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    Author(s): C. I. Millar; N. L. Stephenson
    Date: 2015
    Source: Science. 349(6250): 823-826
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Southwest Research Station
    PDF: Download Publication  (924.72 KB)

    Description

    Although disturbances such as fire and native insects can contribute to natural dynamics of forest health, exceptional droughts, directly and in combination with other disturbance factors, are pushing some temperate forests beyond thresholds of sustainability. Interactions from increasing temperatures, drought, native insects and pathogens, and uncharacteristically severe wildfire are resulting in forest mortality beyond the levels of 20th-century experience. Additional anthropogenic stressors, such as atmospheric pollution and invasive species, further weaken trees in some regions. Although continuing climate change will likely drive many areas of temperate forest toward large-scale transformations, management actions can help ease transitions and minimize losses of socially valued ecosystem services.

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Millar, C. I.; Stephenson, N. L. 2015. Temperate forest health in an era of emerging megadisturbance. Science. 349(6250): 823-826.

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    Keywords

    forest health, hot drought, wildfire, insects, pathogens, ecosystem services

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