Digital Commons Network^™

Temperature Fluctuation Alters Optimal Predator Community Composition For Anticipated Biological Control, Amanda N. Laubmeier, Nusrat Tabassum, Brigitte Tenhumberg

School of Biological Sciences: Faculty Publications

Alongside pesticides and specialist predators, natural communities of generalist beetle and spider predators play an important role in suppressing agricultural pests. However, the predation pressure of natural communities can be unpredictable. Overall predation pressure is influenced by a dense network of potential intraguild interactions, which are further shaped by species traits and environmental factors. Understanding how these different influences combine to impact pest control is especially important in the context of changing global temperatures. Recent empirical studies have demonstrated that the foraging behavior of arthropod predators is influenced by an interaction between temperature and predator body size. To explore the …

Boundary Spanning In The Context Of Stakeholder Engagement In Collaborative Water Management, Mark E. Burbach, Weston M. Eaton, Jodi L. Delozier

School of Natural Resources: Faculty Publications

Boundary spanners are individuals able to reach across organizational borders to build relationships and interconnections to help better manage complex problems. What is not clear, however, are the skills that allow boundary spanners to cross diverse scales, sectors, and organizations. To address this gap, we use a qualitative case study approach to examine evidence for how boundary spanning skills are implemented in the context of stakeholder engagement for addressing water challenges in agricultural settings. We employ a hybrid deductive-inductive thematic analysis approach to examine interview data collected with 25 stakeholder participants as well as direct observation of engagement behavior. Interview …

Electronic Transport Properties Of Spin-Crossover Polymer Plus Polyaniline Composites With Fe3O4 Nanoparticles, Esha Mishra, Waikiat Chin, Kayleigh A. Mcelveen, Thilini K. Ekanayaka, M. Zaid Zaz, Gauthami Viswan, Ruthi Zielinski, Alpha T. N'Diaye, David Shapiro, Rebecca Lai, Robert Streubel, Peter A. Dowben

Department of Chemistry: Faculty Publications

Adding Fe₃O₄ nanoparticles to composites of [Fe(Htrz)₂(trz)](BF₄) spin-crossover polymer and polyaniline (PANI) drives a phase separation of both and restores the molecular structure and cooperative effects of the spin-crossover polymer without compromising the increased conductivity gained through the addition of PANI. We observe an increased on-off ratio for the DC conductivity owing to an enlarged off state resistivity and a 20 times larger AC conductivity of the on state compared with DC values. The Fe₃O₄ nanoparticles, primarily confined to the [Fe(Htrz)₂(trz)](BF₄) phase, are ferromagnetically coupled to …

Nationwide Assessment Of Leadership Development For Graduate Students In The Agricultural Plant Sciences, Karen Ferreira Da Silva, Ella Burnham, Joe Louis, Douglas Golick, Sydney E. Everhart

Department of Plant Pathology: Faculty Publications

Leadership development is a universally important goal across the agricultural plant science disciplines. Although previous studies have identified a need for leadership skills, less is known about leadership skill development in graduate programs. To address this, we constructed a mixed-method study to identify the most significant graduate school leadership experiences of scientists in the agricultural plant science disciplines. The survey was deployed to 6,728 people in the U.S. and received 1,086 responses (16.1% response rate). The majority of respondents reported that they were from one of the major agricultural states and employed at one of the agricultural plant science related …

Identification And Biosynthetic Study Of The Siderophore Lysochelin In The Biocontrol Agent Lysobacter Enzymogenes, Amanda Lynn Miller, Shanren Li, Catherine D. Eichhorn, Yongbiao Zheng, Liangcheng Du

Liangcheng Du Publications

Lysobacter is a genus of bacteria emerging as new biocontrol agents in agriculture. Although iron acquisition is essential for the bacteria, no siderophore has been identified from any Lysobacter. Here, we report the identification of the first siderophore, N1,N8-bis(2,3-dihydroxybenzoyl)spermidine (lysochelin), and its biosynthetic gene cluster from Lysobacter enzymogenes. Intriguingly, the deletion of the spermidine biosynthetic gene encoding arginine decarboxylase or SAM decarboxylase eliminated lysochelin and the antifungals, HSAF and its analogues, which are key to the disease control activity and to the survival of Lysobacter under oxidative stresses caused by excess iron. The production of …

Role Of Social Determinants Of Health In Differential Respiratory Exposure And Health Outcomes Among Children, Jagadeesh Puvvula, Jill A. Poole, Yeongjin Gwon, Eleanor G. Rogan, Jesse E. Bell

School of Natural Resources: Faculty Publications

Background Attributes defining the Social Determinants of Health (SDoH) are associated with disproportionate exposures to environmental hazards and differential health outcomes among communities. The dynamics between SDoH, disproportionate environmental exposures, and differential health outcomes are often specific to micro-geographic areas.

Methods This study focused on children less than 20 years of age who lived in Douglas County, Nebraska, during 2016–2019. To assess the role of SDoH in differential exposures, we evaluated the association between SDoH metrics and criteria pollutant concentrations and the association between SDoH and pediatric asthma exacerbations to quantify the role of SDoH in differential pediatric asthma outcomes. …

Panarchy Theory For Convergence, Shana M. Sundstrom, David G. Angeler, Jesse Bell, Michael J. Hayes, Jennifer Hodbod, Babak Jalalzadeh‑Fard, Rezaul Mahmood, Elizabeth Vanwormer, Craig R. Allen

School of Natural Resources: Faculty Publications

Coping with surprise and uncertainty resulting from the emergence of undesired and unexpected novelty or the sudden reorganization of systems at multiple spatiotemporal scales requires both a scientific process that can incorporate diverse expertise and viewpoints, and a scientific framework that can account for the structure and dynamics of interacting social-ecological systems (SES) and the inherent uncertainty of what might emerge in the future. We argue that combining a convergence scientific process with a panarchy framework provides a pathway for improving our understanding of, and response to, emergence. Emergent phenomena are often unexpected (e.g., pandemics, regime shifts) and can be …

Author Correction: Gloria - A Globally Representative Hyperspectral In Situ Dataset For Optical Sensing Of Water Quality, Moritz K. Lehmann, Et Al.

School of Natural Resources: Faculty Publications

Correction to: Scientific Data https://doi.org/10.1038/s41597-023-01973-y, published online 16 February 2023.

An author of the paper was omitted in the original version (Ted Conroy, University of Waikato, New Zealand). This has been corrected in the pdf and HTML versions of the paper, and the associated metadata.

The Search Behavior Of Terrestrial Mammals, M. Noonan, C. Martinez-Garcia, C. H. Fleming, A. R. Little Et. Al

School of Natural Resources: Faculty Publications

No abstract provided.

Impacts Of Algal Blooms And Microcystins In Fish On Small-Scale Fishers In Winam Gulf, Lake Victoria: Implications For Health And Livelihood, Amber F. Roegner, Jessica R. Corman, Lewis M. Sitoki, Zachary A. Kwena, Zachary Ogari, Jared Babu Miruka, Ame Xiong, Chelsea Weirich, Christopher Mulanda Aura, Todd Rex Miller

School of Natural Resources: Faculty Publications

Lake Victoria, bordered by Kenya, Tanzania, and Uganda, provides one of the largest freshwater fisheries in the world and supports millions in small-scale fishing communities. Historical environmental change, including population growth, nutrient loading, introduced invasive species, and rising temperatures, has resulted in eutrophication and persistent cyanobacterial harmful algae blooms (cyanoHABs) over recent decades, particularly in the shallower gulfs, bays, and inlets. CyanoHABs impact fisheries and food web dynamics and compromise food and water security for nearshore fisher populations. In this study, we examine the socialecological impact of freshwater blooms on fisher health in one of these eutrophic regions, Winam Gulf …

Panta Rhei Benchmark Dataset: Socio-Hydrological Data Of Paired Events Of Floods And Droughts, Heidi Kreibich, Elliot Wickham, Et Al.

School of Natural Resources: Faculty Publications

As the adverse impacts of hydrological extremes increase in many regions of the world, a better understanding of the drivers of changes in risk and impacts is essential for effective flood and drought risk management and climate adaptation. However, there is currently a lack of comprehensive, empirical data about the processes, interactions, and feedbacks in complex human–water systems leading to flood and drought impacts. Here we present a benchmark dataset containing socio-hydrological data of paired events, i.e. two floods or two droughts that occurred in the same area. The 45 paired events occurred in 42 different study areas and cover …

Taps Program Evaluation – Producers, Stephanie M. Kennedy, Mark E. Burbach

School of Natural Resources: Faculty Publications

No abstract provided.

Taps Program Evaluation – Non-Producers, Stephanie M. Kennedy, Mark E. Burbach

School of Natural Resources: Faculty Publications

No abstract provided.

Revisiting The Carbon–Biodiversity Connection, John Gamon

School of Natural Resources: Faculty Publications

This article is a Commentary on Schuldt et al., https://doi.org/10.1111/gcb.16697

The link between biodiversity and ecosystem function has long been a subject of intense interest and debate among biologists, going back to the time of Charles Darwin, whose ideas on species interactions presaged subsequent discussions of biodiversity and ecosystem function (Peterson et al., 1998). Since then, many considerations of community diversity have centered on the importance of species or functional diversity for maintaining system resilience in the face of disturbance, analogous to the way that interwoven threads maintain the function and integrity of fabric. While our language, concepts, and methods …

Connecting Distinct Realms Along Multiple Dimensions: A Meta-Ecosystem Resilience Perspective, David G. Angeler, Jani Heino, Juan Rubio-Ríos, J. Jesús Casas

School of Natural Resources: Faculty Publications

Resilience research is central to confront the sustainability challenges to ecosystems and human societies in a rapidly changing world. Given that social-ecological problems span the entire Earth system, there is a critical need for resilience models that account for the connectivity across intricately linked ecosystems (i.e., freshwater, marine, terrestrial, atmosphere). We present a resilience perspective of meta-ecosystems that are connected through the flow of biota, matter and energy within and across aquatic and terrestrial realms, and the atmosphere. We demonstrate ecological resilience sensu Holling using aquatic-terrestrial linkages and riparian ecosystems more generally. A discussion of applications in riparian ecology and …

White-Tailed Deer (Odocoileus Virginianus) Fawn Survival And The Influence Of Landscape Characteristics On Fawn Predation Risk In The Southern Appalachian Mountains, Usa, Andrew R. Little, A. C. Edge, J. P. Rosenberger, C. J. Yates, C. H. Killmaster, K. L. Johannsen Et Al.

School of Natural Resources: Faculty Publications

No abstract provided.

Machine Learning Approach For Automated Detection Of Irregular Walking Surfaces For Walkability Assessment With Wearable Sensor, Hui R. Ng, Isidore Sossa, Yunwoo Nam, Jong-Hoon Youn

Community and Regional Planning Program: Faculty Scholarly and Creative Activity

The walkability of a neighborhood impacts public health and leads to economic and environmental benefits. The condition of sidewalks is a significant indicator of a walkable neighborhood as it supports and encourages pedestrian travel and physical activity. However, common sidewalk assessment practices are subjective, inefficient, and ineffective. Current alternate methods for objective and automated assessment of sidewalk surfaces do not consider pedestrians’ physiological responses. We developed a novel classification framework for the detection of irregular walking surfaces that uses a machine learning approach to analyze gait parameters extracted from a single wearable accelerometer. We also identified the most suitable location …

Globally Scalable Approach To Estimate Net Ecosystem Exchange Based On Remote Sensing, Meteorological Data, And Direct Measurements Of Eddy Covariance Sites, Ruslan Zhuravlev, Andrey Dara, André Luís Diniz Dos Santos, Oleg Demidov, George Burba

Daugherty Water for Food Global Institute: Faculty Publications

Despite a rapid development of Nature-Based Solutions (NBS) for carbon removal in recent years, the methods for evaluating NBS still have certain gaps. We propose an approach based on a combination of remote sensing data and meteorological variables to reconstruct the spatiotemporal variation of net ecosystem exchange from eddy-covariance stations. A Lagrangian particle dispersion model was used for upscaling satellite images and flux towers. We trained data-driven models based on kernel methods separately for each selected land-cover class. The results suggest that the proposed approach to quantifying carbon exchange on a medium-to-large scale by blending eddy covariance flux data with …

Role Of Social Determinants Of Health In Differential Respiratory Exposure And Health Outcomes Among Children, Jagadeesh Puvvula, Jill A. Poole, Yeongjin Gwon, Eleanor G. Rogan, Jesse E. Bell

Daugherty Water for Food Global Institute: Faculty Publications

Background Attributes defining the Social Determinants of Health (SDoH) are associated with disproportionate exposures to environmental hazards and differential health outcomes among communities. The dynamics between SDoH, disproportionate environmental exposures, and differential health outcomes are often specific to micro-geographic areas.

Methods This study focused on children less than 20 years of age who lived in Douglas County, Nebraska, during 2016–2019. To assess the role of SDoH in differential exposures, we evaluated the association between SDoH metrics and criteria pollutant concentrations and the association between SDoH and pediatric asthma exacerbations to quantify the role of SDoH in differential pediatric asthma outcomes. …

High Sensitivity Of The Tiger Beetle, Cicindela Circumpicta, To Toxicity From Pyrethroids And Neonicotinoids, And Implications For Ecosystem Function And Species Extinctions, S. Svehla, T. Brosius, Leon Higley, T. Hunt

School of Natural Resources: Faculty Publications

No abstract provided.

Flash Drought Typologies And Societal Impacts: A Worldwide Review Of Occurrence, Nomenclature, And Experiences Of Local Populations, D. W. Walker, N. Vergopolan, L. Cavalcante, K. H. Smith, S.M.D. Agounbome, A. Almagro, T. Apurv, N. M. Dahal, D. Hoffman, V. Singh, Z. Xiang

School of Natural Resources: Faculty Publications

No abstract provided.

Assessment Of Health Risks Associated With Contaminants In Groundwater In The Catchment Area Of Selected Dumpsites In Abuja North Central Nigeria, A. Omali, J. T. Arogundade, Daniel D. Snow

School of Natural Resources: Faculty Publications

No abstract provided.

Relation Of Hydrogeology And Contaminant Sources To Drinking Water Quality In Southern Kazakhstan, Z. D. Tleuova, Daniel D. Snow, M. Mukhamedzhanov, A. Ermenbay

School of Natural Resources: Faculty Publications

No abstract provided.

Synergistic Use Of Optical And Biophysical Traits To Assess Bromus Inermis Pasture Performance And Quality Under Different Management Strategies In Eastern Nebraska, U.S., A. Mazis, Tala Awada, G. E. Erickson, Brian D. Wardlow, B. J. Wienhold, V. Jin, M. Schmer, Andrew E. Suyker, Y. Zhou, J. Hiller

School of Natural Resources: Faculty Publications

No abstract provided.

The Cascading And Compounding Impacts Of Drought, 2023, K. H. Smith, C. Knutson, M. Svoboda

School of Natural Resources: Faculty Publications

No abstract provided.

Osc-Co2: Coattention And Cosegmentation Framework For Plant State Change With Multiple Features, R. Quinones, F. Munoz-Arriola, S. D. Choudhury, A. Samal

School of Natural Resources: Faculty Publications

No abstract provided.

Defining And Describing Students’ Socioscientific Issues Tradeoffs Practices, P. C. Jimenez, A. Zwickle, J. M. Dauer

School of Natural Resources: Faculty Publications

No abstract provided.

Student Outcomes Of Teaching About Socio-Scientific Issues In Secondary Science Classrooms: Applications Of Ezgcm, K. Carroll Steward, D. Gosselin, M. Chandler, C. T. Forbes

School of Natural Resources: Faculty Publications

No abstract provided.

Wastewater Treatment In Central Asia: Treatment Alternatives For Safe Water Reuse, M. S. Kalmakhanova, J. L. Diaz De Tuesta, A. Malakar, H. T. Gomes, D. D. Snow

School of Natural Resources: Faculty Publications

No abstract provided.

Lineage Diversity In A Widely Distributed New World Passerine Bird, The House Wren, J. Klicka, K. Epperly, B. T. Smith, G. M. Spellman, J. A. Chaves, P. Escalante, C. C. Witt, R. Canales-Del-Castillo, R. M. Zink

School of Natural Resources: Faculty Publications

No abstract provided.