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  1. Within-stand spatial distribution of tree mortality caused by the Douglas-Fir beetle (Coleoptera: Scolytidae)

    The Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins, causes considerable mortality in Douglas-fir, Pseudotsuga menziesii (Mirb.) Franco, forests. Within-stand distribution of mortality was examined in affected stands using geostatistical techniques. A 10 x 10 m grid was established in two 4-ha study sites. Live and beetle-killed host basal area was measured at...

    https://www.fs.usda.gov/treesearch/search?keywords=%22estimation%22&%3Bamp%3Bf%5B0%5D=author_facet%3A%22Greenfield%2C%20Eric%22&%3Bf%5B0%5D=author_facet%3A%22Schlexer%2C%20Ric%22&f%5B0%5D=author_facet%3A%22Schweitzer%2C%20Callie%22&f%5B1%5D=author_facet%3A%22Grace%2C%20Johnny%22&f%5B2%5D=author_facet%3A%22Negron%2C%20Jose%22&f%5B3%5D=author_facet%3A%22Warren%2C%20Matthew%20W.%22&f%5B4%5D=author_facet%3A%22Davila%2C%20Antonio%22&f%5B5%5D=author_facet%3A%22Mell%2C%20William%22&f%5B6%5D=nrt_combined%3A%22Inventory%2C%20Monitoring%2C%20%26%20Analysis%20%21Techniques%22

    Author(s):
    Jose F. Negron; John A. Anhold; A. Steve Munson
    Year:
    2001
    Keywords:
    Douglas-fir beetle, Dendroctonus pseudotsugae, bark beetles, disturbance, risk classification model, hazard rating model
    Source:
    Environmental Entomology. 30(2): 215-224.
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