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Now showing items 241-260 of 459
The role of terrrestrial habitat in the population dynamics and conservation of pond-breeding amphibians
(University of Missouri--Columbia, 2007)
-structured demographic models for two pond-breeding amphibian species and used these models to determine the potential effects of a range of core terrestrial habitat areas on population size and persistence. I next carried out field experiments designed to improve model...
Effects of prescribed fire on forest soil properties in the Ozark Highlands
(University of Missouri--Columbia, 2020)
/Forest Hills Land Type Association in the Black River Basin of southern Missouri. Weathered from Roubidoux sandstone and Gasconade dolomite, soils at the study sites contain large quantities of coarse fragments and reduced nutrient content. In 2015, fire...
Grasshopper and bee communities on Missouri prairies : comparing reconstructions and remnants
(University of Missouri--Columbia, 2018)
Tallgrass prairies once occupied a large swath of central North America, but now face the combined challenges of habitat loss and fragmentation. In Missouri, where less than 1% the historical prairie remains, prairies are being reconstructed from...
Spring establishment of tall fescue utilizing sunn hemp as a companion crop under rotational grazing management
(University of Missouri--Columbia, 2023)
[EMBARGOED UNTIL 12/01/2024] Tall fescue (Schedonorus arundinaceus (Schreb.) Dumort.) is the predominant perennial cool season grass used for forage in Missouri. It demonstrates a bi-modal seasonal yield distribution with forage production periods...
Evaluation of a solid-liquid manure separation operation
(University of Missouri--Columbia, 2018)
, and barn construction and operating costs. A full-scale barn in Missouri was closely monitored to perform these objectives. Laboratory scale pretreatments and filtrations were conducted to evaluate the practicality of nutrient/water recycling from...
The development of railroads in Missouri to 1860
(University of Missouri--Columbia, 1915)
Railroad construction in Missouri was undertaken by private companies who expected to finance the roads by subscriptions to the capital stock by individuals, towns and counties. Early in 1851 the people realized that the task was too great...
Successful black entrepreneurs in Columbia, Missouri
(University of Missouri--Columbia, 2010)
to successfully compete. The data in this study was collected through a sample of 24 Black business owners who have a physical location, and personal experience with business success in Columbia, Missouri. These respondents represent 20% of all Blacks doing...
What changes in media risk frames reveal about changing attitudes toward modern life: the case of the Greek Press, 1977-2004
(University of Missouri--Columbia, 2006)
and the future through the prism of vulnerability and risk. These sociologists see this predisposition as constituting a new global paradigm of understanding society and social experience, which they sum up with phrases like "world risk society" (Beck...
Toxic schools? Teacher perceptions of indoor air quality and negative place attachment
(University of Missouri--Columbia, 2022)
The perception of indoor air quality (IAQ) in school buildings has garnered much attention. The self-reported experiences of teachers regarding the phenomenon of suffering from toxic IAQ was missing from scholarly work before the onset...
The effects of stress upon erythrocyte resistance in pedigree clean, known carrier and dwarf beef cattle
(University of Missouri., 1958)
"Has the fight against beef cattle dwarfism progressed? Are methods now available whereby the breeder can enjoy a "dwarf-free" production program? These questions are examples of those frequently encountered by the animal husbandry scientist who...
Genetic mapping of soybean cyst nematode resistance and evaluation of resistant germplasm in soybean and pennycress
(University of Missouri--Columbia, 2022)
accession, PI 90763. With recent reports demonstrating the significance of PI 90763 in managing SCN through resistance rotation with PI 88788 (rhg1-b), unraveling the genetics governing SCN resistance in PI 90763 is essential. To decode the genetic...
A study of bloodlines which have produced 2:10 trotters
(University of Missouri--Columbia, 1916)
Text from page iii: The data reported in this thesis are the results of a study of the bloodlines which have been most prominent in the production of individuals of extreme speed. As a basis for this extreme speed, those individuals were used which...
Comparison of thermoregulatory mechanisms in heat sensitive and tolerant breeds of Bos taurus cattle
(University of Missouri--Columbia, 2008)
or minus] 7.5 Kg BW) steers from USDA-ARS, Brooksville, Florida were transported to the Brody Environmental Center at the University of Missouri. Steers were housed for 14 days at thermoneutrality (21C; TN) before 14 days of cyclic heat stress (HS; 26C...
Phytoplankton response to water quality threats in Midwest reservoirs
(University of Missouri--Columbia, 2021)
Harmful cyanobacterial blooms and invasive species threaten water quality. These threats are expected to worsen in the future, emphasizing the need for creative management solutions and a thorough understanding of their ...
The portfolio problem in agricultural cooperatives: an integrated framework
(University of Missouri--Columbia, 2005)
A portfolio problem within agricultural cooperatives arises as a result of the traditional cooperative's property rights structure. As members' investment is tied to patronage, this traditional structure prevents them from adjusting cooperative...
Factors impacting the longevity of principals in rural Missouri: perceptions of secondary principals
(University of Missouri--Columbia, 2022)
The purpose of this mixed methods study was to explore factors that contribute to the retention of secondary school principals in rural settings in Missouri. The overarching research question this study sought to answer is: What factors increase...
Long-term study of successional trends in an oak-dominated forest of central Missouri
(University of Missouri--Columbia, 2006)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Changes in species composition and forest structure were studied over a 36-year period in the Baskett Research and Education Area (BREA) in central Missouri. Permanent plots were...
Assessing the effects of anticoagulant rodenticides on non-target fish species
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Invasive rat species have negatively affected island ecosystems contributing to the decline and extinction of many endemic species. The eradication of rodents on islands can...
Extraction, optimization, and characterization of chia seed mucilage as an emerging biopolymer
(University of Missouri--Columbia, 2022)
), achieving a higher amount of yield with less extraction time compared to other similar studies, which were validated experimentally. As the CSM naturally has a very low density, novel approaches were used to incorporate it in experiments, such as FTIR...
Intelligent orchestration of computation and networking for drone swarm applications
(University of Missouri--Columbia, 2023)
[EMBARGOED UNTIL 5/1/2024] Drone swarms that are equipped with high-resolution sensors and video cameras can benefit many applications (e.g., disaster response management, smart farming, traffic control). This requires ...