Index Catalog // ScholarsArchive@OSU

Simulating Wood Properties in the Context of a Growth and Yield Model for Planted Douglas-fir

Creator:: Osborne, Nathaniel L.
Abstract:: Forest growth and yield models are critical to supporting decision making in forestry, but often lack considerations for wood properties. The feasibility of simulating wood properties in the context of a Douglas-fir individual tree growth and yield model was evaluated. This assessment explored the effect of predicted sapwood width, stem...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Nathaniel L. Osborne for the degree of Doctor of Philosophy in

Fungal endophyte diversity in foliage of native and cultivated Rhododendron species determined by culturing, ITS sequencing, and pyrosequencing

Creator:: Raizen, Nathaniel L.
Abstract:: Western Oregon is home to native Rhododendron species and is the center for cultivated Rhododendron production in the United States. These Rhododendron spp. are known to be infected with fungal endophytes. However, the community structure of these endophytes in native and cultivated Rhododendron is poorly understood. Our study targeted the...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Nathaniel L. Raizen for the degree of Master of Science in Botany and Plant

Detection and Attribution of Observed Changes in Northern Hemisphere Spring Snow Cover

Creator:: Rupp, David E., Mote, Philip W., Bindoff, Nathaniel L., Stott, Peter A., and Robinson, David A.
Abstract:: Abstract: Significant declines in spring Northern Hemisphere (NH) snow cover extent (SCE) have been observed over the last five decades. As one step toward understanding the causes of this decline, an optimal fingerprinting technique is used to look for consistency in the temporal pattern of spring NH SCE between observations...
Resource Type:: Article
Full Text:: , Oregon NATHANIEL L. BINDOFF Institute of Marine and Antarctic Studies, and CSIRO Marine and Atmospheric

Regional and global forcing of glacier retreat during the last deglaciation

Creator:: Shakun, Jeremy D., Clark, Peter U., He, Feng, Lifton, Nathaniel A., Liu, Zhengyu, and Otto-Bliesner, Bette L.
Abstract:: The ongoing retreat of glaciers globally is one of the clearest manifestations of recent global warming associated with rising greenhouse gas concentrations. By comparison, the importance of greenhouse gases in driving glacier retreat during the most recent deglaciation, the last major interval of global warming, is unclear due to uncertainties...
Resource Type:: Article

Comparing Ecoregional Classifications for Natural Areas Management in the Klamath Region, USA

Creator:: Sarr, Daniel A., Duff, Andrew, Dinger, Eric C., Shafer, Sarah L., Wing, Michael, Seavy, Nathaniel E., and Alexander, John D.
Abstract:: We compared three existing ecoregional classification schemes (Bailey, Omernik, and World Wildlife Fund) with two derived schemes (Omernik Revised and Climate Zones) to explore their effectiveness in explaining species distributions and to better understand natural resource geography in the Klamath Region, USA. We analyzed presence/absence data derived from digital distribution...
Resource Type:: Article
Full Text:: Sarah L. Shafer3 Michael Wing4 Nathaniel E. Seavy5 John d. Alexander6 • • 2Wildlife Survey Data

Assessment of attachment behaviour to human caregivers in wolf pups (Canis lupus lupus)

Creator:: Hall, Nathaniel J., Lord, Kathryn, Arnold, Anne-Marie K., Wynne, Clive D. L., and Udell, Monique A. R.
Abstract:: Previous research suggested that 16-week old dog pups, but not wolf pups, show attachment behaviour to a human caregiver. Attachment to a caregiver in dog pups has been demonstrated by differential responding to a caregiver compared to a stranger in the Ainsworth Strange Situation Test. We show here that 3–7...
Resource Type:: Article
Full Text:: caregivers in wolf pups (Canis lupus lupus) Hall, N. J., Lord, K., Arnold, A. M. K., Wynne, C. D. L

In situ cosmogenic radiocarbon production and 2-D ice flow line modeling for an Antarctic blue ice area

Creator:: Buizert, Christo, Petrenko, Vasilii V., Kavanaugh, Jeffrey L., Cuffey, Kurt M., Lifton, Nathaniel A., Brook, Edward J., and Severinghaus, Jeffrey P.
Abstract:: Radiocarbon measurements at ice margin sites and blue ice areas can potentially be used for ice dating, ablation rate estimates and paleoclimatic reconstructions. Part of the measured signal comes from in situ cosmogenic ¹⁴C production in ice, and this component must be well understood before useful information can be extracted...
Resource Type:: Article
Full Text:: modeling for an Antarctic blue ice area Christo Buizert,1 Vasilii V. Petrenko,2,3 Jeffrey L. Kavanaugh,4

Warm spring reduced carbon cycle impact of the 2012 US summer drought

Creator:: Wolf, Sebastian, Keenan, Trevor F., Fisher, Joshua B., Baldocchi, Dennis D., Desai, Ankur R., Richardson, Andrew D., Scott, Russell L., Law, Beverly E., Litvak, Marcy E., Brunsell, Nathaniel A., Peters, Wouter, and van der Laan-Luijkx, Ingrid T.
Abstract:: The global terrestrial carbon sink offsets one-third of the world’s fossil fuel emissions, but the strength of this sink is highly sensitive to large-scale extreme events. In 2012, the contiguous United States experienced exceptionally warm temperatures and the most severe drought since the Dust Bowl era of the 1930s, resulting...
Resource Type:: Article

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:: . ROBINSON, EVELYN E. GAISER, GRETCHEN J. A. HANSEN, HEATHER POWELL, JOSEPH M. SMITH, NATHANIEL B. MORSE

ScholarsArchive@OSU

Simulating Wood Properties in the Context of a Growth and Yield Model for Planted Douglas-fir

Fungal endophyte diversity in foliage of native and cultivated Rhododendron species determined by culturing, ITS sequencing, and pyrosequencing

Detection and Attribution of Observed Changes in Northern Hemisphere Spring Snow Cover

Regional and global forcing of glacier retreat during the last deglaciation

Comparing Ecoregional Classifications for Natural Areas Management in the Klamath Region, USA

Assessment of attachment behaviour to human caregivers in wolf pups (Canis lupus lupus)

In situ cosmogenic radiocarbon production and 2-D ice flow line modeling for an Antarctic blue ice area

Warm spring reduced carbon cycle impact of the 2012 US summer drought

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

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