Search
Now showing items 41-60 of 69
Effects of fire and thinning on Kansas oak woodlands
(University of Missouri--Columbia, 2017)
Prior to Euro-American settlement, a mosaic of prairie, savanna, woodland, and forest existed within the Forest-Prairie Transition Region of the United States, with anthropogenic fire acting as an important driver in the ...
Impacts of soil management practices on soil fertility in potato-based cropping systems in the Bolivian Andean highlands
(University of Missouri--Columbia, 2010)
Due to changes in climate and socioeconomic developments, current soil management practices in the Bolivian Andean Highlands may be increasing soil degradation thereby threatening food security. A study was established in ...
The impacts of partner abundance on benefits from facultative pollination mutualism
(University of Missouri--Columbia, 2010)
, Trifolium dasyphyllum and T. parryi, that vary in specialization on a shared bumblebee pollinator, Bombus balteatus. I examined a) foraging choices of queen B. balteatus among the clovers and explanatory mechanisms behind observed foraging biases, b) how...
Decision-making and demography of greater white-fronted geese
(University of Missouri--Columbia, 2019)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI--COLUMBIA AT REQUEST OF AUTHOR.] Greater white-fronted geese (Anser albifrons) are Arctic-nesting waterfowl with breeding ranges distributed throughout the Arctic. Due to this broad distribution...
Alleviation of heat stress with Tasco in dairy cows
(University of Missouri--Columbia, 2010)
The present study determined the impact of Tasco, Ascophyllum nodosum, on heat stress in dairy cows. Thirty-two Holstein cows were utilized in a randomized complete block design, during 63 days in summer 2008. Feed intake, ...
Canopy recruitment dynamics in naturally regenerated longleaf pine (pinus palustris) woodlands
(University of Missouri--Columbia, 2017)
The ecological and cultural values of the longleaf pine (Pinus palustris) ecosystem, in combination with an approximately 97 percent loss in historic range, has led to increasing interest in ecosystem restoration and ...
Social capital and membership in dairy cooperatives in Kenya
(University of Missouri--Columbia, 2018)
Dairy cooperatives in Kenya have been promoted for over 50 years as an important mechanism for providing collective bargaining power for the rural poor (Dobrin, 1970; Musalia, et al, 2007). The cooperative business model ...
Nitrogen management strategies to improve corn growth and reduce soil greenhouse gas emissions from claypan soils
(University of Missouri--Columbia, 2018)
Adoption of nitrogen (N) management strategies to minimize gaseous N loss from agriculture while maintaining high yield production is increasingly important for an exponentially growing population. Agricultural management on poorly-drained claypan...
Solar adoption in the rural Midwest : the diffusion of solar photovoltaic technology in two Midwestern states
(University of Missouri--Columbia, 2018)
in overcoming these barriers while promoting PV arrays as an energy source in rural areas where many residents are slow to embrace renewable energy. Twenty-four participants from Illinois and Missouri, representing various sectors of the solar industry, provided...
Spatial distribution and historical dynamics of threatened conifers of the Dalat Plateau, Vietnam
(University of Missouri--Columbia, 2011)
The Dalat Plateau is one of several biodiversity hotspots in Vietnam. It is considered to be one of five centers of plant diversity and one of three endemic bird areas in the country. Almost half of the conifer species ...
Enhancing bluegill production through least-cost diet development and novel rearing strategies
(University of Missouri--Columbia, 2010)
Amidst growing demand for large, food-size bluegill Lepomis macrochirus, lack of an affordable, balanced diet and inadequate rearing technologies remain the major concerns of bluegill producers seeking to run profitable ...
Playa wetland plant and soil response to predicted climate and land use change in the southern Great Plains
(University of Missouri--Columbia, 2019)
, and microbial community and structure; (2) compare ecosystem response to changing climatic conditions between Northern (Nebraska) and Southern (Texas) playa soils; and (3) assess effectsof increased agricultural nitrogen inputs on playa plant communities...
Efficacy of organic herbicides in agronomic crops and improvement of soil biota with organic production practices
(University of Missouri--Columbia, 2019)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI--COLUMBIA AT REQUEST OF AUTHOR.] CHAPTER I. Literature Review. CHAPTER II. Impact of Organic Herbicides in Corn (Zea mays). Abstract: Tillage is a weed control method in organic corn production...
Remobilization of leaf nitrogen in stockpiled tall fescue
(University of Missouri--Columbia, 2010)
Missouri's beef industry is supported by more than five million hectares of pasture containing the grass tall fescue (Lolium arundinaceum). Stockpiled (accumulated autumn growth used for winter grazing) tall fescue leaf macronutrients decrease...
Evaluating pig performance, carcass merit and processed pork quality when chestnuts and acorns are fed to Duroc-influenced pig genetics during late finishing
(University of Missouri--Columbia, 2019)
The objective of this study was to determine effects of feeding chestnuts and acorns on growth performance, carcass quality and further processed products of Duroc/Duroc crossbred finishing barrows. Barrows (n = 30) were ...
Perforated sovereignty : the geopolitical dilemma of Aegean hydrocarbons
(University of Missouri--Columbia, 2018)
The Aegean Sea, as an integral portion of the Mediterranean Sea, has always been a region endowed with special significance. Either as a familiar route of trade or culture, or as a fault-line between hostile civilizations and states, this vortex...
Determination of fat percentage using three different methods within marbling scores on beef longissimus muscle
(University of Missouri--Columbia, 2010)
Consumers are concerned with fat consumption from meat products and the ability to determine fat has changed with recent technological advances. The objective of this study was to determine fat percentage within marbling ...
Applications of ancestry estimation in cattle population genetics
(University of Missouri--Columbia, 2019)
Accounting for ancestry and cryptic population structure is important in population genetic data analysis. The estimation of ancestry can help elucidate the effects of admixture or stratification on allele and genotype ...
Amphibians as wetland restoration indicators on Wetlands Reserve Program sites in Lower Grand River basin, Missouri
(University of Missouri--Columbia, 2010)
My research goal was to determine if hydrological and biological wetland characteristics had been restored to Wetlands Reserve Program (WRP) sites in the Lower Grand River basin, north-central Missouri, as indicated by distribution, recruitment...
Soil health assessment of the Sanborn Field long-term experimental study
(University of Missouri--Columbia, 2018)
cropping systems, soil management and landscape slope positions on the soil health characteristics of the Sanborn Field long-term experimental study in Columbia, Missouri, United States. Soil samples were collected on each of four dates over two years (8 th...