Index Catalog // ScholarsArchive@OSU

Creator:: Shettles, Michael, Temesgen, H., Gray, Andrew N., and Hilker, Thomas
Abstract:: Uncertainty in above ground forest biomass (AGB) estimates at broad-scale depends primarily on three sources of error that interact and propagate: measurement error, model error, and sampling error. Using Monte Carlo simulations, we compare the total propagated error for two sets of regional-level component equations for lodgepole pine AGB, and...
Resource Type:: Article
Full Text:: Comparison of uncertainty in per unit area

Creator:: Jenkins, Stephanie R., Betts, Matthew G., Huso, Manuela M., and Hagar, Joan C.
Abstract:: Lower order, non-fish-bearing streams, often termed ‘‘headwater streams’’, have received minimal research effort and protection priority, especially in mesic forests where distinction between riparian and upland vegetation can be subtle. Though it is generally thought that breeding bird abundance is higher in riparian zones, little is known about species distributions...
Resource Type:: Article
Full Text:: 6.02 m2/ha (110–160 ft2/ac) in the northwest portion of the study area, adjacent to three of the six

Creator:: Whittier, Thomas R. and Gray, Andrew N.
Abstract:: Determining how the frequency, severity, and extent of forest fires are changing in response to changes in management and climate is a key concern in many regions where fire is an important natural disturbance. In the USA the only national-scale fire severity classification uses satellite image change-detection to produce maps...
Resource Type:: Article
Full Text:: for forest inventories: A Pacific Northwest national forests example Tree mortality based fire

Creator:: Cortini, F., Comeau, P. G., Wang, T., Hibbs, D. E., and Bluhm, A.
Abstract:: We investigated the effects of climate on the growth of red alder across a broad latitudinal gradient and over a wide range of growing conditions in the Pacific Northwest of North America (PNW). Data for this study came from a study established in 1988 that includes 31 research installations located...
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Full Text:: Pacific Northwest 1 Climate effects on red alder growth in the Pacific Northwest of North America

Creator:: Reilly, Matthew J. and Spies, Thomas A.
Abstract:: Tree mortality is an important demographic process and primary driver of forest dynamics, yet there are relatively few plot-based studies that explicitly quantify mortality and compare the relative contribution of endogenous and exogenous disturbances at regional scales. We used repeated observations on 289,390 trees in 3673 1 ha plots on...
Resource Type:: Article
Full Text:: for contemporary regional forest change in the Pacific Northwest Forest Ecology and Management 374

Creator:: Latta, Gregory, Temesgen, Hailemariam, Adams, Darius M., and Barrett, Tara
Abstract:: As global climate changes over the next century, forest productivity is expected to change as well. Using PRISM climate and productivity data measured on a grid of 3356 plots, we developed a simultaneous autoregressive (SAR) model to estimate the impacts of climate change on potential productivity of Pacific Northwest (PNW)...
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Full Text:: forests of the United States Pacific Northwest Forest Ecology and Management xxx (2009) xxx–xxx G Model

Creator:: Gray, Andrew N. and Whittier, Thomas R.
Abstract:: The National Forest System (NFS) of the United States plays an important role in the carbon cycle because these lands make up a large proportion of the forested land in the country and commonly store more wood per unit area than other forest ownerships. In addition to sustaining natural resources,...
Resource Type:: Article

Creator:: Campbell, John L. and Donato, Daniel C.
Abstract:: Both the structure and composition of naturally generated early-seral forests in the Pacific Northwest (PNW) can be profoundly different than that of more developed forest seres, especially in the period after a major disturbance but before conifers re-develop a closed canopy. While it is reasonable to suggest that the unique...
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Full Text:: (Specific Leaf Area) is a 624 measure of leaf area per unit leaf mass, which in the Pacific Northwest, is

Creator:: Krankina, Olga N., Harmon, Mark E., Schnekenburger, Frank, and Sierra, Carlos A.
Abstract:: The management of federal forest lands in the Pacific Northwest (PNW) region changed in early 1990s when the Northwest Forest Plan (NWFP) was adopted with the primary goal to protect old-growth forest and associated species. A major decline in timber harvest followed, extending an earlier downward trend. The historic and...
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Full Text:: WESTERN OREGON AND 2 WASHINGTON: 3 THE IMPACT OF THE NORTHWEST FOREST PLAN 4 5 Olga N. Krankina a

Creator:: Meigs, Garrett W., Kennedy, Robert E., Gray, Andrew N., and Gregory, Matthew J.
Abstract:: Across the western US, the two most prevalent native forest insect pests are mountain pine beetle (MPB; Dendroctonus ponderosae; a bark beetle) and western spruce budworm (WSB; Choristoneura freemani; a defoliator). MPB outbreaks have received more forest management attention than WSB outbreaks, but studies to date have not compared their...
Resource Type:: Article
Full Text:: mountain pine beetle and western spruce budworm outbreaks across the Pacific Northwest Region, USA

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