Browsing Environmental & Conservation Sciences by Title
Now showing items 88-101 of 101
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Relationships Between Winter Social Dominance Hierarchies and Immune Function in the Black-Capped Chickadee
(North Dakota State University, 2016)social species, dominance rank has implications for an individual’s health and fitness. Dominant individuals often receive greater access to resources, protection from predators, higher quality t ... -
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 ... -
Seasonality of Some Arctic Alaskan Chironomids
(North Dakota State University, 2016)Arthropods, especially dipteran insects in the family Chironomidae (non-biting midges), are a primary prey resource for many vertebrate species on Alaska’s Arctic Coastal Plain. Midge-producing ponds on the ACP are ... -
Sedimentology and Stratigraphy of Miocene-Age Glacial Deposits, Friis Hills, Antarctica
(North Dakota State University, 2011)The Friis Hills is an isolated plateau standing as much as 600 m above surrounding topography in the McMurdo Dry Valleys region or Antarctica.Preserved on the plateau surface is a sequence of early to middle Miocene-aged ... -
Selection for Low Calcium Tolerance in Brassica rapa
(North Dakota State University, 2018)Ecosystems across a landscape can vary in their selection pressures and therefore can vary in the species that are able to survive there. Selection pressures applied on a species found in multiple ecosystems may lead to ... -
Soil Warming and Drying and the Consquence to Crop Yields among Conservation Tillage Practices in Frigid Corn-Soybean Fields
(North Dakota State University, 2017)Concerns over delayed soil warming and drying have hindered adoption of conservation tillage practices in frigid environments. Our objectives were to evaluate the effects of chisel plow (CP), vertical tillage (VT), strip ... -
Souris River Dissolved Oxygen Study in Support of Total Maximum Daily Load Development
(North Dakota State University, 2010)The Souris River, a slow moving praire river, originates in the Canadian province of Saskatchewan. The Souris River enters into the United States near Sherwood, North Dakota. The upper portion of the Souris River, from ... -
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 ... -
Synergistic Bioactive Enhancement of Phytochemical-Linked Food Safety Relevant and Health Protective Benefits of Select Plant-Based Foods and By-Products
(North Dakota State University, 2022)Under-utilized, ethnic, or traditional plant-based foods, food ingredients, or processed plant by-products have dual functional food safety and health protective benefits due to their rich phytochemical profile. Pre- and ... -
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 ... -
Trace Element Distribution in Soils of The Pembina Escarpment, North Dakota
(North Dakota State University, 2010)Association of element concentrations for soils of northeastern North Dakota formed from different sources of parent materials were determined based on geochemical data. These soils overlie the Cretaceous Pierre Formation ... -
Understanding the Relationships between Plant Communities, Fish Communities, and Sediment Chemistry in Pristine Shallow Lake Wetlands, Red Lake, MN
(North Dakota State University, 2016)Over 90% wetland loss in many areas of the United States has triggered extreme concern for declining biodiversity and loss of ecosystem services. Studies assessing ecological characteristics of unaltered wetlands are ... -
Use of Biopolymer Entrapped Sulfate Reducing Bacteria and Metal Nanoparticles for Effective Aqueous Sulfate Removal
(North Dakota State University, 2013)Sulfate reducing bacteria (SRB) isolated from activated sludge were used to investigate sulfate removal from aqueous solution using calcium alginate entrapped SRB in batch studies with ethanol and lactose as the carbon ... -
Using Seed Source Diversity and Species Distribution Modeling for Evaluating Grassland Restoration Success and Suitability
(North Dakota State University, 2022)Seed sourcing for restoration often uses local populations presumed adapted to local environments. This may not be effective under changing climates. Thus, different seed sourcing strategies need testing including multi-source ...