A new University of Colorado Boulder study indicates drought high in the northern Colorado mountains is the primary trigger of a massive spruce beetle outbreak that is tied to long-term changes in sea-surface temperatures ...
Ecology
Oct 10, 2013
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In 10% of forests in central Europe, trees lost some or all of their leaves too early in the dry summer of 2018. This is shown by calculations and satellite image analyzes of the Swiss Federal Institute for Forest, Snow and ...
Environment
Nov 2, 2020
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Many plants can easily be regenerated and multiplied using cuttings. Crucial is that the cutting can initiate the formation of roots, a process called adventitious rooting. Sanaria Abbas Jaafer Alallaq showed in her Ph.D. ...
Plants & Animals
Jun 1, 2021
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Contrary to expectations that spruce beetle infestations increase the severity of wildfires in southwestern Colorado, a new study led by University of Colorado Boulder researchers has found that this native insect may not ...
Ecology
Oct 29, 2015
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Norway spruce is a large coniferous tree native to Northern, Central, and Eastern Europe. Conifers make up a considerable portion of the terrestrial biomass and serve as a significant carbon sink, with the majority of the ...
Plants & Animals
Apr 11, 2023
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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 spruce trees in Alaska, even in forests of ...
Plants & Animals
Jun 13, 2024
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In Finland, the European spruce bark beetle prefers mature Norway spruce forests close to recent clear-cut sites, a new study from the University of Eastern Finland finds.
Ecology
May 16, 2024
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The European spruce bark beetle has killed several hundred million spruce trees in Sweden and Central Europe in the last five years. A warmer climate will ultimately result in more damage also in Norwegian spruce forests. ...
Ecology
Mar 19, 2024
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