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Preliminary Analysis Of The Effects Of Non-Target Supplemental Feeding On Camera Trap Captures Of Small Mammals In Central Georgia, Raena McCown, Travis Cunningham, Alfred J. Mead 2022 University of Georgia

Preliminary Analysis Of The Effects Of Non-Target Supplemental Feeding On Camera Trap Captures Of Small Mammals In Central Georgia, Raena Mccown, Travis Cunningham, Alfred J. Mead

Georgia Journal of Science

Supplemental bird feeding is a widespread hobby throughout western culture. Although it brings joy to many people, bird feeding has been shown to have potentially negative effects on local bird populations and small mammalian species. To study the differences in local occurrence of native small mammalian species around bird feeders and in more distant settings, six camera traps were placed in a rural residential area in Putnam County, Georgia. Three cameras were placed facing bird feeders and three placed a minimum of 60 m away from the feeders. Species presence was recorded three days a week from 12:00 am Monday …


Caribbean Reef-Building Coral-Symbiodiniaceae Network: Identifying Symbioses Critical For System Stability In A Changing Climate, Shaman Patel 2022 Nova Southeastern University

Caribbean Reef-Building Coral-Symbiodiniaceae Network: Identifying Symbioses Critical For System Stability In A Changing Climate, Shaman Patel

All HCAS Student Capstones, Theses, and Dissertations

Increasing global ocean temperatures and frequency of marine heatwaves pose dire consequences for coral reefs. High temperatures often lead to disruptions in coral symbiosis resulting in coral bleaching, increasing the mortality of corals. However, corals can potentially avoid bleaching peril by associating with thermally tolerant symbionts. Here we provide a tool for understanding symbiosis network stability of Caribbean reef-building corals. We created a network of Caribbean hermatypic corals and their associated Symbiodiniaceae phylotypes. A bleaching model was applied to this network to test for resilience and robustness (R50) to thermal stress. It was also layered with trait data for coral …


Context And Content Of Teaching Conversations: Exploring How To Promote Sharing Of Innovative Teaching Knowledge Between Science Faculty, A. Kelly Lane, Brittnee Earl, Stephanie Feola, Jennifer E. Lewis, Jacob D. McAlpin, Karl Mertens, Susan E. Shadle, John Skvoretz, John P. Ziker, Marilyne Stains, Brian A. Couch, Luanna B Prevost 2022 University of Minnesota Twin Cities

Context And Content Of Teaching Conversations: Exploring How To Promote Sharing Of Innovative Teaching Knowledge Between Science Faculty, A. Kelly Lane, Brittnee Earl, Stephanie Feola, Jennifer E. Lewis, Jacob D. Mcalpin, Karl Mertens, Susan E. Shadle, John Skvoretz, John P. Ziker, Marilyne Stains, Brian A. Couch, Luanna B Prevost

Faculty Publications in the Biological Sciences

Background: Change strategies may leverage interpersonal relationships and conversations to spread teaching innovations among science faculty. Knowledge sharing refers to the process by which individuals transfer information and thereby spread innovative ideas within an organization. We use knowledge sharing as a lens for identifying factors that encourage productive teaching-related conversations between individuals, characterizing the context and content of these discussions, and understanding how peer interactions may shape instructional practices. In this study, we interview 19 science faculty using innovative teaching practices about the teaching-focused conversations they have with different discussion partners. Results: This qualitative study describes characteristics of the relationship …


Late Quaternary Biotic Homogenization Of North American Mammalian Faunas, Danielle Fraser, Amelia Villaseñor, Anikó B. Tóth, Meghan A. Balk, Jussi T. Eronen, W. Andrew Barr, A. K. Behrensmeyer, Matt Davis, Andrew Du, J. Tyler Faith, Gary R. Graves, Nicholas J. Gotelli, Advait M. Jukar, Cindy V. Looy, Brian J. McGill, Joshua H. Miller, Silvia Pineda-Munoz, Richard Potts, Alex B. Shupinski, Laura C. Soul, S. Kathleen Lyons 2022 Museé canadien de la nature

Late Quaternary Biotic Homogenization Of North American Mammalian Faunas, Danielle Fraser, Amelia Villaseñor, Anikó B. Tóth, Meghan A. Balk, Jussi T. Eronen, W. Andrew Barr, A. K. Behrensmeyer, Matt Davis, Andrew Du, J. Tyler Faith, Gary R. Graves, Nicholas J. Gotelli, Advait M. Jukar, Cindy V. Looy, Brian J. Mcgill, Joshua H. Miller, Silvia Pineda-Munoz, Richard Potts, Alex B. Shupinski, Laura C. Soul, S. Kathleen Lyons

Faculty Publications in the Biological Sciences

Biotic homogenization—increasing similarity of species composition among ecological communities—has been linked to anthropogenic processes operating over the last century. Fossil evidence, however, suggests that humans have had impacts on ecosystems for millennia. We quantify biotic homogenization of North American mammalian assemblages during the late Pleistocene through Holocene (~30,000 ybp to recent), a timespan encompassing increased evidence of humans on the landscape (~20,000–14,000 ybp). From ~10,000 ybp to recent, assemblages became significantly more homogenous (>100% increase in Jaccard similarity), a pattern that cannot be explained by changes in fossil record sampling. Homogenization was most pronounced among mammals larger than 1 …


Egestion Rates Of Microplastic Fibres In Fish Scaled To In Situ Concentration And Fish Density, Loren Hou, Rachel McNeish, Timothy Hoellein 2022 Loyola University Chicago

Egestion Rates Of Microplastic Fibres In Fish Scaled To In Situ Concentration And Fish Density, Loren Hou, Rachel Mcneish, Timothy Hoellein

Biology: Faculty Publications and Other Works

Microplastics (particles <5 >mm) are commonly found in aquatic organisms across taxonomic groups and ecosystems. However, the egestion rate of microplastics from aquatic organisms and how egestion rates compare to other rates of microplastic movement in the environment are sparsely documented.We fed microplastic fibres to round gobies (Neogobius melanostomus), an abundant, invasive species in the Laurentian Great Lakes. We conducted two trials where round gobies were fed microplastic-containing food either a single time (1 day) or every day over 7 days.There was no difference in microplastic egestion rates from the 1 day or 7 day feeding trials, suggesting no impact of …


Mitochondrial Functions Are Major Targets Of Isocyanide Activity In Saccharomyces Cerevisiae, Morgan A. Siemek 2022 University of Nebraska-Lincoln

Mitochondrial Functions Are Major Targets Of Isocyanide Activity In Saccharomyces Cerevisiae, Morgan A. Siemek

Dissertations and Theses in Biological Sciences

The isocyanide functional group is important in the synthesis of many organic compounds and is found in natural products produced by plants, bacteria, marine invertebrates, and fungi. The antimicrobial activities of isocyanide compounds have been documented for almost 70 years, however, the biochemical targets and mechanisms of action remain poorly defined. We report antimicrobial activity of 4-para-nitrophenyl-isocyanide (p-NPIC) against a model fungus, Saccharomyces cerevisiae, and the human fungal pathogen Candida albicans. To identify the cellular and molecular targets of p-NPIC, we screened the non-essential single gene-deletion collection of S. cerevisiae. We aimed …


Sequence-Based Bioinformatics Approaches To Predict Virus-Host Relationships In Archaea And Eukaryotes, Yingshan Li 2022 University of Nebraska-Lincoln

Sequence-Based Bioinformatics Approaches To Predict Virus-Host Relationships In Archaea And Eukaryotes, Yingshan Li

Computer Science and Engineering: Theses, Dissertations, and Student Research

Viral metagenomics is independent of lab culturing and capable of investigating viromes of virtually any given environmental niches. While numerous sequences of viral genomes have been assembled from metagenomic studies over the past years, the natural hosts for the majority of these viral contigs have not been determined. Different computational approaches have been developed to predict hosts of bacteria phages. Nevertheless, little progress has been made in the virus-host prediction, especially for viruses that infect eukaryotes and archaea. In this study, by analyzing all documented viruses with known eukaryotic and archaeal hosts, we assessed the predictive power of four computational …


How Low Can You Go? Expanding Oyster Tidal Niche With Predator Induction, Carter Lin 2022 University of South Alabama

How Low Can You Go? Expanding Oyster Tidal Niche With Predator Induction, Carter Lin

Theses and Dissertations

An oyster’s realized niche is constrained by different stressors based on tidal elevation, such as desiccation or benthic predators. These factors constrain survival and set the boundary for their realized niche. Eastern oysters (Crassostrea virginica) also harden their shells in response to predation risk which reduces their mortality. We performed an empirical study to investigate if this defense mechanism could be manipulated to expand their realized niche. We raised oysters in the presence of blue crab predators (Callinectes sapidus) or in controls sans predators, then monitored their survival at different tidal elevations. Oyster survival was significantly higher in the highest …


Avian Species Distribution Models: Using Location Data To Inform Management Decisions, Marilyn E. Wright 2022 Utah State University

Avian Species Distribution Models: Using Location Data To Inform Management Decisions, Marilyn E. Wright

All Graduate Theses and Dissertations

Both state and federal wildlife agencies strive to conserve and protect wildlife and their habitats as an important public resource. Applied management decisions often rely on being able to obtain data that can efficiently and effectively enhance the understanding of these systems for informing management actions. Wildlife managers often focus efforts on a small subset of species from an ecosystem, typically called focal species, who can serve as surrogates for understanding the health and function of the system. Models that consider how these focal species interact with the ecosystem are often used to better understand important aspects of their life …


Callery Pear Allelopathy Study, Michaela J. Woods, Jonathan T. Bauer, Dena Schaeffer, Ryan W. McEwan 2022 University of Dayton

Callery Pear Allelopathy Study, Michaela J. Woods, Jonathan T. Bauer, Dena Schaeffer, Ryan W. Mcewan

Five Rivers MetroParks Collaboration Data Archive

No abstract provided.


Environmental Sensitivity Of Maternal And Offspring Phenotype In The Green Anole (Anolis Carolinensis) Lizard, Jamie Marks 2022 University of New Orleans

Environmental Sensitivity Of Maternal And Offspring Phenotype In The Green Anole (Anolis Carolinensis) Lizard, Jamie Marks

University of New Orleans Theses and Dissertations

Animals dynamically invest their acquired energetic resources into fitness-related traits, and life-history trade-offs occur when limited resources are invested in a given trait at the expense of another. The phenotypic effects of life history trade-offs are well documented, but the mechanisms facilitating these trade-offs are poorly understood. One such mechanism is the insulin/insulin-like signaling (IIS) network, and specifically its two primary hormones: insulin-like growth factor 1 (IGF1) and insulin-like growth factor 2 (IGF2). IGF1 is well-characterized but IGF2 is severely understudied, though it is present in nearly all amniotes and sometimes expressed at higher levels than IGF1 in adulthood. I …


Applied Studies Of Raptor Sensory Ecology Are Rare, Christopher J.W. McClure, Simon Potier, Jesse R. Barber 2022 Peregrine Fund

Applied Studies Of Raptor Sensory Ecology Are Rare, Christopher J.W. Mcclure, Simon Potier, Jesse R. Barber

Biology Faculty Publications and Presentations

Light and noise often act as pollutants, but can also be used as tools for managing wildlife (e.g., sensory deterrents). Given that raptors are among the most threatened groups of birds, we expected there to be a moderate amount of applied research on their sensory ecology. We searched Web of Science and Google Scholar to quantify and classify the research that has been conducted on the applied sensory ecology of raptors. Of 32 studies assessing the effects of sensory pollution on raptors, we found that 10 studies examined effects of light pollution and 24 studies examined effects of noise pollution. …


Investigations Into Prg-2 And Its Involvement In Developing Gallus Gallus Retinal Neurons, Jeffrey Parham 2022 Winthrop University

Investigations Into Prg-2 And Its Involvement In Developing Gallus Gallus Retinal Neurons, Jeffrey Parham

Graduate Theses

I am interested in the development of the nervous system, especially since during development nerves grow and extend, but in adults, they do not regenerate if damaged. We are specifically interested in the molecules that guide nerves to the correct target during their development. Lysophosphatidic acid (LPA) is a bioactive molecule that has been shown to play a role in neural development. LPA, through repeated studies, has been shown to stop neurons from growing by causing a physical change in a neuron’s growth cone (a structure used for navigation and growth). Recently, a novel set of genes, called PRGs, have …


(R1522) Modelling The Influence Of Desertic Aerosols On The Transmission Dynamics Of Neisseria Meningitidis Serogroup A, Francis Signing, Berge Tsanou, Samuel Bowong 2022 University of Dschang; Sorbonne University

(R1522) Modelling The Influence Of Desertic Aerosols On The Transmission Dynamics Of Neisseria Meningitidis Serogroup A, Francis Signing, Berge Tsanou, Samuel Bowong

Applications and Applied Mathematics: An International Journal (AAM)

This paper assesses the role of desert aerosols and vaccine on the transmission dynamics of Neisseria Meningitis serogroup A (NmA). It is biologically well-documented that the inhalation of aerosol dust and its presence in the nasal cavity weakens the nasopharyngeal mucosa by damaging the mucosal barrier and inhibiting the mucosal immune defenses of susceptible and vaccinated individuals. We address the latter by proposing and analyzing a mathematical model for the dynamics of NmA that specifically accounts for the fast progression of susceptible and vaccinated individuals to the invasive stage of the disease. We compute the basic reproduction number and use …


(R1980) Effect Of Climate Change On Brain Tumor, Pardeep Kumar, Sarita Jha, Rajiv Aggarwal, Govind Kumar Jha 2022 University of Delhi

(R1980) Effect Of Climate Change On Brain Tumor, Pardeep Kumar, Sarita Jha, Rajiv Aggarwal, Govind Kumar Jha

Applications and Applied Mathematics: An International Journal (AAM)

In this paper, we introduce a new dynamical model addressing the variation in climate condition due the presence of microorganisms. We also introduce a new dynamical model of cancer growth which includes three interactive cell populations with drug free environment, namely tumor cells, healthy host cells, and immune effector cells. In this, we considered the super growth of tumor cells. For the choice of certain parameters, both of the systems exhibit chaotic behavior. The aim of this work is to design the controller to control the chaos and to provide sufficient conditions which achieve synchronization of two non-identical systems, which …


Impact Of Covid-19 On Graduate And Undergraduate Students Of Biology And Their Mental Health, Nana Akwesi Akwaboa 2022 Southern University and A & M College

Impact Of Covid-19 On Graduate And Undergraduate Students Of Biology And Their Mental Health, Nana Akwesi Akwaboa

COVID-19 Research Symposium - Student Publications

The main focus of the study is to investigate the impact of COVID-19 on undergraduate and graduate biology students and its effects on their mental health. The study sheds light on how COVID-19 impacted biology students' academic success, postgraduate career opportunities, and the pandemic's physical, psychological, and financial impact on their mental health. In the wake of the pandemic, the student experienced a common mental health issue each week, including depression, worry, and sadness. From studies, biology students spent their time inquiring about more information online and any available information sources on the influence of the pandemic. Students in higher …


Exploring Dendrimer Nanoparticles To Isolate Covid-19 From Wastewater, Samire Almeida de Oliveira 2022 Southern University and A & M College

Exploring Dendrimer Nanoparticles To Isolate Covid-19 From Wastewater, Samire Almeida De Oliveira

COVID-19 Research Symposium - Student Publications

Research at Southern University, Baton Rouge (SUBR)has been heavily affected by the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2 or COVID-19) pandemic and its related interruptions to the normal functioning of the University. In order to help authorities at SUBR prepare for similar pandemics that arise in the future, this research provides a broad analysis of what is currently known about the effects of the pandemic on research conducted at various institutions during the time period of March to mid-October in 2020. Although our primary emphasis is on research that is supported externally, our discussion also covers research that is …


Bugs, Bullets And Birds: Factors Affecting The Health And Survival Of Ferruginous Hawk Nestlings In The Intermountain West, Ellis A. Juhlin 2022 Utah State University

Bugs, Bullets And Birds: Factors Affecting The Health And Survival Of Ferruginous Hawk Nestlings In The Intermountain West, Ellis A. Juhlin

All Graduate Theses and Dissertations

Ferruginous Hawks are a bird of prey species that nest in sagebrush steppe and grassland habitat. These birds are threatened by habitat loss and fragmentation from urbanization, rural development, oil and natural gas extraction, habitat treatment projects, and wildfires, and experiencing widespread population declines across their breeding range. Because of this, Ferruginous Hawks (FEHAs) have been deemed a Species of Greatest Conservation Need by state management agencies in Utah, Idaho, Wyoming and Nevada. The health and survival of Ferruginous Hawk (FEHA) nestlings is crucial to long-term population viability. Understanding the threats these birds are facing as nestlings can provide valuable …


Insecticide Susceptibility And Resistance Detection In Phlebotomus Argentipes Sandflies (Diptera: Psychodidae: Phlebotominae), Shawna M. Hennings 2022 Utah State University

Insecticide Susceptibility And Resistance Detection In Phlebotomus Argentipes Sandflies (Diptera: Psychodidae: Phlebotominae), Shawna M. Hennings

All Graduate Theses and Dissertations

Leishmaniasis is an understudied disease found predominantly in high heat and humidity areas. The disease is transmitted by sandflies which are blood-feeding, biting insects. There is currently no known vaccine for any form of leishmaniasis and treatment imposes a significant economic impact on already poor and marginalized populations, as well as severe, lingering side effects for afflicted individuals. Annually, there are millions of people around the world afflicted with a form of Leishmaniasis that is transmitted by species of sandflies. The primary sandfly population control method for over half a century has been indoor residual spraying using insecticides. The selective …


Functional Analysis Of Legionella Pneumophila Effector Protein, Shreya Neupane 2022 Western Kentucky University

Functional Analysis Of Legionella Pneumophila Effector Protein, Shreya Neupane

Masters Theses & Specialist Projects

Legionella pneumophila is a gram-negative bacterium that causes Legionnaire’s disease (a severe form of pneumonia) in humans. L. pneumophila can cause infection by utilizing its Type IV secretion system, a protein secretion system that transports proteins from the bacterial cytosol into the infected macrophage. Effectors released from the Type Iv secretion system allow L. pneumophila to create a safe environment to survive, replicate and cause infection. One such effector, RavQ, inhibits cell proliferation of mammalian HEK 293T cells and localizes to the cell’s nucleus, leading us to hypothesize that RavQ interferes with cellular activity in the nucleus. To detect its …


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