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Woodpecker use and fall rates of snags created by killing ponderosa pine infected with dwarf mistletoe.Author(s): Catherine G. Parks; David A. Conklin; Larry Bednar; Helen Maffei
Source: Res. Pap. PNW-RP-515. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 11 p
Publication Series: Research Paper (RP)
Station: Pacific Northwest Research Station
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DescriptionPonderosa pine (Pinus ponderosa Dougl. ex Laws.) killed as part of a forest management project to reduce dwarf mistletoe (Arceuthobium sp.) in the Gila National Forest, New Mexico, were evaluated for wildlife value. One hundred and two dwarf mistletoe-infected trees were killed by basal burning, basal girdling, or by a combination of the two. Trees began to fall within 2 years. Most killed trees (96 percent) served as forage substrate for woodpeckers. Twenty percent of the trees contained woodpecker nest cavities and stood longer than small-diameter trees. The probability of cavity presence was best predicted by regression that included diameter and decay class. Standing life of the snag was not a significant predictor of cavity presence. The use of predictive models for analyzing the utility of snag-creation treatments is discussed.
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CitationParks, Catherine G.; Conklin, David A.; Bednar, Larry; Maffei, Helen. 1999. Woodpecker use and fall rates of snags created by killing ponderosa pine infected with dwarf mistletoe. Res. Pap. PNW-RP-515. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 11 p
KeywordsGirdling, fire-killed trees, wildlife trees, cavity nesters, Arceuthobium sp.
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