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  • Field Studies
    Recent Field Studies
    Completed Field Studies
    Newlon, KR. and Saab, V. 2004. Influences of livestock grazing on populations and habitats of Lewis's woodpecker and other migratory landbirds breeding in aspen riparian woodlands. Rocky Mountain Research Station USFS. Bozeman, MT.

    Abstract:  This study assessed the effects of cattle and sheep grazing on Lewis's woodpecker nest survival, riparian breeding bird densities, and vegetation in aspen riparian woodlands. The objectives of the study were to 1) collect information on Lewis's woodpecker reproductive success and productivity; 2) estimate breeding bird densities in aspen riparian woodlands and compare bird species composition and densities in sheep- and cattle-grazed habitats; 3) determine which variables most directly influence Lewis's woodpecker nest survival; 4) determine habitat availability for breeding birds; and 5) determine aspen stand dynamics (i.e., regeneration and stand age).

    Field work was conducted during the summer seasons from 2002-2004. Transects were located within the Pioneer Mountain Foothills. Two new study sites on Upper Fish and Iron Mine Creeks will be added in 2003. 76 nests of Lewis's woodpeckers were found and monitored throughout the study. Point count surveys were conducted in each season. This work was conducted by researchers from the USFS and Montana State University. Funding was provided by Lava Lake, USFS, BLM, NPS, IDFG, MSU, Rocky Mountain Research Station, the North American Bluebird Society, and TNC.

    Completed Field Studies


    Lowe, B.S., D.J. Delehanty, and J. Connelly. 2006. Greater sage-grouse use of threetip sagebrush and a potential technique to improve population parameters. Idaho State University. Pocatello, ID.
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    Newlon, KR. and Saab, V. 2004. Influences of livestock grazing on populations and habitats of Lewis's woodpecker and other migratory landbirds breeding in aspen riparian woodlands. Rocky Mountain Research Station USFS. Bozeman, MT.
    Read abstract >

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    Newlon, K.R. 2004. Demography of Lewis's Woodpecker, breeding bird densities, and riparian aspen integrity in a grazed landscape. Master's Thesis. Montana State University. Bozeman, MT.
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    Paige, L.C. 2005. Bird Survey of Riparian and Wetland Areas. Ravenworks Ecology. Stevensville, MT.
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    Rich, T. 2005. Long term changes in breeding bird populations and habitat, Laidlaw Park, Craters of the Moon National Monument, ID. U.S. Fish and Wildlife Service. Boise, ID.
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    Rust, S.K., J.J. Miller, C.L. Coulter, A.C. Hardman, and M.C. Russell. 2005. Inventory and Assessment of Upland Vegetation: Southern Pioneer Mountain. Idaho Conservation Data Center. Idaho Department of Fish and Game. Boise, ID.
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    P. O. Box 2249 • Hailey, Idaho 83333 • Phone 208.788.1378 • Fax 208.788.1264 • info@lavalakeinstitute.org
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