Addressing The Challenges Facing Wheat Production: Nebraska And International Breeding Efforts, 2019 University of Nebraska - Lincoln
Addressing The Challenges Facing Wheat Production: Nebraska And International Breeding Efforts, Sarah Blecha
Doctoral Documents from Doctor of Plant Health Program
Bread wheat, Triticum aestivum L., provides 20 percent of the global daily calorie intake. It is the third most important food crop, after rice and corn. Biotic challenges significantly reduce wheat yield; chemical control can be a solution but can be cost prohibitive for subsistence farmers. For many farmers, genetic resistance to biotic stresses can be the most cost effective solution.
The International Center for Agricultural Research in the Dry Areas (ICARDA) and the Nebraska Small Grains Breeding Program have been addressing these wheat production challenges. ICARDA is part of an international research consortium to increase wheat yield and tolerance ...
Application Of Remote Sensing Technology In Water Resources Management, 2019 University of Nebraska-Lincoln
Application Of Remote Sensing Technology In Water Resources Management, Mahesh Pun
Civil Engineering Theses, Dissertations, and Student Research
The primary goal of this dissertation was to leverage the capabilities of remote sensing technology for capturing detailed spatial information at different spatial resolutions to monitor agricultural crops and generate accurate input datasets for water resources models. This dissertation is divided into three different research studies. In the first study, a remote sensing classification method was developed for classifying irrigated and non-irrigated fields that integrates Vegetation indices with surface energy balance fluxes. The method was applied in the COHYST2010 hydrological model region with wide climate variation and to multiple growing seasons with results that were 92.1% accurate and explained ...
Pittsburg State University Goes Native: A Study On The Resources And Wildlife Attraction Of A Native Pollinator Garden On A College Campus, Morgan Smith, Christine Brodsky
Native pollinator gardens benefit urban communities by promoting pollination and providing support for native biodiversity conservation. Urban green spaces encourage social and physical activity, promote education, and positively influence public health in urban dwellers. Many studies have been conducted in order to fully understand the importance of native species reintroduction. The continuous research in this area of urban ecology can lead to better conservation and sustainability practices. This paper examines what kind of resources (i.e. costs, plants, area) are required to create a pollinator/native garden on a college campus and what kind of wildlife can be attracted ...
A Gis Model For Apiary Site Selection Based On Proximity To Nectar Sources Utilized In Varietal Honey Production On Former Mine Sites In Appalachia, Douglass W. Potter
Theses and Dissertations--Forestry and Natural Resources
Beekeepers in Appalachia market varietal honeys derived from particular species of deciduous trees; however, finding places in a mountainous landscape to locate new beeyards is difficult. Site selection is hindered by the high up-front costs of negotiating access to remote areas with limited knowledge of the available forage. Remotely sensed data and species distribution modeling (SDM) of trees important to beekeepers could aid in locating apiary sites at the landscape scale. The objectives of this study are i) using publicly available forest inventory data, to model the spatial distribution of three native tree species that are important to honey producers ...
Three Sister Crops: Understanding American Indian Agricultural Practices Of Corn, Beans And Squash, 2018 Hoven High School, Hoven, South Dakota
Three Sister Crops: Understanding American Indian Agricultural Practices Of Corn, Beans And Squash, Sara Colombe, Madhav P. Nepal, Larry B. Browning, Matthew L. Miller, P. Troy White
iLEARN Teaching Resources
American Indians have practiced an inter-planting system to produce corn, beans, and squash, for generations. These crops are known as the “Three Sisters”. In this lesson developed for secondary agriscience curriculum, students will understand the past, current and future production practices of the three important crops. Students will also apply their knowledge to understand the crop selection process and relate to the changing environment.
Phylogeny And Population Genetic Analyses Reveals Cryptic Speciation In The Bombus Fervidus Species Complex (Hymenoptera: Apidae), Jonathan B. Koch, Juanita Rodriguez, James P. Pitts, James P. Strange
Ecology Center Publications
Bumble bees (Bombus Latrielle) are significant pollinators of flowering plants due to their large body size, abundant setae, and generalist foraging strategies. However, shared setal coloration patterns among closely and distantly related bumble bee species makes identification notoriously difficult. The advent of molecular genetic techniques has increased our understanding of bumble bee evolution and taxonomy, and enables effective conservation policy and management. Individuals belonging to the North American Bombus fervidus species-complex (SC) are homogenous in body structure but exhibit significant body color phenotype variation across their geographic distribution. Given the uncertainty of the genealogical boundaries within the SC, some authors ...
Wild Bees Of Grand Staircase-Escalante National Monument: Richness, Abundance, And Spatio-Temporal Beta-Diversity, Olivia Messinger Carril, Terry Griswold, James Haefner, Joseph S. Wilson
All PIRU Publications
Interest in bees has grown dramatically in recent years in light of several studies that have reported widespread declines in bees and other pollinators. Investigating declines in wild bees can be difficult, however, due to the lack of faunal surveys that provide baseline data of bee richness and diversity. Protected lands such as national monuments and national parks can provide unique opportunities to learn about and monitor bee populations dynamics in a natural setting because the opportunity for large-scale changes to the landscape are reduced compared to unprotected lands. Here we report on a 4-year study of bees in Grand ...
South American Leaf-Cutter Bees (Genus Megachile) Of The Subgenera Rhyssomegachile And Zonomegachile, With Two New Subgenera (Hymenoptera: Megachilidae), Víctor H. González, Terry Griswold, Michael S. Engel
All PIRU Publications
Leaf-cutter bees (genus Megachile Latreille) are among the most common and diverse group of bees. However, the identity and taxonomic placement of many species are problematic and species identification is often difficult. Some species are known only from a single specimen or from one of the sexes, and identification keys are not available for many groups. We address these taxonomic issues for the subgenera Rhyssomegachile Mitchell and Zonomegachile Mitchell, two poorly known South American lineages of leaf-cutter bees. We provide comparative diagnoses, redescriptions, illustrated identification keys, new geographical records, and designate needed neotypes for Megachile cara Mitchell, M. gigas Schrottky ...
Management Implications Of Regionally-Distinct Populations Of The Blue Orchard Bee, 2018 Utah State University Extension
Management Implications Of Regionally-Distinct Populations Of The Blue Orchard Bee, Diane G. Alston
Funded Research Records
No abstract provided.
Radical Social Ecology As Deep Pragmatism: A Call To The Abolition Of Systemic Dissonance And The Minimization Of Entropic Chaos, Arielle Brender
Student Theses 2015-Present
This paper aims to shed light on the dissonance caused by the superimposition of Dominant Human Systems on Natural Systems. I highlight the synthetic nature of Dominant Human Systems as egoic and linguistic phenomenon manufactured by a mere portion of the human population, which renders them inherently oppressive unto peoples and landscapes whose wisdom were barred from the design process. In pursuing a radical pragmatic approach to mending the simultaneous oppression and destruction of the human being and the earth, I highlight the necessity of minimizing entropic chaos caused by excess energy expenditure, an essential feature of systems that aim ...
Mr448: Bees And Their Habitats In Four New England States, Alison C. Dibble, Francis A. Drummond, Anne L. Averill, Kalyn Bickerman-Martens, Sidney C. Bosworth, Sara L. Bushman, Aaron K. Hoshide, Megan E. Leach, Kim Skyrm, Eric Venturini, Annie White
Bees are crucial to pollination in unmanaged ecosystems and some crops, and their roles are increasingly understood in four states in the Northeastern U.S., abbreviated “NNE” in this paper: Maine (ME), Massachusetts (MA), New Hampshire (NH), and Vermont (VT). The four states have in common many native bee and plant species, forest types, and natural communities. They share drought events and risk of wildfire (Irland 2013). They are exposed to many of the same major storms (e.g., hurricanes, Foster 1988), pollution events (Hand et al. 2014), and effects ascribed to climate change (Hayhoe et al. 2008). Beekeeping enterprises ...
T Socio-Ecology Of Managed Honeybees (Apis Mellifera) In The Louisville Metro Area., 2018 University of Louisville
T Socio-Ecology Of Managed Honeybees (Apis Mellifera) In The Louisville Metro Area., Haileigh M. Arnold
Electronic Theses and Dissertations
Humans have a long history of the practice of beekeeping to harness the power of pollination. This managed pollinator system consists of beekeepers, honeybees, and their environment. However, recent disease, pesticide use, and land use factors honeybee threaten this relationship. In the face of such concerns it is important to examine the factors that impact and can help sustain our managed pollinator systems. In this thesis, the national and Kentucky state-level policies that affect managed pollinator systems were examined and socio-ecological factors that may contribute to honeybee hive growth and losses were assessed along an urban development gradient in Louisville ...
The Effect Of Three Different Mulches On Weed Presence, Soil Characteristics, And Zinnia Growth, 2018 Murray State University
The Effect Of Three Different Mulches On Weed Presence, Soil Characteristics, And Zinnia Growth, Anmar Muttaleb
Murray State Theses and Dissertations
Organic and inorganic mulching helps to control weeds. Mulching helps cultivated plants to grow by inhibiting the growth of weeds, retaining soil moisture, and regulating the temperature of soil. The objective of this study was to determine the effects of different organic mulches on weed presence, soil characteristics, and growth of Zinnia elegans. The mulches used in studying Zinnia elegans were wheat straw, non-shredded Miscanthus (M. × giganteus), and shredded Miscanthus (M. × giganteus) mulch. A Randomized Complete Block Design (RCBD) was used in the study, with different quantitative methods were used to collect data. ANOVA tests were utilized to statistically ...
Rearing Queen Honey Bees: A Bullet Journal, 2018 College of the Atlantic
Rearing Queen Honey Bees: A Bullet Journal, Marianna Mead
This bullet journal documents a summer research project focused on rearing queen honey bees in Maine. Containing time logs, checklists, timelines, and pictures, this annotated journal provides information on how to rear queen honey bees. It includes details on how to make a starter hive, the dangers of disease, the benefits of queen rearing and a grafting day checklist.
Honey, We Killed The Bees: Effectiveness Of U.S. Federal, State And Municipal Neonicotinoid Policies In Mitigating Managed Honey Bee Colony Loss, 2018 University of Colorado, Boulder
Honey, We Killed The Bees: Effectiveness Of U.S. Federal, State And Municipal Neonicotinoid Policies In Mitigating Managed Honey Bee Colony Loss, Rose Briggs
Undergraduate Honors Theses
This thesis analyzes existing policies regulating neonicotinoids at the federal, state, and municipal levels of the United States government. The research question examines effectiveness of these policies in mitigating honey bee colony loss among managed colonies within the U.S. Through a policy analysis, as well as a survey of beekeepers in Colorado, Oregon and New Mexico, existing policies are found to be ineffective in their approach, due to multiple loopholes and legal obstacles. This paper finds that while there are many stressors contributing to colony loss in the U.S., neonicotinoids have been found to harm honey bees significantly ...
Carter, Fred (Fa 1010), 2017 Western Kentucky University
Carter, Fred (Fa 1010), Manuscripts & Folklife Archives
FA Finding Aids
Finding aid only for Folklife Archives Project 1010. Folk studies student project titled: “Bee-keeping Project,” which includes interviews and survey sheets with brief descriptions of the beekeeping culture in Taylor County, Kentucky. Sheets may include a brief description of belief or item, informant’s name, and a photo of bee culture.
A Performance Study Of Apis Mellifera With Dietary And Forage Restrictions During Spring Colony Establishment In Lyon County, Kentucky, Dominique Wood
Murray State Theses and Dissertations
One-third of our worldwide fruit, nut and vegetable production is completely dependent on the existence of pollinators. Commercial honey bees, Apis mellifera, have an annual economic value of $15 billion in the U.S. Additionally, their honey is valued at $150 million annually. In Fall 2006, commercial beekeepers observed sudden mass disappearances of whole colonies. By Spring 2007, the condition, dubbed Colony Collapse Disorder (CCD), raised environmental and fiscal concerns while the cause(s) continued to be sought. Forensic examinations of hive samples did not reveal a singular cause of CCD. The results pointed to a collection of detrimental factors ...
Letter From The Dean, 2017 University of Arkansas, Fayetteville
Letter From The Dean, Lona Robertson
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Why We Still Need To Worry About Bees, 2016 Cuny Graduate School of Journalism
Why We Still Need To Worry About Bees, Meaghan Lee Callaghan
American honey bees, and other native bee species, are still in decline, though the specter of colony collapse disorder may be fading behind us. Colony decline, the loss of bees overwinter experienced across the country at a quarter to third lost per hive (sometimes more), is now expected. Losses can include those from colony collapse disorder. The author discusses the different causes for colony decline and speaks to bee health scientists and local beekeepers. Read more at: http://www.meaghanleecallaghan.com/capstone/index.html
Soil-Water Transport Of A Seed Coated Neonicotinoid Pesticide In Soybean/Maize Cultivation Systems, 2016 University of Tennessee, Knoxville
Soil-Water Transport Of A Seed Coated Neonicotinoid Pesticide In Soybean/Maize Cultivation Systems, Geoffrey Nathaniel Duesterbeck
The current decline of the honey bee (Apis mellifera L.) and other beneficial pollinator species is well documented. Several causes have been cited in this decline including: pathogens, pests, nutrition, and pesticide exposure. Since the advent of the neonicotinoid family of pesticides in the 1990’s an increase in honey bee colony loss has been observed. Neonicotinoid pesticides are commonly applied as a seed treatment to cotton, soybean and maize row crops. As the seed germinates, it absorbs the pesticide from the coating then spreads systemically throughout the entire plant. However, a large portion of the seed coating may stay ...