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
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
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
Surfaces with photo-catalytic characteristics clean the air off nitrogen oxides and other health-endangering substances. Using a new test procedure, Fraunhofer researchers can find out how the coatings behave during a long-term ...
Engineering
Dec 20, 2012
0
0
Deep in the Finnish woods, the moss and blueberry shrubs hide a deadly threat to the boreal forests that are as important to the planet as the Amazon rainforest.
Ecology
Dec 5, 2022
0
11
Stroking a tiny spruce sapling, Swiss forest ranger Francois Villard fears the tree will not withstand global warming and live to a ripe old age like its ancestors.
Ecology
Nov 30, 2022
0
5
These days, smoke-filled summer skies and dusky red sunsets are a common occurrence across Canada and the United States. Much of that smoke is coming from large northern wildfires.
Earth Sciences
Aug 30, 2019
0
16
When trees die during a period of drought, they die of thirst. Researchers from the University of Basel have demonstrated in a field study that a rapid collapse in the hydraulic system is responsible for tree death. And they ...
Plants & Animals
Apr 13, 2021
1
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