Scientists examined how growth rates in the trees changed over 91-year period. As warm, dry conditions continue in the future, fewer Douglas firs expected to grow Growth slowed across species’ range, ...

Long before Vancouver's Shangri-La and Harbour Centre defined the city's skyline, giant evergreen trees towered over those who dared step foot inside the rugged wilderness. The Douglas-fir was king.

When Brian French learned last week that the Doerner Fir was burning, he could think of only two reasons why: Either lightning had struck the enormous conifer in coastal Oregon — or someone had set it ...

After more than a century of logging around it, the world's tallest known Douglas fir still stands 327 feet in a remote part of east-central Coos County. The Doerner Fir was measured with great ...

Federal officials are enlisting arborists and other tree experts as they scramble to develop a plan to protect one of the world’s tallest non-redwood trees from losing a significant chunk of its ...

As climate change pushes Europe’s native forests to their limits, the North American Douglas-fir (Pseudotsuga menziesii) is emerging as a potential climate-resilient candidate. But could this ...

courtesy of the City of Ashland In Southern Oregon, Douglas firs are dying. And climate change is making the problem worse with more severe droughts and hotter temperatures. About 20% of Douglas firs ...

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In 2008, scientist Bryan Black took core samples the diameter of a pencil from a forest near the north Oregon coast. Most of the trees were hemlocks and Douglas fir that had been undisturbed for about ...

Douglas-fir (Pseudotsuga menziesii) is one of the premier species of the Western forests. Not only is the wood exceptionally strong for its weight, but the trees are abundant. Trees can grow over 250 ...

The world’s tallest Douglas fir is damaged but alive after burning for nearly a week in Oregon. On August 21, arborists climbed the famous 327-foot-tall tree known as the Doerner Fir and used a hose ...