Even though the walnut twig beetle (WTB) is likely native to Arizona, California, and New Mexico, it has become an invasive pest to economically and ecologically important walnut trees throughout much of the Western and into ...
Ecology
May 28, 2015
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(Santa Barbara, Calif.) –– If current climate projections hold true, the forests of the Southwestern United States face a bleak future, with more severe –– and more frequent –– forest fires, ...
Environment
Dec 13, 2010
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Synthesizing more than 10 years of cooperative research on the exotic invasive, quarantine sudden oak death pathogen, the USDA Forest Service's Pacific Southwest Research Station (PSW) recently published "Sudden Oak Death ...
Ecology
Dec 27, 2010
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National results indicate that tree cover in urban areas of the United States is declining at a rate of about 4 million trees per year, according to a U.S. Forest Service study published recently in Urban Forestry & Urban ...
Environment
Feb 23, 2012
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Along with energy conservation and storm-water reduction, scientists may soon be adding crime-fighting to the list of benefits that urban trees provide. Researchers with the U.S. Forest Service's Pacific Northwest (PNW) and ...
Environment
Nov 1, 2010
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Even after researchers studying White Nose Syndrome (WNS) established that a fungus called Geomyces destructans is at the heart of the devastating disease, detecting it depended largely on finding dead or dying bats.
Cell & Microbiology
Mar 13, 2013
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As California celebrates Arbor Day this week (March 7), let's pause to ask ourselves: What is the true value of a tree? It may be priceless in the beauty it brings to a street, city park or backyard, but can an actual dollar ...
Environment
Mar 9, 2011
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Longer, warmer growing seasons associated with a changing climate are altering growing conditions in temperate rain forests, but not all plant species will be negatively affected, according to research conducted by the U.S. ...
Environment
Jan 18, 2013
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Yellow-cedar, a culturally and economically valuable tree in southeastern Alaska and adjacent parts of British Columbia, has been dying off across large expanses of these areas for the past 100 years. But no one could say ...
Environment
Feb 1, 2012
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A study by scientists with the U.S. Forest Service, Harvard University and partners suggests that trees are responding to higher atmospheric carbon dioxide levels by becoming more efficient at using water.
Environment
Jul 10, 2013
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