Index Catalog // ScholarsArchive@OSU

Forest-floor Disturbance Reduces Chipmunk (Tamias spp.) Abundance Two Years after Variable-retention Harvest of Pacific Northwestern Forests

Creator:: Wilk, Randall J., Harrington, Timothy B., Gitzen, Robert A., and Maguire, Chris C.
Abstract:: We evaluated the two-year effects of variable-retention harvest on chipmunk (Tamias spp.) abundance (Nˆ ) and habitat in mature coniferous forests in western Oregon and Washington because wildlife responses to density/pattern of retained trees remain largely unknown. In a randomized complete-block design, six treatments were applied to 13-ha units at...
Resource Type:: Article
Full Text:: Timothy B. Harrington, U.S.D.A. Forest Service, Pacific Northwest Research Station, Olympia Forestry

Biomass and fire dynamics in a temperate forest-grassland mosaic: Integrating multi-species herbivory, climate, and fire with the FireBGCv2/GrazeBGC system

Creator:: Riggs, Robert A., Keane, Robert E., Cimon, Norm, Cook, Rachel, Holsinger, Lisa, Cook, John, DelCurto, Timothy, Baggett, L. Scott, Justice, Donald, Powell, David, Vavra, Martin, and Naylor, Bridgett
Abstract:: Landscape fire succession models (LFSMs) predict spatially–explicit interactions between vegetation succession and disturbance, but these models have yet to fully integrate ungulate herbivory as a driver of their processes. We modified a complex LFSM, FireBGCv2, to include a multi-species herbivory module, GrazeBGC. The system is novel in that it explicitly...
Resource Type:: Article
Full Text:: . Keane b, Norm Cimon c, Rachel Cook d, Lisa Holsinger b, John Cook d, Timothy DelCurto e, L.Scott Baggett

Trends in Developed Land Cover Adjacent to Habitat for Threatened Salmon in Puget Sound, Washington, U.S.A.

Creator:: Bartz, Krista K., Ford, Michael J., Beechie, Timothy J., Fresh, Kurt L., Pess, George R., Kennedy, Robert E., Rowse, Melinda L., and Sheer, Mindi
Abstract:: For widely distributed species at risk, such as Pacific salmon (Oncorhynchus spp.), habitat monitoring is both essential and challenging. Only recently have widespread monitoring programs been implemented for salmon habitat in the Pacific Northwest. Remote sensing data, such as Landsat images, are therefore a useful way to evaluate trends prior...
Resource Type:: Article
Full Text:: Threatened Salmon in Puget Sound, Washington, U.S.A. Krista K. Bartz1¤, Michael J. Ford1*, Timothy J

Parent-Targeted Mobile Phone Intervention to Increase Physical Activity in Sedentary Children: Randomized Pilot Trial

Creator:: Newton, Robert L., Jr., Marker, Arwen M., Allen, H. Raymond, Machtmes, Ryan, Han, Hongmei, Johnson, William D., Schuna, John M. Jr., Broyles, Stephanie T., Tudor-Locke, Catrine, and Church, Timothy S.
Abstract:: BACKGROUND: Low levels of moderate-to-vigorous physical activity are associated with adverse health consequences. OBJECTIVE: The intent of the study was to determine the feasibility and efficacy of a 12-week physical activity promotion program targeting children, which was delivered to parents through mobile phones. METHODS: Potential participants were recruited through advertisements...
Resource Type:: Article
Full Text:: Broyles1, PhD; Catrine Tudor-Locke1, PhD; Timothy S Church1, MD, MPH, PhD 1Pennington Biomedical Research

Post-fire logging produces minimal persistent impacts on understory vegetation in northeastern Oregon, USA

Creator:: Peterson, David W. and Dodson, Erich Kyle
Abstract:: Post-fire forest management commonly requires accepting some negative ecological impacts from management activities in order to achieve management objectives. Managers need to know, however, whether ecological impacts from post-fire management activities are transient or cause long-term ecosystem degradation. We studied the long-term response of understory vegetation to two post-fire logging...
Resource Type:: Article
Full Text:: 25th Street, Ogden, UT 84401, USA. David W. Peterson a,⇑, Erich Kyle Dodson b,1 aUSDA Forest Service

A Landsat time series approach to characterize bark beetle and defoliator impacts on tree mortality and surface fuels in conifer forests

Creator:: Meigs, Garrett W., Kennedy, Robert E., and Cohen, Warren B.
Abstract:: Insects are important forest disturbance agents, and mapping their effects on tree mortality and surface fuels represents a critical research challenge. Although various remote sensing approaches have been developed to monitor insect impacts, most studies have focused on single insect agents or single locations and have not related observed changes...
Resource Type:: Article
Full Text:: line intercept transects (Brown, 1974; Brown et al., 1982; Harmon & Sexton, 1996) originat- ing at plot

Burning the legacy? Influence of wildfire reburn on dead wood dynamics in a temperate conifer forest

Creator:: Donato, Daniel C., Fontaine, Joseph B., and Campbell, John L.
Abstract:: Dynamics of dead wood, a key component of forest structure, are not well described for mixed-severity fire regimes with widely varying fire intervals. A prominent form of such variation is when two stand-replacing fires occur in rapid succession, commonly termed an early-seral “reburn.” These events are thought to strongly influence...
Resource Type:: Article
Full Text:: intercept transects (Harmon and Sexton 1996 ) radiating from plot center in subcardinal (NW, NE, SW, SE

Invasive bullfrog larvae lack developmental plasticity to changing hydroperiod

Creator:: Cook, Megan T., Heppell, Selina S., and Garcia, Tiffany S.
Abstract:: Determining the mechanisms responsible for the success of invasive species is critical for developing effective management strategies. Artificially draining managed wetlands to maintain natural ephemeral conditions is a common practice in the Pacific Northwest and is assumed to kill invasive American bullfrog (Lithobates catesbeianus) larvae, which typically overwinter in permanent...
Resource Type:: Article
Full Text:: gradient (Sexton et al. 2002). Adapted versus plastic trait response must be considered when developing

Forest Fire Impacts on Carbon Uptake, Storage, and Emission: The Role of Burn Severity in the Eastern Cascades, Oregon

Creator:: Meigs, Garrett W., Donato, Daniel C., Campbell, John L., Martin, Jonathan G., and Law, Beverly E.
Abstract:: This study quantifies the short-term effects of low-, moderate-, and high-severity fire on carbon pools and fluxes in the Eastern Cascades of Oregon. We surveyed 64 forest stands across four fires that burned 41,000 ha (35%) of the Metolius Watershed in 2002 and 2003, stratifying the landscape by burn severity...
Resource Type:: Article
Full Text:: Wagner 1968; Brown 1974; Har- mon and Sexton 1996; Law and others 2008), recording diameter, decay

Forestry publications October 2005 / Forest Research Laboratory

Creator:: Oregon State University. Forest Research Laboratory
Abstract:: For the most recent issue please visit http://wwwdata.forestry.oregonstate.edu/forestry/pubs/frl/byyear.asp
Resource Type:: Other

ScholarsArchive@OSU

Forest-floor Disturbance Reduces Chipmunk (Tamias spp.) Abundance Two Years after Variable-retention Harvest of Pacific Northwestern Forests

Biomass and fire dynamics in a temperate forest-grassland mosaic: Integrating multi-species herbivory, climate, and fire with the FireBGCv2/GrazeBGC system

Trends in Developed Land Cover Adjacent to Habitat for Threatened Salmon in Puget Sound, Washington, U.S.A.

Parent-Targeted Mobile Phone Intervention to Increase Physical Activity in Sedentary Children: Randomized Pilot Trial

Post-fire logging produces minimal persistent impacts on understory vegetation in northeastern Oregon, USA

A Landsat time series approach to characterize bark beetle and defoliator impacts on tree mortality and surface fuels in conifer forests

Burning the legacy? Influence of wildfire reburn on dead wood dynamics in a temperate conifer forest

Invasive bullfrog larvae lack developmental plasticity to changing hydroperiod

Forest Fire Impacts on Carbon Uptake, Storage, and Emission: The Role of Burn Severity in the Eastern Cascades, Oregon

Forestry publications October 2005 / Forest Research Laboratory

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