Californians watched in dismay this month as the York fire seared through Mojave National Preserve, igniting a delicate desert landscape that may never fully recover.
Ecology
Aug 22, 2023
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1
The mountain pine beetle is one of the main causes of tree mortality in the pine forests of North America. For example, the insect has killed thousands of acres of pine forest in British Columbia and Alberta, and as a result, ...
Ecology
May 9, 2023
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35
Ponderosa pine forests in the Sierra Nevada that were wiped out by western pine beetles during the 2012-2015 megadrought won't recover to pre-drought densities, reducing an important storehouse for atmospheric carbon.
Plants & Animals
Apr 5, 2023
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141
Forest pathologist Martin MacKenzie strode forward on a narrow path through California's mythic bristlecone pine forest in the White Mountains near the Nevada border, methodically scanning gnarled limbs for the invaders that ...
Plants & Animals
Jun 29, 2022
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24
Invasive insects, fungi, or other pathogens can sweep through entire regions with deadly effect, devastating forests and causing ripple effects throughout the ecosystem. It happened here in Connecticut early in the 20th century, ...
Ecology
Dec 6, 2021
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5
It's no secret. Colorado's forests have had a tough time in recent years. While natural disturbances such as insect outbreaks and wildfires occurred historically and maintained forest health over time, multiple, simultaneous ...
Plants & Animals
Mar 18, 2021
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5
Whether they travel only a few metres or tens of kilometres to a new host tree, female pine beetles use different strategies to find success—with major negative consequences for pine trees, according to new research by ...
Ecology
Jul 17, 2020
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7
Not all pine trees are created equal when it comes to fending off their mortal enemy, the mountain pine beetle.
Plants & Animals
Dec 16, 2019
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6
The sugar pine, with its foot-long cones and feathery branches that stretch out high above the forest, used to be one of the most common trees standing guard over Lake Tahoe's clear waters. But drought, bark beetles and climate ...
Environment
Nov 26, 2019
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4
Lodgepole pines attacked by mountain pine beetles release volatile chemical compounds to warn related trees of the incoming threat, according to a new University of Alberta study.
Plants & Animals
Aug 8, 2019
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