Index Catalog // ScholarsArchive@OSU

Forestry

Creator:: Avery, Bonnie E.
Abstract:: A broad definition of forestry would include the study of trees, forests, and the habitat they provide as well as their use by people. Modern “science-based” forestry began in the nineteenth century, when Europeans looked for specialists who could address questions on wood supply and extraction both at home and...
Resource Type:: Part of Book

Greater Sage-Grouse National Research Strategy

Creator:: Hanser, Steven E. and Manier, Daniel J.
Abstract:: The condition of the sagebrush ecosystem has been declining in the Western United States, and greater sage-grouse (Centrocercus urophasianus), a sagebrush-obligate species, has experienced concurrent decreases in distribution and population numbers. This has prompted substantial research and management over the past two decades to improve the understanding of sage-grouse and...
Resource Type:: Technical Report

Summary of Science, Activities, Programs, and Policies That Influence the Rangewide Conservation of Greater Sage-Grouse (Centrocercus urophasianus)

Creator:: Manier, D. J.
Abstract:: This report documents and summarizes several decades of work on sage-grouse populations, sagebrush as habitat, and sagebrush community and ecosystem functions based on the recent assessment and findings of the USFWS under consideration of the Endangered Species Act. As reflected here, some of these topics receive a greater depth of...
Resource Type:: Technical Report

Prey Patch Patterns Predict Habitat Use by Top Marine Predators with Diverse Foraging Strategies

Creator:: Benoit-Bird, Kelly J., Battaile, Brian C., Heppell, Scott A., Hoover, Brian, Irons, David, Jones, Nathan, Kuletz, Kathy J., Nordstrom, Chad A., Paredes, Rosana, Suryan, Robert M., Waluk, Chad M., and Trites, Andrew W.
Abstract:: Spatial coherence between predators and prey has rarely been observed in pelagic marine ecosystems. We used measures of the environment, prey abundance, prey quality, and prey distribution to explain the observed distributions of three co-occurring predator species breeding on islands in the southeastern Bering Sea: black-legged kittiwakes (Rissa tridactyla), thick-billed...
Resource Type:: Article

Multivariate Models of Adult Pacific Salmon Returns

Creator:: Burke, Brian J., Peterson, William T., Beckman, Brian R., Morgan, Cheryl, Daly, Elizabeth A., and Litz, Marisa
Abstract:: Most modeling and statistical approaches encourage simplicity, yet ecological processes are often complex, as they are influenced by numerous dynamic environmental and biological factors. Pacific salmon abundance has been highly variable over the last few decades and most forecasting models have proven inadequate, primarily because of a lack of understanding...
Resource Type:: Article

Host Identity Matters in the Amphibian-Batrachochytrium dendrobatidis System: Fine-Scale Patterns of Variation in Responses to a Multi-Host Pathogen

Creator:: Gervasi, Stephanie, Gondhalekar, Carmen, Olson, Deanna H., and Blaustein, Andrew R.
Abstract:: Species composition within ecological assemblages can drive disease dynamics including pathogen invasion, spread, and persistence. In multi-host pathogen systems, interspecific variation in responses to infection creates important context dependency when predicting the outcome of disease. Here, we examine the responses of three sympatric host species to a single fungal pathogen,...
Resource Type:: Article

Comparative Genome Structure, Secondary Metabolite, and Effector Coding Capacity across Cochliobolus Pathogens

Creator:: Condon, Bradford J., Leng, Yueqiang, Wu, Dongliang, Bushley, Kathryn E., Ohm, Robin A., Otillar, Robert, Martin, Joel, Schackwitz, Wendy, Grimwood, Jane, MohdZainudin, NurAinIzzati, Xue, Chunsheng, Wang, Rui, Manning, Viola A., Dhillon, Braham, Tu, Zheng Jin, Steffenson, Brian J., Salamov, Asaf, Sun, Hui, Lowry, Steve, LaButti, Kurt, Han, James, Copeland, Alex, Lindquist, Erika, Barry, Kerrie, Schmutz, Jeremy, Baker, Scott E., Ciuffetti, Lynda M., Grigoriev, Igor V., Zhong, Shaobin, and Turgeon, B. Gillian
Abstract:: The genomes of five Cochliobolus heterostrophus strains, two Cochliobolus sativus strains, three additional Cochliobolus species (Cochliobolus victoriae, Cochliobolus carbonum, Cochliobolus miyabeanus), and closely related Setosphaeria turcica were sequenced at the Joint Genome Institute (JGI). The datasets were used to identify SNPs between strains and species, unique genomic regions, core secondary...
Resource Type:: Article

Current and Future Land Use around a Nationwide Protected Area Network

Creator:: Hamilton, Christopher M., Martinuzzi, Sebastian, Plantinga, Andrew J., Radeloff, Volker C., Lewis, David J., Thogmartin, Wayne E., Heglund, Patricia J., and Pidgeon, Anna M.
Abstract:: Land-use change around protected areas can reduce their effective size and limit their ability to conserve biodiversity because land-use change alters ecological processes and the ability of organisms to move freely among protected areas. The goal of our analysis was to inform conservation planning efforts for a nationwide network of...
Resource Type:: Article

Regional Contingencies in the Relationship between Aboveground Biomass and Litter in the World’s Grasslands

Creator:: O’Halloran, Lydia R., Chu, Chengjin, Bakker, Jonathan D., Davies, Kendi F., Du, Guozhen, Firn, Jennifer, Hagenah, Nicole, Hofmockel, Kirsten S., Knops, Johannes M. H., Li, Wei, Melbourne, Brett A., Borer, Elizabeth T., Morgan, John W., Orrock, John L., Prober, Suzanne M., Stevens, Carly J., Seabloom, Eric W., MacDougall, Andrew S., Cleland, Elsa E., McCulley, Rebecca L., Hobbie, Sarah, Harpole, W. Stan, and DeCrappeo, Nicole M.
Abstract:: Based on regional-scale studies, aboveground production and litter decomposition are thought to positively covary, because they are driven by shared biotic and climatic factors. Until now we have been unable to test whether production and decomposition are generally coupled across climatically dissimilar regions, because we lacked replicated data collected within...
Resource Type:: Article

Post-Breeding Season Migrations of a Top Predator, the Harbor Seal (Phoca vitulina richardii), from a Marine Protected Area in Alaska

Creator:: Womble, Jamie N. and Gende, Scott M.
Abstract:: Marine protected areas (MPAs) are increasingly being used as a conservation tool for highly mobile marine vertebrates and the focus is typically on protecting breeding areas where individuals are aggregated seasonally. Yet movements during the non-breeding season can overlap with threats that may be equally as important to population dynamics....
Resource Type:: Article

Infection of Brachypodium distachyon by Formae Speciales of Puccinia graminis: Early Infection Events and Host-Pathogen Incompatibility

Creator:: Figueroa, Melania, Alderman, Stephen, Garvin, David F., and Pfender, William F.
Abstract:: Puccinia graminis causes stem rust, a serious disease of cereals and forage grasses. Important formae speciales of P. graminis and their typical hosts are P. graminis f. sp. tritici (Pg-tr) in wheat and barley, P. graminis f. sp. lolii (Pg-lo) in perennial ryegrass and tall fescue, and P. graminis f....
Resource Type:: Article

Selenium and Selenoprotein Deficiencies Induce Widespread Pyogranuloma Formation in Mice, while High Levels of Dietary Selenium Decrease Liver Tumor Size Driven by TGFα

Creator:: Moustafa, Mohamed E., Carlson, Bradley A., Anver, Miriam R., Bobe, Gerd, Zhong, Nianxin, Ward, Jerrold M., Perella, Christine M., Hoffmann, Victoria J., Rogers, Keith, Combs, Gerald F., Jr., Schweizer, Ulrich, Merlino, Glenn, Gladyshev, Vadim N., and Hatfield, Dolph L.
Abstract:: Changes in dietary selenium and selenoprotein status may influence both anti- and pro-cancer pathways, making the outcome of interventions different from one study to another. To characterize such outcomes in a defined setting, we undertook a controlled hepatocarcinogenesis study involving varying levels of dietary selenium and altered selenoprotein status using...
Resource Type:: Article

Mapping the Global Emergence of Batrachochytrium dendrobatidis, the Amphibian Chytrid Fungus

Creator:: Olson, Deanna H., Aanensen, David M., Ronnenberg, Kathryn L., Powell, Christopher I., Walker, Susan F., Bielby, Jon, Garner, Trenton W. J., Weaver, George, The Bd Mapping Group, and Fisher, Matthew C.
Abstract:: The rapid worldwide emergence of the amphibian pathogen Batrachochytrium dendrobatidis (Bd) is having a profound negative impact on biodiversity. However, global research efforts are fragmented and an overarching synthesis of global infection data is lacking. Here, we provide results from a community tool for the compilation of worldwide Bd presence...
Resource Type:: Article

Risk of Exposure to Eastern Equine Encephalomyelitis Virus Increases with the Density of Northern Cardinals

Creator:: Estep, Laura K., McClure, Christopher J. W., Vander Kelen, Patrick, Burkett-Cadena, Nathan D., Sickerman, Stephen, Hernandez, José, Jinright, Joseph, Hunt, Brenda, Lusk, John, Hoover, Victor, Armstrong, Keith, Stark, Lillian M., Hill, Geoffrey E., and Unnasch, Thomas R.
Abstract:: For a variety of infectious diseases, the richness of the community of potential host species has emerged as an important factor in pathogen transmission, whereby a higher richness of host species is associated with a lowered disease risk. The proposed mechanism driving this pattern is an increased likelihood in species-rich...
Resource Type:: Article

A Comparison of the Spatial Linear Model to Nearest Neighbor (k-NN) Methods for Forestry Applications

Creator:: Ver Hoef, Jay M. and Temesgen, Hailemariam
Abstract:: Forest surveys provide critical information for many diverse interests. Data are often collected from samples, and from these samples, maps of resources and estimates of aerial totals or averages are required. In this paper, two approaches for mapping and estimating totals; the spatial linear model (SLM) and k-NN (k-Nearest Neighbor)...
Resource Type:: Article

A new species of western Atlantic lizardfish (Teleostei: Synodontidae: Synodus) and resurrection of Synodus bondi Fowler, 1939, as a valid species from the Caribbean with redescriptions of S. bondi, S. foetens (Linnaeus, 1766), and S. intermedius (Agassiz, 1829)

Creator:: Frable, Benjamin W., Baldwin, Carole C., Luther, Brendan M., and Weigt, Lee A.
Abstract:: Western Atlantic synodontid species were studied as part of an ongoing effort to reanalyze Caribbean shorefish diversity. A neighbor-joining tree constructed from cytochrome c oxidase I (COI) data revealed 2 highly divergent genetic lineages within both Synodus intermedius (Agassiz, 1829) (Sand Diver) and S. foetens (Linnaeus, 1766) (Inshore Lizardfish). A...
Resource Type:: Article

Climate Change Winners: Receding Ice Fields Facilitate Colony Expansion and Altered Dynamics in an Adélie Penguin Metapopulation

Creator:: LaRue, Michelle A., Ainley, David G., Swanson, Matt, Dugger, Katie M., Lyver, Phil O'B., Barton, Kerry, and Ballard, Grant
Abstract:: There will be winners and losers as climate change alters the habitats of polar organisms. For an Adelie penguin (Pygoscelis adeliae) colony on Beaufort Island (Beaufort), part of a cluster of colonies in the southern Ross Sea, we report a recent population increase in response to increased nesting habitat as...
Resource Type:: Article

Umpqua Coho Salmon Genetic Pedigree

Creator:: Banks, Michael A., Blouin, Michael S., Moyer, Gregory R., Theriault, Veronique, Whitcomb, Amelia, Loomis, David, and Jackson, Laura S.
Abstract:: Data, pedigrees, reports and manuscripts herein are from an investigation conducted with coho salmon of the Umpqua River in southern Oregon from 2001-2009. They relate to a study investigating several areas of uncertainty about the use of salmon hatcheries to increase the abundance of wild populations. At that time, there...
Resource Type:: Dataset

Parasitic Worms: Their Role in Medicin[e] in Modern Europe

Creator:: Aronstein, Laurie E.
Abstract:: Little is known about the role that worms played in the lives of modern Europeans. This research strove to combine a multitude of primary sources to shape a cohesive depiction of the role of parasitic worms in modern Europe 1700-1800. The Scientific Revolution played a key role in changing the...
Resource Type:: Presentation

Is slaughter by captive bolt more humane than halal style slaughter?

Creator:: Benoit, Madeline M.
Abstract:: For ANS 420.
Resource Type:: Research Paper

OSU Counseling Academic Unit Dissertations : 1947-2013

Creator:: Dykeman, Cass
Abstract:: An index of doctoral dissertations completed within OSU’s Counseling Academic Unit and accepted by the Graduate School, Oregon State University.
Resource Type:: Other

Deciphering the Cryptic Genome: Genome-wide Analyses of the Rice Pathogen Fusarium fujikuroi Reveal Complex Regulation of Secondary Metabolism and Novel Metabolites

Creator:: Wiemann, Philipp, Sieber, Christian M. K., von Bargen, Katharina W., Studt, Lena, Niehaus, Eva- Maria, Espino, Jose J., Huß, Kathleen, Michielse, Caroline B., Albermann, Sabine, Wagner, Dominik, Bergner, Sonja V., Connolly, Lanelle R., Fischer, Andreas, Reuter, Gunter, Kleigrewe, Karin, Bald, Till, Wingfield, Brenda D., Ophir, Ron, Freeman, Stanley, Hippler, Michael, Smith, Kristina M., Brown, Daren W., Proctor, Robert H., Munsterkotter, Martin, Freitag, Michael, Humpf, Hans-Ulrich, Guldener, Ulrich, and Tudzynski, Bettina
Abstract:: The fungus Fusarium fujikuroi causes "bakanae" disease of rice due to its ability to produce gibberellins (GAs), but it is also known for producing harmful mycotoxins. However, the genetic capacity for the whole arsenal of natural compounds and their role in the fungus' interaction with rice remained unknown. Here, we...
Resource Type:: Article

OSU Counseling Academic Unit Master's Theses : 1929-1959

Creator:: Dykeman, Cass
Abstract:: This bibliographic database contains all master’s theses completed by students within OSU’s Counseling Academic Unit. This listing includes all theses for the MS, MA, and EdM degrees. The title for the major in counseling during the time period of this database was Education. Counseling students with this Education major also...
Resource Type:: Other

U. S. Fish and Wildlife Service Endangered Species Listing Frequently Asked Questions

Creator:: U. S. Fish and Wildlife Service
Resource Type:: Technical Report

Integrated Landscape Assessment Project final report

Creator:: Gaines, Lisa, Hemstrom, Miles, Kagan, Jimmy, and Salwasser, Janine
Abstract:: The Integrated Landscape Assessment Project (ILAP) was a multi-year effort to produce information, maps, and models to help land managers, policy-makers, and others conduct mid- to broad-scale (e.g., watersheds to states and larger areas) prioritization of land management actions, perform landscape assessments, and estimate cumulative effects of management actions for...
Resource Type:: Technical Report

Joint Modeling of Transitional Patterns of Alzheimer’s Disease

Creator:: Liu, Wei, Zhang, Bo, Zhang, Zhiwei, and Zhou, Xiao-Hua
Abstract:: While the experimental Alzheimer's drugs recently developed by pharmaceutical companies failed to stop the progression of Alzheimer's disease, clinicians strive to seek clues on how the patients would be when they visit back next year, based upon the patients' current clinical and neuropathologic diagnosis results. This is related to how...
Resource Type:: Article

Oak Creek Stream Chemistry, Spring, 2013

Creator:: Haggerty, Roy
Abstract:: We monitored a suite of stream chemistry parameters for April and May, 2013, at Oak Creek, Oregon, USA. The dataset can be downloaded at the following URL: http://dx.doi.org/10.7267/N9JW8BSJ, via the Dataset Query Tool. The dataset is hosted by The Oregon Hydrologic Information Server (OHIS), which is an on-line database repository...
Resource Type:: Dataset

Phytophthora Have Distinct Endogenous Small RNA Populations That Include Short Interfering and microRNAs

Creator:: Fahlgren, Noah, Bollmann, Stephanie R., Kasschau, Kristin D., Cuperus, Josh T., Press, Caroline M., Sullivan, Christopher M., Chapman, Elisabeth J., Hoyer, J. Steen, Gilbert, Kerrigan B., Grunwald, Niklaus J., and Carrington, James C.
Abstract:: In eukaryotes, RNA silencing pathways utilize 20-30-nucleotide small RNAs to regulate gene expression, specify and maintain chromatin structure, and repress viruses and mobile genetic elements. RNA silencing was likely present in the common ancestor of modern eukaryotes, but most research has focused on plant and animal RNA silencing systems. Phytophthora...
Resource Type:: Article

Molecular genetic characterization of Chinook salmon (Oncorhynchus tschawytscha) runs for California’s central valley

Creator:: Banks, Michael A.
Abstract:: The application of DNA based markers towards the task of discriminating among alternate salmon runs has evolved in accord with ongoing genomic developments and increasingly enabled resolution of which genetic markers associate with important life history differences. Accurate and efficient identification of the most likely origin for salmon encountered during...
Resource Type:: Dataset

Relationship Between Climatic Factors and Distribution of Pratylenchus spp. in the Dryland Wheat-Production Areas of Eastern Washington

Creator:: Kandel, Shyam L., Smiley, Richard W., Garland-Campbell, Kimberly, Elling, Axel A., Abatzoglou, John T., Huggins, David, Rupp, Richard, and Paulitz, Timothy C.
Abstract:: Field surveys were conducted by collecting soil samples to estimate nematode densities in soil from winter wheat, spring wheat, spring barley, and spring legumes (lentil, chickpea, and pea) fields during 2010 and 2011. Pratylenchus spp. were observed in 60% of sampled fields. However, nematodes were detected in nearly all of...
Resource Type:: Article

Effect of Climate on the Distribution of Fusarium spp. Causing Crown Rot of Wheat in the Pacific Northwest of the United States

Creator:: Poole, Grant J., Smiley, Richard W., Walker, Carl, Huggins, David, Rupp, Richard, Abatzoglou, John T., Garland-Campbell, Kimberly, and Paulitz, Timothy C.
Abstract:: Fusarium crown rot (FCR) is one of the most widespread root and crown diseases of wheat in the Pacific Northwest (PNW) of the United States. Our objectives were to characterize crown rot severity and distribution throughout the PNW by conducting a survey of 210 fields covering the diverse dryland wheat-producing...
Resource Type:: Article

Spatial Ecological Processes and Local Factors Predict the Distribution and Abundance of Spawning by Steelhead (Oncorhynchus mykiss) across a Complex Riverscape

Creator:: Falke, Jeffrey A., Dunham, Jason B., Jordan, Christopher E., McNyset, Kristina M., and Reeves, Gordon H.
Abstract:: Processes that influence habitat selection in landscapes involve the interaction of habitat composition and configuration and are particularly important for species with complex life cycles. We assessed the relative influence of landscape spatial processes and local habitat characteristics on patterns in the distribution and abundance of spawning steelhead (Oncorhynchus mykiss),...
Resource Type:: Article

A Meta-Analysis of Lesser Prairie-Chicken Nesting and Brood-Rearing Habitats: Implications for Habitat Management

Creator:: Hagen, Christian A., Grisham, Blacke A., Boal, Clint W., and Haukos, David A.
Abstract:: The distribution and range of lesser prairie-chicken (Tympanuchus pallidicinctus) has been reduced by >90% since European settlement of the Great Plains of North America. Currently, lesser prairie-chickens occupy 3 general vegetation communities: sand sagebrush (Artemisia filifolia), sand shinnery oak (Quercus havardii), and mixed-grass prairies juxtaposed with Conservation Reserve Program grasslands....
Resource Type:: Article

Greater Sage-grouse (Centrocercus urophasianus) Conservation Objectives: Final Report

Creator:: United States. Fish and Wildlife Service
Abstract:: This report delineates reasonable objectives, based upon the best scientific and commercial data available at the time of its release, for the conservation and survival of greater sage-grouse. Individual team members contributed by providing technical information and data, participating in critical discussions, providing critical reviews and edits, or authoring sections...
Resource Type:: Technical Report

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