Browsing Environmental & Conservation Sciences Doctoral Work by Issue Date
Now showing items 21-40 of 40
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Essays on Land Conversion, Crop Acreage Response, and Adoption of Conservation Practices: Evidence from the Dakota's
(North Dakota State University, 2017)This research is composed of three essays. It highlights the driving factors of land conversion and crop acreage response focusing on North Dakota agriculture and estimates the benefits of conservation land measures at ... -
Crop Acreage Response Modeling in North Dakota and Greater Midwest
(North Dakota State University, 2017)Our research consists of two papers. First paper focus on the trend of North Dakota (ND) crop acreage changes and include economic factors (expected prices of crops, input price, crop yield, revenue of crops) and climate ... -
Examination of the Period of Preparation for Breeding in Male and Female Songbirds
(North Dakota State University, 2017)In virtually all species, reproduction must be precisely timed to coordinate breeding and rearing of offspring with favorable conditions. It is imperative for individuals to time the highest energetic cost to themselves ... -
Processing Trade-offs in a Cellulosic Biorefinery
(North Dakota State University, 2017)Commercial scale cellulosic biorefineries face significant challenges to produce low-cost fermentable sugar from biomass. Biorefinery processing steps are interrelated and trade-offs between process parameters impact the ... -
Quasi-empirical and Spatio-Temporal Vulnerability Modeling of Environmental Risks Posed to a Watershed
(North Dakota State University, 2017)Water quality assessment is crucial in investigating impairment within agricultural watersheds. Seasonal and spatial variations on land can directly affect the adjoining riverine systems. Studies have revealed that ... -
Cell Entrapment for Mitigating Fouling in Membrane Bioreactors Treating Domestic Wastewater
(North Dakota State University, 2018)Membrane bioreactors (MBRs) have been a process of choice for wastewater treatment and reuse because of several advantages over conventional process (activated sludge) including superior quality effluent, less biomass ... -
Sperm Telomere Dynamics: Natural Variation and Sensitivity to Environmental Influences in House Sparrows (Passer domesticus)
(North Dakota State University, 2018)Understanding the mechanisms that contribute to variation in lifespan is of central importance to diverse fields including life history theory. Although the causes of aging are not fully understood, telomere dynamics (length ... -
Determining Greenhouse Gas Emissions and Nitrogen Dynamics of Solid Beef Manure Applied to Fargo-Clay Soil of the Red River Valley
(North Dakota State University, 2018)Land application of solid beef manure may prompt greenhouse gases (GHGs) - nitrous oxide (N2O), methane (CH4), and carbon dioxide (CO2) emissions. Nitrogen (N) in manure can also be lost through ammonia volatilization ... -
Reproductive Timing in a Changing World: Understanding Mechanisms and Costs Associated With Reproductive Timing Decisions
(North Dakota State University, 2018)Organisms in temperate zones time reproduction to occur when conditions are optimal for raising offspring. However, individuals of many taxa vary in precise timing of breeding. The mechanisms underlying the existing variation ... -
Chironomids Then and Now: Climate Change Effects on a Tundra Food Web in the Alaskan Arctic
(North Dakota State University, 2019)Although climate change is a global phenomenon, the Arctic is warming faster than any other region on earth. These climatic changes have driven rapid regional changes over the past half-century in both the physical landscape ... -
The Effect of Zinc Oxide Nanoparticles on Plants, and on Host-Pathogen Interactions
(North Dakota State University, 2019)Zinc oxide nanoparticles (ZnO NPs) are a type of engineered nanomaterial that is currently being explored for use in different aspects of agriculture. So far, research on this area is limited to evaluating the phenotypical ... -
Nitrogen Mineralization Dynamics of Post Harvest Crop Residue in No-Till Systems
(North Dakota State University, 2020)In North Dakota, adoption of conservation tillage practices has resulted in an accumulation of crop residue remaining on the soil surface. North Dakota producers receive a nitrogen credit for long-term no-till but due to ... -
Taphonomic, Taxonomic, and Behavioral Diversity of Wormworld Fossil Assemblages from Ediacaran Units of the Western United States
(North Dakota State University, 2020)The western United States Deep Spring and Wood Canyon formations contain a variety of late Ediacaran fossils, representing the enigmatic Ediacara biota and a metazoan worm-like fauna. The latter, dubbed “Wormworld”, is ... -
Aquatic Macroinvertebrate Response to Shifts in Hydroclimatic Variability and Ecohydrological Conditions in Prairie-Pothole Wetlands: Implications for Biodiversity Conservation
(North Dakota State University, 2020)Ecosystem degradation and subsequent biodiversity loss has plagued freshwater environments globally. Wetland ecosystems, such as the depressional wetlands found in the Prairie Pothole Region of North America, have been ... -
Holocene Postglacial Fluvial Processes and Landforms in Low Relief Landscapes
(North Dakota State University, 2020)Postglacial rivers are part of the relatively young low-relief landscape system left behind by glaciers. Over time, postglacial rivers are susceptible to both minor and major channel planform changes as the Earth and its ... -
Graphene Oxide Supported Metal Oxide Nanohybrids for Aqueous Arsenic Removal
(North Dakota State University, 2021)Arsenic contamination of drinking water is a major public health concern affecting more than 200 million people globally. Iron(Fe)-based adsorbents though promoted for aqueous arsenic removal because of their low cost and ... -
Freshwater Cyanotoxin Mixtures in Recurring Cyanobacterial Blooms in Voyageurs National Park
(North Dakota State University, 2021)Algal and cyanobacterial blooms can foul water systems, inhibit recreation, and produce cyanotoxins, which can be toxic to humans, domestic animals, and wildlife. Blooms that recur yearly present a special challenge, in ... -
Investigation of Organic Nitrogen Activity in Biological Processes of Water Resource Recovery Facilities
(North Dakota State University, 2021)The decrease in effluent inorganic nitrogen concentration in water resource recovery facilities (WRRFs) has been effectively achieved by including or finetuning the biological nutrient removal process. However, soluble ... -
Evolutionary and Ecological Processes in Conservation and Preservation of Plant Adaptive Potential
(North Dakota State University, 2022)Anthropogenetic disturbances, such as habitat loss and fragmentation, overexploitation, and climate change have diminished population sizes of many species, increasing risks of population extirpation or species extinction. ... -
An Agent-Based Model for the Water Allocation and Management of Hydraulic Fracturing
(North Dakota State University, 2022)An agent-based model (ABM) is developed to simulate the impacts on streamflow and groundwater levels by the dramatic increase of hydraulic fracturing (HF) water use. To develop the agent-based model, institution theory is ...