Index Catalog // ScholarsArchive@OSU

New North American truffles (Tuber spp.) and their ectomycorrhizal associations

Creator:: Guevara, Gonzalo, Bonito, Gregory, Trappe, James M., Cazares, Efren, Williams, Gwendolyn, Healy, Rosanne A., Schadt, Christopher, and Vilgalys, Rytas
Abstract:: Recent surveys of belowground fungal biodiversity in Mexico and USA have revealed many undescribed truffle species, including many in the genus Tuber. Here we describe seven new species: Tuber beyerlei, T. castilloi, T. guevarai, T. lauryi, T. mexiusanum, T. miquihuanense and T. walkeri. Phylogenetic analyses place these species within the...
Resource Type:: Article
Full Text:: ., Cd. Victoria, Tamaulipas 87010, México Gregory Bonito1 Department of Biology, Duke University

Enhancing the T-shaped learning profile when teaching hydrology using data, modeling, and visualization activities

Creator:: Sanchez, Christopher A., Ruddell, Benjamin L., Ruddell, Benjamin L., and Merwade, Venkatesh
Abstract:: Previous research has suggested that the use of more authentic learning activities can produce more robust and durable knowledge gains. This is consistent with calls within civil engineering education, specifically hydrology, that suggest that curricula should more often include professional perspective and data analysis skills to better develop the "T-shaped"...
Resource Type:: Article
Full Text:: License. Enhancing the T-shaped learning profile when teaching hydrology using data, modeling, and

Anomalous Diffusion of Sand Tracer Particles Under Waves

Creator:: Wilson, Gregory W.
Abstract:: A model is presented for the horizontal and vertical diffusion of sand tracer particles by waves and is verified using a reanalysis of the experiments of Miller and Komar (1979, ). In the model, sand particles take random jumps at a rate associated with the wave period but also can...
Resource Type:: Article
Full Text:: Anomalous Diffusion of Sand Tracer Particles Under Waves1 Gregory W. Wilson2 1Oregon State University

Factors influencing paternity in multiply mated female red-sided garter snakes and the persistent use of sperm stored over winter

Creator:: Friesen, Christopher R., Kerns, Amelia R., and Mason, Robert T.
Abstract:: In some species, sperm is stored within the female reproductive tract for months to years, and yet remains viable to fertilize eggs and produce offspring. Female red-sided garter snakes store sperm for over seven months of winter dormancy. In previous work we demonstrated that these stored sperm account for an...
Resource Type:: Article
Full Text:: OVER WINTER Christopher R. Friesen1, 2*, Amelia R. Kerns2,3, and Robert T. Mason2 1School of

Intra‐populational variation of ejaculate traits and sperm depletion in red‐sided garter snakes

Creator:: Friesen, Christopher R., Squire, Mattie K., and Mason, Robert T.
Abstract:: Female sexual promiscuity is a prevalent element of mating systems. One consequence of female sexual promiscuity is that male‐male competition often continues post‐copulation within the female’s reproductive tract. According to theory, the number of sperm a male inseminates relative to his rivals strongly predicts his fertilization success. However, sperm quality...
Resource Type:: Article
Full Text:: depletion in red-sided garter snakes Friesen, Christopher R., Squire, M. K., & Mason, R. T. (2014

Females remate more frequently when mated with sperm-deficient males

Creator:: Friesen, Christopher R., Uhrig, Emily J., and Mason, Robert T.
Abstract:: Polyandry is a source of sexual conflict and males often try to limit female promiscuity. Consequently, male manipulation of receptivity via antiaphrodisiacs and copulatory plugs that prevent female remating can be a source of sexual conflict. This sexual conflict may be intensified when females must remate for fertility insurance. Male...
Resource Type:: Article
Full Text:: Christopher R. Friesen1, 2*, Emily J. Uhrig1, Robert T. Mason1 4 1School of Biological Sciences, University

Surprises and Insights from Long-Term Aquatic Data Sets and Experiments

Creator:: Dodds, Walter K., Robinson, Christopher T., Gaiser, Evelyn E., Hansen, Gretchen J. A., Powell, Heather, Smith, Joseph M., Morse, Nathaniel B., Johnson, Sherri L., Gregory, Stanley V., Bell, Tisza, Kratz, Timothy K., and McDowell, William H.
Abstract:: Long-term research on freshwater ecosystems provides insights that can be difficult to obtain from other approaches. Widespread monitoring of ecologically relevant water-quality parameters spanning decades can facilitate important tests of ecological principles. Unique long-term data sets and analytical tools are increasingly available, allowing for powerful and synthetic analyses across sites....
Resource Type:: Article
Full Text:: Surprises and Insights from Long-Term Aquatic Data Sets and Experiments WALTER K. DODDS, CHRISTOPHER T

Feasibility of soil moisture monitoring with heated fiber optics

Creator:: Sayde, Chadi, Gregory, Christopher, Gil‐Rodriguez, Maria, Tufillaro, Nick, Tyler, Scott, van de Giesen, Nick, English, Marshal, Cuenca, Richard, and Selker, John S.
Abstract:: Accurate methods are needed to measure changing soil water content from meter to kilometer scales. Laboratory results demonstrate the feasibility of the heat pulse method implemented with fiber optic temperature sensing to obtain accurate distributed measurements of soil water content. A fiber optic cable with an electrically conductive armoring was...
Resource Type:: Article
Full Text:: optics Chadi Sayde,1 Christopher Gregory,1 Maria Gil‐Rodriguez,2 Nick Tufillaro,1 Scott Tyler,3 Nick

Skill progression demonstrated by users in the Scratch animation environment

Creator:: Scaffidi, Christopher and Chambers, Christopher
Abstract:: The Scratch environment exemplifies a tool+community approach to teaching elementary programming skills, as it includes a website where users can publish, discuss, and organize animations that are programs. To explore this environment’s effectiveness for helping people to develop programming skills, we performed a quantitative analysis of 250 randomly-selected users’ data,...
Resource Type:: Article
Full Text:: Scratch animation environment Christopher Scaffidi, Christopher Chambers { cscaffid , chambech

Potential effects of sea-level rise on plant productivity: species-specific responses in northeast Pacific tidal marshes

Creator:: Janousek, Christopher
Abstract:: Coastal wetland plants are adapted to varying degrees of inundation. However, functional relationships between inundation and productivity are poorly characterized for most species. Determining species-specific tolerances to inundation is necessary to evaluate sea-level rise (SLR) effects on future marsh plant community composition, quantify organic matter inputs to marsh accretion, and...
Resource Type:: Article
Full Text:: responses in northeast Pacific tidal marshes Christopher N. Janousek1,2,*, Kevin J. Buffington1,2, Karen

ScholarsArchive@OSU

New North American truffles (Tuber spp.) and their ectomycorrhizal associations

Enhancing the T-shaped learning profile when teaching hydrology using data, modeling, and visualization activities

Anomalous Diffusion of Sand Tracer Particles Under Waves

Factors influencing paternity in multiply mated female red-sided garter snakes and the persistent use of sperm stored over winter

Intra‐populational variation of ejaculate traits and sperm depletion in red‐sided garter snakes

Females remate more frequently when mated with sperm-deficient males

Surprises and Insights from Long-Term Aquatic Data Sets and Experiments

Feasibility of soil moisture monitoring with heated fiber optics

Skill progression demonstrated by users in the Scratch animation environment

Potential effects of sea-level rise on plant productivity: species-specific responses in northeast Pacific tidal marshes

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