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Astrocyte Spatial Distribution Affects Growth Dynamics Of Breast Cancer Brain Metastases: An Agent-Based Modeling Study, Rupleen Kaur May 2024

Astrocyte Spatial Distribution Affects Growth Dynamics Of Breast Cancer Brain Metastases: An Agent-Based Modeling Study, Rupleen Kaur

Biology and Medicine Through Mathematics Conference

No abstract provided.


Tracking Food Quality In Algae-Daphnia Ecosystems Through Stage Structured Models And Colimitation, Tomas Ascoli May 2024

Tracking Food Quality In Algae-Daphnia Ecosystems Through Stage Structured Models And Colimitation, Tomas Ascoli

Biology and Medicine Through Mathematics Conference

No abstract provided.


Multiscale Modeling Of Microtubule Polarity Mechanisms Following Neuronal Axotomy, Hannah Scanlon May 2024

Multiscale Modeling Of Microtubule Polarity Mechanisms Following Neuronal Axotomy, Hannah Scanlon

Biology and Medicine Through Mathematics Conference

No abstract provided.


Maturation Of An Off-Channel Habitat Concept To Conserve Native Fishes In The Lower Colorado River, Paul C. Marsh, Thomas E. Dowling, Thomas F. Turner, Megan J. Osborne, Brian R. Kesner May 2024

Maturation Of An Off-Channel Habitat Concept To Conserve Native Fishes In The Lower Colorado River, Paul C. Marsh, Thomas E. Dowling, Thomas F. Turner, Megan J. Osborne, Brian R. Kesner

Monographs of the Western North American Naturalist

Two endemic, “large river” fishes of the Colorado River basin of western North America, bonytail Gila elegans and razorback sucker Xyrauchen texanus, are among several critically endangered species in the system. Wild populations of bonytail are gone, and there are no self-sustaining populations of razorback sucker anywhere; reproduction occurs but recruitment does not. Both species have been under intensive management in the Lower Colorado River since the 1980s. Today, with the single exception of Lake Mead, remaining populations are composed entirely of repatriated individuals that depend on stocking for their continued existence. In 2003, a conceptual off-channel habitat (OCH) …


Validation Of A Forensic Method To Be Used In Food Fraud Investigation, Jennifer Melayes, Nicole Deangelo, Vallarie Ostenson, Fabiana Taglia Dr., Deetta Kay Mills Dr. May 2024

Validation Of A Forensic Method To Be Used In Food Fraud Investigation, Jennifer Melayes, Nicole Deangelo, Vallarie Ostenson, Fabiana Taglia Dr., Deetta Kay Mills Dr.

FIU Undergraduate Research Journal

Food fraud is the act in which food is purposefully mislabeled, adulterated, or contaminated, often to make up a percentage of a missing substance when the product is being made. It is often done purposefully to mislead consumers into thinking some ingredient is or is not present in the food, which can be hazardous to the consumer. This project aimed to validate a forensic domestic animal species reference ladder and multiplex PCR kit that can be used in animal investigations, with a focus on food fraud. A multiplex PCR protocol targeting mitochondrial DNA (mtDNA) markers and a species reference ladder …


Screen For Beneficial Genetic And Chemical Modifiers In Drosophila Models Of Als And Traumatic Brain Injury, Will Bonderer May 2024

Screen For Beneficial Genetic And Chemical Modifiers In Drosophila Models Of Als And Traumatic Brain Injury, Will Bonderer

Biological Sciences Theses and Dissertations

The underlying molecular processes of aberrant protein expression in neurodegeneration are intricate and multifaceted, with ribosome-associated quality control (RQC) emerging as a promising avenue of exploration. Ribosome-associated quality control is integral to cellular function. Its evolutionarily conserved pathway encompasses a network of mechanisms designed to ensure the fidelity of protein synthesis, folding, and degradation within the cells of all eukaryotes. The ribosome, central to protein synthesis, plays a pivotal role in this quality control network, and its malfunction can lead to the accumulation of misfolded or aberrant proteins. In the context of neurodegenerative disorders, this dysfunction can have dire consequences. …


Spawning Ecology And Spawning Site Fidelity Of Alligator Gar, Atractosteus Spatula, In The Fourche Lafave River: Implications For River-Floodplain Management And Alligator Gar Conservation, S. Reid Adams, Thomas E. Inebnit, Lindsey C. Lewis, Christopher J. Naus, Edward Kluender, Geoffry G. Spooner May 2024

Spawning Ecology And Spawning Site Fidelity Of Alligator Gar, Atractosteus Spatula, In The Fourche Lafave River: Implications For River-Floodplain Management And Alligator Gar Conservation, S. Reid Adams, Thomas E. Inebnit, Lindsey C. Lewis, Christopher J. Naus, Edward Kluender, Geoffry G. Spooner

Southeastern Fishes Council Proceedings

We studied the spawning ecology of Alligator Gar, Atractosteus spatula, in the Fourche LaFave River (FLR) of Arkansas to better understand their reproductive ecology and spawning resource requirements. Evidence of spawning was only observed in floodplain tributary habitats, particularly the small, adventitious headwater stream West Fork Mill Creek (WFMC). A mid-May to mid-June spawning season was observed for Alligator Gar in the FLR that corresponded with rising water levels (mostly due to backflooding from the Arkansas River) and increased water temperatures (> 20°C). Direct spawning observations at WFMC were made on 17 June 2007, 15 June 2008, 23 May …


Patterns And Potential Mechanisms Of Phenotypic Changes In Urban Small Mammals, Leslie Lopez May 2024

Patterns And Potential Mechanisms Of Phenotypic Changes In Urban Small Mammals, Leslie Lopez

Master's Theses

Urbanization is an example of human induced rapid environmental change that can have wide-reaching ecological effects, including habitat destruction, fragmentation, and alteration of local climates. Effects of urbanization have been shown to impact wildlife, as disturbances resulting from urbanization can create novel environments and selective pressures that could lead to changes in morphology, physiology, or both. Small mammals such as rodents are an ecologically important set of wildlife species because they are a key prey item for several predators, hold strong influence over plants as a primary consumer, and some species carry and transmit major human and animal diseases. Previous …


Removal Of Phenol From Oilfield Produced Water Using Non-Conventional Adsorbent Medium By An Eco-Friendly Approach, Salem Jawad Alhamd, Mohammed Nsaif Abbas, Hassan Jameel Jawad Al-Fatlawy, Thekra Atta Ibrahim, Zaid Nsaif Abbas May 2024

Removal Of Phenol From Oilfield Produced Water Using Non-Conventional Adsorbent Medium By An Eco-Friendly Approach, Salem Jawad Alhamd, Mohammed Nsaif Abbas, Hassan Jameel Jawad Al-Fatlawy, Thekra Atta Ibrahim, Zaid Nsaif Abbas

Karbala International Journal of Modern Science

Petroleum extraction generates substantial quantities of produced water, a challenge compounded by water scarcity in oil-producing regions, notably the Middle East. Leveraging produced water effectively, adhering to environmental standards, can offer a viable solution to the issue of water scarcity. This study explores the potential of mandarin peels as an available, cost-effective adsorbent for treating synthetic aqueous solution simulated to oil-field produced water, specifically targeting phenol, a dangerous pollutant. Employing a batch-mode adsorption unit, six operational factors—phenol concentration, acidity, agitation speed, contact time, adsorbent dose, and temperature—were investigated. Results revealed an inverse relationship between phenol removal and pH, concentration, and …


The Development Of Immunohistochemistry (Icc) And Transcriptomic Protocols To Uncover Neurophysiological Markers Of Stress In Red-Eyed Tree Frogs As A Novel Biome, Shirin Dadina May 2024

The Development Of Immunohistochemistry (Icc) And Transcriptomic Protocols To Uncover Neurophysiological Markers Of Stress In Red-Eyed Tree Frogs As A Novel Biome, Shirin Dadina

Senior Theses and Projects

Adverse childhood experiences (ACEs) include various forms of physical and emotional abuse that lead to detrimental long term effects. Agalychnis callidryas (red-eyed tree frogs) have been identified as a novel biomedical model for ACEs. Red-eyed tree frogs demonstrate an escape hatch mechanism under stressors including those from predators, flooding and hypoxia where the embryo undergoes an accelerated developmental process similar to what is observed in the human population regarding precocious puberty. In order to assess this model for neurobiological outcomes of ACEs, morphological and genomic protocols must be developed and validated which is this study’s focus. Paraffin embedding and microtome …


Exploring Factors That Contribute To Stem Transfer Student Sense Of Belonging, Brittney R. Gallant, Cate Pocitari May 2024

Exploring Factors That Contribute To Stem Transfer Student Sense Of Belonging, Brittney R. Gallant, Cate Pocitari

Student Research Symposium

There is an ongoing disconnect between the number of students who enter college intending to earn a STEM degree and the number of students who persist to degree, this is particularly true for transfer students. Sense of belonging has been named as a STEM persistence factor, yet how that belonging develops for transfer students is largely unknown. Here we used a mixed-methods design to explore the experiences of STEM transfer students at PSU (n=38). Participants completed a survey prior to participating in an interview. The survey and interviews explored their science identity, sense of belonging, and involvement in STEM-related activities. …


Mutagenetic Analysis Of The Minor Capsid Protein Vp3 Of The Archaeal Fusellovirus Ssv1, Laura Costal Lagarde May 2024

Mutagenetic Analysis Of The Minor Capsid Protein Vp3 Of The Archaeal Fusellovirus Ssv1, Laura Costal Lagarde

Student Research Symposium

Viruses, while often associated with disease, are integral to life and play an important role in the microbiome. Despite their importance in medical research, archaeal viruses, particularly those found in extreme environments, are not widely understood. The Sulfolobus Spindle-Shaped Viruses (SSVs) of the Fuselloviridae family are unique among viruses in that they do not kill their host, the archaeon Sulfolobus Solfataricus in volcanic hot springs, but rather slow its growth, allowing for halo assay assessments.The study focuses on the type virus SSV1, which is predominantly composed of the Major and Minor capsid proteins vp1 and vp3, respectively. Previous study has …


Examining The Role Of Rgs2 In The Maintenance Of Diapause After Anoxic Stress In Embryos Of The Annual Killifish Austrofundulus Limnaeus, Patrick Clouser May 2024

Examining The Role Of Rgs2 In The Maintenance Of Diapause After Anoxic Stress In Embryos Of The Annual Killifish Austrofundulus Limnaeus, Patrick Clouser

Student Research Symposium

Austrofundulus limnaeus live in ephemeral ponds of Venezuela. They have evolved a unique life history that includes embryonic diapause, a period of developmental dormancy, metabolic arrest, and reduced protein synthesis. Diapausing embryos are resistant to environmental stress and survive months without oxygen (anoxia). A. limnaeus’ anoxia tolerance is an important survival mechanism as they can be buried in anoxic soil during development. Analysis of RNAseq data from diapausing A. limnaeus embryos show significant down-regulation of RGS2 transcripts in anoxic embryos. RGS2 regulates G-protein receptor signaling by inhibiting associated Ga-proteins and can inhibit protein synthesis. I hypothesis that …


Locating Vitamin D Receptors (Vdrs) In Annual Killifish, Austrofundulus Limnaeus, Rosalia N. Tanori, Amie L. Romney, Jason E. Podrabsky May 2024

Locating Vitamin D Receptors (Vdrs) In Annual Killifish, Austrofundulus Limnaeus, Rosalia N. Tanori, Amie L. Romney, Jason E. Podrabsky

Student Research Symposium

Austrofundulus limnaeus, a species of annual killifish found in unpredictable temporary habitats in South America, has a profound ability to survive long periods without water and oxygen. This tolerance is associated with the ability to enter metabolic dormancy associated with diapause. Entrance into diapause and tolerance of environmental stress is governed by an interplay of genetic and environmental factors. The vitamin D receptor (VDR) is among these factors and plays a crucial role in determining if an embryo will enter diapause or actively develop. My work aims to identify the genomic locations of VDR proteins in the A. limnaeus genome …


Describing Shen & Shen Ming Via A Hybrid Quantum Computational Model, Alex M. Cullen, Johnny Lemau May 2024

Describing Shen & Shen Ming Via A Hybrid Quantum Computational Model, Alex M. Cullen, Johnny Lemau

Student Research Symposium

Definitions for Traditional Chinese Medicine (TCM) terminology within the context of quantum biology (QB) have recently been proposed. These definitions aim to elucidate concepts such as qi meridians in TCM. Our study presents a hypothesis that seeks to provide an operational definition for Spirit (Shen) and Bright Spirit (Shen Ming) in TCM via a scoping review. We propose that Shen represents physical, phenomenological proto-consciousness/consciousness in the forms of computation, such as singular particles/bits/qubits, computers, organisms, or computational strategies, whereas Shen Ming may refer to emergent, quasi-physical meta-proto-consciousness/consciousness formed by coherent relationships of multiple orchestrated/integrated units of computation; manifesting itself as …


Qibc Analysis On Killifish Cells Under Anoxic Conditions, Jaina Canlas May 2024

Qibc Analysis On Killifish Cells Under Anoxic Conditions, Jaina Canlas

Student Research Symposium

Faithful DNA replication is vital for all living organisms. Environmental stressors can cause a multitude of mutations and DNA lesions during replication leading to cell death if not accurately repaired. The annual killifish, Austrofundulus limnaeus, has a heightened tolerance to many known genotoxic stressors, including anoxia. Embryos of the annual killifish can survive months of anoxia during the dry season when the ephemeral ponds they inhabit, completely dry. During these exposures, they have shown they are capable of repairing substantial amounts of damaged DNA. This resilience has led us to hypothesize that A. limnaeus have enhanced DNA repair capabilities. …


Histone Changes As A Response To Lactic Acid Selection In Cells Of Austrofundulus Limnaeus, Lori Tran, Jason Podrabsky, Chelsea Hughes May 2024

Histone Changes As A Response To Lactic Acid Selection In Cells Of Austrofundulus Limnaeus, Lori Tran, Jason Podrabsky, Chelsea Hughes

Student Research Symposium

The killifish Austrofundulus limnaeus is an extremophile native to small temporary ponds of Venezuela. Normal embryonic development of A. limnaeus is segmented into up to three stages of metabolic depression (diapause), and both developing and diapausing embryos can survive long bouts of the complete absence of oxygen (anoxia) by using anaerobic metabolic pathways. While there has been much focus on how mutations in DNA drive evolution, environmental stress can cause heritable changes to histone post-translational modifications (hPTMs) in multiple species. However, this evolutionary role of hPTMs has never been studied in A. limnaeus. Additionally, the possible evolutionary role of extracellular …


Annual Killifish: Eye Development And Retinal Cell Regeneration, Carmen Z. Rodriguez May 2024

Annual Killifish: Eye Development And Retinal Cell Regeneration, Carmen Z. Rodriguez

Student Research Symposium

Vertebrate eye development is highly conserved. Current models have allowed the understanding of gene expression patterns that support eye development, but lack the context of extreme environmental conditions that challenge these fundamental programs. Typical vertebrate life spans can be years, but annual killifish, Austrofundulus limnaeus, are able to complete their entire adult lifespan in only weeks. Thus, A. limnaeus is a strong model for age-related macular degeneration. A. limnaeus also experiences embryonic diapause; a period of developmental dormancy. Developing/diapausing embryos of A. limnaeus are resistant to environmental stresses such as hypoxia/anoxia that would cause irreparable damage to vital organs, such …


Dragon Pseudoscorpions Shed Light On Ancient Climate History In The Pacific Northwest, Joshua W. Hootman May 2024

Dragon Pseudoscorpions Shed Light On Ancient Climate History In The Pacific Northwest, Joshua W. Hootman

Student Research Symposium

Pseudoscorpions are an ancient and diverse group of understudied arachnids, and there is much to be learned about their relationships to each other. Pseudoscorpions are one of many leaf-litter dwelling and low dispersing invertebrates that inhabit the forests of the Pacific Northwest. Previous phylogeographic studies of Pacific Northwest taxa have shed light on some of the climatic and geologic events that have shaped the area's flora and fauna. One purpose of this study is to determine if there is similar genetic structuring within the pseudoscorpion populations present in the study area, or if there is even more structure likely influenced …


Construction And Mutagenesis Of Ssv1 Mutants In Extreme Viruses, Lou Ann F. O'Connor, Jono Abshier, Kenneth M. Stedman May 2024

Construction And Mutagenesis Of Ssv1 Mutants In Extreme Viruses, Lou Ann F. O'Connor, Jono Abshier, Kenneth M. Stedman

Student Research Symposium

Archaeal viruses with unique structures such as spindle-shaped virions are found abundantly in extreme environments like geothermal hot springs around the world. Among all spindle-shaped viruses, the model Sulfolobus Spindle-shaped Virus 1 (SSV1) is best studied. Creating the lemon-shaped or spindle-shaped virion structure are two proteins, VP1 as the major capsid protein, and VP3 as the minor capsid protein. The primary structure of VP1 consists of a proteolytic cleavage site at position 66 that is believed to be necessary for virus evolution. Recent studies showed that genetic mutation of the amino acid, glutamate (E) at position 66 in VP1 which …


Role Of Integrase-Pp2a Interaction In Human T-Cell Leukemia Virus Type-1 Replication And Pathogenesis, Shayna Turbin May 2024

Role Of Integrase-Pp2a Interaction In Human T-Cell Leukemia Virus Type-1 Replication And Pathogenesis, Shayna Turbin

Senior Honors Papers / Undergraduate Theses

Human T-cell leukemia virus type-1 (HTLV-1) is an oncogenic retrovirus that causes multiple disorders, including adult T-cell leukemia and HTLV-1-associated myelopathy/tropical spastic paraparesis. HTLV-1 retroviral integrase binds to the regulatory B’56γ subunit of the host cell Protein Phosphatase 2A (PP2A). Integrase contains a highly conserved LxxIxE motif that is essential for binding, which increases integration efficiency and facilitates HTLV-1 hijack of host cell machinery. We aim to understand how mutations introduced in the highly conserved binding site can affect viral particle production and infectivity. We transfected 729B human lymphoblastoid cells and 293T cells with mutant and wildtype virus. Mutations L213A, …


Autism Risk Gene Cul3 Alters Neuronal Morphology Via Caspase-3 Activity In Mouse Hippocampal Neurons, Qiang-Qiang Xia, Anju Singh, Jing Wang, Zhong Xin Xuan, Jeffrey D. Singer, Craig M. Powell May 2024

Autism Risk Gene Cul3 Alters Neuronal Morphology Via Caspase-3 Activity In Mouse Hippocampal Neurons, Qiang-Qiang Xia, Anju Singh, Jing Wang, Zhong Xin Xuan, Jeffrey D. Singer, Craig M. Powell

Biology Faculty Publications and Presentations

Autism Spectrum Disorders (ASDs) are neurodevelopmental disorders (NDDs) in which children display differences in social interaction/communication and repetitive stereotyped behaviors along with variable associated features. Cul3, a gene linked to ASD, encodes CUL3 (CULLIN-3), a protein that serves as a key component of a ubiquitin ligase complex with unclear function in neurons. Cul3 homozygous deletion in mice is embryonic lethal; thus, we examine the role of Cul3 deletion in early synapse development and neuronal morphology in hippocampal primary neuronal cultures. Homozygous deletion of Cul3 significantly decreased dendritic complexity and dendritic length, as well as axon formation. Synaptic spine density significantly …


Measuring The Effects Of Selenium Exposure On Batrachochytrium Dendrobatidis (Bd) Growth In Vivo In Larval American Bullfrogs (Rana Catesbeiana)., Taylor Morrison May 2024

Measuring The Effects Of Selenium Exposure On Batrachochytrium Dendrobatidis (Bd) Growth In Vivo In Larval American Bullfrogs (Rana Catesbeiana)., Taylor Morrison

Honors Thesis

Most amphibians in today’s world are exposed to a variety of environmental stressors. This project’s main objective was to determine any effects of selenium on Batrachochytrium dendrobatidis (Bd) and infection levels in South Dakota amphibians. I selected American bullfrogs (Rana catesbeiana) as they are susceptible to Bd and are found throughout eastern South Dakota. The secondary objective of this project was to measure any impact of Bd and selenium, combined, on growth measures of the frogs. The third objective was to see if survival rates were reduced when amphibians were exposed to Bd and selenium. Tadpoles were collected (n=225) from …


Comparing Oxidative Balance Of Summer And Winter Acclimatized Birds, Olivia R. Gulseth May 2024

Comparing Oxidative Balance Of Summer And Winter Acclimatized Birds, Olivia R. Gulseth

Honors Thesis

The oxidative stress system allows air-breathing animals to deal with the potentially harmful byproducts of metabolism. How this system reacts to the increasing thermoregulatory demands in winter for birds from cold winter climates is poorly understood. The purpose of this project was to compare the oxidative balance of summer (warm acclimatized) and winter (cold acclimatized) phenotypes of overwintering songbirds in South Dakota to determine if there is a significant difference between the seasonal phenotypes and among species. Seasonal differences in oxidative balance were expected due to the increased metabolic costs of elevating metabolism to maintain body temperature during winter. Blood …


The Effect Of Temperature On The Invasive Asian Needle Ant, Kaylee Mulligan '25 May 2024

The Effect Of Temperature On The Invasive Asian Needle Ant, Kaylee Mulligan '25

Biology Student Scholarship

The Asian Needle Ant (Brachyponera chinensis) is an invasive species currently spreading on the Eastern Coast of the United States. They were first reported around the 1930s in Florida and have since migrated to Massachusetts. As an invasive species, this pest originating from Asia has a negative impact on environment ecosystems and other species of ants. Asian Needle Ants displace resident ant colonies, taking over nesting sites by consuming food sources and decreasing the amount of space other ant colonies can use. They are also known to have a sting that contains venom more likely to result in …


Sea Surface Temperature Influence On Tropical Storms And Hurricanes, Elise Leroux '26 May 2024

Sea Surface Temperature Influence On Tropical Storms And Hurricanes, Elise Leroux '26

Biology Student Scholarship

Hurricanes are both dangerous and difficult to predict because of the various factors that influence the size and intensity of storms, where sea surface temperature (SST) is one of the most relevant variables. As temperatures are increasingly rising due to climate change, the effect on storm size, intensity, and frequency is going to be greater. There have been many studies how individual storms are affected, but less so on the overall frequency of hurricanes. This study assesses the number of hurricanes each year in comparison to the SST and the average wind speed of each hurricane. I predict that years …


Gdp Effects On Bottlenose Dolphins Within The Gulf Of Mexico, Kathleen Kelly '24 May 2024

Gdp Effects On Bottlenose Dolphins Within The Gulf Of Mexico, Kathleen Kelly '24

Biology Student Scholarship

Bottlenose dolphins (Tursiops truncatus) are highly sensitive to environmental changes and anthropogenic stressors. Making them important indicators of marine ecosystem health. The Gulf of Mexico sustains diverse marine ecosystems and coastal communities. However, rapid industrialization, urbanization, and coastal development have altered marine habitats and increased anthropogenic pressures on marine wildlife. While various factors contribute to these strandings, the potential influence of socio-economic factors, particularly Gross Domestic Product (GDP) disparities among Gulf Coast counties, remains underexplored. This number (GDP) is influenced by human activities such as fisheries, shipping, and tourism, all of which directly or indirectly could affect marine …


Michigan Water Supply: Analysis Of Health Violations, Gabriela Guzman Reyes '24 May 2024

Michigan Water Supply: Analysis Of Health Violations, Gabriela Guzman Reyes '24

Biology Student Scholarship

The presence of toxins in water sources poses a significant public health challenge. In Michigan, this issue has garnered widespread attention due to its adverse effects on human health and well-being. The contaminants found in water, including but not limited to lead, industrial pollutants, and agricultural runoff, stem from a variety of sources such as aging infrastructure, industrial activities, and agricultural practices. News articles and Government officials have reported the adverse affects and impact toxin exposure has on Michigan residents. However, there is little research examining the relationship between water quality violations and socioeconomic factors like poverty levels. I predict …


The Effect Sea Temperature Has On Coral Reef Health In The Great Barrier Reef, Elizabeth Glasspool '26 May 2024

The Effect Sea Temperature Has On Coral Reef Health In The Great Barrier Reef, Elizabeth Glasspool '26

Biology Student Scholarship

Coral reef bleaching can happen for many different reasons including storms, disease, sediment and salinity changes, and of change in climate. Mass bleaching is typically a cause of increasing sea temperature in a certain area. Mass bleaching typically kills off many different species of coral. This is detrimental to a large portion of biodiversity, especially in a marine atmosphere. In 2016, records show that it is a record high ocean temperature which led to widespread coral bleaching on Australian reefs. This was part of the third global bleaching event declared by the National Oceanic and Atmospheric Administration (NOAA). At the …


The Effect Of Integrated Pest Management On Nutrition Of Bee Collected Pollen, Kaitlyn Bresnahan '25 May 2024

The Effect Of Integrated Pest Management On Nutrition Of Bee Collected Pollen, Kaitlyn Bresnahan '25

Biology Student Scholarship

Honey bees are the world’s most commercially valuable pollinators, and they face many threats. The greatest challenge facing honey bees is Varroa mites, parasitic mites that feed on bees’ fat bodies, killing bees and spreading diseases. While chemical treatments are available to stop the spread of mites, these treatments are insecticides, which are not ideal to put in a hive of insects. A popular organic method of mite management is using drone comb. Drone brood is preferentially chosen by mites for ovipositing and development because of its larger size and longer development time, so removing drone brood can drastically reduce …