Index Catalog // ScholarsArchive@OSU

Urinary excretion of the mycotoxins lolitrem B and lysergic acid in cattle consuming perennial ryegrass straw over 56 days

Creator:: Neumann, Persia, Duringer, Jennifer M., and Craig, A. Morrie
Abstract:: Perennial ryegrass (Lolium perenne) hay is an important source of forage for a variety of livestock species, and is most common in cool, coastal climates such as the Pacific Northwest. An endophyte fungus called Neotyphodium lolii frequently colonizes this grass to promote insect resistance, drought tolerance, and growth enhancement without...
Resource Type:: Poster

Using Cattle as a Tool : Restoring the Sumpter Valley Dredge Tailings

Creator:: Defrees, Dallas K.
Abstract:: A period of over forty years (1913-1954) of gold dredging dramatically changed the landscape of Sumpter Valley, Oregon into a rocky, uninhabitable terrain. The Defrees Ranch LLC used cattle feeding to increase top soil, vegetation, and habitat on the dredge tailings. This thesis investigated the use of feeding cattle as...
Resource Type:: Honors College Thesis
Full Text:: dredge waste sites. A belt line transect method was used to complete a usable forage test and a species

Diet overlap by DNA metabarcoding of mule deer, elk, and cattle in ponderosa pine forest of eastern Oregon

Creator:: Faber, M. Kate
Abstract:: Millions of acres of rangeland in the western U.S. is shared habitat by elk (Cervus canadensis), mule deer (Odocoileus hemionus), and cattle (Bos taurus). Potential competition between these ungulates for the same forage species can be understood from their diet composition. I used DNA metabarcoding methods with trnL primers to...
Resource Type:: Honors College Thesis
Full Text:: forage species can be understood from their diet composition. I used DNA metabarcoding methods with

A Needs Assessment Survey of Small Farmers in Oregon's Mid-Willamette Valley

Creator:: Wever, Erin L.
Abstract:: OSU Extension provides important educational services to members of the agricultural community. Programming options can be guided by needs assessment surveys, which are used to determine gaps in knowledge and understanding for communities. The objective of this study was to develop and execute a survey to gather information on: 1)...
Resource Type:: Honors College Thesis
Full Text:: ”, “pollinators”, and “habitat for beneficial insects”. Self-identified research interests included “weeds

Pollen fidelity of Apis mellifera L. during pollination of Limnanthes alba Hartw. ex Benth. ssp. alba, Limnanthaceae

Creator:: Watkins, Ann J.
Abstract:: Limnanthes alba, commonly known as meadowfoam is a popular commercial crop because its seed oil is composed of long carbon chains that provide it with high oxidative stability and consequently make it a desirable ingredient in cosmetic products. As a commercial pollinator, the western honey bee, Apis mellifera, may be...
Resource Type:: Honors College Thesis
Full Text:: ; ornithophily, or bird pollination; chriopteriphily, or bat pollination; and entomophily, or insect

Facility Planning for Large Equine Facilities in the Pacific Northwest

Creator:: Glenn, Aimee K.
Abstract:: Large equine facilities are comprised of many different departments (areas) that are necessary for the proper care and maintenance of horses. The placement of departments is often inefficient due to the slow growth of equine facilities. As a result, facility layout becomes a crucial aspect requiring explicit consideration because mandatory...
Resource Type:: Honors College Thesis
Full Text:: is that when the flows represented current feeding practices, such as only sending alfalfa hay to

Creating Useful and Usable Climate Tools for Sagebrush Land Management Through Scientist and Manager Collaboration

Creator:: Brown, Melanie
Abstract:: The sagebrush ecosystem, home to numerous plant and animal species including big sagebrush (Artemisia tridentata) and the endemic greater sage-grouse (Centrocercus urophasianus), has endured fragmentation and degradation of both quantity and quality due to the cumulative and synergistic relationships between an abundance of individual disturbances including grazing, invasive annuals and...
Resource Type:: Undergraduate Thesis

Effects of nesting waterbirds on nutrient levels in mangroves, Gulf de Fonseca, Honduras

Creator:: McFadden, Tyler Neal
Abstract:: Mangroves provide numerous ecosystem services, including biodiversity values such as nesting sites for piscivorous waterbirds. High concentrations of pisicivoirous birds are hypothesized to affect ecosystem dynamics, yet few studies have examined their effects in mangroves. We examined the effects of nutrient enrichment by colonial waterbirds at a mangrove rookery in...
Resource Type:: Honors College Thesis
Full Text:: waterbirds act as important nutrient vectors in many ecosystems (Whelan et al. 2008). These birds forage

Effect of Substrate to Inoculum Ratio on Outcomes of In Vitro Rumen Fermentation Studies

Creator:: Remy, Jon D.
Abstract:: The objective of this study was to identify the varying effects of altering the rumen fluid: substrate ratio on the outcomes of in vitro rumen fermentation. In vitro fermentation is a useful tool for evaluating the energy value of feedstuffs and the effect of feed additives on Volatile Fatty Acid...
Resource Type:: Honors College Thesis
Full Text:: of acetic to propionic acid suggested that the populations favoring forage digestion, which are

Evaluating the mixed species feeding opportunities provided by foraging humpback whales (Megaptera novaeangliae) across ocean ecosystems

Creator:: Ellett, Lindsey G.
Abstract:: Group foraging occurs across many ecosystems and taxa, and benefits some or all individuals in the group by optimizing feeding efficiency. The beater theory describes when individual “beaters” benefit other group members by herding prey into more accessible areas. Humpback whales feed on a variety of small patchy prey, and...
Resource Type:: Honors College Thesis
Full Text:: the likelihood of reproduction. The convoy theory describes how animals may forage in the same areas

ScholarsArchive@OSU

Urinary excretion of the mycotoxins lolitrem B and lysergic acid in cattle consuming perennial ryegrass straw over 56 days

Using Cattle as a Tool : Restoring the Sumpter Valley Dredge Tailings

Diet overlap by DNA metabarcoding of mule deer, elk, and cattle in ponderosa pine forest of eastern Oregon

A Needs Assessment Survey of Small Farmers in Oregon's Mid-Willamette Valley

Pollen fidelity of Apis mellifera L. during pollination of Limnanthes alba Hartw. ex Benth. ssp. alba, Limnanthaceae

Facility Planning for Large Equine Facilities in the Pacific Northwest

Creating Useful and Usable Climate Tools for Sagebrush Land Management Through Scientist and Manager Collaboration

Effects of nesting waterbirds on nutrient levels in mangroves, Gulf de Fonseca, Honduras

Effect of Substrate to Inoculum Ratio on Outcomes of In Vitro Rumen Fermentation Studies

Evaluating the mixed species feeding opportunities provided by foraging humpback whales (Megaptera novaeangliae) across ocean ecosystems

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