Studies were conducted to assess influencing the effectiveness of sheep for grazing control of false brome (Brachypodium sylvaticum) an invasive grass species. Orphan lambs were exposed to false brome via grass extract in their milk and naturally reared lambs were exposed by grazing dense stands of false brome with their...
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CONTROL OF AN INVASIVE BUNCHGRASS
BY:
RYAN SCHOLZ
A THESIS
submitted to
Oregon State
The Chloroflexi CL500-11 clade contributes a large proportion of the bacterial biomass in the oxygenated hypolimnia of deep lakes worldwide, including the world's largest freshwater system, the Laurentian Great Lakes. Traits that allow CL500-11 to thrive and its biogeochemical role in these environments are currently unknown. Here, we found that...
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Nitrogen-Rich Dissolved
Organic Matter Metabolism and C1 Compound Oxidation
Vincent J. Denef,a Ryan S
Non-structural carbohydrates (NSC) in plant tissue are frequently quantified to make inferences about plant responses to environmental conditions. Laboratories publishing estimates of NSC of woody plants use many different methods to evaluate NSC. We asked whether NSC estimates in the recent literature could be quantitatively compared among studies. We also...
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., Pinkard, E. A., Ryan, M. G., Tissue, D. T., Baggett, L. S., Adams,
H. D., ... & Gibon, Y. (2015). Non
What is the nature of evolutionary divergence of the jaw skeleton within the genus Oncorhynchus? How can two associated bones evolve new shapes and still maintain functional integration? Here, we introduce and test a ‘concordance’ hypothesis, in which an extraordinary matching of the evolutionary shape changes of the dentary and...
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. Kimmel1*, Sawyer Watson1, Ryan B. Couture2, Natasha S. McKibben1, James T.
Nichols1, Shannon E
Vibrio cholerae, an etiological agent of cholera, circulates between aquatic reservoirs and the human gastrointestinal tract. The
type II secretion (T2S) system plays a pivotal role in both stages of the lifestyle by exporting multiple proteins, including cholera
toxin. Here, we studied the kinetics of expression of genes encoding the...
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Ryan S. Simmons,b Bo R. Park,a Mariko Nonogaki,a* Sarah Emerson,c Aleksandra E. Sikoraa,b
Department
The amino acid acridon-2-ylalanine (Acd) can be a valuable probe of protein conformational change because it is a
long lifetime, visible wavelength fluorophore that is small enough to be incorporated during ribosomal biosynthesis. Incorporation
of Acd into proteins expressed in E. coli requires efficient chemical synthesis to produce large quantities...
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F. Wissner,†
Taylor S. Willi,‡ Bradley F. Woodman,‡ Ryan A. Mehl,*,‡ and E. James Petersson
Multibeam (1 m resolution) and side scan data collected from an autonomous underwater vehicle, and
lava samples, radiocarbon-dated sediment cores, and observations of flow contacts collected by remotely
operated vehicle were combined to reconstruct the geologic history and flow emplacement processes on
Axial Seamount’s summit and upper rift zones. The...
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, Oregon State University, Newport, Oregon, USA
David W. Caress and Ryan A. Portner
Monterey Bay Aquarium
We hypothesized that changes in southeastern Bering Sea foraging conditions for black-legged kittiwakes (Rissa tridactyla)
have caused shifts in habitat use with direct implications for population trends. To test this, we compared at-sea
distribution, breeding performance, and nutritional stress of kittiwakes in three years (2008–2010) at two sites in the...
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for several hours before
regurgitating it to the young). All analyses were limited to diet
samples
Forest carbon (C) density varies tremendously across space due to the inherent heterogeneity of forest ecosystems. Variation of forest C density is especially pronounced in mountainous terrain, where environmental gradients are compressed and vary at multiple spatial scales. Additionally, the influence of environmental gradients may vary with forest age and...
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factors influencing aboveground live carbon (ALC) density differed between young versus old
forests. We