Digital Commons Network^™

A Gradient Of Pollination Specialization In Three Species Of Bolivian Centropogon, Laura P. Lagomarsino, Nathan Muchhala

Faculty Publications

© 2019 Botanical Society of America Premise: Closely related plant species with overlapping ranges often experience competition for pollination services. Such competition can select for divergence in floral traits that attract pollinators or determine pollen placement. While most species in Centropogon (Campanulaceae: Lobelioideae) have flowers that suggest adaptation to bat or hummingbird pollination, actual pollinators are rarely documented, and a few species have a mix of traits from both pollination syndromes. We studied the pollination biology of a “mixed-syndrome” species and its co-occurring congeners to examine the relationship between floral traits and visitation patterns for Centropogon. Methods: Fieldwork at two …

A Comparison Of Hominin Teeth From Lincoln Cave, Sterkfontein L/63, And The Dinaledi Chamber, South Africa, Juliet K. Brophy, Joel Irish, Steve E. Churchill, Darryl J. De Ruiter, John Hawks, Lee R. Berger

Faculty Publications

Prior to the recovery of Homo naledi from the Dinaledi Chamber of the Rising Star Cave system, the Middle Pleistocene fossil record in Africa was particularly sparse. With the large sample size now available from Dinaledi, the opportunity exists to reassess taxonomically ambiguous teeth unearthed at the nearby site of Sterkfontein. Teeth recovered from Lincoln Cave South and area L/63 at Sterkfontein have been considered ‘most probably Homo ergaster’ and ‘perhaps Archaic Homo sapiens’, respectively. Given the similarities shared between Lincoln Cave, area L/63, and the Dinaledi Chamber with regard to climatic/geologic depositional context and age, two teeth from the …

Ancient Maya Obsidian Trade: Frenchman’S Cay, Belize, Emily Cook

Honors Capstones

No abstract provided.

Rules Of Distributary Engagement: Cultural Adaptation And Digital Enhancement Of Hydro-Ecological Decision-Making In The Mekong Delta, Việt Nam, Clare-Mai H. Nguyen

LSU Master's Theses

Focused on current initiatives for climate resilience, this paper explores a culturally adaptive approach to participatory planning in the Vietnamese Mekong Delta. It details key engagement components to accompany the use of Tangible Landscape, an interactive, data-driven modeling platform, in a series of workshops sponsored by the World Bank. Innovations like Tangible Landscape hold the potential to significantly increase stakeholders’ accessibility to scientific data and scenario models. To what extent do the specificity of place and culture determine the efficacy of these tools in democratizing decision-making?

This paper delves into Việt Nam’s socioeconomic development through Mekong agriculture, as well as …

Assessment Of Barrier Island Restoration Planning And Management In The Terrebonne Basin, Louisiana, Sean Russell Williams

LSU Master's Theses

Louisiana holds the majority of the contiguous United States’ coastal wetlands by area, providing significant benefits to users in the form of ecosystem services. Climate change, relative sea level rise, and coastal sediment budget deficits among other anthropogenic processes impact the resilience and sustainability of Louisiana’s coastal systems. Since the implementation of the Coastal Wetland Planning, Protection and Restoration Act (CWPPRA) to restore coastal wetlands in the United States, multiple barrier island restoration projects have taken place in the greater Terrebonne Basin. Amassing a catalog of case studies elucidates the social, ecological, and economic frameworks behind barrier island restoration and …

The Corridor Des Arts, Kade M. Jones

LSU Master's Theses

Arnaudville is a small rural town in south central Louisiana with a population of 1200. In 2010, the National Endowment of the Arts (NEA) named Arnaudville as one of fourteen cities that were classified as a successful case study of “Creative Placemaking.” The NEA defines creative placemaking as community partnerships that use arts and culture to shape the social, environmental, and economic identity of a place. The NUNU Arts and Culture Collective, a Louisiana Cajun French non-profit arts organization centered in Arnaudville, is the main catalyst of this effort.

Members of NUNU have identified five other rural towns within close …

La Poétique Du Dépassement Dans Les Littératures D'Expression Française Des Antilles Et De L'Océan Indien, Jeanne Jegousso

LSU Doctoral Dissertations

This project argues for a new critical approach to contemporary Caribbean and Oceanic literatures through a poetics of dépassement. A key concept to understanding the work of the Martinican theorist and author Édouard Glissant as a whole, dépassement generally designates, first, a dialectical process in literature that Glissant uses to analyze texts in order to portray a global and universal poetical knowledge. Secondly, dépassementimplies transcending literary genres and historical approaches to the point that formal and conventional constraints are no longer pertinent. Through a study dedicated to the original interpretations of literature in Glissant’s early work (1953-1969), which …

Louisiana Agriculture Spring, 2019

Louisiana Agriculture

No abstract provided.

Spring 2019 Catalog, Lsu Press

LSU Press Seasonal Catalogs

No abstract provided.

Salt Marsh Restoration In Louisiana: An Analysis Of Litter Decomposition, Joseph Winston

Honors Capstones

No abstract provided.

Differentiation Of Surface Water And Groundwater In A Karst System Using Anthropogenic Signatures, Joe Honings

Faculty Publications

Surface water-groundwater interaction within a karstic system enhances contaminant transport, making karst aquifers susceptible to anthropogenic practices. Contaminated waters related to agricultural and animal husbandry in northwestern Illinois (USA) prompted this investigation. Six streams and five springs were sampled for 16 parameters to assess anthropogenic influences. Statistical analyses revealed differences in 13 of 16 parameters between the stream and spring waters. Rock-water interaction was identified as the dominant mechanism defining the chemistry for both waters, which were classified as Ca-Mg HCO3. Elevated nitrate as nitrogen (NO3-N), chloride (Cl-), sodium, and potassium concentrations indicate that human activities have influenced the quality …

Demystifying Jadeite: An Underwater Maya Discovery At Ek Way Nal, Belize, Heather Mckillop, George Harlow, April Sievert, C. Wayne Smith, Michael C. Wiemann

Faculty Publications

Jadeite artefacts at Maya sites are normally associated with ritual and ceremonial locations, with high-quality jadeite reserved for elite objects. The discovery of a jadeite gouge with a wooden handle at a Classic Maya salt-working site submerged by sea-level rise - Ek Way Nal, Belize - is therefore unexpected and provides new information about the utilitarian use of this stone. The extremely high quality of this jadeite tool is particularly surprising, offering new insight into the Classic Maya exchange systems and the role of salt makers such as those based at Ek Way Nal.

Risk Factors Associated With Juvenile Delinquency, Karly A. Kyzar

Honors Capstones

No abstract provided.

Industriflo Business Plan, Charles Soileau

Honors Capstones

No abstract provided.

The Social Logic Of Space In Early Horizon Peru: 3d Reconstructions Of Residential Compounds At Caylán, Nepeña Valley, Ashleigh V. Passafume

Honors Capstones

No abstract provided.

"La Llorona": Evolución, Ideología Y Uso En El Mundo Hispano, Raquel Sáenz-Llano

LSU Master's Theses

This thesis studies the evolution, ideology and use of the myth of La Llorona through time in the Hispanic World. Considering this myth as one of the most known traditional narratives of the American continent, I begin by providing visual, ethnohistorical and ethnographical insights of weeping in Mesoamerica and South America and the specific mention of a weeping woman in some Spanish chronicles to say how western values were stablished in “the new continent” through this legend. I suggest that during the postcolonialism the legend did not tell anymore about a mother that cries and search a place for their …

Effects Of Oil And Gas Development On Waterfowl Nesting Ecology In The Bakken Formation Of North Dakota, Cassandra G. Skaggs

LSU Master's Theses

The Prairie Pothole Region (PPR) is one of the most important areas on the continent for grassland-nesting birds. Thirty percent of the PPR overlaps the Bakken shale formation where rapidly accelerating oil and gas development has the potential to impact millions of breeding waterfowl. While oil and gas development has negatively affected other ground-nesting birds such as sagebrush passerines and Greater Sage-Grouse (Centrocercus urophasianus) in Wyoming, the potential impact on breeding waterfowl in the PPR is unknown. In addition, the PPR landscape is already heavily fragmented by agriculture, and increasing land conversion and disturbance from petroleum extraction may further …

Sacroiliac Joint Fusion In Nulliparous And Parous Females And Males, Meredith Aulds

LSU Master's Theses

Previous research shows that sacroiliac (SI) joint fusion is age and sex dependent. Older individuals—specifically starting in the fifth or sixth decade of life—are more likely to develop SI fusion. Females have a lower frequency of SI joint fusion than males, perhaps due to pregnancy or parturition. This study examines the relationship between SI joint fusion with both sex and parity status in females. The issue is whether the prevalence of SI fusion in nulliparous females is more similar to that of males or parous females. The sample consists of 46 nulliparous females, 119 parous females, and 158 males from …

"Sir, I Cannot Entertain You": Tour Guides As Agents Of Truth And Transformation At The Whitney Plantation, Sarah Latham

LSU Master's Theses

According to the Louisiana office of tourism, one out of every nine workers in Louisiana relies on the state’s tourism industry for their wages, of which plantation tourism is a growing part (2016). This research examines the experiences of tour guides at the Whitney Plantation. How do tourists’ expectations and concepts of heritage affect the way tour guides do their jobs? What are tour guides’ experiences of being objectified by visitors? How are tour guides’ experiences shaped by race and racialized expectation? Specifically, I examined tour guides at The Whitney Plantation Museum in Wallace, Louisiana. This project drew on participant-observation …

A Retrospective Analysis And Method Validation Of Postmortem Interval Estimation In Louisiana, Sophia Reck

LSU Master's Theses

Forensic anthropologists are often called upon to assess the postmortem interval (PMI; i.e. time since death) of remains in varying states of decomposition and skeletonization. These assessments rely on familiarity with general taphonomic sequences and processes, in addition to experience with how these processes present in local environments and conditions. Assessment using such qualitative methods is a subjective process. Therefore, some researchers have developed formulae whose purpose is to estimate PMI in an objective format. In these instances, the resultant PMI estimation formulae were developed using local data and therefore have the potential for local applicability. Additionally, for some regions, …

Twitter Use In Hurricane Isaac And Its Implications To Disaster Resilience, Kejin Wang

LSU Master's Theses

Disaster Resilience is the capacity of a community to ‘bounce back’ from disastrous events. Most studies rely on traditional data such as census data to study community resilience. With the advent of social media era, the new data source gives us an opportunity to explore the application of Twitter data to better understand disaster resilience. A research question is: does Twitter use correlate with disaster resilience? In other words, will communities with more Twitter users be more resilient to disasters, presumably because they are more likely to be better informed? The underlying issue is that if there are social and …

Estimating Sex Using The Human Mandibular Canine, Brittney Blevins

LSU Master's Theses

Sexual dimorphism can be quantified in human mandibular canines; therefore, these teeth can be used to estimate sex of skeletonized individuals. This study complements and expands previous research by comparing mesiodistal diameter (MD), buccolingual diameter (BL), and crown area of human mandibular canines. Measurements were taken from a sample of skeletal individuals from the Terry Collection (n=677), the Maxwell Museum of Anthropology Skeletal Collection (n=86), and a random sample of dental casts from the James K. Economides Orthodontic Case File (JKE, n=624), for a total study sample of 741 males and 677 females. Both left and right canines were measured, …

Using Entheseal Length To Infer Locomotor Type, Antonio R. Otero

LSU Master's Theses

An enthesis is a marking (tuberosity or impression) on bone where a muscle or tendon attaches and it can be influenced by age, sex, physical activity, and muscle size. This study ascertains whether entheses, long bones, and their respective ratios can be used as an indicator for mode of locomotion in four primate species: Ateles geoffroyi (Geoffroy’s spider monkey), Colobus guereza (mantled guereza), Hylobates lar (lar gibbon), and Macaca mulatta (rhesus monkey). Seven entheses on four long bones were chosen based on importance of the muscle in relation to specific locomotor types, use in other studies, and …

Monumental Discourse: Elite And Grassroots Disputes Over White Supremacist Monuments In New Orleans, Jude Bumgardner

LSU Master's Theses

This thesis explores elite and grassroots discourse concerning disputes over monument removal in New Orleans, Louisiana. By means of participant observation, narrative ethnography, and critical discourse analysis, I ground this study of political and academic arguments about Confederate monuments in the context of grassroots concerns regarding white supremacist symbols to inquire about how these divergent discourses relate to inequality in New Orleans. Ultimately, I argue that what is most at stake in each case studied here is speakers’ control over the “public mind” via their control over dominant narratives (van Dijk 1993a, 44-45). In order to preserve their power, each …

Flood Resilience Assessment Of New Orleans After Hurricane Katrina Based On Thermal And Vegetation Index Image Time Series, Yirui Deng

LSU Master's Theses

Resilience is a concept with increasing importance in modern risk management because of its role in reducing risks of unpreventable disasters. Previous resilience assessment studies often require extensive surveys of various social, economic, and psychological data or incorporate remote sensing data as one of the complicated physical and social parameters for assessment models. Limited data accessibility to such data due to funding, time, and labor intensity is a major challenge for their wider applications. Therefore, this study proposes the hypothesis that the overall resilience of an urban area to disturbances of natural disasters can be reflected through the time series …

Climatology, Variability, And Return Periods Of Tropical Cyclone Strikes In The Northeastern And Central Pacific Basins, Nicholas S. Grondin

LSU Master's Theses

Tropical cyclones (TCs) are among the most destructive meteorological phenomena and impact the lives of people who reside along the coast. The American Pacific Coastline borders the second most active TC development region in the world, the northeastern Pacific (NE Pac) basin. This region, along with the Central Pacific (C Pac)-bordering Hawaii is home to a growing population and cities engaged in a variety of economic activities, most prominently agriculture, fishing, and tourism. This study analyzes fifty-two (1966-2017) years of NE Pac and C Pac TCs through applying track data from the National Hurricane Center’s HURDAT2 and a TC size …

Surface Gravity Waves In The Gulf Of Mexico And Their Role In Ocean-Atmosphere Coupling, Ehsan Abolfazli

LSU Master's Theses

This study provides an overview of the surface gravity wave dynamics in the Gulf of Mexico (GoM) using numerical simulations. The focus is on the effects of ocean currents on waves, and the geographic distribution of a set of wave statistics and parameters related to the role of waves on both sides of the ocean-atmosphere interface. Simulations are performed using the Simulating WAves Nearshore (SWAN) model with and without coupling with the Regional Ocean Modeling System (ROMS) model within the Coupled Ocean Atmosphere Wave Sediment Transport (COAWST) framework. In the GoM, currents alter the climatological significant wave heights (H …

Fragments And Flânerie: Modernity, Cosmopolitanism, And The Art Of Wandering, Charla Allyn Hughes

LSU Doctoral Dissertations

This dissertation argues that wandering, whether across cities (flânerie) or across geographic regions and countries (travel), is a process of not only finding meaning but also one of confronting alienation and dislocation, conditions of the fragmentariness of modern life, which is signified by transnationalism, media, technology, and consumerism. This examination of flânerie, travel, and cosmopolitanism investigates three women writers’ representations of navigating an alienating, fragmented world—or, more simply, of the search for a sense of home and/or belonging. Transatlantic writers Mary McCarthy, Elizabeth Bishop, and Zadie Smith not only consider specific places and suspended in-betweens but also …

Use Of A Behavioral Health Framework To Assess Perceptions Of Hurricane Evacuation Support Services In New Orleans, Louisiana, Aubry Kyle

LSU Doctoral Dissertations

This dissertation presents research conducted during the hurricane seasons of 2017 and 2018 in New Orleans, Louisiana. The research’s purpose was to assess citizen perceptions of evacuation support services offered during mandatory evacuation events. A prospective quantitative survey and qualitative, open-ended, semi-structured interview assessed perceptions. Both research methods were designed and assessed using the constructs of the Health Belief Model, a public health model created to assess perceived barriers, benefits, risks, severity, self-efficacy, and cues to action regarding health programming. Quantitative research yielded 211 surveys, representing opinions of New Orleans residents within 1-km Euclidian distance of an evacuation pick-up marker. …

Vulnerability Of Industrial Facilities In The Lower Mississippi River Industrial Corridor To Relative Sea Level Rise And Tropical Cyclone Storm Surge, Joseph Blake Harris

LSU Doctoral Dissertations

Relative sea level rise (RSLR) and tropical cyclone-induced storm surge are major threats to the Lower Mississippi River Industrial Corridor (LMRIC) which has approximately 120 industrial complexes located within the corridor. Spatial interpolation methods were applied to the 2004 National Oceanic and Atmospheric published Technical Report #50 subsidence dataset and cross-validation techniques were used to determine the accuracy of each method. Digital elevation models (DEMs) were created for the years 2025, 2050, and 2075, based on these predictive surface of subsidence rates. Future DEMs were utilized to model RSLR and determine the extent of storm surge on the LMRIC by …