Nick Beckage, a graduate researcher, Davin Louangaphay, a research assistant, and Philippe Amstislavski, a professor of health sciences, stand among spruce trees on the University of Alaska Anchorage ...

ON THE KOBUK RIVER — It’s been a rainy fall. Again today the clouds are low, mist fills the air and raindrops pelt the windows. Water drips off tree branches. Down the hill through the wet grasses and ...

A new machine-learning system can automatically produce detailed maps from satellite data to show locations of likely beetle-killed spruce trees in Alaska, even in forests of low and moderate ...

White spruce trees dot the tundra in the Brooks Range. These trees are better able to survive harsh conditions due to heavy winter snowfall, a result of Arctic sea ice loss. (Photo courtesy Colin ...

Anywhere else in the world, more trees would be a blessing. But in the far north of Alaska, they’re a reckoning. As the Arctic warms up to four times as fast as the rest of the planet, white spruce ...

How trees fare under drought depends heavily on their past experiences. In some cases, adversity breeds resilience: Spruce trees that experience long-term droughts are more resistant to future ...