Index Catalog // ScholarsArchive@OSU

Uncertainty analysis: an evaluation metric for synthesis science

Creator:: Harmon, Mark E., Fasth, Becky, Halpern, Charles B., and Lutz, James A.
Abstract:: The methods for conducting reductionist ecological science are well known and widely used. In contrast, those used in the synthesis of ecological science (i.e., synthesis science) are still being developed, vary widely, and often lack the rigor of reductionist approaches. This is unfortunate because the synthesis of ecological parts into...
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Full Text:: science Uncertainty analysis: an evaluation metric for synthesis science Harmon, M. E., Fasth, B

Evolution of a Higher Intracellular Oxidizing Environment in Caenorhabditis elegans under Relaxed Selection

Creator:: Joyner-Matos, Joanna, Hicks, Kiley A., Cousins, Dustin, Keller, Michelle, Denver, Dee R., Baer, Charles F., and Estes, Suzanne
Abstract:: We explored the relationship between relaxed selection, oxidative stress, and spontaneous mutation in a set of mutation-accumulation (MA) lines of the nematode Caenorhabditis elegans and in their common ancestor. We measured steady-state levels of free radicals and oxidatively damaged guanosine nucleosides in the somatic tissues of five MA lines for...
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Full Text:: . Hicks2., Dustin Cousins1, Michelle Keller1, Dee R. Denver3, Charles F. Baer4, Suzanne Estes2

Effect of Feeding Selenium-Fertilized Alfalfa Hay on Performance of Weaned Beef Calves

Creator:: Hall, Jean A., Bobe, Gerd, Hunter, Janice K., Vorachek, William R., Stewart, Whitney C., Vanegas, Jorge A., Estill, Charles T., Mosher, Wayne D., and Pirelli, Gene J.
Abstract:: Selenium (Se) is an essential micronutrient in cattle, and Se-deficiency can affect morbidity and mortality. Calves may have greater Se requirements during periods of stress, such as during the transitional period between weaning and movement to a feedlot. Previously, we showed that feeding Se-fertilized forage increases whole-blood (WB) Se concentrations...
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Full Text:: , William R. Vorachek1, Whitney C. Stewart2¤b, Jorge A. Vanegas4, Charles T. Estill2,4, Wayne D. Mosher2

Multi-scale spatial controls of understory vegetation in Douglas-fir–western hemlock forests of western Oregon, USA

Creator:: Burton, Julia I., Ganio, Lisa M., and Puettmann, Klaus J.
Abstract:: Forest understory vegetation is influenced by broad-scale variation in climate, intermediate-scale variation in topography, disturbance and neighborhood interactions. However, little is known about how these multi-scale controls interact to influence observed spatial patterns. We examined relationships between the aggregated cover of understory plant species (%C[subscript U]) and multi-scale controls using...
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Full Text:: . M., & Puettmann, K. J. (2014). Multi-scale spatial controls of understory vegetation in Douglas-fir

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...
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Full Text:: Giovanini1, Steven D. Duke1, Tana M. Ellis3, Matthew G. Betts3 1 Statistics, Mathematics, and Operations

The stability and calibration of water vapor isotope ratio measurements during long-term deployments

Creator:: Bailey, A., Noone, D., Berkelhammer, M., Steen-Larsen, H. C., and Sato, P.
Abstract:: With the recent advent of commercial laser absorption spectrometers, field studies measuring stable isotope ratios of hydrogen and oxygen in water vapor have proliferated. These pioneering analyses have provided invaluable feedback about best strategies for optimizing instrumental accuracy, yet questions still remain about instrument performance and calibration approaches for multi-year...
Resource Type:: Article
Full Text:: ratio measurements during long-term deployments Bailey, A., Noone, D., Berkelhammer, M., Steen-Larsen

The stability and calibration of water vapor isotope ratio measurements during long-term deployments

Creator:: Bailey, A., Noone, D., Berkelhammer, M., Steen-Larsen, H. C., and Sato, P.
Abstract:: With the recent advent of commercial laser absorption spectrometers, field studies measuring stable isotope ratios of hydrogen and oxygen in water vapor have proliferated. These pioneering analyses have provided invaluable feedback about best strategies for optimizing instrumental accuracy, yet questions still remain about instrument performance and calibration approaches for multi-year...
Resource Type:: Article
Full Text:: ratio measurements during long-term deployments Bailey, A., Noone, D., Berkelhammer, M., Steen-Larsen

Palaeo-sea-level and palaeo-ice-sheet databases: problems, strategies, and perspectives

Creator:: Düsterhus, André, Rovere, Alessio, Carlson, Anders E., Horton, Benjamin P., Klemann, Volker, Tarasov, Lev, Barlow, Natasha L. M., Bradwell, Tom, Clark, Jorie, Dutton, Andrea, Gehrels, W. Roland, Hibbert, Fiona D., Hijma, Marc P., Khan, Nicole, Kopp, Robert E., Sivan, Dorit, and Törnqvist, Torbjörn E.
Abstract:: Sea-level and ice-sheet databases have driven numerous advances in understanding the Earth system. We describe the challenges and offer best strategies that can be adopted to build self-consistent and standardised databases of geological and geochemical information used to archive palaeo-sea-levels and palaeo-ice-sheets. There are three phases in the development of...
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Full Text:: Rovere3,4, Anders E. Carlson5, Benjamin P. Horton6,7, Volker Klemann8, Lev Tarasov9, Natasha L. M. Barlow10

Post-fire tree establishment and early cohort development in conifer forests of the western Cascades of Oregon, USA

Creator:: Tepley, Alan J., Swanson, Frederick J., and Spies, Thomas A.
Abstract:: Early‐seral ecosystems make important contributions to regional biodiversity by supporting high abundance and diversity of many plant and animal species that are otherwise rare or absent from closed‐canopy forests. Therefore, the period of post‐fire tree establishment is a key stage in forest stand and ecosystem development that can be viewed...
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Full Text:: Cascade Range. Elevation ranges from 316 to 1,753 m and most major ridges are higher than 1,200 m. The

Regional variation in stand structure and development in forests of Oregon, Washington, and inland Northern California

Creator:: Reilly, Matthew J. and Spies, Thomas A.
Abstract:: Despite its importance to biodiversity and ecosystem function, patterns and drivers of regional scale variation in forest structure and development are poorly understood. We characterize structural variation, create a hierarchical classification of forest structure, and develop an empirically based framework for conceptualizing structural development from 11,091 plots across 25 million...
Resource Type:: Article
Full Text:: development in forests of Oregon, Washington, and inland Northern California Reilly, M. J., & Spies, T. A

ScholarsArchive@OSU

Uncertainty analysis: an evaluation metric for synthesis science

Evolution of a Higher Intracellular Oxidizing Environment in Caenorhabditis elegans under Relaxed Selection

Effect of Feeding Selenium-Fertilized Alfalfa Hay on Performance of Weaned Beef Calves

Multi-scale spatial controls of understory vegetation in Douglas-fir–western hemlock forests of western Oregon, USA

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

The stability and calibration of water vapor isotope ratio measurements during long-term deployments

The stability and calibration of water vapor isotope ratio measurements during long-term deployments

Palaeo-sea-level and palaeo-ice-sheet databases: problems, strategies, and perspectives

Post-fire tree establishment and early cohort development in conifer forests of the western Cascades of Oregon, USA

Regional variation in stand structure and development in forests of Oregon, Washington, and inland Northern California

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