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Quantitative-genetic variation in morphological and physiological traits within a quaking aspen (Populus tremuloides) population

Creator:: Kanaga, Megan K., Ryel, Ronald J., Mock, Karen E., and Pfrender, Michael E.
Abstract:: Genetic diversity within populations is an important component of adaptive evolution, and recent research has demonstrated that genetic variation within plant populations can have important ecological effects. In this study, we investigate quantitative-genetic variation in several traits within a quaking aspen (Populus tremuloides Michx.) population. A common garden experiment was...
Resource Type:: Article
Full Text:: related species, we compare our H2 and CVG values with other pub- lished studies that report quantitative

Cesium radioisotope content of wild edible fungi, mineral soil, and surface litter in western North America after the Fukushima nuclear accident

Creator:: Trappe, Matthew J., Minc, Leah D., Kittredge, Kimberly S., and Pink, Jeremias W.
Abstract:: We measured activity levels of cesium radioisotopes ¹³⁴Cs and ¹³⁷Cs in wild edible fungi, mineral soil, and surface litter of the west coast of North America from southern California to northern Vancouver Island after the Fukushima nuclear accident. All activity measurements were below governmental limits for human health. ¹³⁷Cs activity...
Resource Type:: Article
Full Text:: 38 The purpose of this study was to measure and report the levels of cesium radionuclides in wild

The CP4 transgene provides high levels of tolerance to Roundup® herbicide in field-grown hybrid poplars

Creator:: Meilan, R., Han, K.-H., Ma, C., DiFazio, Stephen P., Eaton, J. A., Hoien, E. A., Stanton, B. J., Crockett, R. P., Taylor, M. L., James, R. R., Skinner, J. S., Jouanin, L., Pilate, G., and Strauss, S. H.
Abstract:: We tested two genes together in hybrid poplars (genus Populus), CP4 and GOX, for imparting tolerance to glyphosate (the active ingredient in Roundup® herbicide). Using Agrobacterium-based transformation, 80 independent transgenic lines (i.e., products of asexual gene transfer) were produced in a variety of hybrid poplar clones (40 lines in Populus...
Resource Type:: Article
Full Text:: western Oregon. Ten percent of our transgenic lines showed no foliar damage or reduced growth after being

Potential financial returns from alternative silvicultural prescriptions in second-growth stands of coastal British Columbia

Creator:: Howard, Andrew F. and Temesgen, H.
Abstract:: This paper reports the findings from a study made of the potential financial returns from nine alternative silvicultural prescriptions applied to four case-study stands of second growth in coastal British Columbia. The objectives were to compare prescriptions based on partial cutting with conventional clear-cutting and to explore the effects of...
Resource Type:: Article
Full Text:: (stand I) the highest. There are no published findings on growth rates after partial cutting in similar

Effect of thinning and prescribed fire restoration treatments on woody debris and snag dynamics in a Sierran old-growth, mixed-conifer forest

Creator:: Innes, James C., North, Malcolm P., and Williamson, Nathan
Abstract:: Forest managers have little information of the effects of common restoration treatments, thinning and burning, on dead woody material (DWM) dynamics in fire-suppressed forests. Fine woody debris (FWD; 0.6–29.9 cm), coarse woody debris (CWD; ≥30.0 cm), and snags (≥5 cm) were inventoried and mapped in eighteen 4 ha plots before...
Resource Type:: Article
Full Text:: no thinning) and burning (burn and no burn) treatments. The combination of burning and thinning

Stem form and compression wood formation in young Pinus radiata trees

Creator:: Lachenbruch, Barbara, Droppelmann, Fernando, Balocchi, Claudio, Peredo, Miguel, and Perez, Erika
Abstract:: The crooked stems of some individuals of radiata pine (Pinus radiata D. Don) can hinder volume recovery and wood quality. To infer causes of crookedness and to learn how angle affects compression wood (CW) formation we studied 4+1-year old trees in southern Chile. Eight initially straight and 8 initially crooked...
Resource Type:: Article
Full Text:: untethered for 131 days (48 trees total). There were no significant differences between straight and crooked

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:: burning (no burn and burn), mechanical thinning (no thin, light thin, and heavy thin), and combinations of

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:: burning (no burn and burn), mechanical thinning (no thin, light thin, and heavy thin), and combinations of

Douglas-fir soil C and N properties a decade after termination of urea fertilization

Creator:: Homann, Peter S., Caldwell, Bruce A., Chappell, H. N., Sollins, Phillip, and Swanston, Chris W.
Abstract:: Chemical and microbial soil properties were assessed in paired unfertilized and urea fertilized (>89 g N·m–2) plots in 13 second-growth Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stands distributed throughout western Washington and Oregon. A decade following the termination of fertilization, fertilized plots averaged 28% higher total N in the O layer...
Resource Type:: Article
Full Text:: soil respira- tion but increased wood decomposition. There was no effect of fertilization on

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:: well represented with no one species being completely dominant. Percent cu- mulative mortality for the

ScholarsArchive@OSU

Quantitative-genetic variation in morphological and physiological traits within a quaking aspen (Populus tremuloides) population

Cesium radioisotope content of wild edible fungi, mineral soil, and surface litter in western North America after the Fukushima nuclear accident

The CP4 transgene provides high levels of tolerance to Roundup® herbicide in field-grown hybrid poplars

Potential financial returns from alternative silvicultural prescriptions in second-growth stands of coastal British Columbia

Effect of thinning and prescribed fire restoration treatments on woody debris and snag dynamics in a Sierran old-growth, mixed-conifer forest

Stem form and compression wood formation in young Pinus radiata trees

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

Douglas-fir soil C and N properties a decade after termination of urea fertilization

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

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