Index Catalog // ScholarsArchive@OSU

Riparian litter inputs to streams in the central Oregon Coast Range

Creator:: Hart, Stephanie K., Hibbs, David E., and Perakis, Steven S.
Abstract:: Riparian-zone vegetation can influence terrestrial and aquatic food webs through variation in the amount, timing, and nutritional content of leaf and other litter inputs. We investigated how riparianforest community composition, understory density, and lateral slope shaped vertical and lateral litter inputs to 16 streams in the Oregon Coast Range. Riparian...
Resource Type:: Article
Full Text:: University, Corvallis, Oregon 97331 USA Steven S. Perakis3 US Geological Survey, Forest and Rangeland

Avian Species Richness in Relation to Intensive Forest Management Practices in Early Seral Tree Plantations

Creator:: Jones, Jay E., Kroll, Andrew J., Giovanini, Jack, Duke, Steven D., Ellis, Tana M., and Betts, Matthew G.
Abstract:: •Background: Managers of landscapes dedicated to forest commodity production require information about how practices influence biological diversity. Individual species and communities may be threatened if management practices truncate or simplify forest age classes that are essential for reproduction and survival. For instance, the degradation and loss of complex diverse forest...
Resource Type:: Article
Full Text:: Giovanini1, Steven D. Duke1, Tana M. Ellis3, Matthew G. Betts3 1 Statistics, Mathematics, and Operations

Tyloses and phenolic deposits in xylem vessels impede water transport in low-lignin transgenic poplars: a study by cryo-fluorescence microscopy

Creator:: Kitin, Peter, Voelker, Steven L., Meinzer, Frederick C., Beeckman, Hans, Strauss, Steven H., and Lachenbruch, Barbara
Abstract:: Of 14 transgenic poplar genotypes (Populus tremula × Populus alba) with antisense 4-coumarate:coenzyme A ligase that were grown in the field for 2 years, five that had substantial lignin reductions also had greatly reduced xylem-specific conductivity compared with that of control trees and those transgenic events with small reductions in...
Resource Type:: Article
Full Text:: ] Peter Kitin*, Steven L. Voelker, Frederick C. Meinzer, Hans Beeckman, Steven H. Strauss, and Barbara

Decomposition of heterogeneous organic matter and its long-term stabilization in soils

Creator:: Sierra, Carlos A., Harmon, Mark E., and Perakis, Steven S.
Abstract:: Soil organic matter is a complex mixture of material with heterogeneous biological, physical, and chemical properties. Decomposition models represent this heterogeneity either as a set of discrete pools with different residence times or as a continuum of qualities. It is unclear though, whether these two different approaches yield comparable predictions...
Resource Type:: Article
Full Text:: its long-term stabilization in soils CARLOS A. SIERRA,1,2,4 MARK E. HARMON,1 AND STEVEN S. PERAKIS3

Nitrogen limitation, ¹⁵N tracer retention, and growth response in intact and Bromus tectorum-invaded Artemisia tridentata ssp. wyomingensis communities

Creator:: Witwicki, Dana L., Doescher, Paul S., Pyke, David A., DeCrappeo, Nicole M., and Perakis, Steven S.
Abstract:: Annual grass invasion into shrub-dominated ecosystems is associated with changes in nutrient cycling that may alter nitrogen (N) limitation and retention. Carbon (C) applications that reduce plant-available N have been suggested to give native perennial vegetation a competitive advantage over exotic annual grasses, but plant community and N retention responses...
Resource Type:: Article
Full Text:: . DeCrappeo • Steven S. Perakis Received: 7 February 2012 / Accepted: 16 August 2012 / Published online: 22

Hydraulic architecture of two species differing in wood density: opposing strategies in co-occurring tropical pioneer treespce_2421 116..

Creator:: McCulloh, Katherine A., Johnson, Daniel M., Meinzer, Frederick C., Voelker, Steven L., Lachenbruch, Barbara, and Domec, Jean-Christophe
Abstract:: Co-occurring species often have different strategies for tolerating daily cycles of water stress. One underlying parameter that can link together the suite of traits that enables a given strategy is wood density. Here we compare hydraulic traits of two pioneer species from a tropical forest in Panama that differ in...
Resource Type:: Article
Full Text:: KATHERINE A. MCCULLOH1, DANIEL M. JOHNSON2, FREDERICK C. MEINZER3, STEVEN L. VOELKER4, BARBARA LACHENBRUCH1

Methylome reorganization during in vitro dedifferentiation and regeneration of Populus trichocarpa

Creator:: Vining, Kelly, Pomraning, Kyle R., Wilhelm, Larry J., Ma, Cathleen, Pellegrini, Matteo, Di, Yanming, Mockler, Todd C., Freitag, Michael, and Strauss, Steven H.
Abstract:: Background: Cytosine DNA methylation (5mC) is an epigenetic modification that is important to genome stability and regulation of gene expression. Perturbations of 5mC have been implicated as a cause of phenotypic variation among plants regenerated through in vitro culture systems. However, the pattern of change in 5mC and its functional...
Resource Type:: Article
Full Text:: , Cathleen Ma1, Matteo Pellegrini5, Yanming Di6, Todd C Mockler7, Michael Freitag2,3,8 and Steven H

Dynamic DNA cytosine methylation in the Populus trichocarpa genome: tissue-level variation and relationship to gene expression

Creator:: Vining, Kelly J., Pomraning, Kyle R., Wilhelm, Larry J., Priest, Henry D., Pellegrini, Matteo, Mockler, Todd C., Freitag, Michael, and Strauss, Steven H.
Abstract:: Background: DNA cytosine methylation is an epigenetic modification that has been implicated in many biological processes. However, large-scale epigenomic studies have been applied to very few plant species, and variability in methylation among specialized tissues and its relationship to gene expression is poorly understood. Results: We surveyed DNA methylation from...
Resource Type:: Article
Full Text:: Wilhelm4, Henry D Priest5,6, Matteo Pellegrini7, Todd C Mockler5,6,8, Michael Freitag3,6 and Steven H

Contrasting patterns of evolution following whole genome versus tandem duplication events in Populus

Creator:: Rodgers-Melnick, Eli, Mane, Shrinivasrao P., Dharmawardhana, Palitha, Slavov, Gancho T., Crasta, Oswald R., Strauss, Steven H., Brunner, Amy M., and DiFazio, Stephen P.
Abstract:: Comparative analysis of multiple angiosperm genomes has implicated gene duplication in the expansion and diversification of many gene families. However, empirical data and theory suggest that whole-genome and small-scale duplication events differ with respect to the types of genes preserved as duplicate pairs. We compared gene duplicates resulting from a...
Resource Type:: Article
Full Text:: . Mane,2,3 Palitha Dharmawardhana,4 Gancho T. Slavov,1,5 Oswald R. Crasta,2,6 Steven H. Strauss,4 Amy M

Causes and implications of the correlation between forest productivity and tree mortality rates

Creator:: Stephenson, Nathan L., van Mantgem, Phillip J., Bunn, Andrew G., Bruner, Howard, Harmon, Mark E., O'Connell, Kari B., Urban, Dean L., and Franklin, Jerry F.
Abstract:: At global and regional scales, tree mortality rates are positively correlated with forest net primary productivity (NPP). Yet causes of the correlation are unknown, in spite of potentially profound implications for our understanding of environmental controls of forest structure and dynamics and, more generally, our understanding of broad-scale environmental controls...
Resource Type:: Article
Full Text:: tree mortality rates NATHAN L. STEPHENSON,1,6 PHILLIP J. VAN MANTGEM,1,7 ANDREW G. BUNN,2,8 HOWARD

ScholarsArchive@OSU

Riparian litter inputs to streams in the central Oregon Coast Range

Avian Species Richness in Relation to Intensive Forest Management Practices in Early Seral Tree Plantations

Tyloses and phenolic deposits in xylem vessels impede water transport in low-lignin transgenic poplars: a study by cryo-fluorescence microscopy

Decomposition of heterogeneous organic matter and its long-term stabilization in soils

Nitrogen limitation, ¹⁵N tracer retention, and growth response in intact and Bromus tectorum-invaded Artemisia tridentata ssp. wyomingensis communities

Hydraulic architecture of two species differing in wood density: opposing strategies in co-occurring tropical pioneer treespce_2421 116..

Methylome reorganization during in vitro dedifferentiation and regeneration of Populus trichocarpa

Dynamic DNA cytosine methylation in the Populus trichocarpa genome: tissue-level variation and relationship to gene expression

Contrasting patterns of evolution following whole genome versus tandem duplication events in Populus

Causes and implications of the correlation between forest productivity and tree mortality rates

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