Biology Commons^™

Biology Department Publications: 2024, Sam Lindgren

Biology Department Bibliographies

This document is a non-comprehensive list of publications made by graduate students, post-doctoral researchers, and faculty members in the Biology Department in 2024. It indexes those publications available through PubMed, and serves as an archival record of the Department's robust scholarly contributions.

The Impact Of Paternal Obesity On Placental Development And Function During Pregnancy, Delaney G. Wolfe, Delaney G. Wiolfe

Department of Nutrition Student Projects

Paternal obesity is a rising concern in conception and reproductive health, with increasing evidence suggesting its impact on pregnancy outcomes. While maternal obesity's effects on fetal development and placental function are well-documented, the role of paternal obesity remains less understood. The placenta, crucial for nutrient exchange and fetal development, can be disrupted by inflammation, oxidative stress, and epigenetic modifications, potentially leading to long-term health implications for both maternal and fetal health. Understanding the paternal influence on placental development is essential for improving pregnancy outcomes and offspring
health. This study aims to investigate the relationship between paternal obesity on placental function …

The Role Of Urbanization And Corticosterone In Auditory Sensory Processing In House Sparrows (Passer Domesticus), Brooke Fox, Ashley Lauraine, Hannah Peterson

24th Annual A. Paul and Carol C. Schaap Celebration of Undergraduate Research and Creative Activity (2025)

Urban habitat expansion will introduce new anthropogenic challenges for wildlife populations, including habitat fragmentation, novel predators, and pollution. These challenges may hinder animal communication and contribute to increased stress levels. This study will investigate the physiological consequences of stressors on the house sparrow (Passer domesticus). Specifically, we will examine how urbanization affects stress hormone (i.e., corticosterone, CORT) levels and its relationship to auditory processing. It is predicted that urbanization may impose novel stressors on animals, leading to differences in this hormone across urban and rural birds. We seek to understand if differences in CORT levels could impact animals' …

Foraging Efficiency Of Rural And Urban House Sparrows, Passer Domesticus, Among Natural And Unnatural Obstacles, Annie Waldron, Katie Kowalyk, Mara Gutierrez

24th Annual A. Paul and Carol C. Schaap Celebration of Undergraduate Research and Creative Activity (2025)

Urbanization may lead to food displacement for many animals. Urban birds are exposed to man-made objects that can result in variable food locations, unlike rural birds who inhabit areas where food locations are typically consistent. The introduction of unnatural obstacles may affect a sparrow's ability to find and reach food sources. Scientific studies have yet to find a significant increase in problem-solving skills related to foraging in urban versus rural birds. Our research seeks to determine the foraging efficiency of rural and urban house sparrows when exposed to obstructed food sources. Novel objects near a food source may scare birds …

Analysis Of Psychoactive Compounds In The Web-Building Behavior Of Mangora Maculata, Diane R. Castner

Undergraduate Honors Thesis Projects

The arachnid central nervous system (CNS) functions in an analogous way to the human CNS, despite spiders not having a central brain. Previous studies on spider behavior and web formation have investigated the impacts of stimulants, depressants, sedatives, and hallucinogens, but the impacts of serotonin reuptake inhibitors (SSRIs), such as fluoxetine are unknown. This study examined the impacts of caffeine, nicotine, ethanol, and fluoxetine on the web building behavior of Mangora maculata. Webs were characterized by 9 metrics: web entirety, size of web, radial angles, cell length, number of large holes, frequency of forking of spiral threads, radial angle consistency, …

Impacts Of Riverine Heatwaves On Rates Of Ecosystem Metabolism In The United States, Spencer J. Tassone, Michelle Kelly, Olivia N. Beidler, Michael L. Pace, Amy Marcarelli

Michigan Tech Publications

Rivers produce and decompose large amounts of carbon globally due, in part, to high rates of gross primary production (GPP) and ecosystem respiration (ER), collectively known as ecosystem metabolism. Water temperature is a major driver of ecosystem metabolism, and in-stream temperatures are increasing globally, including extreme temperature events called heatwaves. This study used published estimates of daily GPP and ER from 48 stream and river locations in the United States to examine how ecosystem metabolism responds to riverine heatwaves. During low-severity heatwaves, GPP and ER increase proportionally, resulting in no net difference. However, during severe and extreme heatwaves, GPP declined …

Interactions Among Nutrients Govern The Global Grassland Biomass–Precipitation Relationship, Philip A. Fay, Laureano A. Gherardi, Laura Yahdjian, Peter B. Adler, Jonathan D. Bakker, Siddharth Bharath, Elizabeth T. Borer, W. Stanley Harpole, Erika Hersch-Green, George R. Wheeler

Michigan Tech Publications

Ecosystems are experiencing changing global patterns of mean annual precipitation (MAP) and enrichment with multiple nutrients that potentially colimit plant biomass production. In grasslands, mean aboveground plant biomass is closely related to MAP, but how this relationship changes after enrichment with multiple nutrients remains unclear. We hypothesized the global biomass–MAP relationship becomes steeper with an increasing number of added nutrients, with increases in steepness corresponding to the form of interaction among added nutrients and with increased mediation by changes in plant community diversity. We measured aboveground plant biomass production and species diversity in 71 grasslands on six continents representing the …

Characterization Of Long-Noncoding Rnas In Prostate And Pancreatic Cancer Through Single Cell Transcriptomics, Debanjan Saha

Arts & Sciences Graduate Student Theses and Dissertations

Metastatic castration resistant prostate cancer (mCRPC) is a subtype of prostate cancer that develops after metastasis and resistance to hormone therapy, thereby carrying a poor prognosis. Likewise, pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal malignancies due to its propensity to present at advanced, unresectable stages in patients. Recent genomic studies have identified molecular features of mCRPC and PDAC, such as the existence of mutations in key driver genes, the extensive transcriptomic intra-tumoral heterogeneity, the role of regulatory elements in dictating driver gene expression, mechanisms of treatment resistance, and the interactions with the immunosuppressive and stromal tumor- microenvironment …

Determination Of The Effects Of Biogenic Metal Nanoparticles Concentrations On Soil Properties, Vicia Faba Growth And The Toxicity On Black Aphid, Ayoub Sabir Karim, Halala Rahman Qadr, Sakar Abdulqadr Saeed, Nashmeel Saeed Khudhur

Karbala International Journal of Modern Science

The development of nanomaterials could support more extensive agricultural uses, including nano-pesticides. Current study was conducted to observe the effects of different concentrations (25, 50, 75, 100, 150 and 200 ppm) of biosynthesized zinc oxide nanoparticles (ZnO NPs) and aluminum oxide nanoparticles (Al₂O₃ NPs) on soil, faba bean and toxicity on black aphid (Aphis fabae). The synthesized ZnO NPs from Musa paradisiaca L. characterized by ultraviolet (UV)-visible spectroscopy, Fourier Transform Infrared Spectroscopy, X-ray diffraction and Transmission electron microscopy. Al₂O₃ NPs was prepared by calcination of Iraqi kaolin via evaporation process. Highest pH …

Ethical Concerns And Implications Of Expanded Carrier Screening, Emily Andres

Student Research Symposium

The rapid evolution in the field of genetics is often met with uncertainty and skepticism. With the advancements in genetic technologies, expanded carrier screening (ECS) has emerged as a powerful tool in reproductive medicine. While ECS provides prospective parents with insight into their genetic risk, it also raises serious ethical questions for many.

Phylogeny And Historical Biogeography Of Uroleucon Aphids, Audrey Mullen

Student Research Symposium

Research Questions

• Are South American Uroleucon aphids endemic or recently introduced?

• If endemic, did the aphids come from North America or Eurasia?

• When did dispersal events occur?

• Did temperate zone-adapted Uroleucon aphids cross through equatorial tropical forest?

Investigation Of Immune/Performance Trade-Offs In Neonate Children's Pythons, Ellie Hartman

Student Research Symposium

Introduction

Energetic trade-offs are a key consideration when understanding an organism’s life history. One of these tradeoffs occurs between investment in immunity and performance.

• Individuals that invest more energy into immunity may be less equipped to avoid predation or find food, while those prioritizing performance may be more susceptible to infection
• Hypothesis: In response to a novel antigen, neonate snakes will have an immune response we can measure by counting immune cells. Additionally, we predict that strike frequency, swim speed, and endurance will be reduced in snakes undergoing an immune response and that with greater immune response we will see …

Evaluating The Stress System Of The Grieving Brain: Corticotropin-Releasing Factors And Partner Loss In Coyotes, Rachel Tong

Student Research Symposium

Introduction

Social bonds are fundamental and essential

• Positive and negative effects

The stress system¹ :

• Corticotropin-releasing factor (CRF) system
• CRFR1 and CRFR2
• Acts on the HPA axis, amygdala, and hippocampus

Genetic monogamy is common among coyotes

Importance:

• Coyotes’ greatest threat are humans
• An abandoned partner can disrupt biology and behavior

Animals experience social loss too!

Wiped Out?: Testing Peribacillus Frigoritolerans Against Hospital Disinfection Techniques, Alexis Lupus, Ashtyn Whatcott, Asaria Zizumbo, Cade Neuberger

Student Research Symposium

Introduction

Hospital disinfection is essential to patient health, as harmful bacteria can compromise patient health. Factors like pathogen type and cleaning frequency influence disinfection efficacy. Sani-Cloth® disinfectant wipes are widely used in healthcare settings and have shown high effectiveness, particularly on surfaces such as iPad screens. The Sani-Cloth® disinfectant wipes tested in this experiment protect against gram-negative and gram-positive bacteria .This experiment evaluates three types of Sani-Cloth® wipes against Peribacillus frigoritolerans, a gram-positive soil bacterium. Given the range of microbes introduced in hospital environments, especially in high-traffic areas like emergency departments, identifying the most effective wipes helps ensure optimal infection …

Optimizing Antibiotics: The Ph Factor, Tyler Barry, Camila Campos, Claire England, Carson Porter

Student Research Symposium

Antibiotic-resistant bacteria are a global concern. Antibiotic production depends on factors like pH and salinity. Antibiotics are waiting to be discovered in soil that can aid with health treatments [1]. We isolated colonies from soil. One isolate produced antibiotics, forming an inhibition zone against Staph. epidermidis. Our soil had a pH of 8, suggesting it's an alkaliphile that can thrive in basic conditions. Optimal pH enhances antibiotic production, benefiting medicine [3].

Implications Of Positive Nitrogen Fixation Capabilities Of Peribacillus, Weston Farley, Ariana Long

Student Research Symposium

Recent studies highlight the versatile role of Peribacillus simplex in sustainable agriculture. This bacterium has been shown to alleviate saline and alkaline stress in maize, promoting plant growth and improving crop yield under challenging conditions and enhance agricultural sustainability by supporting soil health and reducing the need for chemical fertilizers. Its role in fixing nitrogen and improving plant health makes it an essential player in eco- friendly farming practices.. Other species of Peribacillus have been shown to fix nitrogen, suggesting that our sample bacteria may also have these same capabilities.

• Our goal in this research is to determine whether …

Disjunction In Arachnospila (Pompilidae: Hymenoptera): Convergent Evolution Or Recent Dispersal?, Bridger Jorgensen, Steven Madsen

Student Research Symposium

Convergent evolution is defined as unrelated species evolving similar traits. A disjunct distribution is the appearance of species or groups of species in disconnected geographical areas. Is the disjunction we see in Arachnospila due to a recent disjunct distribution/long distance dispersal event or long-term convergent evolution?

Evaluating Exoelectrogenic Potential Through Hydrogen Production, Alec Merryweather, Jaxon Schenk, Hannah Castillo, Madison Weiers

Student Research Symposium

This research project investigates the electrical output of local exoelectrogenic bacteria to develop sustainable energy sources. By identifying and optimizing these bacteria, the aim is to advance microbial electrochemical cells. The experiment involved collecting and culturing local bacteria, then measuring their hydrogen production through the use of an H2Blue test. Successful outcomes could lead it to become an eco-friendly energy solution.

Genomic And Metabolic Network Properties In Thermophiles And Psychrophiles Compared To Mesophiles, Amal Saeed Alblooshi

Thesis/ Dissertation Defenses

Thermophiles and psychrophiles are extremophilic microorganisms that thrive in harsh conditions. Thermophiles are mostly located in hot springs, prosper in high temperatures. Psychrophiles thrive in extremely cold environments, including polar regions and deep-sea habitats. Although they play a crucial role in biotechnology and environmental research, their mechanisms of adaptation are still not well understood. The main objective of this thesis is to understand the genomic characteristics and metabolic network features in thermophiles and psychrophiles compared to mesophiles. The genomes of 59 species among thermophiles, psychrophiles, and mesophiles were collected from the NCBI database. These genomes were used to analyze their …

Tiny Fixers, Big Impact: Can This Bacteria Replace Your Fertilizer?, Jocelynn Burton, Abby Feragen, Tyler Miller, Landen Winder

Student Research Symposium

If cultured on a media lacking available nitrogen, then our isolated bacteria will continue to proliferate through the assimilation of nitrogen available in the air.

How Does Salinity Affect Antibiotic Production?, Alec Backus, Madelyn Peel, Anika Shaw, Alexander Van Hamme

Student Research Symposium

Antibiotic production by microorganisms can be heavily influenced by environmental factors, such as salinity. In this experiment we investigated how varying environmental salinity affected antibody production of the isolate SP25-MRP-11, which was obtained from a filtrate of soil from the Dr. Gene Miller Life Science Garden.

Bacterial Treatment Enhanced Root Growth In Acidic And Neutral Conditions, But Limited Arabidopsis Thaliana Leaf Development, Taylor Brenchley, Ryan Colqui, Alexis Tueller

Student Research Symposium

• Soil bacteria help plants tolerate pH stress, extreme pH (too acidic or basic) limits plant growth, including Arabidopsis thaliana.
• Some bacteria improve plant resilience, but their role in pH tolerance is unclear, we aim to bridge this knowledge gap further.
• Soil acidification from pollution threatens global food security.
• This study tests whether a bacterial isolate from acidic soil helps A. thaliana grow in different pH conditions, which can be used in agriculture.

Effects Of Rapid Temperature Change On Soil Microbe Growth, Jordan Donahue, Gabby Pulsipher, Caylee Roe, Halli Fuller

Student Research Symposium

Many bacterial microbes have a maximum growth curve at 29-37 degrees Celsius. But, many microbes, like those found in soils, are exposed to the elements rather than an incubator. As the weather is becoming more unpredictable due to climate change, are our soil microbes suffering? If they are, we may be at risk of losing novel sources of antibiotics before they are discovered.

Possibilities: Indoor Commercial Strawberry Pollination By Osmia Species, Annalise Mckinnon

Student Research Symposium

Commercial strawberries in greenhouses are traditionally pollinated using hand pollination, fans, or bumblebees. Osmia bee species are small, solitary, cavity nesting bees whose pollination habits are still being discovered. To increase knowledge of pollination possibilities, we used a caged indoor greenhouse experiment to test pollination and nesting capacity in 3 Osmia species (Fig. 1).

Pilrα Sustains Microglial Capacity To Process Myelin In A Mouse Model Of Demyelination, Kent Lin

Arts & Sciences Graduate Student Theses and Dissertations

Alzheimer's disease (AD) is characterized by amyloid-β (Aβ) plaques, neurofibrillary tangles, and neurodegeneration. Microglia, the resident immune cells of the central nervous system (CNS), play a crucial role in AD pathogenesis by containing the spreading of Aβ plaques. Genetic studies have associated a variant of the receptor Paired Immunoglobulin-like Type 2 Receptor Alpha (PILRα) with reduced risk for AD. PILRα is a receptor found on myeloid cells, such as microglia, that binds to endogenous cell surface glycoproteins and sends inhibitory signals within the cell. Additionally, it serves as an entry receptor for Herpes Simplex Virus 1. To elucidate the role …

Induction Of Diabetic Cardiomyopathy In A Three-Dimensional Myocardial Model, Maelyn Andreasen

Student Research Symposium

Diabetic cardiomyopathy: Impairs and damages heart tissue through chronic exposure to hyperglycemia, or high blood sugar, in diabetic individuals

The Effects Of Biodiversity On Plant Parasitic Nematodes, Josh Lund

Student Research Symposium

The Dilution Effect Hypothesis¹ argues that biodiversity reduces pathogen transmission risk due to dilution of susceptible hosts, enhanced microbial communities that suppress pathogens, interference competition, nutrient heterogeneity, and ecological stability.

A Look Into Frugivorous Interactions With Psychotria And Palicourea In Barro Colorado Island, Panama, Madison Smart, Gerald Schneider, Elsa Jos

Student Research Symposium

Importance of Seed Dispersal

• Seed dispersal is a vital ecological process that influences plant population dynamics and ecosystem structure.
• Half of all seed-bearing plants rely on frugivorous animals to disperse their seeds to new locations, promoting plant recruitment

Pseudomonas Parafulva Confirmed To Have Antifungal Properties When Grown In Conjunction With Botrytis Cinerea, Caden Dupee, Kylee Eldredge, Zachary Elmer, Joshua Hartvigsen

Student Research Symposium

Widespread antibiotic use has led to antibiotic resistance of infectious bacteria. (Young, 2017) As part of the TinyEarth Program, the lab group collected and tested local soil samples for bacteria with hopes of finding novel antibiotic properties. From the soil samples, a bacteria was isolated, subsequently sequenced, and determined to be Pseudomonas parafulva. P. parafulva is a Gram-negative bacterium that has been known to frequent rice paddies of eastern Asian countries and has been collected in select regions of North America, including that of Cache Valley. P. parafulva has been linked to anti-fungal activities on plants. (Lui et …

The Effects Of Different Types Of Fertilizer On The Growth Of Pseudomonas Frederiksbergenis, Aspen Curtis, Nadia Greding, Kylie Fluckiger, Samantha Clements

Student Research Symposium

Which fertilizers will promote the growth of the isolate of Pseudomonas frederiksbergensis (P. frederiksbergensis)?