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Isolated Point Discharges Into Coastal Swashes As Nutrient Sources To Coastal Waters, Mary E. Olsen 2021 Coastal Carolina University

Isolated Point Discharges Into Coastal Swashes As Nutrient Sources To Coastal Waters, Mary E. Olsen

Honors Theses

Coastal water quality in the Grand Strand of South Carolina is directly influenced by human activities. Nutrient-rich runoff, stemming from numerous anthropogenic sources, finds its way into coastal waters through freshwater inputs often through tidal creeks, termed swashes. In order to better describe the amount of nutrient inputs into Singleton Swash and White Point Swash, we examine anthropogenic runoff from isolated identifiable point discharges and their nutrient concentrations. We report concentrations of dissolved inorganic nitrogen (DIN, as the sum of nitrate, nitrite and ammonium) and phosphate in discharge and creek water. We hypothesize that nutrient concentrations of isolated, minor point ...


Organic Matter Spatial And Temporal Patterns In Coastal Sands Of Long Bay, South Carolina, Kayla B. Christofferson 2021 Coastal Carolina University

Organic Matter Spatial And Temporal Patterns In Coastal Sands Of Long Bay, South Carolina, Kayla B. Christofferson

Honors Theses

Sandy coastlines serve crucial functions to coastal economies and coastal ecology alike. In the past, organic-poor sands were considered of lower importance than organic-rich muds. Recent studies showed that sands’ low organic matter concentrations are due to high biogeochemical cycling rates, driven by rapid physical exchange, but remain infrequently studied. I present time-series of sand mass-loss-on-ignition (LOI, an organic matter proxy) profiles from February 2017 onwards at multiple sites along Long Bay, South Carolina. LOI profiles exhibit subsurface maximum values, unlike the typical decrease with depth in muddy sediments. I hypothesize that organic matter distribution with depth is affected by ...


Taphonomy Of Late Jurassic (Tithonian) Morrison Formation Apatosaurus Sp. Vertebrae Found Associated With Teeth From Allosaurus Sp. And Ceratosaurus Sp., And Body Size Extrapolation From The Associated Theropod Teeth., Greg C. Agyan 2021 Utah State University

Taphonomy Of Late Jurassic (Tithonian) Morrison Formation Apatosaurus Sp. Vertebrae Found Associated With Teeth From Allosaurus Sp. And Ceratosaurus Sp., And Body Size Extrapolation From The Associated Theropod Teeth., Greg C. Agyan

All Graduate Plan B and other Reports

An Apatosaurus sp. locality from Dinosaur National Monument designated DNM-15 was excavated in 1985, and associated with two Allosaurus teeth and one Ceratosaurus tooth that were near one of the caudal vertebrae. The Ceratosaurus tooth was buried between an overlying rib and that same caudal vertebra. The caudal vertebrae of the DNM-15 Apatosaurus were intact and articulated, but the anterior skeleton was mostly absent, with a row of articulated sacral vertebrae in close association with a femur. Two other Allosaurus teeth were reported near the preserved ilium of the Apatosaurus, but they could not be located in the collections.

Field ...


Examining Summertime Melt And Temperatures In The North Pacific Cordillera, Ingalise Kindstedt 2021 University of Maine

Examining Summertime Melt And Temperatures In The North Pacific Cordillera, Ingalise Kindstedt

Electronic Theses and Dissertations

Temperature changes in glaciated regions are of immediate concern for estimates of future sea level rise. Alaska and the surrounding region contain over 40 mm of potential sea level rise in its many alpine glaciers, which are experiencing some of the highest rates of mass loss globally. However, records of both past and present temperatures in the region’s alpine sectors are sparse and limited in temporal and spatial extent. Here I examine the application of MODIS land surface temperatures and layers of refrozen melt in ice cores as temperature indicators in the St. Elias and Alaska Ranges. First, I ...


Soil Inhomogeneity Effects On Seismic Wind Noise, Bipin Koirala 2021 University of Mississippi

Soil Inhomogeneity Effects On Seismic Wind Noise, Bipin Koirala

Honors Theses

Wind causes local pressure fluctuations over the ground. The pressure waves couples with the ground and transmits into the ground as seismic waves. The seismic wave, in turn, causes ground motion. Naderyan et al. [9] developed a prediction of the ground displacements spectra from the measured ground properties and predicted pressure and shear stress at the ground surface. Naderyan modeled the ground as a linearly elastic half space bounded by an infinite plane on one side. The quasi-static model for predicting displacement components in the ground is effective for the vertical component of the displacement response, but the model significantly ...


The Biggest Snowball Fight In Earth History: Stratigraphy, Facies Analysis, And Geochronology Of The Pocatello Formation, Matthew W. Ellison 2021 Utah State University

The Biggest Snowball Fight In Earth History: Stratigraphy, Facies Analysis, And Geochronology Of The Pocatello Formation, Matthew W. Ellison

All Graduate Theses and Dissertations

The Snowball Earth Hypothesis details a time in Earth’s history (the Cryogenian period) where the entire planet was encapsulated by kilometer thick ice sheets for two, multi-million-year glaciations. The first, known as the Sturtian, lasted from 717 – 660 million years ago while the second, known as the Marinoan, lasted form approximately 650 – 635 million years ago. Snowball Earth was caused by a few processes that sort of built upon each other: Rodinia began splitting apart ~740 million years ago which allowed for increased rates of silicate weathering. High rates of silicate weathering resulted in CO2 drawdown which in ...


Three Centuries Of Vegetation Change In The William & Mary College Woods Reconstructed Using Phytoliths, Timothy Terlizzi 2021 William & Mary

Three Centuries Of Vegetation Change In The William & Mary College Woods Reconstructed Using Phytoliths, Timothy Terlizzi

Undergraduate Honors Theses

The College Woods, west of William & Mary’s campus, consists of ~900 acres of protected southern mixed hardwood forest. The woods surround Lake Matoaka, a former millpond established in ~1700. Despite the rich history of the area, little is known about how the dominant vegetative landcover has shifted over the last 300 years. This study set out to quantify the modern vegetation within the College Woods via the phytolith assemblages within the soil and identify shifts in the assemblages since the creation of Lake Matoaka and whether these changes are distinct from the vegetation that existed in the area before the lake. To accomplish this, I studied the composition and preservation of phytoliths – silica bodies generated within and between plant cells. The study focused on the two questions: do the modern phytolith assemblages in the soil of the College Woods reflect the vegetation present and can phytoliths within the sediments of Lake Matoaka be used to identify the dominant vegetative communities over the last ~300 years? I addressed these questions with three approaches: 1) Identify the primary phytolith producing taxa within the College Woods; 2) Identify the modern phytolith assemblages within the soil of the College Woods; 3) Identify the differences between phytolith assemblages from the lake sediment core samples. I found the following: 1) The production of phytoliths varies heavily between and within different common taxa of the College Woods, with species of oaks (Quercus spp.) unpredictably producing phytoliths and beeches (Fagus grandifolia) likely contributing the majority of dicot phytoliths; 2) The modern phytolith assemblages of the College Woods reflect a low phytolith producing environment, and the vegetative homogeneity is reflected in the phytolith record; 3) The ...


A Comparison Of The Localized Aviation Mos Program (Lamp) And Terminal Aerodrome Forecast (Taf) Accuracy For General Aviation, Douglas D. Boyd, Thomas A. Guinn 2021 Embry Riddle Aeronautical University

A Comparison Of The Localized Aviation Mos Program (Lamp) And Terminal Aerodrome Forecast (Taf) Accuracy For General Aviation, Douglas D. Boyd, Thomas A. Guinn

Journal of Aviation Technology and Engineering

Background. For general aviation (GA) pilots, operations in instrument meteorological conditions (IMC) carry an elevated risk of a fatal accident. As to whether a general aviation flight can be safely undertaken, aerodrome-specific forecasts (TAF, LAMP) provide guidance. Although LAMP forecasts are more common for GA-frequented aerodromes, nevertheless, the FAA recommends that for such aerodromes (and for which a TAF is not issued) the airman uses the TAF generated for the geographically closest airport for pre-flight weather evaluation. Herein, for non-TAF-issuing airports, the LAMP (sLAMP) predictive accuracy for visual (VFR) and instrument (IFR) flight rules flight category was determined.

Method. sLAMP ...


The Flowering Dynamics And Seedset Of Cichorium Intybus L. Cv. Puna, Yongfeng Han, Chengbin Tang, Mouqiong 2021 Guizhou Institute of Prataculture, China

The Flowering Dynamics And Seedset Of Cichorium Intybus L. Cv. Puna, Yongfeng Han, Chengbin Tang, Mouqiong

International Grassland Congress Proceedings

No abstract provided.


The Effects Of Time Of Application Of Nitrogen On Seed Yield, Efficiency Of N Fertilizer Use And Apparent N Fertilizer Recovery Of Russian Wildrye [Psathyrostachys Juncea (Fisch.) Nevski], Jianguo Han, Yunwen Wang, Shengquan Jiang, Bo Liu 2021 China Agricultural University, China

The Effects Of Time Of Application Of Nitrogen On Seed Yield, Efficiency Of N Fertilizer Use And Apparent N Fertilizer Recovery Of Russian Wildrye [Psathyrostachys Juncea (Fisch.) Nevski], Jianguo Han, Yunwen Wang, Shengquan Jiang, Bo Liu

International Grassland Congress Proceedings

No abstract provided.


Seed Yield Formation Of Festulolium And Lolium X Boucheanum Under Climatic Condition Of Latvia, Iveta Gutmane, Aleksandr Adamovich 2021 Latvia University of Agriculture, Latvia

Seed Yield Formation Of Festulolium And Lolium X Boucheanum Under Climatic Condition Of Latvia, Iveta Gutmane, Aleksandr Adamovich

International Grassland Congress Proceedings

No abstract provided.


Callus Induction And Plant Regeneration Of Poa Pratensis 'Nasu' Seeds Carried By China Recoverable Satellite Shijian‐8, Yinghua Guo, Lei Han, Guansheng Ju, Zhenyuan Sun 2021 Chinese Academy of Forestry, China

Callus Induction And Plant Regeneration Of Poa Pratensis 'Nasu' Seeds Carried By China Recoverable Satellite Shijian‐8, Yinghua Guo, Lei Han, Guansheng Ju, Zhenyuan Sun

International Grassland Congress Proceedings

No abstract provided.


Multi-Criteria Analysis For Mapping Susceptibility To Iron Formation Caves Development In The Gandarela Mountain Range (Mg), Southeast Brazil, Iraydes Tálita Nola, Luis Almeida Bacellar 2021 Federal University of Mato Grosso, Brasil

Multi-Criteria Analysis For Mapping Susceptibility To Iron Formation Caves Development In The Gandarela Mountain Range (Mg), Southeast Brazil, Iraydes Tálita Nola, Luis Almeida Bacellar

International Journal of Speleology

In tropical regions, abundant in iron-rich geological materials, caves that are genetically and geographically associated with exploitable mineral deposits may develop. These caves have speleological relevance and are environmentally and legally protected in Brazil. Thus, for better planning of exploitation and environmental licensing, it is necessary to study the genesis and development of the iron formation caves seeking to preserve them without impeding the advancement of mining. This subject is complex, rarely studied, and few are the knowledges on alternatives to predict the occurrence of these caves. This gap justifies the development of research and products capable of assisting decision-makers ...


Tannin Contents Of Sainfoin (Onobrycyhis Viciifolia Scop) Grown With Or Without Irrigation And Harvested At Different Growth Stages, Y. Wang, T. A. McAllister, S. N. Acharya, K. H. Ominski, D. O. Krause 2021 Agriculture and Agri‐Food Canada, Canada

Tannin Contents Of Sainfoin (Onobrycyhis Viciifolia Scop) Grown With Or Without Irrigation And Harvested At Different Growth Stages, Y. Wang, T. A. Mcallister, S. N. Acharya, K. H. Ominski, D. O. Krause

International Grassland Congress Proceedings

No abstract provided.


Implications Of Excess Nitrogen For Intake, Diet Choice And Production Of Sheep Fed Temperate Pastures, Garry C. Waghorn, G. P. Cosgrove 2021 DairyNZ, New Zealand

Implications Of Excess Nitrogen For Intake, Diet Choice And Production Of Sheep Fed Temperate Pastures, Garry C. Waghorn, G. P. Cosgrove

International Grassland Congress Proceedings

No abstract provided.


Sample Preparation Affects Non Structural Carbohydrates In Alfalfa, Gaëtan F. Tremblay, Annick Bertrand, Yves Castonguay, Gilles Bélanger, Sophie Pelletier, Réal Michaud 2021 Agriculture and Agri-Food Canada, Canada

Sample Preparation Affects Non Structural Carbohydrates In Alfalfa, Gaëtan F. Tremblay, Annick Bertrand, Yves Castonguay, Gilles Bélanger, Sophie Pelletier, Réal Michaud

International Grassland Congress Proceedings

No abstract provided.


Nitrogen Intake And Utilisation Pattern In The Digestive Tract Of Sheep Grazing Four Subtropical Foggages, Willem A. van Niekerk, Abubeker Hassen 2021 University of Pretoria, South Africa

Nitrogen Intake And Utilisation Pattern In The Digestive Tract Of Sheep Grazing Four Subtropical Foggages, Willem A. Van Niekerk, Abubeker Hassen

International Grassland Congress Proceedings

No abstract provided.


Effect Of Genotype And Cutting System On Agronomic And Feed Quality Characteristics Of Perennial Ryegrass (Lolium Perenne L.) Grown In Three Sites In Northern Germany, H. Salama, M. Lösche, Antje Herrmann, M. Gierus, Friedhelm Taube 2021 University of Kiel, Germany

Effect Of Genotype And Cutting System On Agronomic And Feed Quality Characteristics Of Perennial Ryegrass (Lolium Perenne L.) Grown In Three Sites In Northern Germany, H. Salama, M. Lösche, Antje Herrmann, M. Gierus, Friedhelm Taube

International Grassland Congress Proceedings

No abstract provided.


Fermentative Profile Of Soybean Silages Treated With Molasses And Microbial Inoculant, Odilon G. Pereira, L. O. Rosa, E. M. Santos 2021 Federal University of Viçosa, Brazil

Fermentative Profile Of Soybean Silages Treated With Molasses And Microbial Inoculant, Odilon G. Pereira, L. O. Rosa, E. M. Santos

International Grassland Congress Proceedings

No abstract provided.


Bioaccumulation And Partitioning Of Heavy Metals In Cicindelidia Haemorrhagica In Yellowstone National Park, Monica Gotschall 2021 University of Nebraska-Lincoln

Bioaccumulation And Partitioning Of Heavy Metals In Cicindelidia Haemorrhagica In Yellowstone National Park, Monica Gotschall

Dissertations & Theses in Natural Resources

The tiger beetle Cicindelidia haemorrhagica (Coleoptera: Cicindelidae) are widely distributed in Yellowstone National Park (YNP) and exclusively living on thermal areas. Heavy metals including arsenic, copper, lead, and selenium are present in these thermal springs, presenting an unique environment for C. haemorrhagica. Therefore, from 2018 – 2020 I sampled adult C. haemorrhagica from YNP and adult C. haemorrhagica from a known population in a salt flat in Idaho not associated with a hot spring and measured heavy metal concentrations. All populations of C. haemorrhagica bioaccumulated heavy metals. Cuticular waxes showed small concentrations of metals indicating that those metals are being excreted ...


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