Index Catalog // ScholarsArchive@OSU

The Link between Cloud Forest Conservation and Community Benefit : The Roles of Resplendent Quetzal (Pharomachrus mocinno) and Aguacatillo (Persea caerulea)

Creator:: Sugaya, Satoko
Abstract:: I believe quetzal and aguacatillo are the key species in the cloud forests in Cerro de la Muerte because they are biologically and culturally valuable. This value contributes to ecotourism, which eventually becomes of economic benefit to local people. In this paper, I examine how the cloud forest conservation and...
Resource Type:: Research Paper

Rumen degradability and chemical composition of Mongolian highland’s pasture grass

Creator:: Damiran, Daalkhaijav and Namdag, Lkhagvajav
Abstract:: High mountains pasture had a marginally higher degradability compared to forest steppe and steppe in Mongolia. Based on results of analysis of pastures taken all-year-round, we subjectively group the time into 4 periods, i.e. before April, May-June, July-September, After September. The time periods also corresponds to vegetative stage of pasture...
Resource Type:: Research Paper

Chemical composition and digestibility of fringed sagebrush (Artemisia frigida Willd.)+forbs+needlegrass (Stipa Krylovii Roshev.) and forbs+grasses communities in the forest steppe rangelands

Creator:: Damiran, Daalkhaijav and Sainkhuu, Tserendash
Abstract:: Forage samples from fringed sagebrush+forbs+needlegrass (mountain steppe) and forbs+grasses (mountain meadow) communities in the forest steppe rangelands of Mongolia were collected in late February, April, May, June, July, August, September and October. Samples were analysed for chemical composition and digestibility. The study indicated that OM content of mountain steppe pasture...
Resource Type:: Research Paper

Chemical content and rumen degradability of desert steppe pasture of Mongolia

Creator:: Damiran, Daalkhaijav and Ts, Altanzul
Abstract:: Desert, desert-steppe (Gobi) zone is the largest province by area (165,000 square kilometres) of Mongolia. The Gobi contains some 560 plant species, in 80 different vegetation associations (Swift, 1991). There are number of results of nutritive value of desert-steppe’s pasture grass. Mongolia’s dry climate means that pasture grasses have less...
Resource Type:: Research Paper

Chemical composition and digestibility of Stipa caphillata-Cleistogenes squarrosa communities in the Eastern Mongolian rangelands

Creator:: Damiran, Daalkhaijav, M., Shagdarsuren, and Sainkhuu, Tserendash
Abstract:: Forage samples from Stipa caphillata-Cleistogenes squarrosa communities from the Eastern Mongolian rangelands were analysed for chemical composition and digestibility. Samples were collected at 10-days intervals from 30th June to 10th September. The study indicated that OM content of Stipa caphillata-Cleistogenes squarrosa communities ranged from 94.4 to 95.2%. The highest value...
Resource Type:: Research Paper

Effect of lactic acid bacterial ferment on silage consumption by dairy cows in forest steppe zone of Mongolia

Creator:: Darambazar, Enkhjargal and Damiran, Daalkhaijav
Abstract:: We studied the effect of a lactic acid bacterial additive on the quality of silage made of grass-legume mixtures in the forest steppe zone of Mongolia. The use of lactic acid bacterial ferment positively influenced the diet digestion and the cows silage consumption. The cows ate well the silage treated...
Resource Type:: Research Paper

Effect of lactic acid bacterial additive on silage quality

Creator:: Enkhjargal, Darambazar and Daalkhaijav, Damiran
Abstract:: We studied the effect of a lactic acid bacterial additive on the quality of silage made of grass-legume mixtures in the forest steppe zone of Mongolia. A high quality silage can be obtained applying a fermented liquid additive prepared on the basis of the pure cultures of lactic acid bacteria....
Resource Type:: Research Paper

Searching down the fisheries information web : an initial reflection

Creator:: Webster, Janet G., Merrikin, Patricia, and Collins, Jean
Abstract:: Paper presented at the 8th International Grey Literature Conference, December 4-5, 2006 New Orleans, USA.
Resource Type:: Research Paper

Understory production of transitional forested rangelands in the Blue Mountains of Eastern Oregon

Creator:: Darambazar, Enkhjargal, Damiran, Daalkhaijav, DelCurto, Timothy, Riggs, Robert, Vavra, Martin, and Cook, John
Abstract:: The objective of this study was to quantify understory vegetation response to overstory manipulation of Blue Mountain eco-region forest. Forty nine ecological land units, including differing successional stages (sapling, pole, small saw, and saw log) and canopy cover (light and medium) in dry Grand Fir (Abies grandis), wet Grand Fir,...
Resource Type:: Research Paper

Species diversity in understory vegetation of transitional forested rangelands in the Blue Mountains of Eastern Oregon

Creator:: Darambazar, Enkhjargal, Damiran, Daalkhaijav, DelCurto, Timothy, Riggs, Robert, Vavra, Martin, and Cook, John
Abstract:: The objective of this study was to quantify understory species diversity response to overstory manipulation of Blue Mountain eco-region forest. Forty nine ecological land units, including differing successional stages (sapling, pole, small saw, and saw log) and canopy cover (light and medium) in dry Grand Fir (Abies grandis), wet Grand...
Resource Type:: Research Paper

Botanical composition and diet quality of beef cattle grazing at three stocking rates following fuels reduction in mixed conifer forests

Creator:: Clark, Abe, DelCurto, Timothy, Vavra, Martin, Damiran, Daalkhaijav, and Darambazar, Enkhjargal
Abstract:: Due to the increasing cost and concern of catastrophic wildfires in the Western United States, there is an increasing interest in fuels reduction projects. Fuel reduction treatments utilize various methods of thinning and/or prescribed fire to obtain desirable forest stand conditions. However, the effects of fuels reduction on ecosystem function...
Resource Type:: Research Paper

The potential of dynamic segmentation for aquatic ecosystem management : Pacific lamprey decline in the native lands of the Confederated Tribes of Siletz Indians (Oregon, USA)

Creator:: Palacios, Kelly C.
Abstract:: A manuscript based on the original M.S. thesis
Resource Type:: Research Paper

Influence of previous cattle and elk grazing on the subsequent quality and quantity of diets for cattle, deer, and elk grazing late-summer mixed-conifer rangelands

Creator:: Damiran, Daalkhaijav, DelCurto, Timothy, Findholt, Scott, Pulsipher, Gary, and Johnson, Bruce
Abstract:: A study was conducted to determine foraging efficiency of cattle, mule deer, and elk in response to previous grazing by elk and cattle. Four enclosures, in previously logged mixed conifer (Abies grandis) rangelands were chosen, and within each enclosure, three 0.75 ha pastures were either: 1) ungrazed, 2) grazed by...
Resource Type:: Research Paper

The Influence of Cow Age on Botanical Composition of Diets in Mixed Conifer Mountain Riparian Areas and Adjacent Uplands

Creator:: Darambazar, Enkhjargal, DelCurto, Timothy, Ackerman, Callan, Damiran, Daalkhaijav, and Morrison, Julie
Abstract:: The objective of this study was to evaluate the effect of cow age on botanical composition of diets in mountain riparian areas. Treatments consisted of 30 first calf heifers, and 30 mature cows randomly assigned to four pastures (2 pastures/treatment, average 21.5 ha) in a two-year study with a cross...
Resource Type:: Research Paper

Changes in Forage Quantity and Quality with Continued Cattle Grazing in a Mountain Riparian Pasture

Creator:: Darambazar, Enkhjargal, DelCurto, Timothy, Ackerman, Callan, Pulsipher, Gary, and Damiran, Daalkhaijav
Abstract:: The objective of this study was to evaluate changes in the quantity, quality, and moisture of available forage in a riparian pasture, and shrub utilization by cattle during a 30-d late summer grazing period. A riparian pasture (44.7 ha) in northeast of Oregon was grazed with 30 yearlings (419 kg,...
Resource Type:: Research Paper

Diet composistion, dry matter intake, and diet overlap of mule deer, elk, and cattle

Creator:: Findholt, Scott, Johnson, Bruce, Damiran, Daalkhaijav, DelCurto, Timothy, and Kie, John
Abstract:: Mule deer (Odocoileus hemionus), elk (Cervus elaphus), and cattle share rangelands throughout much of interior western North America. Considerable debate exists about the degree to which facilitation or competition occurs for forage between these three species (Nelson 1982, Wisdom and Thomas 1996, Miller 2002). Prior cattle grazing can have beneficial...
Resource Type:: Research Paper

D.H. Lawrence & Ursula Brangwen v. Feminist Misreadings

Creator:: Halstead, Carmen
Abstract:: 2006 Winner of the Library Undergraduate Research Award : Upper Division
Resource Type:: Research Paper

Meat for Thought : Factory Farming at Its Worst

Creator:: Bradley, Matthew
Abstract:: 2006 Library Undergraduate Research Award winner : Lower division
Resource Type:: Research Paper

The Birth of German Art: Italia and Germania

Creator:: Peterson, Luke
Abstract:: 2006 Library Undergraduate Research awards : Upper Division winner
Resource Type:: Research Paper

Estimating Shrub Forage Yield and Utilization Using a Photographic Technique

Creator:: Damiran, Daalkhaijav, DelCurto, Timothy, Johnson, Douglas, Findholt, Scott, and Johnson, Bruce
Abstract:: We assessed a photographic technique to estimate shrub yield and utilization of common snowberry, snowbrush, and heart-leafed willow found in mixed-conifer rangelands. We determined the correlation between green leaf area size (LA) and forage yield (Y) and compared plant utilization estimated by photographic technique (ULA) to actual utilization (UY) values....
Resource Type:: Research Paper

Research results on collection work of rangeland forages and forage species germplasm in some parts of Mongolia

Creator:: Damdin, Tsogoo, Sheehy, Dennis, Sharav, Batsukh, Darizav, Bor, and Damiran, Daalkhaijav
Abstract:: Vegetation and geographic region including forest steppe in Khangai Range, mountain steppe in Mongol Altai, desert steppe in the Great Lakes Depression, the Valley of the Lakes and Gobi Altai Mountains and Zuungar and Trans-Altai Gobi were covered by the scope of the investigation. 181 samples of 123 plant species...
Resource Type:: Research Paper

Nutritive Quality of Flowers in Some Early-Plants

Creator:: Damiran, Daalkhaijav
Abstract:: In spring time, animals, goats and sheep in particular, prefer to eat flowers Pulsatilla multifida, and Iris tenifolia. Pulsatilla's flower contains sugar 20.33, starch 6.71, cellulose 19.15, lignin 6.50, and acid detergent fibre (ADF) 24.88, neutral detergent fibre (NDF) 32.55, hemicellulose 7.67, and protein 14.27 percent. Dry matter digestibility (DMD),...
Resource Type:: Research Paper

Evaluation of total hip arthroplasty research in the US and Europe

Creator:: Simmons, Marcy J.
Abstract:: Background: Hip replacements are considered routine operations which improve the quality of life in patients by reducing pain and restoring function. There are many variations in prostheses with varying benefits and disadvantages. Methods: Literature from the United States and Europe was collected on total hip replacements between 2001 and the...
Resource Type:: Research Paper

“SeW: A Search for Selenosulfide Bonding” and “Severity of Damage Inflicted on Intercellular Disulfide Bonds as a Result of UV Radiation”

Creator:: Dutcher, Kendall
Abstract:: Part 1: White muscle disease (WMD), a degenerative muscle disease brought on by a deficiency of the essential trace nutrient selenium, is thought to be mediated by the protein Selenoprotein W (SeW). In its relationship with WMD, SeW, like many selenoproteins, binds to glutathione, serving some purpose in redox mechanisms...
Resource Type:: Undergraduate Thesis and Research Paper

Visual Obstruction: Weight Technique for Estimating Production on Northwestern Bunchgrass Prairie Rangelands

Creator:: Damiran, Daalkhaijav, DelCurto, Timothy, Darambazar, Enkhjargal, Clark, Abe A., Kennedy, Patricia L., and Taylor, Robert
Abstract:: The estimation of standing crop is important in the management of rangeland resources. Direct measurements by clipping, drying, and weighing of herbaceous vegetation are time-consuming and labor-intensive. Therefore, non-destructive methods for efficiently and accurately estimating standing crop are needed in rangeland forage management. We assessed a visual obstruction (VO) technique...
Resource Type:: Research Paper

Species Composition and Diversity on Northwestern Bunchgrass Prairie Rangelands

Creator:: Darambazar, Enkhjargal, DelCurto, Timothy, Damiran, Daalkhaijav, Clark, Abe, and Taylor, Robert
Abstract:: Management and conservation of rangelands are increasingly concerned with maintaining productivity, species composition, and diversity of native plant communities. We estimated aboveground annual productivity, species composition, and diversity of a native bunchgrass type community across 1152, 0.5 m2 plots at The Nature Conservancy’s Zumwalt Prairie Preserve in northeastern Oregon. Standing...
Resource Type:: Research Paper

Subject Search Disconnect: Or, How Do Our Users Want to Search for Subject Information?

Creator:: Mellinger, Margaret and Nichols, Jane
Abstract:: Program description: Do users want simpler access to "best sources" for subject research? Should libraries filter information by discipline, subject area or course? Should information be tailored to undergraduate level? This presentation will present findings from research on these and other questions.
Resource Type:: Presentation and Research Paper

Teacher perspectives in ocean sciences education : a look at the SMILE-CIOSS partnership

Creator:: Rice, Bronwen
Abstract:: The Cooperative Institute for Oceanographic Satellite Studies (CIOSS) partners with The Science and Math Investigative Learning Experiences (SMILE) Program to bring ocean sciences and satellite oceanography to high school students and teachers around the state of Oregon. This study was conducted as a formative program assessment during the third year...
Resource Type:: Research Paper

Ten months as an intern with NOAA's hazardous materials response project

Creator:: Thompson, Michael A.
Resource Type:: Research Paper

Optimization of environmental factors for effective detection of Bean yellow mosaic virus in Verbena x hybrida

Creator:: Obermeyer, Angela L.
Abstract:: Horticultural and nursery crops are the leading agricultural commodity in Oregon. Among currently grown nursery plants, Verbena x hybrida is a staple ornamental. It is grown and shipped worldwide, thus requiring a high level of certainty concerning the plants’ health and potential viability. V. x hybrida cultivars have been infected...
Resource Type:: Research Paper

Tracking website data-collection and privacy practices with the iWatch Web Crawler

Creator:: Jensen, Carlos, Sarkar, Chandan, Jensen, Christian, and Potts, Colin
Abstract:: In this paper we introduce the iWatch web crawler, a tool designed to catalogue and analyze online data practices and the use of privacy related indicators and technologies. Our goal in developing iWatch was to make possible a new type of analysis of trends, the impact of legislation on practices,...
Resource Type:: Research Paper

The role of social networks in students' learning experiences

Creator:: Ilaria, Liccardi, Ounnas, Asma, Pau, Reena, Massey, Elizabeth, Kinnunen, Paivi, Lewthwaite, Sarah, Midy, Marie-Anne, and Sarkar, Chandan
Abstract:: The aim of this research is to investigate the role of social networks in computer science education. The Internet shows great potential for enhancing collaboration between people and the role of social software has become increasingly relevant in recent years. This research focuses on analyzing the role that social networks...
Resource Type:: Research Paper

Energy flow as determined by rates of litter decomposition

Creator:: Gilmour, C. M., Lingg, A. J., Youngberg, C. T., Platt, R. L., Beck, S. M., and U.S. International Biological Program. Coniferous Forest Biome
Resource Type:: Research Paper

Burning Douglas-fir slash : physical, chemical, and microbial effects in the soil

Creator:: Neal, John Lloyd, Wright, Ernest, 1899-, Bollen, Walter Beno, 1896-, and Oregon State University. Forest Research Laboratory
Resource Type:: Research Paper

Log-scale and lump-sum timber selling on federal lands in western Oregon

Creator:: Beuter, John H., Arney, James Douglas, 1941-, and Oregon State University. Forest Research Laboratory
Abstract:: Considerable interest has arisen in the relation between timber-selling procedures and the accomplishment of timber-selling objectives on public lands in the West. Procedures of public agencies for measuring and paying for timber by log scale or by lump sum have attracted special attention. There are significant differences in the two...
Resource Type:: Research Paper

Demand for dissolved oxygen exerted by finely divided logging debris in streams

Creator:: Ponce, Stanley L., Brown, George Wallace, 1939-, and Oregon State University. Forest Research Laboratory
Resource Type:: Research Paper

Lateral bearing strength of fasteners in lumber-plywood joints treated with fire retardants

Creator:: Johnson, James W. and Oregon State University. Forest Research Laboratory
Abstract:: Joints were fabricated from different combinations of untreated and fire-retardant- treated (FRT) Douglas-fir dimension lumber and 3/8-inch plywood. Eight types of fasteners and three fire-retardant treatments were tested. Joint specimens were exposed 2 and 7 years in cold, standard, and warm-humid conditions, then tested in lateral bearing. Best overall performance...
Resource Type:: Research Paper

Albina's Story

Creator:: Josh, Meaghan
Resource Type:: Research Paper

Maximum crown-width equations for southwestern Oregon tree species

Creator:: Paine, David P., Hann, David W., and Oregon State University. Forest Research Laboratory
Resource Type:: Research Paper

Equations for predicting height to crown base for fourteen tree species in southwest Oregon

Creator:: Ritchie, Martin W., Hann, David W., and Oregon State University. Forest Research Laboratory
Abstract:: Equations are presented for predicting height to crown base (or bole ratio) for fourteen species of trees common to the mixed-conifer zone of southwest Oregon. Nonlinear regression was used to fit a weighted logistic function for each species. The independent variables include height, crown competition factor in larger trees, stand...
Resource Type:: Research Paper

Equations for predicting the height to crown base of six tree species in the central western Willamette Valley of Oregon

Creator:: Zumrawi, Abdel Azim M. A., Hann, David W., and Oregon State University. Forest Research Laboratory
Abstract:: This paper presents equations developed to predict the height to live crown base of six species in the central western Willamette Valley of Oregon. Weighted nonlinear regression was used to fit a separate logistic equation for each species. The predictor variables are total tree height, crown competition factor in trees...
Resource Type:: Research Paper

Equations for predicting the 5-year height growth of six conifer species in southwest Oregon

Creator:: Ritchie, Martin W., Hann, David W., and Oregon State University. Forest Research Laboratory
Abstract:: Equations for predicting individual-tree height growth per 5-year period are presented for Douglas-fir, white fir, grand fir, ponderosa pine, sugar pine, and incense-cedar growing in the mixed-conifer zone of southwest Oregon. The data used to develop the equations came from 3,648 trees sampled from 391 stands in the study area....
Resource Type:: Research Paper

Leading the Way to Real Progress: The Portland Urban League, 1964 - 1970

Creator:: Seher, Andrew
Resource Type:: Research Paper

The relationships between predatory fish, forage fishes, and juvenile salmonid marine survival off the Columbia River: a simple trophic model analysis

Creator:: Emmett, Robert L. and Sampson, David B.
Abstract:: A trophic model that simulates interactions between a predatory fish (Pacific hake, Merluccius productus), forage fish, and juvenile salmon off the Columbia River was constructed to identify if trophic interactions could account for marine mortality of Columbia River juvenile salmon. The model estimates the number of juvenile salmon that are...
Resource Type:: Research Paper

Recent pre-recruit Pacific hake (Merluccius productus) occurrences in the Northern California Current suggest a northward expansion of their spawning area

Creator:: Phillips, A. Jason, Ralston, Stephen, Brodeur, Richard D., Auth, Toby D., Emmett, Robert L., Johnson, Carrie, and Wespestad, Vidar G.
Abstract:: Coastal Pacific hake (Merluccius productus) are known to spawn in the southern California Bight from January to March, migrate north during late spring and summer to feed off Oregon, Washington, and British Columbia, and then move back to southern California in the fall. Juvenile Pacific hake nursery areas have been...
Resource Type:: Research Paper

Seasonal food web models for the Oregon inner-shelf ecosystem : investigating the role of large jellyfish

Creator:: Ruzicka, James J., Brodeur, Richard D., and Wainwright, Thomas C.
Abstract:: Previously published in California Cooperative Oceanic Fisheries Investigations Progress Report, 2007, Vol.48; access courtesy of publisher and authors.
Resource Type:: Research Paper

Lakeview Newcomers: Mexican and Caucasian Perspectives

Creator:: Johnson, Carly
Abstract:: This paper focuses on Mexican and Caucasian migration to Lakeview, Oregon. It looks at why people choose to do so and the challenges they face in their new community. Special attention is paid to grocery shopping and gardening, as this research was conducted as part of a larger project on...
Resource Type:: Research Paper

Health Consciousness in Lakeview

Creator:: Gordon, Allegra
Abstract:: This paper explores the meaning of healthy eating in Lakeview, Oregon. It focuses on what community members think about the food available in the community primarily through restaurants and grocery stores. Themes discussed in this paper include the quality of produce, the lack of variety in restaurants, and the isolation...
Resource Type:: Research Paper

Ranching in Lakeview

Creator:: Ngo, Toan
Abstract:: This paper focuses on the ranching industry and ranching culture of Lakeview, Oregon.
Resource Type:: Research Paper

School Food in Lakeview

Creator:: Ngo, Toan
Abstract:: This paper explores the school food system in Lakeview, Oregon and the consequences of the community's changing economic status.
Resource Type:: Research Paper

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