Digital Commons Network^™

Testosterone Amplifies The Negative Valence Of An Agonistic Gestural Display By Exploiting Receiver Perceptual Bias, Nigel K. Anderson, Martina Grabner, Lisa A. Mangiamele, Doris Preininger, Matthew J. Fuxjager

Biological Sciences: Faculty Publications

Many animals communicate by performing elaborate displays that are incredibly extravagant and wildly bizarre. So, how do these displays evolve? One idea is that innate sensory biases arbitrarily favour the emergence of certain display traits over others, leading to the design of an unusual display. Here, we study how physiological factors associated with signal production influence this process, a topic that has received almost no attention. We focus on a tropical frog, whose males compete for access to females by performing an elaborate waving display. Our results show that sex hormones like testosterone regulate specific display gestures that exploit a …

Exploring A Novel Substrate-Borne Vibratory Signal In The Wolf Spider Schizocosa Floridana, Malcolm F. Rosenthal, Eileen Hebets, Rowan H. Mcginley, Cody Raiza, James Starrett, Lin Yan, Damian O. Elias

Eileen Hebets Publications

Animals communicate using a diversity of signals produced by a wide array of physical structures. Determining how a signal is produced provides key insights into signal evolution. Here, we examine a complex vibratory mating display produced by male Schizocosa floridana wolf spiders. This display contains three discrete substrate-borne acoustic components (known as “thumps”, “taps”, and “chirps”), each of which is anecdotally associated with the movement of a different body part (the pedipalps, legs, and abdomen respectively). In order to determine the method of production, we employ a combination of high-speed video/audio recordings and SEM imaging of possible sound-producing structures. Previous …

Hind Wing Eyespots Of Brassolini Butterflies (Lepidoptera, Nymphalidae): Evolutionary Diversification And Functions In Anti-Predator Defense And Mating Behavior, Logan Crees

LSU New Orleans Theses and Dissertations

Ventral hind wing eyespots are prominent pattern elements in Brassolini butterflies, likely functioning in predator-prey interactions and reproductive activities. Caligo and Opsiphanes differ in male mate-seeking behaviors and it has been suggested that Caligo females use the male cua1 eyespot as a mate-locating cue, but Opsiphanes females do not seem to do so. We predict Caligo males should have larger eyespots than congeneric females, but the sexes would not differ in eyespot size in Opsiphanes. Our analyses supported both these predictions. Displacing the eyespot to the center of the wing makes eyespots more conspicuous, we asked if eyespot position …

Sanguinus Oedipus In A Habitat Of Brotherly Love, Haley Atkinson

The Pegasus Review: UCF Undergraduate Research Journal

This observational study analyzes the social dynamic and agonistic behavior between the two youngest males in a captive troupe of cotton-top tamarins, Sanguinus oedipus, found at the Central Florida Zoo and Botanical Gardens located in Sanford, Florida. The troupe consists of a breeding pair, two sets of twins, and a set of triplets– totaling nine individuals. The study focuses on the second-youngest and youngest males in the troupe and how they interact with each other. S. oedipus possess certain social and communication behaviors. The main behaviors observed in this study are vocalizations and movements indicating aggression between the two …

The Reflection Of Effective Interactive Graphic Design, George Nader Naguib Morcos

BAU Journal - Creative Sustainable Development

Graphic design has a rich history as a creative practice, which connects different design elements to build effective message. It combines typography and visual elements like Illustrations or photos to create a visual message, graphic design is considered as an important branch in the modern communication technology. Graphic design nowadays has becoming more advanced and moves from the static phase to the dynamic phase which includes unlimited technologies like virtual reality, 3D motion and interactivity, which becomes one of the important factors that affects the successes of the visual communication or the message that has to be sent via the …

The Effects Of Leaf Litter On Predation Cue Response In Gray Tree Frog Tadpoles, Hyla Versicolor, Dani Mccauley

Undergraduate Distinction Papers

Plant litter is an important resource for consumers, particularly in freshwater environments where it influences the development processes of larval amphibians. Leaf litter alters the physiochemical environment by lowering dissolved oxygen while increasing nitrogen, tannin, and phenolic acid levels. Many anuran species show plastic responses to the threat of predation. This is communicated through a kairomone when a tadpole is consumed, allowing surviving tadpoles to alter their behavior and morphology to evade predators. The purpose of this study was to analyze the interactive effects of leaf litter and predation on gray treefrog tadpoles (Hyla versicolor). The chemical output of the …

Substrate-Borne Vibrational Communication In Veiled Chameleons (Chamaeleo Calyptratus) During Courtship, Breeding, And Territoriality, Lauren Kappel

Masters Theses & Specialist Projects

Substrate-borne vibrations, or biotremors, are utilized by vertebrates found in unique environments because biotremors are an effective way to transmit signals through dense media. Previous studies have shown that veiled chameleons (Chamaeleo calyptratus) are able to produce biotremors via specialized neck muscles. I hypothesized that during courtship and/or breeding, the veiled chameleon, a tree-dwelling species, would communicate with biotremors through branches. Additionally, I hypothesized that female call characteristics would differ between reproductive condition (i.e., receptive and non-receptive), while male call characteristics would differ between behavioral contexts (i.e., territorial vs. courtship). Chameleons were paired (one male, one female) and placed on …

The Unmasking Of Aggressive Chemosignaling Via The Crayfish Model: An In-Depth Urinalysis Using Hplc, Kristi Ruvina

Masters Theses

It is well established in the scientific community that decapod crustaceans secrete molecules via nephropores to communicate with each other. These molecules have been shown by numerous conducted studies to affect the animal behavior, especially aggression. However, studies in decapods crustaceans have yet to elucidate the chemical nature of aggressive chemosignals during agonistic interactions. The main goal of this study was to identify the chemical profile of crayfish urine via HPLC during two conditions: when stressed and while fighting. The urine analysis of stressed crayfish showed that uric acid, guanosine, L-tryptophan, and N-acetylserotonin were present in the samples, minutes after …

Social Referencing In The Domestic Horse, Anne Schrimpf, Marie-Sophie Single, Christian Nawroth

Recognition Collection

Dogs and cats use human emotional information directed to an unfamiliar situation to guide their behavior, known as social referencing. It is not clear whether other domestic species show similar socio-cognitive abilities in interacting with humans. We investigated whether horses (n = 46) use human emotional information to adjust their behavior to a novel object and whether the behavior of horses differed depending on breed type. Horses were randomly assigned to one of two groups: an experimenter positioned in the middle of a test arena directed gaze and voice towards the novel object with either (a) a positive or (b) …

Impact Of Bim On Building Design Quality, Khaled Sadek, Ibtihal El-Bastawissi, Rokia Raslan, Samer Sayary

BAU Journal - Creative Sustainable Development

During last decades, the aim of new technologies was to develop new information systems to automate manual processes. Large-scale projects in the field of construction industry need a different approach to organize and analyze data creating a database without any duplication or redundancy. Building Information Modeling (BIM) is a teamwork process using advanced technologies to generate data modeling. Based on a literature review, the present research proposes a set of hypotheses that links BIM implementation with the enhancement of information sharing capability (ISC) and collaborative decision capability (CDC) in the construction sector of the building industry. Consequently, it relates the …

Transformative Education In Agroecology: Student, Teacher, And Client Involvement In Co-Learning, Charles A. Francis, Anna Marie Nicolaysen, Geir Lieblein, Tor Arvid Breland

Department of Agronomy and Horticulture: Faculty Publications

Educational methods have evolved rapidly in agroecology, which is a complex and holistic field without a long history or the formal tradition of any single academic discipline. Definitions of agroecology have evolved from its initial conception as a marriage of agriculture with ecology, to an aggregation of different paths including science, practices, and movements, and recently as a broad appreciation of the ecology of food systems. In contrast with traditional courses that begin with a history of the discipline and review the contributions of early leaders, we have embraced phenomenology to firmly establish roots in students’ learning through their experiences …

Scaling And Ecological Relationships In The Visual Ecology Of Sharks, Brianna Hall

College of Graduate Studies: Theses & Dissertations

Adaptations of visual systems, such as acuity, sensitivity, and eye size can be used to infer the relative importance of vision to an organism. The high metabolic cost of visual system development and maintenance suggests that large relative eye size (as it relates to body length) may have a significant ecological or evolutionary role. Elasmobranchs are morphologically diverse and inhabit a wide range of marine and freshwater niches. As energetic and ecological demands shift over time, several species occupy different predatory niches across their lifetime, yielding a large array of visual habitats. Additionally, eye size changes with body length allometrically, …

Transcriptomic Data Support A Nocturnal Bottleneck In The Ancestor Of Gecko Lizards, Brendan J. Pinto, Stuart V. Nielsen, Tony Gamble

Biological Sciences Faculty Research and Publications

Gecko lizards are a species-rich clade of primarily-nocturnal squamate reptiles. In geckos, adaptations to nocturnality have dramatically reshaped the eye. Perhaps the most notable change is the loss of rod cells in the retina and subsequent “transmutation” of cones into a rod-like morphology and physiology. While many studies have noted the absence of some rod-specific genes, such as the visual pigment Rhodopsin (RH1), these studies have focused on just a handful of species that are nested deep in the gecko phylogeny. Thus, it is not clear whether these changes arose through convergence, are homologous and ubiquitous across geckos, or restricted …

Organic Agriculture Teaching And Learning In 2025: Transforming The Future Learning Landscape, Randa Jabbour, Charles A. Francis, Mary Barbercheck, Katharina S. Ullman

Department of Agronomy and Horticulture: Faculty Publications

University instructors are compelled to anticipate future changes in farming and food systems that will impact their students. Sixteen educators met in 2018 to envision the future of organic agriculture courses needed by 2025. Likely future global issues include food access, especially for people of limited economic means; climate change; and fossil fuel costs. Changes that will impact education are increasing demand for quality food, more organic production, and globalization of food systems due to consolidation. Probable course content changes are increasing focus on whole farm systems; designing for resilience in changing physical, economic, environmental, and political climates; and increasing …

Sisters Of The Caliphate: Media And The Women Of Isis, Kathleen German, Rosemary Pennington

Journal of Vincentian Social Action

Women have long been viewed as the “weaker sex”–more peace-loving and passive than men. However, clashes in Sri Lanka and Northern Ireland have shown that women are both willing and able to participate in violent conflict (Alison, 2004; Cheldelin & Eliatamby, 2011). We will specifically examine the recruitment to and roles of women in the Islamic State through an examination of the scholarship on female fighters, in order to contextualize the women of ISIS. We conclude with a suggestion that scholars and others interested in the experience of women in conflict move away from overly simplistic framings which suggest women …

Forgetting Fallujah: Covert Silence, Digital Public Memory And The Civilian Consequences Of Operation Phantom Fury In Iraq, Jason L. Jarvis

Journal of Vincentian Social Action

“Forgetting Fallujah” challenges the institutional memory of Fallujah advanced in “US Marines.” For most people, the understanding of war is based entirely on media images (Schwalbe, 2006; Sontag, 2003). This essay, like the work of Jackie Orr (2016) is a salvo in an ideological struggle to re-signify the meaning of Fallujah. The invasion of Fallujah was more severe for civilians than the torture of prisoners at Abu Ghraib, yet Fallujah caused almost no public outcry because it lacked visual evidence and went uncovered by mainstream American media (Entman, 2006). Covert silence in “US Marines” demonstrates that digital memory is easily …

Sex, Scents, And Cephalopods: Factors That Affect Social And Reproductive Behavior In Chambered Nautilus And Oval Squid, Naomi J. Lewandowski

Dissertations, Theses, and Capstone Projects

Cephalopods are a highly specialized group of molluscs that show a wide range of behavioral patterns. Chambered nautilus (Nautilus pompilius) and oval squid (Sepioteuthis lessoniana) are two very distinct species of cephalopod that both provide unique insight into cephalopod reproductive and social behavior. In experiments utilizing both species, I aimed to fill in knowledge gaps in a range of reproductive behaviors from fundamental responses to conspecifics, to preferred mating habitat.

In Chapter 1 and 2 I tested individual nautiluses in a Y-maze where recipients were exposed to paired odors of two donor nautiluses. I collected data …

The Impact Of Framing On Acceptance Of Cultured Meat, Christopher Bryant, Courtney Dillard

University Studies Faculty Publications and Presentations

Cultured meat can be produced from growing animal cells in-vitro rather than as part of a living animal. This technology has the potential to address several of the major ethical, environmental, and public health concerns associated with conventional meat production. However, research has highlighted some consumer uncertainty regarding the concept. Although several studies have examined the media coverage of this new food technology, research linking different frames to differences in consumer attitudes is lacking. In an experimental study, we expose U.S. adults (n = 480) to one of three different frames on cultured meat: “societal benefits,” “high tech,” and “same …

Contagious Yawning In The Domestic Cat (Felis Catus), Ariel M. Lombardo Aghishian

Theses and Dissertations

This study investigates contagious yawning in domestic cats towards their owners, looking at potential links with empathy. Results showed no significant difference in yawning between conditions. The solitary nature of wildcats and their shared ancestor, and the unique social behavior in domesticated cats may explain these findings.

Vincent Van Gogh's Wheatfields And Piet Oudolf's Meadows: Color, Contrast And Change In The Landscape, Erin A. Cox

Landscape Architecture Undergraduate Honors Theses

This capstone investigates the unique relationship between Vincent Van Gogh and planting designer Piet Oudolf's vibrant use of color and contrast in their work as it relates to their perception of the landscape. The project is mainly a comparison of the two artists, exploring Van Gogh's use of complementary colors and brushstroke techniques to create vivid contrast in his renderings of agrarian landscapes, and Oudolf's parallel approach to creating painterly meadows and prairie gardens. The project focuses on Van Gogh’s study of wheat field landscapes, which are essentially the same in structure and composition but can be used to compare …

Chemophobia And The Relation To Names, Justin Crow

Undergraduate Research Conference

Chemophobia is a recently identified cultural phenomena where people are afraid of chemicals in their lives, whether "chemicals" are in their food, their medicines, vaccinations, and other products. An increasing amount of people have a concern about the risk associated with chemicals in their everyday life. Chemistry professionals find this a bit strange as Chemistry states that all matter is made up of chemicals. Chemistry has many systems of naming and understanding chemicals which can exclude people from understanding the risk or lack thereof attributed to materials that are common in daily life. This effect could be accentuated by educational …

Comparison Of Organic Food Packaging In Denmark, Finland, Germany, Great Britain And Italy, Sara Paunonen, Marja Pitkänen, Mika Vähä-Nissi, Ville Leminen, Mika Kainusalmi

Journal of Applied Packaging Research

The objective of this study was to provide a snapshot of organic food assortments in supermarkets in Denmark, Finland, Germany, Great Britain, and Italy, and compare the packages used for five organic food products (eggs, meat, fish, mushrooms, berries). In addition, a comparison was made between packaging for regular and organic whole eggs. The highest number of organic products was found in the Danish supermarket. The main difference between the countries was in the use of national organic logos. Of the different food products, egg cartons had the most variation in materials and visual design. In all countries the product …

How Virtual Reality Impacts The Landscape Architecture Design Process During The Phases Of Analysis And Concept Development At The Master Planning Scale, Todd Johnson, Benjamin H. George, Drew M. Hill

Landscape Architecture and Environmental Planning Faculty Publications

Virtual reality (VR) can offer many benefits for designers. In the field of landscape architecture, the technology is primarily being used as a tool for design review in the late stages of the design process, yet many of the benefits that make VR valuable in the later stages of the design process suggest that VR may be equally valuable when used in earlier stages such as analysis and concept development. This research examined incorporating VR into the design phases of analysis and concept development, and integrated its use with traditional landscape architecture methods to measure its impacts on a large …

Social Signals Detected By The Mechanosensory Lateral Line System Influence Reproductive Behavior And Neural Activation Patterns In An African Cichlid Fish, Chase Anselmo

Honors Capstones

No abstract provided.

Correlated Evolution Of Plumage Color In Female And Male Antbirds (Aves: Thamnophilidae), Brandi Sun

Honors Capstones

No abstract provided.

The Effect Of Social Hierarchy On Behavior In Cercopithecus Petaurista, Mason Reinhart

The Pegasus Review: UCF Undergraduate Research Journal

The social group hierarchy of three captive C. petaurista specimens was monitored and determined by observing agnostic fights, aggression, and allogrooming incidents. This social group was monitored from May to August in 2017 for 60.5 observation hours total as a continuation of a previous study conducted in spring of 2017. The study took place at the Central Florida Zoo and Botanical Gardens. All observations were recorded on template sheets with the location of each individual noted on a 6x6 grid representing the enclosure. A new sheet was used for each 15-minute increment during observation periods. It was concluded that agnostic …

Report Of The Workshop Evaluating The Nature Of Midwater Mining Plumes And Their Potential Effects On Midwater Ecosystems, Jeffrey C. Drazen, Craig R. Smith, Kristina Gjerde, Whitlow Au, Jesse Black, Glenn Carter, Malcolm Clark, Jennifer M. Durden, Pierre Dutrieux, Erica Goetze, Steven Haddock, Mariko Hatta, Chris Hauton, Paul Hill, Julian Koslow, Astrid B. Leitner, Chris Measures, Audre Pacini, Frank Parrish, Thomas Peacock, Jessica Perelman, Tracey T. Sutton, Celine Taymans, Verena Tunnicliffe, Les Watling, Hiroyuki Yamamoto, Emily Young, Amanda F. Ziegler

Marine & Environmental Sciences Faculty Articles

The International Seabed Authority (ISA) is developing regulations to control the future exploitation of deep-sea mineral resources including sulphide deposits near hydrothermal vents, polymetallic nodules on the abyssal seafloor, and cobalt crusts on seamounts. Under the UN Convention on the Law of the Sea the ISA is required to adopt are taking measures to ensure the effective protection of the marine environment from harmful effects arising from mining-related activities. Contractors are required to generate environmental baselines and assess the potential environmental consequences of deep seafloor mining. Understandably, nearly all environmental research has focused on the seafloor where the most direct …

New Frontiers 2019-20 Brochure

Annual Brochures

Established in 2013, the New Frontiers in Biomedical Research Seminar Series is a year-long research lecture series at Louisiana Tech University. This series brings world-renowned researchers from a variety of biomedical fields to campus where students and faculty have the opportunity to learn and interact with leaders in their fields of study. These seminars represent the interests and efforts of different colleges and academic programs across campus who share a passion for research that seeks to understand and improve human health and medicine.

Starting in November, all seminars will be held at Louisiana Tech University in University Hall beginning at …

A Field-Based Survey Of Fluorescence In Tropical Tree Frogs Using An Led Uv-B Flashlight, Michelle E. Thompson, Ralph Saporito, Diego H. Ruiz-Valderrama4, Guido F. Medina-Rangel, Maureen A. Donnelly

2019 Faculty Bibliography

No abstract provided.

Quantifying Signpost Usage By Captive Male White-Tailed Deer, Cassie L. Auxt, Eric S. Michel, Jonathan A. Jenks

The Prairie Naturalist

White-tailed deer (Odocoileus virginianus) use rubbing of signpost structures to communicate during the breeding season. Rubbing of signpost structures allows deer to communicate via visual and chemical cues, which allows them to establish dominance hierarchies and maintain hierarchal status throughout the breeding season (Moore and Marchinton 1974, Miller et al. 1981, Hewitt 2011). Once a living tree is rubbed, the exposed light-colored sapwood creates a stark contrast in wooded areas, increasing visibility and further enticing deer to investigate the structure (Oehler et al. 1995). Anatomically, the tubular apocrine sudoriferous glands of white-tailed deer are located at the antler …