Digital Commons Network^™

Contrasting Effects Of Climate Warming On Hosts And Parasitoids: Insights From Rocky Mountain Aspen Leaf Miners And Their Parasitoids, Alisha A. Shah, Emily Hamant, Juan G. Rubalcaba, Beau Larkin, Andrew A. Forbes, H. Arthur Woods

Aspen Bibliography

Because temperature has pervasive effects on biological rates, climate warming may alter the outcomes of interactions between insect hosts and their parasitoids, which, for many host species, constitute the single largest source of mortality. Despite growing interest in parasitoid-host responses due to climate change, there are few empirical tests of thermal tolerance differences between non-model lepidopteran hosts and their parasitoids and almost none from mountain ecosystems where warming is occurring more rapidly. We examined the thermal ecology of a host–parasitoid interaction in the Rocky Mountains using the wild populations of the aspen leaf miner (Phyllocnistis populiella) and a …

Goose Herbivory Effects On Early-Stage Litter Decomposition In Coastal Alaskan Wetlands, Taylor Saunders, Jaron Adkins, Trisha B. Atwood, Karen H. Beard

Wildland Resources Faculty Publications

Aims

Herbivores create large differences in litter decomposition rates, but identifying how they do this can be difficult because they simultaneously influence both biotic and abiotic factors. In the Yukon-Kuskokwim (Y-K) River Delta in western Alaska, geese are dominant herbivores in wet-sedge meadows, where they create ‘grazing lawns’ that have nutrient-rich litter and an open habitat structure. To understand how geese affect decomposition, we tested the effects of litter quality and habitat type on litter decomposition over one year.

Methods

We performed a litter bag study in which we collected two litter types representing grazed and ungrazed vegetation conditions (high …

Info-Cels: Informative Saliency Map-Guided Counterfactual Explanation For Time Series Classifications, Peiyu Li, Omar Bahri, Pouya Hosseinzadeh, Soukaïna Filali Boubrahimi, Shah Muhammad Hamdi

Computer Science Student Research

As the demand for interpretable machine learning approaches continues to grow, there is an increasing necessity for human involvement in providing informative explanations for model decisions. This is necessary for building trust and transparency in AI-based systems, leading to the emergence of the Explainable Artificial Intelligence (XAI) field. Recently, a novel counterfactual explanation model, CELS, has been introduced. CELS learns a saliency map for the interests of an instance and generates a counterfactual explanation guided by the learned saliency map. While CELS represents the first attempt to exploit learned saliency maps not only to provide intuitive explanations for the reason …

Draft Genome Data Including Functional Annotation Of An Emerging Fungal Pathogen (Neodothiora Populina) Causing A Canker Disease Of Trembling Aspen In Interior Alaska, Ursel M. E. Schütte, Mace Wages, Aaron Buechlein, Jorda P. Kovash, Danielle C. Wrenn, Tereza Smrhova, Andrea Zubrova, Doug B. Rusch, Loretta M. Winton, Gerard C. Adams, Roger W. Ruess, Mary Beth Leigh, Devin M. Drown

Aspen Bibliography

Neodothiora populina is a black yeast-like fungus in the family Dothioraceae. It causes an aggressive canker disease of trembling aspen that results in widespread mortality of aspen across the boreal forest of Interior Alaska. Here we report a high-quality draft genome including functional annotation of this emerging fungal pathogen based on Oxford Nanopore Technologies long-read sequences. Our initial genome assembly totaled 23,960,169 bp and contained 18 contigs, and we identified 7,343 genes. This resource announcement provides new genomic data that are useful long term for improving our understanding of forest health in Alaska.

Box Elder County - Countywide Water Master Plan, Quinn Dance

Spring Runoff Conference

Box Elder County Water Master Plan.

Project Background: 

Pre-Project Planning 

• Box Elder County General Plan Update 
• Steering Committee Organization 

Utah Water Research Lab, David Tarboton

Spring Runoff Conference

The concept of a dedicated water research laboratory evolved over years, with significant contributions from Vaughn E. Hansen, Dean F. Peterson, and George D. Clyde. The UWRL represents the culmination of a long-held vision at USU to advance water research.

Water Rights Update, Teresa Wilhelmsen

Spring Runoff Conference

State Engineer's Update:

2024-2025 Strategic Action Plan

2024 Updates by functional section:

• Adjudication
• Applications & Records
• Dam Safety & Stream Alterations
• Data Services
• Field Services
• Technical Services

Great Salt Lake: What’S Next?, Brian Steed

Spring Runoff Conference

Water security is key to living in the West.

Machine Learning Shows A Limit To Rain-Snow Partitioning Accuracy When Using Near-Surface Meteorology, Keith S. Jennings, Meghan Collins, Benjamin J. Hatchett, Anne Heggli, Nayoung Hur, Sonia Tonino, Anne W. Nolin, Guo Yu, Wei Zhang, Monica M. Arienzo

Plants, Soils, and Climate Faculty Publications

Partitioning precipitation into rain and snow with near-surface meteorology is a well-known challenge. However, whether a limit exists to its potential performance remains unknown. Here, we evaluate this possibility by applying a set of benchmark precipitation phase partitioning methods plus three machine learning (ML) models (an artificial neural network, random forest, and XGBoost) to two independent datasets: 38.5 thousand crowdsourced observations and 17.8 million synoptic meteorology reports. The ML methods provide negligible improvements over the best benchmarks, increasing accuracy only by up to 0.6% and reducing rain and snow biases by up to -4.7%. ML methods fail to identify mixed …

Canada Thistle (Cirsium Arvense) Identification And Control, Caitlin Henderson, Robert Nelson Schaeffer, Corey Ransom

All Current Publications

Cirsium arvense is an invasive perennial weed adaptable to a wide range of habitats. Since its arrival in North America in the 1600s, it has spread throughout much of the country. It has become prevalent in rangelands and disturbed areas in the Intermountain West, displacing native plant species, reducing crop yields, and affecting pasture quality. This fact sheet outlines how to identify Canada thistle, its life cycle, and how to manage it through cultural, mechanical, biological, and chemical control.

The Utah Statesman, March 24, 2025, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

Genomic-Transcriptomic Analysis Identifies The Syrian Hamster As A Superior Animal Model For Human Diseases, Chuchu Wang, Zhenguo Cheng, Jinxin Miao, Xia Xue, Yunshu Dong, Li Zhao, Haoran Guo, Jianyao Wang, Zhizhong Wang, Shuangshuang Lu, Guangming Fang, Ying Peng, Yafei Zhai, Zhongxian Zhang, Dongling Gao, Zhimin Wang, Pengju Wang, Lirong Zhang, Louisa S. Chard Dunmall, Jun Wang, Wenxue Tang, Xiaowei Li, Zhongren Ding, Xiaoyan Zhao, Ling Li, Nicholas R. Lemoine, Zhongde Wang, Daniel Tonge, Wenjie Tan, Jianzeng Dong, Yaohe Wang

Animal, Dairy, and Veterinary Science Faculty Publications

Background The Syrian hamster (Mesocricetus auratus) has shown promise as a human diseases model, recapitulating features of different human diseases including COVID-19. However, the landscape of its genome and transcriptome has not been systematically dissected, restricting its potential applications.

Results Here we provide a complete analysis of the genome and transcriptome of the Syrian hamster and found that its lineage diverged from that of the Chinese hamster (Cricetulus griseus) around 29.4 million years ago. 21,387 protein-coding genes were identified, with 90.03% of the 2.56G base pair sequence being anchored to 22 chromosomes. Further comparison of the …

Elevated Extinction Risk In Over One-Fifth Of Native North American Pollinators, Tara Cornelisse, David W. Inouye, Rebecca E. Irwin, Sarina Jepsen, Jonathan R. Mawdsley, Margaret Ormes, Jaret Daniels, Diane M. Debinski, Terry Griswold, John Klymko, Michael C. Orr, Leif Richardson, Nicole Sears, Dale Schweitzer, Bruce E. Young

Biology Faculty Publications

Pollinators are critical for food production and ecosystem function. Although native pollinators are thought to be declining, the evidence is limited. This first, taxonomically diverse assessment for mainland North America north of Mexico reveals that 22.6% (20.6 to 29.6%) of the 1,579 species in the best-studied vertebrate and insect pollinator groups have elevated risk of extinction. All three pollinating bat species are at risk and bees are the insect group most at risk (best estimate, 34.7% of 472 species assessed, range 30.3 to 43.0%). Substantial numbers of butterflies (19.5% of 632 species, range 19.1 to 21.0%) and moths (16.1% of …

Community-Oriented Policing In A Majority-Black Neighborhood: In Search Of A Local Solution To A National Problem, Nasaskyia R. Hicks, Shanada Mcfadden, Natallia Sianko

Transforming Communities

Few issues loom larger today than how the United States can rehabilitate its criminal justice system. Although justified and undoubtedly timely, the national focus often shifts attention away from local, interpersonal, and community processes that shape how criminal justice is administered and experienced differently in communities across the country. Our goal is to contribute to the national conversation on community-oriented policing and social innovation to improve police-community relations and increase public trust in majority-Black neighborhoods. This article offers a call to action for the scientific and policy communities to reflect on effective practices that bring the voices of local stakeholders …

Variable Fire Behavior Causes Greater Bacterial And Fungal Richness, James A. Lutz, Joseph D. Birch

Wildland Resources Faculty Publications

Results of research in forest health and forest futures in Utah.

Key Results

1. Fire reduces microbial richness

Nine years after fire, burned soils had 19 - 31% lower richness, compared to unburned refugia.

2. Pathogens like it hot?

Pathogens made up a larger proportion of burned communities compared to unburned refugia.

3. Unburned refugia communities are tough

Refugia communities had greater resistance to disturbance than burned communities.

Multi-Sensor Integration And Machine Learning For High-Resolution Classification Of Herbivore Foraging Behavior, Bashiri Iddy Muzzo, Kelvyn Bladen, Andres Perea, Shelemia Nyamuryekung’E, Juan J. Villalba

Wildland Resources Student Research

This study classified cows’ foraging behaviors using machine learning (ML) models evaluated through random test split (RTS) and cross-validation (CV) data partition methods. Models included Perceptron, Logistic Regression, Support Vector Machine, KNearest Neighbors, Random Forest (RF), and XGBoost (XGB). These models classified activity states (active vs. static), foraging behaviors (grazing (GR), resting (RE), walking (W), ruminating (RU)), posture states (standing up (SU) vs. lying down (LD)), and posture combinations with rumination and resting behaviors (RU_SU, RU_LD, RE_SU, and RE_LD). XGB achieved the highest accuracy for state classification (74.5% RTS, 74.2% CV) and foraging behavior (69.4% CV). RF outperformed XGB in …

Short Duration Relationship And Marriage Education (Rme) During Covid-19: Outcomes And Future Directions, Pamela B. Payne, Naomi Brower, Melanie Jewkes

Transforming Communities

Abstract

COVID-19 reshaped short duration relationship marriage education (RME), requiring that previously in person programs, including the Utah Marriage Celebration (UMC) move to remote formats. It is critical that outcomes of such transitions are evaluated and assessed. Marriage Celebration 2021 included 348 participants who responded after participating in the virtual event and 148 participants who responded to a one month follow up. Results indicate that like prior Marriage Celebration events, participants indicated their perceived relationship knowledge increased. Commitment to change was evaluated for the first time and showed significant results related to age and issues being covered. Implications for RME …

Increasing Electric Vehicle Charger Availability With A Mobile, Self-Contained Charging Station, Robert Serrano, Arifa Sultana, Declan Kavanaugh, Hongjie Wang

Electrical and Computer Engineering Student Research

As the transition to sustainable transportation has accelerated with the rise of electric vehicles (EVs), ensuring drivers have access to charging to maximize the electric miles driven is critical to lowering carbon emissions in the transportation sector. Limited charging station capacity and poor reliability, especially during peak travel times, long distance travels, holidays, and events, have hindered the adoption of EVs and threaten the progress toward reducing greenhouse gas emissions. Adaptive, flexible deployment strategies combined with innovative approaches integrating mobility and renewable energy are essential to address these systemic challenges and bridge the current infrastructure gap. To address these challenges, …

Home, Health, Community, & Allyship: Utahns’ Awareness, Understanding, And Attitudes, Susan R. Madsen

Marketing and Strategy Faculty Publications

During the fall of 2023, Utah Women & Leadership Project (UWLP) researchers conducted a statewide study to establish a baseline for public perceptions related to the awareness, understanding, and attitudes about challenges that Utah women and girls face. In early 2024, we published 20 short research summaries that shared the results of this comprehensive study. Then, in the fall of 2024, we administered the survey, with slight refinements, around the state of Utah. We now share the results of the 2024 data by releasing six white papers; this is the fifth in the series.

Overall, this comprehensive study was designed …

Bryce Canyon Aspen: Recent Trends, Future Actions, Paul C. Rogers

Aspen Bibliography

In cooperation with Bryce Canyon National Park, we undertook a survey of quaking aspen (Populus tremuloides Michx.) conditions throughout the Park with the intention of better understanding conditions and prescribing corrective measures where needed. There are clear disparities within the Park between sustainable aspen conditions and failing stands. Based on condition of mature trees, but most importantly regeneration and recruitment of juvenile stems, most aspen forests within Bryce Canyon are in poor condition. Aspen recruitment—generally sapling-sized trees that have survived browsing ungulates—is the most important metric of future stand resilience and here we found 83% of all aspen sample …

Fact Sheet: Methamphetamine, Aaron Hunt, Gabriela Murza, Jenna Hawks, Alyssa Ferrin

All Current Publications

Methamphetamine, or meth, is a powerful stimulant that speeds up the central nervous system, causing increases in heart rate, blood pressure, and how fast the body uses energy. This fact sheet explains how meth is habit-forming and addictive and what it does to your body. It also explains overamping and responding to such an emergency.

Herbivory In A Low Arctic Wetland Alters Intraspecific Plant Root Traits With Consequences For Carbon And Nitrogen Cycling, Emily A. Chavez, Jaron Adkins, Bonnie G. Waring, Karen H. Beard, Ryan T. Choi, Lindsay Miller, Taylor Saunders, Trisha B. Atwood

Wildland Resources Faculty Publications

1. High latitude wetlands are ecologically important ecosystems due to their large carbon (C) storage capacity and because they serve as breeding and nesting habitat for large populations of migratory birds. Goose herbivory in wetland meadows affects leaf chemical and morphological traits and also influences soil properties by increasing soil temperature and depositing faeces. Grazing-induced changes to above-ground traits and soil properties impact C cycling, but the influence of grazing on root-mediated C and nitrogen (N) cycling has not been explored.

2. We investigated how goose herbivory in a low-Arctic coastal wetland in western Alaska affected root morphological, physiological and chemical traits …

Fact Sheet: Ketamine, Aaron Hunt, Gabriela Murza, Jenna Hawks, Alyssa Ferrin

All Current Publications

This fact sheet discusses ketamine, which has pain-relieving properties and has gained recent attention for its antidepressant effects. However, as a Schedule III substance, it has a risk of strong psychological and physical dependence. Recreational use can lead to short- and long-term effects on health and risk of overdose and death.

Familiar New Histories: Promenade Theatre And Local Amateur Actors In A Creative Heritage Project, Jayne Gold

Theatre Arts Faculty Publications

Building upon previous work in the creative heritage sector, in this paper I analyse A Time Traveller’s Guide to Theatrical Brecon, a promenade production funded by the National Lottery Heritage Fund, performed on the streets of Brecon in mid Wales, UK in 2021. The performance involved local amateur actors from Brecon Little Theatre and was accompanied by a map and educational resources and workshops for local schools. It brought to life stories from Brecon’s theatre history for its local residents. Brecon Little Theatre members created and performed the promenade performance, creatively engaging with historical material to write, direct, rehearse, …

An Alternative To Biliverdin, Mesobiliverdin Ixα And Mesobiliverdin-Enriched Microalgae: A Review On The Production And Applications Of Mesobiliverdin-Related Products, Naveena Poudyal, Jon Y. Takemoto, Yuan-Yu Lin, Cheng-Wei T. Chang

Chemistry and Biochemistry Student Research

Despite attracting interest for decades due to its anti-inflammatory and antioxidant capabilities, the use of biliverdin IXα (BV) in medicine and agriculture is hampered by uncertain purity and limited availability. A significant amount of effort has been devoted to the production and application of BV, but with limited success. Mesobiliverdin IXα (MBV), a natural BV analog derived from microalgae, offers a path to overcome the limitations of BV. MBV production is scalable, and it can be obtained at high purity. MBV and BV share important structural features (e.g., bridging propionate groups) and both are substrates of biliverdin reductase A (BVRA), …

Lifting-Line Predictions For The Ideal Twist Effectiveness Of Spanwise Continuous And Discrete Control Surfaces, Zachary S. Montgomery, Douglas F. Hunsaker, James J. Joo

Mechanical and Aerospace Engineering Faculty Publications

Modern materials and manufacturing technologies have allowed the construction of morphing wings that are able to continuously vary certain airfoil parameters such as twist, camber, or control surface deflection as a function of span. This work presents a twist effectiveness parameter as a means of comparing the ideal aerodynamic efficiency of spanwise continuous control surfaces (morphing wings) and spanwise discrete control surfaces (standard wings). A numerical algorithm is used to compute the twist effectiveness of both continuous and discrete control-surface designs over a wide range of planform shapes with evenly spaced actuation for inviscid, incompressible flow. Results included here show …

Artificial Intelligence In Research, Erica Finch, Stephanie Western

Library Faculty & Staff Presentations

Has your paper been used to train an AI model? Almost certainly

Artificial-intelligence developers are buying access to valuable data sets that contain research papers – raising uncomfortable questions about copyright.

Utilizing Deep Learning And Object-Based Image Analysis To Search For Low-Head Dams In Indiana, Usa, Brian M. Crookston, Caitlin R. Arnold

Publications

Although low-head dams in the USA provide water supply, irrigation, and recreation opportunities, many are unknown by regulators. Unfortunately, hundreds of drownings occur each decade at these dams from an entrapment current that can form immediately downstream. To explore the ability of deep learning to scan large areas of terrain to identify the locations of low-head dams, ArcGIS Pro and embedded deep learning models for object-based image analysis were investigated. The State of Indiana low-head dam dataset was selected for model training and validation. Aerial imagery (leaf-off conditions) captured from 2016 to 2018 for the nearly 94,000 km² area …

Thriving Hives: Propolis - Harvest And Usage, Brynn Meredith, Teresa Hunsaker, Andree' Walker Bravo

All Current Publications

One of the lesser-known substances produced by honeybees is something called propolis. Propolis is a type of adhesive that bees use to construct their hives and keep unwanted invaders out. Propolis is difficult to collect and process but can be beneficial, as it has many useful applications. This fact sheet addresses harvesting and using propolis.

Hatching And Caring For Chicks, Cory Farnsworth, Jacob Hadfield, Ashley Longmore

All Current Publications

There are many reasons people are interested in raising birds. Most people who desire to start are interested in saving money and becoming more self-sufficient. Many people find excitement in hatching eggs and raising chicks. This fact sheet will help you get started with hatching eggs and raising chicks.