Index Catalog // ScholarsArchive@OSU

Phenotypic Plasticity of the Hydrasperman Seed Fern Tetrastichia bupatides Gordon (Lyginopteridaceae)

Creator:: Dunn, Michael T. and Rothwell, Gar W.
Abstract:: Fifty-nine stems of Tetrastichia bupatides, numerous frond segments, and roots from Oxroad Bay, Scotland, have recently been analyzed. They reveal that many characters originally used to describe this species exhibit a wider range of variation than previously suspected. These data suggest that ribs of the protostele are most commonly four...
Resource Type:: Article
Full Text:: sclerenchyma bands suggesting appendages. 715-25-G-1-17; scale bar ¼ 1 mm. L, Longitudinal section showing

Coupling snowpack and groundwater dynamics to interpret historical streamflow trends in the western United States

Creator:: Safeeq, Mohammad, Grant, Gordon E., Lewis, Sarah L., and Tague, Christina. L.
Abstract:: A key challenge for resource and land managers is predicting the consequences of climate warming on streamflow and water resources. During the last century in the western United States, significant reductions in snowpack and earlier snowmelt have led to an increase in the fraction of annual streamflow during winter and...
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Full Text:: the western United States Mohammad Safeeq,1 Gordon E. Grant,2* Sarah L. Lewis1 and Christina. L

Intraseasonal Sea Surface Temperature Variability across the Indonesian Seas

Creator:: Napitu, Asmi M., Gordon, Arnold L., and Pujiana, Kandaga
Abstract:: Sea surface temperature (SST) variability at intraseasonal time scales across the Indonesian Seas during January 1998–mid-2012 is examined. The intraseasonal variability is most energetic in the Banda and Timor Seas, with a standard deviation of 0.4°–0.5°C, representing 55%–60% of total nonseasonal SST variance. A slab ocean model demonstrates that intraseasonal...
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Full Text:: ., Gordon, A. L., & Pujiana, K. (2015). Intraseasonal Sea Surface Temperature Variability across the

Predicting landscape sensitivity to present and future floods in the Pacific Northwest, USA

Creator:: Safeeq, Mohammad, Grant, Gordon E., Lewis, Sarah L., and Staab, Brian
Abstract:: Floods are the most frequent natural disaster, causing more loss of life and property than any other in the USA. Floods also strongly influence the structure and function of watersheds, stream channels, and aquatic ecosystems. The Pacific Northwest is particularly vulnerable to climatically driven changes in flood frequency and magnitude,...
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Full Text:: ,1* Gordon E. Grant,1,2 Sarah L. Lewis1 and Brian Staab3 1College of Earth, Ocean, and Atmospheric

Do network relationships matter? Comparing network and instream habitat variables to explain densities of juvenile coho salmon (Oncorhynchus kisutch) in mid-coastal Oregon, USA

Creator:: Flitcroft, Rebecca L., Burnett, Kelly M., Reeves, Gordon H., and Ganio, Lisa M.
Abstract:: 1. Aquatic ecologists are working to develop theory and techniques for analysis of dynamic stream processes and communities of organisms. Such work is critical for the development of conservation plans that are relevant at the scale of entire ecosystems. The stream network is the foundation upon which stream systems are...
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Full Text:: juvenile coho salmon (Oncorhynchus kisutch) in mid-coastal Oregon, USA. REBECCA L. FLITCROFT", KELLY M

Acceptance, Acceptability, and Trust for Sagebrush Restoration Options in the Great Basin: A Longitudinal Perspective

Creator:: Gordon, Ryan, Brunson, Mark W., and Shindler, Bruce
Abstract:: In surveys of residents in three urban and three rural locations in the Great Basin we examined the social acceptability of six management practices showing promise for restoring sagebrush-dominated rangelands. Unlike most studies of range management perceptions that have relied on single measurements, we used longitudinal data from a questionnaire...
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Full Text:: Sagebrush Restoration Options in the Great Basin: A Longitudinal Perspective Gordon, R., Brunson, M. W

Demographic and phenotypic responses of juvenile steelhead trout to spatial predictability of food resources

Creator:: Sloat, Matthew R. and Reeves, Gordon H.
Abstract:: We manipulated food inputs among patches within experimental streams to determine how variation in foraging behavior influenced demographic and phenotypic responses of juvenile steelhead trout (Oncorhynchus mykiss) to the spatial predictability of food resources. Demographic responses included compensatory adjustments in fish abundance, mean fish size, and size inequality. These responses...
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Full Text:: steelhead trout to spatial predictability of food resources Sloat, M. R., & Reeves, G. H. (2014

Individual condition, standard metabolic rate, and rearing temperature influence steelhead and rainbow trout (Oncorhynchus mykiss) life histories

Creator:: Sloat, Matthew R. and Reeves, Gordon H.
Abstract:: We reared juvenile Oncorhychus mykiss with low and high standard metabolic rates (SMR) under alternative thermal regimes to determine how these proximate factors influence life histories in a partially migratory salmonid fish. High SMR significantly decreased rates of freshwater maturation and increased rates of smoltification in females, but not males,...
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Full Text:: (Oncorhynchus mykiss) life histories Sloat, M. R., & Reeves, G. H. (2014). Individual condition, standard

Effects of the Mycoparasite Sphaerellopsis filum on Overwintering Survival of Stem Rust in Perennial Ryegrass

Creator:: Gordon, T. C. and Pfender, W. F.
Abstract:: Sphaerellopsis filum is a mycoparasite of Puccinia graminis subsp. graminicola, a rust fungus that causes widespread crop damage on perennial ryegrass grown for seed. In observations taken over the winter months, S. filum was found naturally colonizing 2% of P. graminis subsp. graminicola uredinia on first-year plantings and 25% of...
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Full Text:: Mycoparasite Sphaerellopsis filum on Overwintering Survival of Stem Rust in Perennial Ryegrass T. C. Gordon

High frequency transformation of cottonwoods (genus Populus) by Agrobacterium rhizogene

Creator:: Han, Kyung-Hwan, Gordon, Milton P., and Strauss, Steven H.
Abstract:: Many species of Populus, particularly cottonwoods of sections Aigeiros and Tacamahaca, remain recalcitrant to genetic transformation. We demonstrate that transgenic trees can be readily produced in several poplar genotypes using wild-type Agrobacterium rhizogenes. Hairy roots were produced in a variety of clones that included Populus trichocarpa Torr. & A. Gray,...
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Full Text:: at 28°C on Luria–Bertani medium (LB; contains 10 g/L Bacto-trypton, 5 g/L Bacto-yeast extract, and 10

Separating the wheat from the chaff: mitigating the effects of noise in a plastome phylogenomic data set from Pinus L. (Pinaceae)

Creator:: Parks, Matthew, Cronn, Richard, and Liston, Aaron
Abstract:: Background: Through next-generation sequencing, the amount of sequence data potentially available for phylogenetic analyses has increased exponentially in recent years. Simultaneously, the risk of incorporating ‘noisy’ data with misleading phylogenetic signal has also increased, and may disproportionately influence the topology of weakly supported nodes and lineages featuring rapid radiations and/or...
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Full Text:: reactions were carried out in 40 μl volumes and contained 0.5 μg probe and 0.5–1 μg of ei- ther a single

Release and consumption of DMSP from Emiliania huxleyi during grazing by Oxyrrhis marina

Creator:: Wolfe, Gordon V., Sherr, Evelyn, and Sherr, Barry F.
Abstract:: Degradation and release to solution of intracellular dimethylsulfoniopropionate (DMSP) from Emiliania huxleyi 370 was observed during grazing by the heterotrophic dinoflagellate Oxyrrhis marina in 24 h bottle incubations. Between 30 and 70 % of the lost algal DMSP was metabolized by the grazers without production of dimethylsulfide (DMS) when grazer...
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Full Text:: b y Oxyrrhis marina Gordon V. Wolfe, Evelyn B. Sherr, Barry F. Sherr College of Oceanic and

Thinning and in-stream wood recruitment in riparian second growth forests in coastal Oregon and the use of buffers and tree tipping as mitigation

Creator:: Benda, Lee E., Litschert, S. E., Reeves, Gordon, and Pabst, Robert
Abstract:: Many aquatic habitats in coastal Oregon have been impacted by historic land use practices that led to losses of in-stream wood and associated degraded fish habitats. Many of these streams are now bordered by stands of dense second growth forests (30–80 years) that are incorporated into riparian buffer zones with...
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Full Text:: . Litschert2 • Gordon Reeves3 • Robert Pabst4 Received: 5 June 2015 / Accepted: 14 October 2015 / Published

Effects of wood on debris flow runout in small mountain watersheds

Creator:: Lancaster, Stephen T., Hayes, Shannon K., and Grant, Gordon E.
Abstract:: Debris flows have typically been viewed as two-phase mixtures of sediment and water, but in forested mountain landscapes, wood can represent a sizable fraction of total flow volume. The effects of this third phase on flow behavior are poorly understood. To evaluate whether wood can have a significant effect on...
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Full Text:: University, Corvallis, Oregon, USA Gordon E. Grant USDA Forest Service, Pacific Northwest Research Station

Young Adult Outcomes Associated with Teen Pregnancy Among High-Risk Girls in an RCT of Multidimensional Treatment Foster Care

Creator:: Leve, Leslie D., Kerr, David C. R., and Harold, Gordon T.
Abstract:: Teen pregnancy is associated with a host of deleterious outcomes for girls such as drug use and poor parenting. Thus, reducing teen pregnancy rates could improve long-term developmental outcomes for girls, improving adjustment during young adulthood. Based on the positive effects of Multidimensional Treatment Foster Care (MTFC) relative to group...
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Full Text:: childbearers. Journal of Family Psychology, 16, 38–49. Johnston, L. D., O’Malley, P. M., Bachman, J. G

Designing Media for Visually-Impaired Users of Refreshable Touch Displays: Possibilities and Pitfalls

Creator:: O'Modhrain, Sile, Giudice, Nicholas A., Gardner, John A., and Legge, Gordon E.
Abstract:: This paper discusses issues of importance to designers of media for visually impaired users. The paper considers the influence of human factors on effectiveness of presentation as well as the strengths and weaknesses of tactile, vibrotactile, static pins, haptic, force feedback, and multimodal methods of rendering maps, graphs and models....
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Full Text:: ] H. E. Whitson, D. Ansah, L. L. Sanders, D. Whitaker, G. G. Potter, S. W. Cousins, D. C. Steffens, L

Debris flow initiation in proglacial gullies on Mount Rainier, Washington

Creator:: Legg, Nicholas T., Meigs, Andrew J., Grant, Gordon E., and Kennard, Paul
Abstract:: Effects of climate change, retreating glaciers, and changing storm patterns on debris flow hazards concern managers in the Cascade Range (USA) and mountainous areas worldwide. During an intense rainstorm in November 2006, seven debris flows initiated from proglacial gullies of separate basins on the flanks of Mount Rainier. Gully heads...
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Full Text:: , Washington Legg, N. T., Meigs, A. J., Grant, G. E., & Kennard, P. (2014). Debris flow initiation in

An observationally based constraint on the water-vapor feedback

Creator:: Gordon, N. D., Jonko, A. K., Forster, P. M., and Shell, K. M.
Abstract:: The increase in atmospheric concentrations of water vapor with global warming is a large positive feedback in the climate system. Thus, even relatively small errors in its magnitude can lead to large uncertainties in predicting climate response to anthropogenic forcing. This study incorporates observed variability of water vapor over 2002–2009...
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Full Text:: . Soden, B. J., R. T. Wetherald, G. L. Stechikov, and A. Robock (2002), Global cooling after the eruption

Deployment and Evaluation of a System for Ground-Based Measurement of Cloud Liquid Water Turbulent Fluxes

Creator:: Kowalski, Andrew S., Anthoni, Peter M., Vong, Richard J., Delany, Anthony C., and Maclean, Gordon D.
Abstract:: Direct interception of windblown cloud water by forests has been dubbed “occult deposition” because it represents a hydrological input that is hidden from rain gauges. Eddy correlation studies of this phenomenon have estimated cloud water fluxes to vegetation yet have lacked estimates of error bounds. This paper presents an evaluation...
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Full Text:: T E C H N O L O G Y q 1997 American Meteorological Society Deployment and Evaluation of a System

Periglacial debris-flow initiation and susceptibility and glacier recession from imagery, airborne LiDAR, and ground-based mapping

Creator:: Lancaster, Stephen T., Nolin, Anne W., Copeland, Elizabeth A., and Grant, Gordon E.
Abstract:: Climate changes in the Pacific Northwest, USA, may cause both retreat of alpine glaciers and increases in the frequency and magnitude of storms delivering rainfall at high elevations absent significant snowpack, and both of these changes may affect the frequency and severity of destructive debris flows initiating on the region's...
Resource Type:: Article
Full Text:: . Lancaster1,*, Anne W. Nolin1, Elizabeth A. Copeland1, and Gordon E. Grant2 1College of Earth, Ocean, and

ScholarsArchive@OSU

Phenotypic Plasticity of the Hydrasperman Seed Fern Tetrastichia bupatides Gordon (Lyginopteridaceae)

Coupling snowpack and groundwater dynamics to interpret historical streamflow trends in the western United States

Intraseasonal Sea Surface Temperature Variability across the Indonesian Seas

Predicting landscape sensitivity to present and future floods in the Pacific Northwest, USA

Do network relationships matter? Comparing network and instream habitat variables to explain densities of juvenile coho salmon (Oncorhynchus kisutch) in mid-coastal Oregon, USA

Acceptance, Acceptability, and Trust for Sagebrush Restoration Options in the Great Basin: A Longitudinal Perspective

Demographic and phenotypic responses of juvenile steelhead trout to spatial predictability of food resources

Individual condition, standard metabolic rate, and rearing temperature influence steelhead and rainbow trout (Oncorhynchus mykiss) life histories

Effects of the Mycoparasite Sphaerellopsis filum on Overwintering Survival of Stem Rust in Perennial Ryegrass

High frequency transformation of cottonwoods (genus Populus) by Agrobacterium rhizogene

Separating the wheat from the chaff: mitigating the effects of noise in a plastome phylogenomic data set from Pinus L. (Pinaceae)

Release and consumption of DMSP from Emiliania huxleyi during grazing by Oxyrrhis marina

Thinning and in-stream wood recruitment in riparian second growth forests in coastal Oregon and the use of buffers and tree tipping as mitigation

Effects of wood on debris flow runout in small mountain watersheds

Young Adult Outcomes Associated with Teen Pregnancy Among High-Risk Girls in an RCT of Multidimensional Treatment Foster Care

Designing Media for Visually-Impaired Users of Refreshable Touch Displays: Possibilities and Pitfalls

Debris flow initiation in proglacial gullies on Mount Rainier, Washington

An observationally based constraint on the water-vapor feedback

Deployment and Evaluation of a System for Ground-Based Measurement of Cloud Liquid Water Turbulent Fluxes

Periglacial debris-flow initiation and susceptibility and glacier recession from imagery, airborne LiDAR, and ground-based mapping

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