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Trait-based approaches to linking vegetation and food webs in early-seral forests of the Pacific Northwest

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...
Resource Type:: Article
Full Text:: and food 1 webs in early-seral forests of the Pacific Northwest 2 3 John L Campbell

Influence of Bravo fungicide applications on wood density and moisture content of Swiss needle cast affected Douglas-fir trees

Creator:: Johnson, G. R., Gartner, Barbara L., Maguire, Doug, and Kanaskied, Alan
Abstract:: Wood density, moisture content, tracheid width and cell wall size were examined in trees from plots that were sprayed for 5 years with chlorothalonil (Bravo®) fungicide to reduce the impact of Swiss needle cast (SNC) and from trees in adjacent unsprayed plots. The unsprayed (more heavily diseased) trees had significantly...
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Full Text:: ' , Barbara L. Gartner b, Doug Maguire c, Alan'~)Kanaskie d aUSDA Forest Service, 3200 SW Jefferson Way

Understory plant biomass dynamics of prescribed burned Pinus palustris stands

Creator:: Gonzalez-Benecke, C. A., Samuelson, L. J., Stokes, T. A., Cropper, W. P., Jr., Martin, T. A., and Johnsen, K. H.
Abstract:: Longleaf pine (Pinus palustris Mill.) forests are characterized by unusually high understory plant species diversity, but models describing understory ground cover biomass, and hence fuel load dynamics, are scarce for this fire-dependent ecosystem. Only coarse scale estimates, being restricted on accuracy and geographical extrapolation, are available. We analyzed the dynamics...
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Full Text:: stands Gonzalez-Benecke, C. A., Samuelson, L. J., Stokes, T. A., Cropper, W. P., Martin, T. A

Mapping change of older forest with nearest-neighbor imputation and Landsat time-series

Creator:: Ohmann, Janet L., Gregory, Matthew J., Roberts, Heather M., Cohen, Warren B., Kennedy, Robert E., and Yang, Zhiqiang
Abstract:: The Northwest Forest Plan (NWFP), which aims to conserve late-successional and old-growth forests (older forests) and associated species, established new policies on federal lands in the Pacific Northwest USA. As part of monitoring for the NWFP, we tested nearest-neighbor imputation for mapping change in older forest, defined by threshold values...
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Full Text:: and Landsat time-series Janet L. Ohmann a,⇑, Matthew J. Gregory b, Heather M. Roberts b, Warren B

Tamm Review: Management of mixed-severity fire regime forests in Oregon, Washington, and Northern California

Creator:: Hessburg, Paul F., Spies, Thomas A., Perry, David A., Skinner, Carl N., Taylor, Alan H., Brown, Peter M., Stephens, Scott L., Larson, Andrew J., Churchill, Derek J., Povak, Nicholas A., Singleton, Peter H., McComb, Brenda, Zielinski, William J., Collins, Brandon M., Salter, R. Brion, Keane, John J., Franklin, Jerry F., and Riegel, Greg
Abstract:: Increasingly, objectives for forests with moderate- or mixed-severity fire regimes are to restore successionally diverse landscapes that are resistant and resilient to current and future stressors. Maintaining native species and characteristic processes requires this successional diversity, but methods to achieve it are poorly explained in the literature. In the Inland...
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Full Text:: . Taylor e, Peter M. Brown f, Scott L. Stephens g, Andrew J. Larson h, Derek J. Churchill i, Nicholas A

Thinning of young Douglas-fir forests decreases density of northern flying squirrels in the Oregon Cascades

Creator:: Manning, Tom, Hagar, Joan C., and McComb, Brenda C.
Abstract:: Large-scale commercial thinning of young forests in the Pacific Northwest is currently promoted on public lands to accelerate the development of late-seral forest structure for the benefit of wildlife species such as northern spotted owls (Strix occidentalis caurina) and their prey, including the northern flying squirrel (Glaucomys sabrinus). Attempts to...
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Full Text:: rodent’s importance as prey for owls and 49 other predators (Reynolds and Meslow, 1984; Wilson and Carey

Canopy gaps affect the shape of Douglas-fir crowns in the western Cascades, Oregon

Creator:: Seidel, Dominik, Ruzicka, Kenneth J., and Puettmann, Klaus
Abstract:: Silvicultural regimes that aim at an increased stand structural diversity typically promote small-scale heterogeneity in horizontal and vertical structures, e.g. through the creation of gaps. We used terrestrial laser scanning (TLS) to investigate impacts of altered growing conditions on trees adjacent to artificial gaps as compared to responses of trees...
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Full Text:: , Cascades RA, 1717 Fabry Road SE, Salem, OR, USA a r t i c l e i n f o a b s t r a c t Article history

Bayesian models describing microhabitat associations of infrequently captured small mammals sampled under a complex hierarchical design

Creator:: Lam, Tzeng Yih and Maguire, Douglas A.
Abstract:: Knowledge about the relationship between habitat structure and abundance of a target species facilitates biodiversity conservation in managed forests. However, modeling the relationship for infrequent small mammal species in silvicultural experiments introduces the challenge of excessive zero counts and complex hierarchical sampling. A common solution has been to ignore infrequent...
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Full Text:: ). 218 For the three GLMMs, let 1 2 7ij ij ij ijb b b ′ =  B L , [ ]1 2 7µ µ µ ′=U L ,219 [ ]1 2

Resilience in Quaking Aspen: Recent advances and future needs

Creator:: Rogers, Paul C., Eisenberg, Cristina, and St. Clair, Samuel B.
Abstract:: Quaking aspen (Populus tremuloides) sustainability is a topic of intense interest in forest ecology. Reports range from declines to persisting or increasing coverage in some areas. Moreover, there is little agreement on ultimate factors driving changes. Low aspen recruitment has been attributed to climate patterns, past management, herbivore increases, competitive...
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Full Text:: (Kochy and Wilson 2001). In contrast, Worrall et al. (this 237 volume) take a North American range

Carbon concentration of standing and downed woody detritus: Effects of tree taxa, decay class, position, and tissue type

Creator:: Harmon, Mark E., Fasth, Becky, Woodall, Christopher W., and Sexton, Jay
Abstract:: The degree to which carbon concentration (CC) of woody detritus varies by tree taxa, stage of decay, tissue type (i.e., bark versus wood), and vertical orientation was examined in samples of 60 tree species from the Northern Hemisphere. The mean CC of 257 study samples was 49.3% with a range...
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Full Text:: Station, 1992 Folwell Ave., St. Paul, MN 55108, USA a r t i c l e i n f o a b s t r a c t Article history

ScholarsArchive@OSU

Trait-based approaches to linking vegetation and food webs in early-seral forests of the Pacific Northwest

Influence of Bravo fungicide applications on wood density and moisture content of Swiss needle cast affected Douglas-fir trees

Understory plant biomass dynamics of prescribed burned Pinus palustris stands

Mapping change of older forest with nearest-neighbor imputation and Landsat time-series

Tamm Review: Management of mixed-severity fire regime forests in Oregon, Washington, and Northern California

Thinning of young Douglas-fir forests decreases density of northern flying squirrels in the Oregon Cascades

Canopy gaps affect the shape of Douglas-fir crowns in the western Cascades, Oregon

Bayesian models describing microhabitat associations of infrequently captured small mammals sampled under a complex hierarchical design

Resilience in Quaking Aspen: Recent advances and future needs

Carbon concentration of standing and downed woody detritus: Effects of tree taxa, decay class, position, and tissue type

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