Digital Commons Network^™

Abert’S Squirrel Management In Support Of Endangered Mount Graham Red Squirrel Recovery In Arizona, Aaron R. Morehead, Christopher Carillo, Holly Hicks, Wade Sanders, David L. Bergman

United States Department of Agriculture Wildlife Services: Staff Publications

Recovery of the endangered Mount Graham red squirrel (MGRS) will likely be long and challenging. Its limited habitat, isolation to Pinaleño Mountain range, and demographic characteristics restrict its ability to rebound quickly from threats that impact both the squirrel and its habitat. Currently, threats to the MGRS include habitat degradation and loss through high-severity wildfire, fire suppression activities, insect outbreaks, climate change, and human development, and predation, as well as competition with Abert’s squirrels. The most recent wildfire in 2017 impacted over 48,000 acres of already reduced habitat. A critical first step is to protect and manage the remaining population …

Migratory Movements And Home Ranges Of Geographically Distinct Wintering Populations Of A Soaring Bird, Ryo Ogawa, J. Brian Davis, D. Tommy King, L. Wes Burger, Bronson K. Strickland, Marsha A. Sovada, Guiming Wang, Fred L. Cunningham

United States Department of Agriculture Wildlife Services: Staff Publications

Migratory soaring birds exhibit spatiotemporal variation in their circannual movements. Nevertheless, it remains uncertain how different winter environments affect the circannual movement patterns of migratory soaring birds. Here, we investigated annual movement strategies of American white pelicans Pelecanus erythrorhynchos (hereafter, pelican) from two geographically distinct wintering grounds in the Southern and Northern Gulf of Mexico (GOM).We hypothesized that hourly movement distance and home range size of a soaring bird would differ between different geographic regions because of different thermals and wind conditions and resource availability. We calculated average and maximum hourly movement distances and seasonal home ranges of GPS-tracking pelicans. …

Invasive Rodent Responses To Experimental And Natural Hurricanes With Implications For Global Climate Change, Aaron B. Shiels, Gabriela E. Ramírez De Arellano, Laura Shiels

United States Department of Agriculture Wildlife Services: Staff Publications

Hurricanes cause dramatic changes to forests by opening the canopy and depositing debris onto the forest floor. How invasive rodent populations respond to hurricanes is not well understood, but shifts in rodent abundance and foraging may result from scarce fruit and seed resources that follow hurricanes. We conducted studies in a wet tropical forest in Puerto Rico to better understand how experimental (canopy trimming experiment) and natural (Hurricane Maria) hurricane effects alter populations of invasive rodents (Rattus rattus [rats] and Mus musculus [mice]) and their foraging behaviors. To monitor rodent populations, we used tracking tunnels (inked and baited cards …

Improving Efficiency Of Prairie Dog Surveys By Using A Small Copter Drone, Aaron B. Shiels, J. W. Fischer, Danika Spock, Meagan Allira

United States Department of Agriculture Wildlife Services: Staff Publications

Prairie dogs are an accessible and enjoyed wildlife species in Colorado that require occasional surveys because populations can change abruptly due to plague outbreaks or human-induced control. We evaluated the use of small copter drones at four prairie dog colonies on Open Space and Mountain Parks lands, City of Boulder, to determine if this methodology improves efficiency over ground-based survey methods. We counted prairie dogs and burrows using two types of drones (DJI Matric 210 and Autel Evo II) at altitudes 100', 150', and 400' (burrows only). We recorded video and merged still images into orthomosaics prior to having USDA …

Susceptibility Of Wild Canids To Sars-Cov-2, Stephanie M. Porter, Aim E. Hartwig, Helle Bielefeldt-Ohmann, Angela M. Bosco-Lauth, J. Jeffrey Root

United States Department of Agriculture Wildlife Services: Staff Publications

We assessed 2 wild canid species, red foxes (Vulpes vulpes) and coyotes (Canis latrans), for susceptibility to SARS-CoV-2. After experimental inoculation, red foxes became infected and shed infectious virus. Conversely, experimentally challenged coyotes did not become infected; therefore, coyotes are unlikely to be competent hosts for SARS-CoV-2.

Throughout the COVID-19 pandemic, multiple instances of natural infections with SARS-CoV-2 have been reported in pet dogs, likely after exposure to an infected human (1–3). Domestic dogs appear to be minimally susceptible to SARS-CoV-2, as indicated by experimental inoculations resulting in reverse transcription PCR–positive samples and low titer antibody responses but no clinical …

Exploring The Value Of A Global Gene Drive Project Registry, Riley I. Taitingfong, Antoinette J. Piaggio, Cinnamon S. Bloss, Et Al.

United States Department of Agriculture Wildlife Services: Staff Publications

Recent calls to establish a global project registry before releasing any gene-drive-modified organisms (GDOs) have suggested a registry could be valuable to coordinate research, collect data to monitor and evaluate potential ecological impacts, and facilitate transparent communication with community stakeholders and the general public. Here, we report the results of a multidisciplinary expert workshop on GDO registries convened on 8–9 December 2020 involving 70 participants from 14 countries. Participants had expertise in gene drive design, conservation and population modeling, social science, stakeholder engagement, governance and regulation, international policy, and vector control; they represented 45 organizations, spanning national and local governmental …

Updated Threshold Dose-Distribution Data For Sesame, Paul J. Turner, Magdalena Gretzinger, Nandinee Patel, Helen A. Brough, R. Sharon Chinthrajah, Motohiro Ebisawa, Arnon Elizur, Jennifer J. Koplin, Rachel L. Peters, Natasha Purington, Anna Nowak-Wegrzyn, Sarah Saf, Hugh A. Sampson, Joost Westerhout, W. Marty Blom, Joseph L. Baumert, Geert F. Houben, Benjamin C. Remington

Department of Food Science and Technology: Faculty Publications

Sesame is classified as a “major” food allergen for which mandatory disclosure is required. Understanding reaction thresholds and how these vary within the allergic population is crucial in providing appropriate dietary advice to patients, providing guidance to the food industry, and informing dosing regimens for oral food challenges (FC). However, the largest data series used to derive a threshold dose-distribution for sesame included blinded challenge data from just 40 individuals.¹ Data from low-dose, open FC can be used to supplement that from blinded FC, reducing uncertainty in estimating threshold dose-distributions for allergenic foods which otherwise lack sufficient data.^{2 …}

Genomic Approaches To Uncovering The Coevolutionary History Of Parasitic Lice [Review], Kevin P. Johnson

Harold W. Manter Laboratory of Parasitology: Library Materials

Next-generation sequencing technologies are revolutionizing the fields of genomics, phylogenetics, and population genetics. These new genomic approaches have been extensively applied to a major group of parasites, the lice (Insecta: Phthiraptera) of birds and mammals. Two louse genomes have been assembled and annotated to date, and these have opened up new resources for the study of louse biology. Whole genome sequencing has been used to assemble large phylogenomic datasets for lice, incorporating sequences of thousands of genes. These datasets have provided highly supported trees at all taxonomic levels, ranging from relationships among the major groups of lice to those among …

Invasion Of Plant Communities, Stephen L. Young, Sarah Kimball, Stephen J. Novak

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Due to numerous human activities, organisms have been transported and either accidentally or deliberately introduced all around the globe. Biological invasions are now considered to be one of the main drivers of global change because many invasive plants have severe ecological, economic, and health consequences. Thus, there is an ever-growing need to better understand invasions to determine how specific plant species are able to establish in communities and, in many cases, expand their range. Here, we describe the invasion process and how it contributes to the invasion of plant communities. We present an invasion-factor framework (IFF) model that uses three …

Predicting Spatial-Temporal Patterns Of Diet Quality And Large Herbivore Performance Using Satellite Time Series, Sean P. Kearney, Lauren M. Porensky, David J. Augustine, Justin D. Derner, Feng Gao

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Adaptive management of large herbivores requires an understanding of how spatial-temporal fluctuations in forage biomass and quality influence animal performance. Advances in remote sensing have yielded information about the spatial-temporal dynamics of forage biomass, which in turn have informed rangeland management decisions such as stocking rate and paddock selection for free-ranging cattle. However, less is known about the spatial-temporal patterns of diet quality and their influence on large herbivore performance. This is due to infrequent concurrent ground observations of forage conditions with performance (e.g., mass gain), and previously limited satellite data at fine spatial and temporal scales. We combined multi-temporal …

Comparison Of Stationary And Mobile Canopy Sensing Systems For Irrigation Management Of Maize And Soybean In Nebraska, Sandeep Bhatti, Derek M. Heeren, Susan A. O’Shaughnessy, Steven R. Evett, Mitchell S Maguire, Suresh Pradhyun Kashyap, Christopher M. U. Neale

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Accurate knowledge of plant and field characteristics is crucial for irrigation management. Irrigation can potentially be better managed by utilizing data collected from various sensors installed on different platforms. The accuracy and repeatability of each data source are important considerations when selecting a sensing system suitable for irrigation management. The objective of this study was to compare data from multispectral (red and near-infrared bands) and thermal (long wave thermal infrared band) sensors mounted on different platforms to investigate their comparative usability and accuracy. The different sensor platforms included stationary posts fixed on the ground, the lateral of a center pivot …

Review Of Loon Lessons: Uncommon Encounters With The Great Northern Diver, By James D. Paruk, Kristin Bianchini

The Prairie Naturalist

Gavia immer Brunnich (Common Loon) is a bird that has captivated bird watchers, wildlife enthusiasts, campers, cottagers, and others interested in the natural world for centuries. The loon also features prominently in Native American mythology. For many, the loon symbolizes the wildness of the north, and it is often used as a sentinel of lake health. Indeed, the Common Loon has inspired a wealth of literature, both scientific and popular, describing this species’ ecology, behavior, and fitness in the face of environmental changes. To this literature, Loon Lessons: Uncommon Encounters with the Great Northern Diver adds a complete and accurate …

Botchan, Natsume Sōseki, Yasotaro Morri , Trans.

Zea E-Books Collection

This English translation of 坊っちゃん (1906) was published in Tokyo by Ogawa Seibundo in 1918. It is a first-person narrative of a young man’s two-month tenure as assistant mathematics teacher at a provincial middle school in 1890s Japan. A native son of Tokyo, with all its traits and prejudices, he finds life in a narrow country town unappealing — with its dull and mischievous students, scheming faculty, bland diets, stifling rules, and gossipy inhabitants. Impulsive, combative, committed to strict ideals of honesty, honor, and justice, he is quickly enmeshed in the strategems of the head teacher, “Red Shirt.” His sufferings …

Can Gdp Be Predictive Of Fertility Rates In Sweden?, Hannah Coleman

Honors Program: Senior Projects (Public)

Fertility rates in a country vary and can be influenced by numerous different aspects of an individual’s life and the society in which they live. One aspect that may influence fertility rates at the national level is the gross domestic product (GDP). GDP is an indicator of a country’s economic productivity. Because fertility is linked to both economic development and individual resources, GDP may be a useful indicator of fertility rates. If so, knowing or predicting GDP could be used to project the fertility rates of a population years into the future. To determine if a reasonable connection between GDP …

Effects Of Hearing Aid Amplification On The Ability Of Individuals With Hearing Loss To Perceive Spectral Information, Angela Huebert, Marc Brennan

Honors Program: Senior Projects (Public)

Individuals with sensorineural hearing loss often struggle to understand speech even with the use of hearing aids; simply making sounds louder is not enough. Listeners decode various speech sounds with the help of spectral information, but how hearing aid amplification affects individuals’ ability to perceive those cues is not currently well understood. Altering the way hearing aids are programmed to provide amplification can potentially improve the ability of listeners with sensorineural hearing loss to access spectral information. The purpose of this study was to quantify the effects that hearing aid amplification has on the perception of spectral cues. Outcomes could …

“One Bug, Two Bug, Good Bug, Bad Bug”, Ivy Grob

Department of Entomology: Distance Master of Science Projects

Integrated Pest Management (IPM) is a holistic strategy for the management of pest species. It is a framework that relies on scientifically informed decisions to identify and remediate a pest problem in a way that minimizes harm to the environment, human health, and the economy (Dara, 2019). The term pest is broadly defined not just as a nuisance, but as any organism that has detrimental effects to a resource or public health and that exists at a population level that exceeds a threshold of economic damage. This encompasses invertebrates (such as insects, nematodes, and mites), vertebrates, plant pathogens, diseases, and …

The Separation Of Legislative Powers In The Initiative Process, Anthony Johnstone

Nebraska Law Review

Direct democracy cannot implement itself. From Nebraska’s introduction of a state law authorizing the initiative at the local level in 1897,1 through the first constitutional amendments authorizing state-wide initiative processes in several states at the turn of the Twentieth Century, and subsequent efforts to expand the initiative power to approximately half the states,2 legislatures must share the legislative power with the people in states that provide the initiative. After the initial allocation of legislative power to initiative processes, usually through relatively detailed constitutional provisions, state legislatures become responsible for supporting the initiative power. In authorizing initiatives, state constitutions also authorize …

The Hijacking: The Remnants Of Morrissey-Wolff Due Process In Solitary Confinement After Sandin V. Conner, Russell E. Lovell Ii

Nebraska Law Review

Fifty years ago, in 1972, the United States Supreme Court, in an opinion by its new Chief Justice Warren Burger, issued a landmark prisoners’ rights decision in Morrissey v. Brewer.1 It involved the constitutionality of a parole board’s revocation of paroles without a hearing, an issue that I had considerable involvement in during my law Legal Services Organization (LSO) of Indianapolis—including coauthoring an amicus curiae brief on behalf of Morrissey while the case was pending before the Supreme Court. The fiftieth anniversary of the Morrissey decision has provided the occasion to write a retrospective on the historic decision and …

Replicating Or Franchising A Stem Afterschool Program Model: Core Elements Of Programmatic Integrity, Nikolaus Stevenson, Amie S. Sommers, Neal Grandgenett, William Tapprich, Julia Mcquillan, Michelle Phillips, Rachael Jensen, Christine Cutucache

Department of Sociology: Faculty Publications

Background: Designed in 2012 with a first implementation in 2013, NE STEM 4U is a professional development program for post-secondary students/undergraduates, and serves as a source of outreach, content knowledge generation, and STEM literacy for youth in grades kindergarten through 8th grade (ages 5–14). The model empowers post-secondary students as facilitators of inquiry-based learning within the context of an out-of-school time program. This study investigated the potential for replicating or ‘franchising’ this model by evaluating on the following: (1) Is the model replicable? And, if so, (2) what core elements are necessary for program fidelity? And (3) is there …

The Relationship Between College Student Characteristics And Reporting Sexual Assault Experiences On Two Different Scales, Kimberly Tyler, Colleen M. Ray

Department of Sociology: Faculty Publications

Though high rates of sexual assault are found on college campuses, prevalence rates between studies can vary considerable by gender, sexual orientation, and other student characteristics. Thus, it is unknown whether these are “true” differences for such characteristics or if there are methodological differences to consider. As such the current study examined whether student characteristics including gender, race, sexual orientation, sexual attraction, Greek affiliation, and relationship status are uniquely associated with reporting on two different sexual assault scales. Data were gathered from 783 college students in 2019–2020 at a large Midwestern university. Results revealed that the two different scales consistently …

Familial And Individual Risk Markers For Physical And Psychological Dating Violence Perpetration And Victimization Among College Students, Meagan Kunitzer, Kimberly Tyler, Leslie Gordon Simons

Department of Sociology: Faculty Publications

Dating violence (DV) is a prominent problem among college students that can result in harmful physical and mental health outcomes. Though much research has focused on physical DV, fewer studies have examined psychological DV. As such, the current paper compared early/familial risk markers (e.g., child physical abuse, witnessing parental violence, and maternal relationship quality) and individual risk markers (e.g., alcohol use, marijuana and prescription drug use) for physical and psychological DV among college students. Data were gathered at two large public universities using pencil and paper surveys (N = 1,482). Bivariate results revealed more risk markers for men (e.g., …

Your Best Estimate Is Fine. Or Is It?, Jerry Timbrook, Kristen Olson, Jolene D. Smyth

Department of Sociology: Faculty Publications

Providing an exact answer to open-ended numeric questions can be a burdensome task for respondents. Researchers often assume that adding an invitation to estimate (e.g., “Your best estimate is fine”) to these questions reduces cognitive burden, and in turn, reduces rates of undesirable response behaviors like item nonresponse, nonsubstantive answers, and answers that must be processed into a final response (e.g., qualified answers like “about 12” and ranges). Yet there is little research investigating this claim. Additionally, explicitly inviting estimation may lead respondents to round their answers, which may affect survey estimates. In this study, we investigate the effect of …

“Are You …”: An Examination Of Incomplete Question Stems In Self-Administered Surveys, Nestor Hernandez, Kristen Olson, Jolene D. Smyth

Department of Sociology: Faculty Publications

Questionnaire designers are encouraged to write questions as complete sentences. In self-administered surveys, incomplete question stems may reduce visual clutter but may also increase burden when respondents need to scan the response options to fully complete the question. We experimentally examine the effects of three categories of incomplete question stems (incomplete conversational, incomplete ordinal, and incomplete nominal questions) versus complete question stems on 53 items in a probability webmail survey. We examine item nonresponse, response time, selection of the first and last response options, and response distributions. We find that incomplete question stems take slightly longer to answer and slightly …

U.S. State Policy Contexts And Physical Health Among Midlife Adults, Blakelee R. Kemp, Jacob M. Grumbach, Jennifer Karas Montez

Department of Sociology: Faculty Publications

This study examines how state policy contexts may have contributed to unfavorable adult health in recent decades. It merges individual-level data from the 1993–2016 Behavioral Risk Factor Surveillance System (n=2,166,835) with 15 state-level policy domains measured annually on a conservative to liberal continuum. We examined associations between policy domains and health among adults ages 45–64 years and assess how much of the associations is accounted by adults’ socioeconomic, behavioral/lifestyle, and family factors. A more liberal version of the civil rights domain was associated with better health. It was disproportionately important for less-educated adults and women, and its association with adult …

Examining The Influence Of Political Affiliation And Orientation On Political Tolerance, Christopher R. H Garneau, Philip Schwadel

Department of Sociology: Faculty Publications

Political identities are strongly associated with political tolerance. Specifically, previous research shows that American liberals report higher levels of tolerance toward marginalized groups than conservatives. Political orientation, however, varies more among Democrats than Republicans, which might mean that Democrats are relatively diverse in their levels of political tolerance. In this article, the authors ask how the association between political orientation and political tolerance varies across political parties. Using General Social Survey data, the authors find that tolerance is highest among liberals, followed by moderates and conservatives. Regression models with interactions between party and orientation demonstrate that political orientation is consequential …

Substance Use, Injection Risk Behaviors, And Fentanyl‑Related Overdose Risk Among A Sample Of Pwid Post‑Hurricane Maria, Roberto Abadie, Manuel Cano, Patrick Habecker, Camila Gelpí‑Acosta

Department of Sociology: Faculty Publications

Background: While natural disasters like hurricanes are increasingly common, their long-term effects on people who inject drugs are not well understood. Although brief in duration, natural disasters can radically transform risk environments, increasing substance use and drug-related harms.

Methods: Based on a study of people who inject drugs (PWID) and injection risk behaviors in rural Puerto Rico, the present study uses data from two different phases of the parent study. Data for 110 participants were collected from December 2015 to January 2017, soon before Hurricane Maria landed in September 2017; the 2019 phase, in the aftermath of the hurricane, included …

Social Isolation, Residential Stability, And Opioid Use Disorder Among Older Medicare Beneficiaries: Metropolitan And Non-Metropolitan County Comparison, Tse-Chuan Yang, Carla Shoff, Seulki Kim

Department of Sociology: Faculty Publications

Research has shown that the prevalence of opioid use disorder (OUD) may rise substantially as society ages, but this issue receives the least attention in the literature. To address this gap, this study utilizes county-level data from multiple data sources (1) to investigate whether social isolation is associated with OUD prevalence among older Medicare beneficiaries, (2) to examine whether and how residential stability moderates the association between social isolation and OUD prevalence in US counties, and (3) to determine if there are any differences in these associations between metropolitan and nonmetropolitan counties. The results show that social isolation is a …

(Re)Turning To Freirean Philosophy In Preparing Content Teachers To Work With Multilingual Students, Kara Viesca, Peiwen Wang, Brandon Heinz, Alexa Yunes-Koch

Department of Teaching, Learning, and Teacher Education: Faculty Publications

In 2019, Bettina Love published a call for abolitionist teaching, an effort for educational freedom and racial justice. In her work, she centered the role of theory in teaching calling it a "North Star." She suggested that theory provides teachers a "steadfast tool" that explains the experiences of people minoritized due to racism, sexism, ableism, linguicism, etc., as well as provides language for and knowledge about intersectional issues of injustice. Love literally calls theory a "practical guide" as well as a "location for healing" (Love, 2019, p. 132).

The work of Paulo Freire has long served as the kind of …

Research Team As Methodology: The Value Of Pluri-National Research Teams For Studying Education And Migration., Edmund T. Hamann, Betsabé Román, Juan Sánchez García, Víctor Zúñiga

Department of Teaching, Learning, and Teacher Education: Faculty Publications

Research team membership should be understood as a prospective dimension of research design. When the phenomenon to be examined is pluri-national – i.e., involving more than one country – as has been our case for more than two-decades of consideration of the educations of transnationally mobile children and youth, it follows that much can be gained by organizing a research team that is also pluri-national. Here, we suggest ways that our team’s border-spanning composition has supported our efforts to pursue empirical questions, like who, where, and how many. It has also allowed us to consider perception questions regarding how transnational …

Seeking Clarity In Murky Waters: Nuances Of Equity And Social Justice From A Teacher Perspective, Elaine J. Chan

Department of Teaching, Learning, and Teacher Education: Faculty Publications

In this study, I examined interactions between an English teacher and her students to illustrate ways in which issues of equity and social justice may play out in nuanced ways in the implementation of school curriculum in a diverse, Midwestern high school. These stories of classroom teacher and student experiences reveal complexities of how equity and social justice might unfold for students, and be understood by a teacher as she works with her students, to build a body of “teacher knowledge” (Clandinin and Connelly, 1996) that grows as the teacher gains experience. Examining complexities of “teacher knowledge” as a classroom …