The Α-Glycerophosphate Cycle In Drosophila Melanogaster. Iii. Relative Viability Of "Null" Mutants At The Α-Glycerophosphate Dehydrogenase-1 Locus, Stephen J. O'Brien, Bruce Wallace, Ross J. Macintyre
No abstract provided.
An Analysis Of Gene-Enzyme Variability In Natural Populations Of Drosophila Melanogaster And D. Simulans, Stephen J. O'Brien, Ross J. Macintyre
No abstract provided.
Periodic Physical Disturbance: An Alternative Method For Controlling Sitophilus Zeamais (Maize Weevil) Infestation, Rashid A. Suleiman, Kurt A. Rosentrater, Bernard Chove
Agricultural and Biosystems Engineering Publications
Sitophilus zeamais Motschulsky is the most important insect pest of stored maize in tropical regions. The objective of this study was to determine the practicality of periodic physical disturbance on S. zeamaismortality and its adoption by smallholder farmers in developing countries. In this experiment, treatments and control were arranged in a randomized block design with three replications and three storage times in three regions of Tanzania. Region was used as the blocking variable. A total of 108 clean 20-L plastic containers were each loaded with 10 kg of fresh white dent corn and 0.50 kg of maize infested ...
The Spatial Distribution And Density Of The Emerald Ash Borer Infestation In Rock Island And Moline, Il, 2016 Augustana College, Rock Island Illinois
The Spatial Distribution And Density Of The Emerald Ash Borer Infestation In Rock Island And Moline, Il, Kendall Smith, Victoria Lason, Tierney Brosius, Michael Reisner
Celebration of Learning
The Emerald Ash Borer (EAB) Agrilus planipennis Fairmaire (Copleoptera: Buprestidae) is a destructive colonizer of ash trees that arrived in the United States in 2002. Since then, EAB has been detected in 22 states and two Canadian provinces, and has proven to be a complicated management issue for many cities including Rock Island. The purpose of this study was to determine the spatial distribution and density of the EAB infestation in Rock Island, Ill and to identify potential correlations between host larval densities and visual symptoms. A continuation of spatial distribution was determined through a tree survey examining specific species ...
Rapid Museum, 2016 Niagara Regional Rhyme Gland Laboratory
Rapid Museum, Gary Barwin
Poetry by Gary Barwin
Sub-Lethal Effects Of Dietary Neonicotinoid Insecticide Exposure On Honey Bee Queen Fecundity And Colony Development, 2016 University of Nebraska-Lincoln
Sub-Lethal Effects Of Dietary Neonicotinoid Insecticide Exposure On Honey Bee Queen Fecundity And Colony Development, Judy Wu-Smart, Marla Spivak
Faculty Publications: Department of Entomology
Many factors can negatively affect honey bee (Apis mellifera L.) health including the pervasive use of systemic neonicotinoid insecticides. Through direct consumption of contaminated nectar and pollen from treated plants, neonicotinoids can affect foraging, learning, and memory in worker bees. Less well studied are the potential effects of neonicotinoids on queen bees, which may be exposed indirectly through trophallaxis, or food-sharing. To assess effects on queen productivity, small colonies of different sizes (1500, 3000, and 7000 bees) were fed imidacloprid (0, 10, 20, 50, and 100 ppb) in syrup for three weeks. We found adverse effects of imidacloprid on queens ...
Evaluating The Interaction Between Buckwheat, Fagopyrum Esculentum (Polygonaceae) And Wireworm Agriotes Sputator L. (Coleoptera: Elateridae), 2016 The University of Western Ontario
Evaluating The Interaction Between Buckwheat, Fagopyrum Esculentum (Polygonaceae) And Wireworm Agriotes Sputator L. (Coleoptera: Elateridae), Yeritza L. Bohorquez
Electronic Thesis and Dissertation Repository
Laboratory experiments were carried out to determine if buckwheat, Fagopyrum esculentum, produces phytochemicals that act as deterrents, anti-feedants, or toxins against Agriotes sputator wireworms. Choice assays were conducted to test the attractiveness of germinating, branching and flowering buckwheat, red spring wheat (Triticum spp) and island barley (Hordeum vulgare) to the larvae. There was no evidence that the wireworms were deterred by buckwheat and the germinating stage of all three crops was the most attractive. Twenty-one day, no choice feeding assays were conducted to determine change in mass and mortality of A. sputator larvae when fed buckwheat or barley; no differences ...
Ifly: Code Development For An App To Support Automating Entomological Data Collection, 2016 New Mexico State University
Ifly: Code Development For An App To Support Automating Entomological Data Collection, Michael P. Cosentino, Trevor I. Stamper
The Summer Undergraduate Research Fellowship (SURF) Symposium
We are developing a prototype entomological data-collection application called "iFly," which runs on a field-capable iPad device. In this phase, we tackled refining screens and introducing a database manager to streamline operations as info is entered, stored, retrieved and delivered. We used SQLite3 database in Apple's Xcode Integrated Development Environment (IDE). Xcode gives mixed programming results. Apple's iOS environment ensures functional and fairly error-free apps can be built. But the sophisticated Xcode IDE requires specialist developers and valuable project time is spent as new programmers learn key techniques. The iFly prototype was advanced with improved database integration; however ...
Breeding Season Avian Community Composition And Prey Availability In Eucalyptus And Slash Pine Plantations Of Southwestern Louisiana, 2016 Stephen F. Austin State University
Breeding Season Avian Community Composition And Prey Availability In Eucalyptus And Slash Pine Plantations Of Southwestern Louisiana, Elizabeth J. Messick
Electronic Theses and Dissertations
The increased demand for wood products related to industries such as bioenergy and paper has resulted in a need for a consistent supply of raw materials. Eucalyptus (Eucalyptus spp.) plantations have the potential to boost wood production for pulpwood and biomass feedstocks. Species characteristics such as rapid, indeterminate growth, coppice regrowth, resistance to disease and insects, and tolerance of a range of environmental conditions make these species successful short-rotation woody crops (SRWCs). Camden white gum (Eucalyptus benthamii), a more cold tolerant species, has made management of eucalyptus plantations viable in southern portions of the United States such as the Western ...
Characterization Of The Arthropod Communities And Aphid Feeding Behavior Associated With Perennial Warm-Season Grasses (Poaceae) Composition In Nebraska And Wisconsin, 2016 University of Nebraska-Lincoln
Characterization Of The Arthropod Communities And Aphid Feeding Behavior Associated With Perennial Warm-Season Grasses (Poaceae) Composition In Nebraska And Wisconsin, Kathryn M. Keller
Dissertations and Student Research in Entomology
Switchgrass, Panicum virgatum L., along with two other perennial warm-season grasses, big bluestem (Andropogon gerardii Vitman) and indiangrass, (Sorghastrum nutans L), compose a majority of the grasses found in North American tall grass prairies and have recently received attention as potential bioenergy feedstock. Limited research has been carried out on the relationship of arthropods on these three warm-season grasses in North America. Due to this limited research, the first objective of this research was to document the arthropods associated with switchgrass, big bluestem and indiangrass in Nebraska and Wisconsin over three sampling seasons. More than 10 arthropod orders and over ...
Over-Summering Ecology Of The Wheat Curl Mite (Aceria Tosichella Keifer), 2016 University of Nebraska - Lincoln
Over-Summering Ecology Of The Wheat Curl Mite (Aceria Tosichella Keifer), Anthony J. Mcmechan
Dissertations and Student Research in Entomology
The wheat-mite-virus complex is a consistent and significant threat to winter wheat production in the western Great Plains. This complex consists of three viruses (Wheat streak mosaic virus, Triticum mosaic virus, and Wheat mosaic virus that are transmitted by the wheat curl mite (Aceria tosichella Keifer). Yield impacts from this complex are typically associated with the presence of volunteer wheat that emerges prior to harvest as a result of hail occurring during the heading stages of wheat in early summer. Historical literature on pre-harvest germination has been primarily focused on accelerating breeding programs; however, critical gaps in knowledge exist on ...
Effect Of Dung Beetles On Dung Decomposition And Nuntrient Cycling In A Nebraska Rangeland, 2016 University of Nebraska-Lincoln
Effect Of Dung Beetles On Dung Decomposition And Nuntrient Cycling In A Nebraska Rangeland, Kenneth Shay Evans
Theses, Dissertations, and Student Research in Agronomy and Horticulture
Management practice can have impacts on the abundance and frequency of dung beetle populations and nutrient cycling in grazing systems. Also, agriculture and livestock production land use is a considerable source of anthropogenic greenhouse gas (GHG) emissions, which are known to be one of the causes of global climate change. In this study, we evaluated the effect of dung beetle presence on the fluxes of greenhouse gasses (GHG’s) from dung pats in the semi-arid Sandhills region of Nebraska, by using closed chambers to measure the fluxes of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2 ...
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 ...
An Ecological Study Of The Kudzu Bug In East Tennessee: Life History, Seasonality, And Phenology, 2016 University of Tennessee, Knoxville
An Ecological Study Of The Kudzu Bug In East Tennessee: Life History, Seasonality, And Phenology, Kadie Elizabeth Britt
The kudzu bug, Megacopta cribraria (Hemiptera: Plataspidae), an invasive species from Asia, was first discovered in the United States in 2009 in Georgia. It has since spread to other states, including Tennessee, where it has spread rapidly to numerous counties in four years. Its common name, kudzu bug, implies a potential benefit to management of the invasive species kudzu; unfortunately, the kudzu bug has shown little impact on reducing growth of kudzu. The kudzu bug causes agricultural, urban, and health-related concerns in the United States. Soybean losses by kudzu bug have exceeded 20% in some areas of the southeastern United ...
Evaluation Of Total Mercury And Methylmercury Concentrations Of Terrestrial Invertebrates Along Lower East Fork Poplar Creek In Oak Ridge, Tennessee, 2016 University of Tennessee, Knoxville
Evaluation Of Total Mercury And Methylmercury Concentrations Of Terrestrial Invertebrates Along Lower East Fork Poplar Creek In Oak Ridge, Tennessee, Chelsea Lynden Standish
Mercury (Hg) and methylmercury (MeHg) are environmental concerns due to their abilities to cause neurological, reproductive, and other physical damage to wildlife. Lower East Fork Poplar Creek (LEFPC), stemming from the Y-12 National Security Complex, located in Oak Ridge, TN, has elevated concentrations of inorganic mercury, a majority of which was released between 1950 and 1963. This inorganic mercury has been, and is currently, converted to methylmercury. An ecological assessment in 2011 revealed high concentrations of methylmercury in riparian spiders along LEFPC. These results suggested the transfer of mercury from aquatic to terrestrial systems may be higher than previously expected ...
Corn Following Corn In 2008, 2016 Iowa State University
Corn Following Corn In 2008, Mahdi Al-Kaisi, Roger W. Elmore, Antonio P. Mallarino, Palle Pedersen, Alison E. Robertson, John E. Sawyer, Jon J. Tollefson
John E. Sawyer
Corn following corn is in rough shape in areas across Iowa. Many wonder what is happening. The crop’s condition in general is not normal for this time of year. For example, last Sunday the USDA rated this year’s Iowa corn crop as 54 percent in ‘Good’ to ‘Excellent’ condition and 15 percent is ‘Poor’ or ‘Very Poor.’ Last year 72 percent was rated ‘Good’ to ‘Excellent’ and 5 percent was in ‘Poor’ or ‘Very Poor’ condition during the same week. Average plant height as of Sunday was 24 inches compared to 40 inches at end of the same ...
Dichotomous Key To Pea Aphid (Acyrthosiphon Pisum) Apterous Parthenogenic Instars, Bates College Department Of Biology, Daisy Diamond, Daniel Levitis
SCARAB Data Repository
We provide a dichotomous key, with photographs and illustrations, for distinguishing between instars of the pea aphid (Acyrthosiphon pisum) in the developmental pathway leading to the apterous parthenogenetic adult. Lengths of body, antenna and cauda are provided for a sample of each instar.
Pheromone Lure And Trap Color Affects Bycatch In Agricultural Landscapes Of Utah, 2016 Utah State University
Pheromone Lure And Trap Color Affects Bycatch In Agricultural Landscapes Of Utah, Lori R. Spears, Chris Looney, Harold Ikerd, Jonathan B. Koch, Terry L. Griswold, James P. Strange, Ricardo Ramirez
Biology Faculty Publications
Aerial traps, using combinations of color and attractive lures, are a critical tool for detecting and managing insect pest populations. Yet, despite improvements in trap efficacy, collection of nontarget species (“bycatch”) plagues many insect pest surveys. Bycatch can influence survey effectiveness by reducing the available space for target species and increasing trap screening time, especially in areas where thousands of insects are captured as bycatch in a given season. Additionally, bycatch may negatively impact local nontarget insect populations, including beneficial predators and pollinators. Here, we tested the effect of pheromone lures on bycatch rates of Coccinellidae (Coleoptera), Apoidea (Hymenoptera), and ...
Insects Have The Capacity For Subjective Experience, 2016 Macquarie University, Australia
Insects Have The Capacity For Subjective Experience, Colin Klein, Andrew B. Barron
Animal Sentience: An Interdisciplinary Journal on Animal Feeling
To what degree are non-human animals conscious? We propose that the most meaningful way to approach this question is from the perspective of functional neurobiology. Here we focus on subjective experience, which is a basic awareness of the world without further reflection on that awareness. This is considered the most basic form of consciousness. Tellingly, this capacity is supported by the integrated midbrain and basal ganglia structures, which are among the oldest and most highly conserved brain systems in vertebrates. A reasonable inference is that the capacity for subjective experience is both widespread and evolutionarily old within the vertebrate lineage ...
Soybean Tolerance To Soybean Aphid (Aphis Glycines Matsumura) Herbivory, 2016 University of Nebraska-Lincoln
Soybean Tolerance To Soybean Aphid (Aphis Glycines Matsumura) Herbivory, Lia Marchi Werle
Dissertations and Student Research in Entomology
This research examined the soybean aphid tolerant soybean KS4202 and its possible role in soybean aphid management. Studies documented the stage at which the tolerance response was initially expressed, quantified the relationship between cumulative aphid-days (CADs) and yield loss, and determined economic injury levels (EILs) for the soybean aphid tolerant KS4202 soybean. At high aphid infestation levels, aphids negatively impacted yield for KS4202 and K03-4686 (susceptible) plants that were infested at V1 stage; however, KS4202 expressed tolerance to the soybean aphid at low aphid infestation levels. No significant differences in the yield parameters were detected for KS4202 when infested at ...