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Green Revolution Trees: Semidwarfism Transgenes Modify Gibberellins, Promote Root Growth, Enhance Morphological Diversity, and Reduce Competitiveness in Hybrid Poplar

Creator:: Elias, Ani A., Busov, Victor B., Kosola, Kevin R., Ma, Cathleen, Etherington, Elizabeth, Shevchenko, Olga, Gandhi, Harish, Pearce, David W., Rood, Stewart B., and Strauss, Steven H.
Abstract:: Semidwarfism has been used extensively in row crops and horticulture to promote yield, reduce lodging, and improve harvest index, and it might have similar benefits for trees for short-rotation forestry or energy plantations, reclamation, phytoremediation, or other applications. We studied the effects of the dominant semidwarfism transgenes GA Insensitive (GAI)...
Resource Type:: Article
Full Text:: –06ER64185 and DE–FG02– 05ER64113), the Consortium for Plant Biotechnology Research (grant no. GO12026–203A

Assessing the Carbon Consequences of Western Juniper (Juniperus occidentalis) Encroachment Across Oregon, USA

Creator:: Campbell, John L., Kennedy, Robert E., Cohen, Warren B., and Miller, Richard F.
Abstract:: Our ability to assess the continental impacts of woody encroachment remains compromised by the paucity of studies quantifying regional encroachment rates. This knowledge gap is especially apparent when it comes to quantifying the impact of woody encroachment on large-scale carbon dynamics. In this study, we use a combination of aerial...
Resource Type:: Article
Full Text:: throughout its range is believed to have increased by about 10 times (Miller and Rose 1999), with densities

The Impact of Buffer Zone Size and Management on Illegal Extraction, Park Protection, and Enforcement

Creator:: Robinson, Elizabeth J. Z., Albers, Heidi J., and Busby, Gwenlyn M.
Abstract:: Many protected areas or parks in developing countries have buffer zones at their boundaries to achieve the dual goals of protecting park resources and providing resource benefits to neighbouring people. Despite the prevalence of these zoning policies, few behavioural models of people’s buffer zone use inform the sizing and management...
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Full Text:: protected. We undertake sensitivity analysis for a wide range of enforcement budget levels and policy

Nutrient uptake in a stream affected by hydropower plants: comparison between stream channels and diversion canals

Creator:: Izagirre, Oihana, Argerich, Alba, Marti, Eugenia, and Elosegi, Arturo
Abstract:: Small hydropower plants divert part of the water from wide and physically complex stream channels with active hyporheic areas to narrow and hydraulically simple concrete canals, and thus, might affect nutrient dynamics. We compared nutrient uptake in diversion canals and in stream channels in the Leitzaran Stream (Basque Country, northern...
Resource Type:: Article
Full Text:: : hydropower plant, stream, nitrogen, phosphorus, uptake, hydromorphology, water 30 diversion 31 32 3

Ten-year growth and mortality in young Douglas-fir stands experiencing a range in Swiss needle cast severity

Creator:: Maguire, Douglas A., Mainwaring, Douglas B., and Kanaskie, Alan
Abstract:: Swiss needle cast, a foliar disease caused by the Ascomycete Phaeocryptopus gaeumannii (T. Rohde) Petr., continues to afflict Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) in north coastal Oregon. Permanent plots were installed in 1998 to assess growth impacts and monitor disease severity. Gross periodic annual increment was measured for three 2-year...
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Full Text:: mortality in young Douglas-fir stands experiencing a 3 range in Swiss needle cast severity 4 5 6

Twenty years of research on fungus-microbe-plant interactions on Lyman Glacier forefront – lessons learned and questions yet unanswered

Creator:: Jumpponen, Ari, Brown, Shawn P., Trappe, James M., Cazares, Efren, and Strommer, Rauni
Abstract:: Retreating glaciers and the periglacial areas they vacate for organismal colonization produce a harsh environment of extreme radiation, nutrient limitations, and temperature oscillations. They provide a model system for studying mechanisms that drive establishment and early assembly of communities. Here, we synthesize more than twenty years of research at the...
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Full Text:: 1 Twenty years of research on fungus-microbe-plant

Abundance of natural regeneration and growth comparisons with planted seedlings 10–13 years after commercial thinning in 50-year-old Douglas-fir, Douglas-fir/western hemlock, Oregon Coast Range

Creator:: Nabel, Mark R., Newton, Michael, and Cole, Elizabeth C.
Abstract:: Post-thinning natural regeneration in the Pacific Northwest of USA was evaluated 13 years after thinning 50-year-old Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco var. menziesii) stands on a drier, interior Coast Range site (McDonald) and 10 years after thinning 50- to 55-year-old Douglas-fir/western hemlock (Tsuga heterophylla [Raf.] Sarg.) stands on a moister,...
Resource Type:: Article
Full Text:: -fir/western hemlock, Oregon Coast Range Forest Ecology and Management 292 (2013) 96–110 Contents

A model-data comparison of gross primary productivity: Results from the North American Carbon Program site synthesis

Creator:: Schaefer, Kevin, Schwalm, Christopher R., Williams, Chris, Arain, M. Altaf, Barr, Alan, Chen, Jing M., Davis, Kenneth J., Dimitrov, Dimitre, Hilton, Timothy W., Hollinger, David Y., Humphreys, Elyn, Poulter, Benjamin, Raczka, Brett M., Richardson, Andrew D., Sahoo, Alok, Thornton, Peter, Vargas, Rodrigo, Verbeeck, Hans, Anderson, Ryan, Baker, Ian, Black, T. Andrew, Bolstad, Paul, Chen, Jiquan, Curtis, Peter S., Desai, Ankur R., Dietze, Michael, Dragoni, Danilo, Gough, Christopher, Grant, Robert F., Gu, Lianhong, Jain, Atul, Kucharik, Chris, Law, Beverly, Liu, Shuguang, Lokipitiya, Erandathie, Margolis, Hank A., Matamala, Roser, McCaughey, J. Harry, Monson, Russ, Munger, J. William, Oechel, Walter, Peng, Changhui, Price, David T., Ricciuto, Dan, Riley, William J., Roulet, Nigel, Tian, Hanqin, Tonitto, Christina, Torn, Margaret, Weng, Ensheng, and Zhou, Xiaolu
Abstract:: Accurately simulating gross primary productivity (GPP) in terrestrial ecosystem models is critical because errors in simulated GPP propagate through the model to introduce additional errors in simulated biomass and other fluxes. We evaluated simulated, daily average GPP from 26 models against estimated GPP at 39 eddy covariance flux tower sites...
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Full Text:: Gu,15 Atul Jain,29 Chris Kucharik,30 Beverly Law,31 Shuguang Liu,32 Erandathie Lokipitiya,20 Hank A

Effects of bison on willow and cottonwood in northern Yellowstone National Park

Creator:: Painter, Luke E. and Ripple, William J.
Abstract:: On the northern ungulate winter range of Yellowstone Park, willow (Salix spp.) and cottonwood (Populus angustifolia and P. balsamifera) have increased in height and cover in some places since the reintroduction of wolves (Canis lupus) and the subsequent changes in elk (Cervus elaphus) behavior and population densities. However, in the...
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Full Text:: winter range of Yellowstone Park, willow (Salix spp.) and 14 cottonwood (Populus angustifolia and P

Evaluating theories of drought-induced vegetation mortality using a multimodel– experiment framework

Creator:: McDowell, Nate G., Gehres, Nathan, Limousin, Jean Marc, Macalady, Alison, Martínez-Vilalta, Jordi, Mencuccini, Maurizio, Plaut, Jennifer A., Ogée, Jérôme, Robert E., Pangle, Rasse, Daniel P., Ryan, Michael G., Fisher, Rosie A., Sevanto, Sanna, Waring, Richard H., Williams, A. Park, Yepez, Enrico A., Pockman, William T., Xu, Chonggang, Domec, Jean-Christophe, Holtta, Teemu, Mackay, D. Scott, Sperry, John S., Boutz, Amanda, and Dickman, Lee
Abstract:: Model–data comparisons of plant physiological processes provide an understanding of mechanisms underlying vegetation responses to climate. We simulated the physiology of a pi~non pine–juniper woodland (Pinus edulis–Juniperus monosperma) that experienced mortality during a 5 yr precipitation-reduction experiment, allowing a framework with which to examine our knowledge of drought-induced tree mortality....
Resource Type:: Article
Full Text:: -based models. Summary Model–data comparisons of plant physiological processes provide an understanding

ScholarsArchive@OSU

Green Revolution Trees: Semidwarfism Transgenes Modify Gibberellins, Promote Root Growth, Enhance Morphological Diversity, and Reduce Competitiveness in Hybrid Poplar

Assessing the Carbon Consequences of Western Juniper (Juniperus occidentalis) Encroachment Across Oregon, USA

The Impact of Buffer Zone Size and Management on Illegal Extraction, Park Protection, and Enforcement

Nutrient uptake in a stream affected by hydropower plants: comparison between stream channels and diversion canals

Ten-year growth and mortality in young Douglas-fir stands experiencing a range in Swiss needle cast severity

Twenty years of research on fungus-microbe-plant interactions on Lyman Glacier forefront – lessons learned and questions yet unanswered

Abundance of natural regeneration and growth comparisons with planted seedlings 10–13 years after commercial thinning in 50-year-old Douglas-fir, Douglas-fir/western hemlock, Oregon Coast Range

A model-data comparison of gross primary productivity: Results from the North American Carbon Program site synthesis

Effects of bison on willow and cottonwood in northern Yellowstone National Park

Evaluating theories of drought-induced vegetation mortality using a multimodel– experiment framework

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