A new study, published in the Proceedings of the National Academy of Sciences (PNAS), finds that black spruce trees—a key species on the boreal landscape for millennia—are losing their resilience and capacity to regenerate ...
Ecology
Oct 25, 2021
1
233
Two words, and a tiny little creature, strike fear in the hearts of many Colorado outdoor enthusiasts: bark beetle. But new research from University of Colorado Boulder reveals that even simultaneous bark beetle outbreaks ...
Ecology
Feb 14, 2020
0
5
When southern Rocky Mountain forests are viewed from a distance these days, it may not look like much is left. Large swaths of dead, standing Engelmann spruce trees tell the tale of a severe regional spruce beetle epidemic ...
Ecology
Oct 15, 2020
0
47
A new study from scientists at Uppsala University shows that it took more than 10 millennia from when the first spruces returned to Sweden after the glacial stage of the last Ice Age until the species became widespread. This ...
Ecology
Apr 11, 2022
0
708
Clearcutting and wildfires decimated the red spruce, once the dominant, high-elevation tree species in West Virginia, in the late 1800s and early 1900s. Nowadays, only 10% of the state's historic red spruce coverage remains ...
Plants & Animals
Aug 3, 2022
0
95
Eurasian spruce bark beetles (Ips typographus) burrow into the bark of Norway spruce (Picea abies) trees where they mate and lay their eggs. Major outbreaks in Europe have decimated millions of hectares of conifer forests. ...
Plants & Animals
Feb 21, 2023
0
121
Colorado's beetle-infested forests are peppered with an estimated 834 million standing dead trees that threaten to worsen wildfires and degrade vital water supplies that flow from mountains, officials said Wednesday.
Environment
Feb 15, 2017
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25
Genetic analysis at the state museum confirms what biologists squishing through Adirondack bogs already knew: New York's population of the spruce grouse, a chicken-like bird of the boreal forest, is nearing extinction.
Plants & Animals
Jul 4, 2011
0
0
Based on a new study, the carbon sequestration of suppressed spruces recovered during the following growth season after a selection harvesting. This is great news from the perspective of climate change. The prerequisites ...
Ecology
Mar 3, 2023
3
3
The analysis of carbon and oxygen isotopes embedded in tree rings may shed new light on past climate events in the Mackenzie Delta region of northern Canada.
Earth Sciences
Dec 3, 2009
1
0
