Dec 18, 2025 · The best lodgepole pine races are faster-growing than the local spruces and larch planted in the same area; but again, only time will tell if the advantage will remain with the pine. Why …

Jun 18, 2021 · The two-acre exotic tree plantation is part of a much-larger “boreal arboretum” on the UAF campus, which mostly consists of native spruce, birch, aspen, poplar and willow trees. Having …

Ben Gaglioti takes a core from a tree in the farthest-north grove of lodgepole pines in Alaska, near the town of Yakutat. Photo by Ned Rozell.

Dec 18, 2025 · I eventually found a tree with a spiral lightning mark and it followed the spiral grain exactly. One tree, of course, proves nothing. "But why should the tree spiral? More speculation here: …

Jun 12, 2024 · A new machine-learning system developed at the University of Alaska Fairbanks can automatically produce detailed maps from satellite data to show locations of likely beetle-killed …

Dec 18, 2025 · Witches' broom on spruce trees is caused by a rust disease (a kind of fungus disease). The rust lives on the spruce tree throughout the year. Each spring, small yellow pustules appear on …

Apr 1, 1993 · Back on the ground, I did a little research on why so few tree types grow naturally in the neighborhood. Winter's extreme cold easily eliminates some tree species hardy elsewhere. Oak, ash, …

Aug 26, 1998 · The warm-weather hardwoods disappeared, leaving behind hardy birch, alder and pine. By about three million years ago, the forests were composed of spruce, larch, birch, alder, willow and …

Oct 8, 2015 · After climbing a pine tree in the dark with a flashlight, he once found four kinglets huddled together on a branch beak-to-beak, looking like a ball of fluff. As much as I root for the Fairbanks …

Dec 18, 2025 · Photograph of a section cut from a tree with 5 burls that simultaneously grew at the same level on the tree. Annual growth rings can be followed around the tree trunk at center and into each …