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Theses/Dissertations from 2023

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The Influence of Polystyrene Microplastics on Juvenile Steelhead Trout (Oncorhynchus mykiss), Kaitlyn Marie Baker

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Instructors at a Crossroad: Perceptions of Collaboration and Support Intersect with Intentions to Implement a CURE, Justin Berl

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Comparative Skull Morphology of California Sea Lions (Zalophus californianus) and Steller Sea Lions (Eumetopias jubatus) in the Pacific Northwest and Implications for Hybridization, Ada Iris Garcia Garcia

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Using Biometrics, Behavioral Observations, and Multiple Molecular Techniques to Assess the Impacts of Changes in Temperature and Salinity on the Common Bay Mussel (Mytilus trossulus), Casey Martin

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Resistance to DNA Interstrand Crosslinks in Escherichia coli Arises through Prevention Rather than Repair, Travis Kim Worley

Theses/Dissertations from 2022

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In Sickness and in Health: Parasites of Stranded Pacific Harbor Seals (Phoca vitulina richardii) in Northern Oregon and Southern Washington, Cecily Douglas Bronson

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Urban Nesting Biology, Population Viability and Ecology of the Willow Flycatcher, Empidonax traillii, Stephanie Alexandra Byrne Doorly

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A Multi-Species Study on Several Types of Visitor Effects on the Behavior and Physiology of Animals at the Oregon Zoo, Laurel Berylline Fink

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Climate and Intraspecific Geographic Variation of Nests and Eggs in the Eastern Kingbird Tyrannus tyrannus, Samantha Marie Gillette

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Helminths of Thomomys Species (Rodentia: Geomyidae) of Oregon, Malorri Rene Hughes

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Orthotrichum lyellii as an Active Moss Biomonitor: Examining the Interplay between Ambient PM10, Bulk Deposition and Heavy Metals in an Urban Environment, Scott Bradley Kiel

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A Tale of Two-Hybrids: Investigating the Interactomes of Cullin-Associated Proteins, Elyse Reitter

Theses/Dissertations from 2021

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Mitonuclear Mismatch is Associated with Increased Male Frequency, Outcrossing, and Male Sperm Size in Experimentally-Evolved C. elegans, Brent William Bever

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Testing Functional Variation in Thermal Properties for Antarctic Mosses, Andrew Forrest Clements

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Connecting Environment and Phenotype: Deciphering Mechanisms of Diapause Entry and Exit in the Annual Killifish Austrofundulus limnaeus, Erin Monica Davis

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Mechanisms of Substrate Recognition by the Cul3-based E3 Ligase, Katia Graziella de Oliveira Rebola

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Experiences of Undergraduates and Graduate Teaching Assistants in Biology Course-Based Undergraduate Research Experiences, Emma Crystal Goodwin

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A Bioinformatic and Biochemical Analysis of Cruciviruses, George William Kasun

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Elucidating the Evolution and Function of sRNAs that Facilitate Bacterial Stress Tolerance, Madeline Claire Krieger

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Next Generation Sequencing Identifies Population Structure and Signatures of Local Adaptation in Red Alder (Alnus rubra Bong.), Jacob Brent Loveless

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Exploring miRNA Function and Host Response to Coxiella burnetii Infection, Madhur Sachan

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Nesting Habits of Cavity Nesting Bees and Wasps in Portland, Oregon, Stefanie Kay Steele

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Temperature-induced Activation of the Reproductive Axis through Melatonin-mediated Changes in Thyrotropin, Treven J. Winters

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Microbes on the Mountain: Plant-Microbe Associations and Interactions on Mount St. Helens, Emily Rose Wolfe

Theses/Dissertations from 2020

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Recurrent Formation, Low Levels of Ecological Differentiation, and Secondary Dispersal Facilitate the Establishment and Persistence of Autopolyploids in Eriophyllum lanatum, Nicolas Alexander Diaz

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Morphology, Taxonomy, and Ecological Niche Modeling of the Cochabamba Grass Mouse, Akodon siberiae Myers & Patton, 1989, James George Dunn

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Investigating Dose-Dependent, Multi-Generational, and Strain-Specific Effects of 17α-ethynylestradiol Exposure in Zebrafish (Danio rerio), Decatur Mitochondria Foster

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Biogeography, Morphology, and Systematics of the Mountain Cottontail, Sylvilagus nuttallii (Bachman, 1837), Mammalia: Lagomorpha: Leporidae, Johnnie H. French

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Assessing Well-being of Asian Elephants (Elephas maximus) Through Major Events and Transitions, with Development and Aging, and Husbandry Changes, Sharon Stuart Glaeser

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Battle of the Buttercups: Investigating Hybrid Zone Dynamics in a Ranunculus Species Complex, Jessica Persinger

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Short- and Long-term Impacts of a Deliberative Pedagogy in Introductory Biology and Chemistry Courses, Liz Rain-Griffith

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Sensing Malignancy: Expanding Upon the Nematode Scent Detection Test, Morgan Alexandra Thompson

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From Theory to Practice: Interdisciplinary Science in Undergraduate Education, Brie Tripp

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Energy Stores and Life-History Transitions in Red-Sided Garter Snakes (Thamnophis sirtalis parietalis), Rachel Catharine Wilson

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No Oxygen, No Water: the Unique Physiology of Annual Killifish Embryos Across Development, Daniel Erik Zajic

Theses/Dissertations from 2019

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Avian Dispersal Networks, Metacommunity Structure, and Bryophyte Community Assemblages, Matthew Wojciech Chmielewski

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Isoprene Emission in Polytrichaceae Mosses, Timea Deakova

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Snowy Plover Demography in Oregon, Eleanor Prindiville Gaines

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Use of Two-replisome Plasmids to Characterize How Chromosome Replication Completes, Nicklas Alexander Hamilton

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Parr Going the Distance: How Migratory Difficulty Influences Red Muscle Lipid Storage in Juvenile Oncorhynchus mykiss, Emily Jean Morse

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The Interactive Effect of Temperature and Salinity in the Nile Tilapia (Oreochromis niloticus), Rachel Marie Palmer

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Bone Mineral Density of the Common Bottlenose Dolphin, Tursiops truncatus: a Proposed Model for Monitoring Osteological and Ecosystem Health, James Wright Burrus Powell

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Symbiosis in Archaea: Functional and Phylogenetic Diversity of Marine and Terrestrial Nanoarchaeota and their Hosts, Emily Joyce St. John

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The Influence of Hibernation Temperature on Deiodinase 2 in Red-Sided Garter Snakes (Thamnophis sirtalis parietalis), Kalera Stratton

Theses/Dissertations from 2018

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Impact of Suburban Landscape Features on Gene Flow of the Model Invasive Grass, Brachypodium sylvaticum, Tina Marie Arredondo

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Woodpeckers in the City: Habitat Use and Minimum Area Requirements of Woodpeckers in Urban Parks and Natural Areas in Portland, Oregon, Adam Baz

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The Limitations of DNA Interstrand Cross-link Repair in Escherichia coli, Jessica Michelle Cole

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Water Transport in the Lateral Line Canal of the Intertidal Fish Xiphister mucosus (Girard 1858) and Its Significance to Evaporative Water with Preliminary Observations of the Metabolic Consequences of Water Loss, Whitney Anne Gayer

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Understanding the Impacts of Urbanization on the Avian Community of Portland Oregon and Evaluation of the Portland Oregon Backyard Habitat Certification Program, Andrew Daniel Gibbs

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Comparative Genetic and Genomic Analysis of the Novel Fusellovirus Sulfolobus Spindle-shaped Virus 10, David Andrew Goodman

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Maternal Angiotensinogen Genotype and Fetal Sex Impact Uteroplacental Function and the Developmental Origins of Stress-Induced Hypertension, Jessica Faith Hebert

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Investigating the Role of Genomic Variation in Susceptibility to Environmental Chemicals across Populations, Lindsay Adrian Holden

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Whence and Whither: Acoustic Variability and Biogeography of Tarsiers in North Sulawesi, Olivia Clare Kulander

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Effect of Microbes on the Growth and Physiology of the Dioecious Moss, Ceratodon purpureus, Caitlin Ann Maraist

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Interplay of Transcription Factor E and Spt4/5 During Transcription Initiation in Pyrococcus furiosus, Kimberly Kay Sheffield

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Morphological Correlates and Behavioral Functions of Sound Production in Loricariid Catfish, with a Focus on Pterygoplichthys pardalis (Castelnau, 1855), Monique Renee Slusher

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Accumulation and Transmission Dynamics of a Naturally-Occurring mtDNA Deletion in Caenorhabditis briggsae, Jennifer Anne Sullins

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Completion of DNA Replication in Escherichia coli, Brian Michael Wendel

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Small RNA MgrR Regulates Sensitivity of Escherichia fergusonii to Oxidative Stress, Austin Paul Wright

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Fungal Endophytes in a Seed-Free Host: New Species that Demonstrate Unique Community Dynamics, Brett Steven Younginger

Theses/Dissertations from 2017

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Adaptive Evolution under Favorable and Unfavorable Population Genetic Conditions in Caenorhabditis elegans Nematodes, Stephen Fuller Christy

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The Cul3 Ubiquitin Ligase: an Essential Regulator of Diverse Cellular Processes, Brittney Marie Davidge

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Why Do Animals Do What They Do, When They Do It? Characterizing the Role of the Hypothalamus-Pituitary-Adrenal Axis in Seasonal Life-History Transitions, Catherine Anne Dayger Forbes

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Evolution and Metabolic Potential of Francisella-like Endosymbionts of Ticks, Jonathan Graham Gerhart

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Symbiosis with Nitrogen-fixing Rhizobia Influences Plant Defense Strategy and Plant-predator Interactions, Adrienne Louise Godschalx

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Let the Seeds Fall Where They May: Investigating the Effect of Landscape Features on Fine-Scale Seed Dispersal, Monica R. Grasty

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Expanding Metabolic Diversity of Two Archaeal Phyla: Nanoarchaeota and Korarchaeota, John Forad Kelley

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An Efficient Pipeline for Assaying Whole-Genome Plastid Variation for Population Genetics and Phylogeography, Brendan F. Kohrn

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Uncovering Coxiella burnetii's Pathogenicity by Elucidating its Metabolism and Host Interactions, Jess Annai Millar

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Examination of Human Impacts on the Biodiversity and Ecology of Lichen and Moss Communities, Hannah Marie Prather

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Investigating the Role of Small Noncoding RNAs in Vertebrate Anoxia Tolerance, Claire Louise Riggs

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Transcriptomic Regulation of Alternative Phenotypic Trajectories in Embryos of the Annual Killifish Austrofundulus limnaeus, Amie L. Romney

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Quantifying the Impacts of a Novel Predator: the Distinctive Case of the Oregon Spotted Frog (Rana pretiosa) and the Invasive American Bullfrog (Rana (Aquarana) catesbeiana), Kyle Scott Tidwell

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Predicting Parturition in a Long-Gestating Species: Behavioral and Hormonal Indicators in the Asian Elephant (Elephas maximus), Heather Kelly Velonis

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Intestinal Microbiota Diversity of Pre-Smolt Steelhead (Oncorhynchus mykiss) Across Six Oregon and Washington Hatcheries, Christina Carrell Yildirimer

Theses/Dissertations from 2016

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Sex-Specific Fungal Communities of the Dioicous Moss Ceratodon purpureus, Mehmet Ali Balkan

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Survivorship and Breeding Dispersal Patterns of a Migratory, Socially Monogamous Passerine; the Scissor-tailed Flycatcher (Tyrannus forficatus), Adam John Becker

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Investigating the Effects of 17α-Ethynylestradiol on Mitochondrial Genome Stability, Alicia M. Chivers

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Investigating the Origin and Functions of a Novel Small RNA in Escherichia coli, Fenil Rashmin Kacharia

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Stranding Mortality Patterns in California Sea Lions and Steller Sea Lions in Oregon and Southern Washington, 2006 to 2014, Kessina Lee

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Phylogeography of Two Species of the Genus Apochthonius Chamberlin, 1929, in the Pacific Northwest (Arachnida, Pseudoscorpiones), Brandi Lynn Welch

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Surviving Catastrophe: Resource Allocation and Plant Interactions Among the Mosses of Mount St. Helens Volcano, Trevor David Williams

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Insulin-like Growth Factor Pathway Described in Austrofundulus limnaeus Diapause and Escape Embryos, Steven Cody Woll

Theses/Dissertations from 2015

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The Role of Pyrococcus furiosus Transcription Factor E in Transcription Iniitiation, Robyn Lynn Eustis

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Applying GPS and Accelerometers to the Study of African Savanna (Loxodonta africana) and Asian Elephant (Elephas maximus) Welfare in Zoos, Matthew Robert Holdgate

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A Genetic and Biochemical Analysis of Sulfolobus Spindle-Shaped Virus 1, Eric Alexander Iverson

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Paleological and Ecological Impacts of Virus Silicification, James Robert Laidler

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Neurobiology of Seasonal Life-history Transitions, Ashley Rae Lucas

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Phenotypic and Mutational Consequences of Mitochondrial ETC Genetic Damage, Michael James Lue

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Mechanisms of Adaptation in the Newly Invasive Species Brachypodium sylvaticum (Hudson) Beauv., Gina Lola Marchini

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The Impeccable Timing of the Apple Maggot Fly, Rhagoletis pomonella (Dipetera: Tephritidae), and its Implications for Ecological Speciation, Monte Arthur Mattsson

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Genes Affecting the Repair and Survival of Escherichia coli Following Psoralen-Induced Damage: a DNA Interstrand Crosslinking Agent, Anthonige Vidya Perera

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The Biology of Eastern Kingbirds at Malheur National Wildlife Refuge: Survival, Reproduction, and Testosterone Secretion, Lucas J. Redmond

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Investigations of Larval Pacific Lamprey Entosphenus tridentatus Osmotic Stress Tolerance and Occurrence in a Tidally-Influenced Estuarine Stream, Gregory Shell Silver

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Developmental Mechanisms that Support Genome Stability and Embryonic Survival in Stress-tolerant Embryos of the Annual Killifish Austrofundulus limnaeus, Josiah Tad Wagner

Theses/Dissertations from 2014

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Investigating a Role for the CCAAT/Enhancer-Binding Protein δ in the Developing Zebrafish, Alisha Jennifer Beirl

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The orientation of the Pyrococcus furiosus transcription factor TFB2 in the transcription initiation complex, Arati Bhattarai

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Behavioral Observation and Paternal Investment of Eastern Kingbirds at Malheur National Wildlife Refuge, Christopher Michael Chutter

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The Boiling Springs Lake Metavirome: Charting the Viral Sequence-Space of an Extreme Environment Microbial Ecosystem, Geoffrey Scott Diemer

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Mitochondrial Reactive Oxygen Species (ROS): Which ROS is Responsible for Cardioprotective Signaling?, Anders Olav Garlid