There are many other old-growth forests across the continent. Each of these forests has a unique ecology, but all are under ...

Scientist finds Jeffrey pine trees at record mountain heights, suggesting climate-driven shifts in Sierra Nevada.

The Jeffrey pine, one of the iconic trees of the Sierra Nevada, appears to have eclipsed other pines to become the ...

This crazy leapfrogging of species challenges what we think we know about these systems reacting as the climate warms." Jeffrey pine trees are tolerant of both cold and drought, so while their ...

and becomes quite furrowed in older trees. The eastern white pine adds a ring of side branches and a terminal shoot yearly with age. The cones of this species are up to eight inches long, have ...

Sun Valley Resort has been recognized as a Whitebark Pine Friendly Ski Area—a designation bestowed on only seven other U.S.

This summer generation has never been reported for this species of beetle. Previous studies reported that in response to warmer temperatures, the mountain pine beetle has substantially increased its ...

Stewards of the Yale Toumey Forest plan to take down many more of the forest’s red pines over the next two years due to an ...

Pine trees, like oaks and magnolias, rely on the wind to spread their sneeze-inducing, eye-watering pollen. And the prevalence of these types of trees in South Carolina is partly to blame for the ...