Index Catalog // ScholarsArchive@OSU

Pathogens and insects in a pristine forest ecosystem: the Sierra San Pedro Martir, Baja, Mexico

Creator:: Maloney, Patricia E. and Rizzo, David M.
Abstract:: We determined the incidence of pathogens and insects across mixed-conifer stands in the Sierra San Pedro Martir (SSPM) of northern Baja, Mexico, to assess the role of pests in a pristine forest ecosystem. We also determined the spatial distribution of the two most common pests, mistletoe, Phoradendron pauciflorum Torrey, and...
Resource Type:: Article
Full Text:: for Jeffrey pine (Pinus jeffreyiGrev. & Balf. in A. Murray), white fir, and sugar pine (Pinus

Short-term effects of fire and forest thinning on truffle abundance and consumption by Neotamias speciosus in the Sierra Nevada

Creator:: Meyer, Marc D., North, Malcolm P., and Kelt, Douglas A.
Abstract:: In many western North American forests, prescribed burning and mechanical thinning are widely used to reduce fuels and restore stand conditions after a century of fire suppression. Few studies have followed the relative impacts of these treatments on the production and consumption of truffles in forest ecosystems, particularly in the...
Resource Type:: Article
Full Text:: truffle abundance and consumption by Neotamias speciosus in the Sierra Nevada of California Marc D. Meyer

Short-term effects of fire and forest thinning on truffle abundance and consumption by Neotamias speciosus in the Sierra Nevada of California

Creator:: Meyer, Marc D., North, Malcolm P., and Kelt, Douglas A.
Abstract:: In many western North American forests, prescribed burning and mechanical thinning are widely used to reduce fuels and restore stand conditions after a century of fire suppression. Few studies have followed the relative impacts of these treatments on the production and consumption of truffles in forest ecosystems, particularly in the...
Resource Type:: Article
Full Text:: truffle abundance and consumption by Neotamias speciosus in the Sierra Nevada of California Marc D. Meyer

Interaction of vegetation control and fertilization on conifer species across the Pacific Northwest

Creator:: Rose, Robin and Ketchum, J. Scott
Abstract:: An experiment evaluating three levels of vegetation competition control (no control, 1.5 m2 of vegetation control, and 3.3 m2 of vegetation control), each with two fertilization treatments (fertilization at the time of planting with complete slow-release fertilizer (Woodace® IBDU), or no fertilization), was installed at five sites. Two of these...
Resource Type:: Article
Full Text:: hemlock zone in Oregon, and one with coastal redwood (Sequoia sempervirens(D. Don) Endl.) in northern

Intensifying a heuristic forest harvest scheduling search procedure with 2-opt decision choices

Creator:: Bettinger, Pete, 1962-, Boston, Kevin, and Sessions, John
Abstract:: Forest management problems with even-flow and adjacency considerations are difficult to solve optimally. A heuristic search intensification process, which uses two types of decision procedures, changes to single-decision choices (1-opt moves) and changes to two-decision choices simultaneously (2-opt moves), was used in an attempt to locate feasible and efficient solutions...
Resource Type:: Article
Full Text:: programming (e.g., Hof et al. 1994) to nontraditional heuristic programming techniques (e.g., Murray and

Developing a production possibility set of wildlife species persistence and timber harvest value

Creator:: Calkin, David E., Montgomery, Claire A., Schumaker, Nathan H., Polasky, Stephen, Arthur, Jeffrey L., and Nalle, Darek J.
Abstract:: An integrated model, combining spatial wildlife population and timber harvest and growth models, was developed to explore tradeoffs between the likelihood of persistence of a wildlife species, the northern flying squirrel (Glaucomys sabrinus), and timber production on a landscape on the west side of the Oregon Cascade Range. A simplified...
Resource Type:: Article
Full Text:: modeling is needed. Murray and Snyder (2000) stated in the introduction of a special issue of Forest

Respiration, nitrogen fixation, and mineralizable nitrogen spatial and temporal patterns within two Oregon Douglas-fir stands

Creator:: Hope, Sharon M. and Li, Ching-Yan
Abstract:: Substrate respiration, mineralizable nitrogen, and nitrogen fixation rates, substrate moisture content, and temperature were measured in trenched and undisturbed plots within two western Oregon Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stands. The stands represent two different environments and ages. Woods Creek, the site of the lower elevation mature 70-year-old stand, is...
Resource Type:: Article
Full Text:: predominantly of Douglas- fir with western hemlock and scattered western redcedar (Thuja plicata Donn ex D. Donn

Influence of species proportion and timing of establishment on stem quality in mixed red alder – Douglas-fir plantations

Creator:: Grotta, Amy T., Gartner, Barbara L., and Radosevich, Steven R.
Abstract:: The relationships among stand structure, Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) branch characteristics, and red alder (Alnus rubra (Bong.)) stem form attributes were explored for 10- to 15-year-old trees growing in mixed Douglas-fir – red alder plantations. Treatments included a range of species proportions, and red alder was either planted simultaneously...
Resource Type:: Article
Full Text:: ; Miller and Murray 1978; Binkley 1983). Despite these potential bene- fits, management of Douglas-fir

Regenerating white spruce, paper birch, and willow in south-central Alaska

Creator:: Cole, E. C., Newton, Michael, and Youngblood, A.
Abstract:: The current spruce bark beetle (Dendroctonus rufipennis Kirby) epidemic in interior Alaska is leaving large expanses of dead spruce with little spruce regeneration. Many of these areas are habitat for moose (Alces alces). To establish spruce regeneration and improve browse production for moose, paper birch (Betula papyrifera Marsh), willow (Salix...
Resource Type:: Article
Full Text:: a Hydro-ax™ feller–buncher; yarding and scarification were done by a D-7 tractor. During yarding, no

Predictive mapping of forest composition and structure with direct gradient analysis and nearest-neighbor imputation in coastal Oregon, U.S.A.

Creator:: Ohmann, Janet L. and Gregory, Matthew J.
Abstract:: Spatially explicit information on the species composition and structure of forest vegetation is needed at broad spatial scales for natural resource policy analysis and ecological research. We present a method for predictive vegetation mapping that applies direct gradient analysis and nearest-neighbor imputation to ascribe detailed ground attributes of vegetation to...
Resource Type:: Article
Full Text:: (Dougl.) DC. CHCH 75 Chamaecyparis lawsoniana A. Murray CHLA 53 Cornus nuttallii Aud. CONU 48 Fraxinus

ScholarsArchive@OSU

Pathogens and insects in a pristine forest ecosystem: the Sierra San Pedro Martir, Baja, Mexico

Short-term effects of fire and forest thinning on truffle abundance and consumption by Neotamias speciosus in the Sierra Nevada

Short-term effects of fire and forest thinning on truffle abundance and consumption by Neotamias speciosus in the Sierra Nevada of California

Interaction of vegetation control and fertilization on conifer species across the Pacific Northwest

Intensifying a heuristic forest harvest scheduling search procedure with 2-opt decision choices

Developing a production possibility set of wildlife species persistence and timber harvest value

Respiration, nitrogen fixation, and mineralizable nitrogen spatial and temporal patterns within two Oregon Douglas-fir stands

Influence of species proportion and timing of establishment on stem quality in mixed red alder – Douglas-fir plantations

Regenerating white spruce, paper birch, and willow in south-central Alaska

Predictive mapping of forest composition and structure with direct gradient analysis and nearest-neighbor imputation in coastal Oregon, U.S.A.

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