery of the clammy cold hike? To lop off frostbitten limbs?
Hikers venture up a ridge on the way to the higher elevations where whitebark pine trees thrive, a harsh environment where they are a keystone species.
The hike started at the B Bar B Ranch in the Tom Miner Basin and quickly climbed.
University of Utah researcher Wally Macfarlane said effective climate change policy is needed worldwide to prevent problems like the loss of whitebark pine trees.
Pam and Bill Bryan of Bozeman trudge up a mountainside in the Tom Miner Basin during a field trip on Wednesday to learn more about whitebark pine trees and the threats they face.
Whitebark pine trees are long-lived, despite the fact that they grow at high elevations where summers are short, winters are long and there is little good soil.
JACKSON — Biologists say a bad year for whitebark pine cone output could lead to more hunter-grizzly bear conflicts in northwest Wyoming this fall.
Human-bear encounters this fall — especially for hunters in grizzly bear habitat — could be more likely in northwest Wyoming since whitebark pine cone production was down, the Wyoming Game and Fish Department is warning.
GRANITE BUTTE — The pine cone in Amanda Milburn’s hand is odd. It almost looks lacquered, with a dark purple-red color and thick scales that are tightly bound to one another. The “umbo” — that’s what you call the little tips on the scales — is a light brown. Overall, the cone is about the si…
A three day guided and catered educational tour on whitebark pine and safe travel in avalanche country will be held in Cooke City March 8-10 at the Woody Creek Cabin.
MAMMOTH HOT SPRINGS, Wyo. — In the ongoing deliberations over federal protections for Yellowstone-area grizzly bears, debate often focuses on a fixed number of total bears living in the region.
Whitebark pine trees have no defense against mountain pine beetles, which recently cycled through an epidemic in the West that was unprecedented in human history.
Phil Townsend, second from right, has spent the past six years working in the Greater Yellowstone Ecosystem.