Digital Commons Network^™

Draft Report Of The N2025 Strategy Team: “Every Person And Every Interaction Matters”, Angela K. Pannier, Susan M. Sheridan Dr., Rick A. Bevins, Shane M. Farritor

University of Nebraska-Lincoln Administration: Reports, Papers, Publications, and Presentations

In 2019, the University of Nebraska-Lincoln celebrated its 150th year. That celebration involved reflection on the past, as well as planning the University’s course into the future. As part of this planning, UNL Chancellor Ronnie Green appointed more than 150 stakeholders — faculty, staff, students, alumni, and community members — to the Nebraska Commission of 150 to envision how the university can best serve the State of Nebraska and the world for the next 25 years.

The N150 Commission was divided into eight subcommittees, each charged with creating specific elements of the campus vision. The subcommittees were:

1. Campus Community …

Hybrid Superhydrophilic–Superhydrophobic Micro/ Nanostructures Fabricated By Femtosecond Laserinduced Forward Transfer For Sub-Femtomolar Raman Detection, Xiaodan Ma, Lan Jiang, Xiaowei Li, Bohong Li, Ji Huang, Jiaxing Sun, Zhi Wang, Zhijie Xu, Liangti Qu, Yongfeng Lu, Tianhong Cui

Department of Electrical and Computer Engineering: Faculty Publications

Raman spectroscopy plays a crucial role in biochemical analysis. Recently, superhydrophobic surface-enhanced Raman scattering (SERS) substrates have enhanced detection limits by concentrating target molecules into small areas. However, due to the wet transition phenomenon, further reduction of the droplet contact area is prevented, and the detection limit is restricted. This paper proposes a simple method involving femtosecond laser-induced forward transfer for preparing a hybrid superhydrophilic–superhydrophobic SERS (HS-SERS) substrate by introducing a superhydrophilic pattern to promote the target molecules to concentrate on it for ultratrace detection. Furthermore, the HS-SERS substrate is heated to promote a smaller concentrated area. The water vapor …

Discovery Of The First Nearctic Moss-Eating Flea Beetle, Distigmoptera Borealis Blake, 1943 (Coleoptera: Chrysomelidae: Galerucinae: Alticini), Alexander S. Konstantinov, Adelita M. Linzmeier, Ana Carla Coelho Morais, Michael W. Palmer, Sonja J. Scheffer, Matthew L. Lewis

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

A flea beetle, Distigmoptera borealis Blake, 1943, is documented for the first time to feed on liverworts, Reboulia hemisphaerica (L.) Raddi (Aytoniaceae), and moss, Weissia controversa Hedw. (Pottiaceae). This is the first and only known bryobiont leaf beetle in the USA and Nearctic biogeographic region. The adult of D. borealis is redescribed and illustrated, and the larva and pupa of D. borealis are described and illustrated for the first time.

Reorganization Of Surviving Mammal Communities After The End-Pleistocene Megafaunal Extinction, Anikó B. Tóth, S. Kathleen Lyons, W. Andrew Barr, Anna K. Behrensmeyer, Jessica L. Blois, René Bobe, Matt Davis, Andrew Du, Jussi T. Eronen, J. Tyler Faith, Danielle Fraser, Nicholas J. Gotelli, Gary R. Graves, Advait M. Jukar, Joshua H. Miller, Silvia Pineda-Munoz, Laura C. Soul, Amelia Villaseñor, John Alroy

School of Biological Sciences: Faculty Publications

Large mammals are at high risk of extinction globally. To understand the consequences of their demise for community assembly, we tracked community structure through the end- Pleistocene megafaunal extinction in North America.We decomposed the effects of biotic and abiotic factors by analyzing co-occurrence within the mutual ranges of species pairs. Although shifting climate drove an increase in niche overlap, co-occurrence decreased, signaling shifts in biotic interactions. Furthermore, the effect of abiotic factors on cooccurrence remained constant over time while the effect of biotic factors decreased. Biotic factors apparently played a key role in continental-scale community assembly before the extinctions. Specifically, …

Economic And Livestock Health Impacts Of Birds On Dairies: Evidence From A Survey Of Washington Dairy Operators, Julie L. Elser, Amber L. Adams Progar, Karen M.M. Steensma, Tyler P. Caskin, Susan R. Kerr, Stephanie A. Shwiff

United States Department of Agriculture Wildlife Services: Staff Publications

The survey described in this research paper aimed to investigate the economic and health impacts of birds on dairies. Birds are common pests on dairies, consuming and contaminating feed intended for cattle. As a result, dairy operators experience increased feed costs and increased pathogen and disease risk. We surveyed dairy operators attending the 2017 Washington Dairy Conference to examine the impact of birds on dairies in Washington State. Dairy operators reported feed losses valued at $55 per cow resulting in annual losses totaling $5.5 million in the Western region of the state and $9.2 million in the Eastern region of …

Sex-Specific Relationships Among Iron Status Biomarkers, Athletic Performance, Maturity, And Dietary Intakes In Pre-Adolescent And Adolescent Athletes, Marni E. Shoemaker, Zachary M. Gillen, Brianna D. Mckay, Nicholas A. Bohannon, Sydney M. Gibson, Karsten Koehler, Joel T. Cramer

Department of Nutrition and Health Sciences: Faculty Publications

Background: The purpose of this study was to examine relationships among biomarkers of iron status, athletic performance, growth and development, and dietary intakes in pre-adolescent and adolescent male and female athletes.

Methods: Two-hundred and forty-nine male (n = 179) (mean ± standard deviation for age = 12.0 ± 2.1 years, height = 156.3 ± 13.9 cm, and weight = 49.1 ± 16.5 kg) and female (n = 70) (12.0 ± 2.2 years, 152.4 ± 12.3 cm, 45.3 ± 14.5 kg) athletes volunteered for capillary blood sample, anthropometric, athletic performance, and dietary intake assessments. Outcomes included maturity offset from peak height …

Double-Crested Cormorant Colony Effects On Soil Chemistry, Vegetation Structure And Avian Diversity, Leah Moran Veum, Brian S. Dorr, Katie C. Hanson-Dorr, R.J. Moore, Scott A. Rush

United States Department of Agriculture Wildlife Services: Staff Publications

Effects of Double-crested Cormorants (Phalacrocorax auritus) on vegetation, soil chemistry and tree health have been documented from their breeding colonies in the northern breeding grounds of Canada and the United States (U.S.) but not for areas within the southeastern United States where breeding activity is relatively novel. We compared vegetation and tree metrics such as structure diversity, and soil chemistry among colony islands, uninhabited islands, and abandoned colony islands within Guntersville Reservoir, a temperate forest ecosystem. Avian diversity and community structure were also quantified on these islands. Concentrations of potassium (K), phosphorus (P) and nitrate (NO3 −) in soil were …

Abundance Estimation From Multiple Data Types For Groupliving Animals: An Example Using Dhole (Cuon Alpinus), Dusit Ngoprasert, George A. Gale, Andrew J. Tyre

School of Natural Resources: Faculty Publications

Large carnivores are declining globally and require baseline population estimates for management, however large-scale population estimation is problematic for species without unique natural marks. We used camera trap records of dhole Cuon alpinus, a group-living species, from three national parks in Thailand as a case study in which we develop integrated likelihood models to estimate abundance incorporating two different data sets, count data and detection/non-detection data. We further investigated relative biases of the models using different proportions of data with lower versus higher quality and assessed parameter identifiability. The simulations indicated that the relative bias on average across 24 tested …

Endoglin Protein Interactome Profiling Identifies Trim21 And Galectin-3 As New Binding Partners, Eunate Gallardo-Vara, Lidia Ruiz-Llorente, Juan Casado-Vela, María J. Ruiz-Rodríguez, Natalia López-Andrés, Asit K. Pattnaik, Miguel Quintanilla

School of Veterinary and Biomedical Sciences: Faculty Publications

Endoglin is a 180-kDa glycoprotein receptor primarily expressed by the vascular endothelium and involved in cardiovascular disease and cancer. Heterozygous mutations in the endoglin gene (ENG) cause herediatry hemorrhagic telangiectasia type 1, a vascular disease that presents with nasal and gastrointestinal bleeding, skin and mucosa telangiectase, and arteriovenous malformations in internal organs. A circulating form of endoglin (alias soluble endoglin, sEng), proteolytically released from the membrane-bound protein, has been observed in several inflammation-related pathological conditions and appears to contribute to endothelial dysfunction and cancer development through unknown mechanisms. Membrane-bound endoglin is an auxiliary component of the TGF-B receptor complex and …

Transcriptome Divergence During Leaf Development In Two Contrasting Switchgrass (Panicum Virgatum L.) Cultivars, Nathan A. Palmer, R. V. Chowda-Reddy, Anthony A. Muhle, Satyanarayana Tatineni, Gary Y. Yuen, Serge J. Edme, Robert B. Mitchell, Gautam Sarath

Department of Plant Pathology: Faculty Publications

The genetics and responses to biotic stressors of tetraploid switchgrass (Panicum virgatum L.) lowland cultivar ‘Kanlow’ and upland cultivar Summer are distinct and can be exploited for trait improvement. In general, there is a paucity of data on the basal differences in transcription across tissue developmental times for switchgrass cultivars. Here, the changes in basal and temporal expression of genes related to leaf functions were evaluated for greenhouse grown ‘Kanlow’, and ‘Summer’ plants. Three biological replicates of the 4th leaf pooled from 15 plants per replicate were harvested at regular intervals beginning from leaf emergence through senescence. Increases and decreases …

Nonlinear Reaction–Diffusion Process Models Improve Inference For Population Dynamics, Xinyi Lu, Perry J. Williams, Mevin B. Hooten, James A. Powell, Jamie N. Womble, Michael R. Bower

United States National Park Service: Publications

Partial differential equations (PDEs) are a useful tool for modeling spatiotemporal dynamics of ecological processes. However, as an ecological process evolves, we need statistical models that can adapt to changing dynamics as new data are collected. We developed a model that combines an ecological diffusion equation and logistic growth to characterize colonization processes of a population that establishes long-term equilibrium over a heterogeneous environment. We also developed a homogenization strategy to statistically upscale the PDE for faster computation and adopted a hierarchical framework to accommodate multiple data sources collected at different spatial scales. We highlighted the advantages of using a …

Bioinformatics Identification Of Anti-Crispr Loci By Using Homology, Guilt-By-Association, And Crispr Self-Targeting Spacer Approaches, Yanbin Yin, Bowen Yang, Sarah Entwistle

Department of Food Science and Technology: Faculty Publications

Anti-CRISPR (Acr) loci/operons encode Acr proteins and Acr-associated (Aca) proteins. Forty-five Acr families have been experimentally characterized inhibiting seven subtypes of CRISPR-Cas systems. We have developed a bioinformatics pipeline to identify genomic loci containing Acr homologs and/or Aca homologs by combining three computational approaches: homology, guilt-by-association, and self-targeting spacers. Homology search found thousands of Acr homologs in bacterial and viral genomes, but most are homologous to AcrIIA7 and AcrIIA9. Investigating the gene neighborhood of these Acr homologs revealed that only a small percentage (23.0% in bacteria and 8.2% in viruses) of them have neighboring Aca homologs and thus form Acr-Aca …

Neonicotinoid Seed Treatments Of Soybean Provide Negligible Benefits To Us Farmers, Spyridon Mourtzinis, Christian H. Krupke, Paul D. Esker, Adam J. Varenhorst, Nicholas J. Arneson, Carl A. Bradley, Adam M. Byrne, Martin I. Chilvers, Loren Giesler, Ames Herbert, Yuba R. Kandel, Maciej J. Kazula, Catherine Hunt, Laura E. Lindsey, Sean Malone, Daren S. Mueller, Seth Naeve, Emerson Nafziger, Dominic D. Reisig, William J. Ross, Devon R. Rossman, Sally Taylor, Shawn P. Conley

Department of Plant Pathology: Faculty Publications

Neonicotinoids are the most widely used insecticides worldwide and are typically deployed as seed treatments (hereafter NST) in many grain and oilseed crops, including soybeans. However, there is a surprising dearth of information regarding NST effectiveness in increasing soybean seed yield, and most published data suggest weak, or inconsistent yield benefit. The US is the key soybean-producing nation worldwide and this work includes soybean yield data from 194 randomized and replicated field studies conducted specifically to evaluate the effect of NSTs on soybean seed yield at sites within 14 states from 2006 through 2017. Here we show that across the …

Monitoring Drought Impact On Annual Forage Production In Semi-Arid Grasslands: A Case Study Of Nebraska Sandhills, Marketa Podebradska, Bruce K. Wylie, Michael J. Hayes, Brian D. Wardlow, Deborah J. Bathke, Norman B. Bliss, Devendra Dahal

School of Natural Resources: Faculty Publications

Land management practices and disturbances (e.g. overgrazing, fire) have substantial effects on grassland forage production. When using satellite remote sensing to monitor climate impacts, such as drought stress on annual forage production, minimizing land management practices and disturbance effects sends a clear climate signal to the productivity data. This study investigates the effect of this climate signal by: (1) providing spatial estimates of expected biomass under specific climate conditions, (2) determining which drought indices explain the majority of interannual variability in this biomass, and (3) developing a predictive model that estimates the annual biomass early in the growing season. To …

A Discussion Of Value Metrics For Data Repositories In Earth And Environmental Sciences, Cynthia Parr, Corinna Gries, Margaret O’Brien, Robert R. Downs, Ruth Duerr, Rebecca Koskela, Philip Tarrant, Keith E. Maull, Nancy Hoebelheinrich, Shelley Stall

Copyright, Fair Use, Scholarly Communication, etc.

Despite growing recognition of the importance of public data to the modern economy and to scientific progress, long-term investment in the repositories that manage and disseminate scientific data in easily accessible-ways remains elusive. Repositories are asked to demonstrate that there is a net value of their data and services to justify continued funding or attract new funding sources. Here, representatives from a number of environmental and Earth science repositories evaluate approaches for assessing the costs and benefits of publishing scientific data in their repositories, identifying various metrics that repositories typically use to report on the impact and value of their …

The Skiles Mummy: Care Of A Debilitated Hunter-Gatherer Evidenced By Coprolite Studies And Stable Isotopic Analysis Of Hair, Kirsten A. Verostick, Isabel Teixeira-Santos, Vaughn M. Bryant Jr., Karl Reinhard

Karl Reinhard Publications

The Skiles Mummy (SMM), a naturally mummified adult male from the late archaic period of Lower Pecos Canyonlands of South Texas, represents a unique case of care. SMM is an exceptional mummy within this region due to both the retention of a full head of hair, and having a diagnosed case of megacolon, a complication commonly associated with Chagas disease caused by Trypanosoma cruzi. Stable isotopic analysis of his hair is consistent with a diet incorporating of C₄/CAM plants with some C₃ plants, freshwater resources, and higher trophic level animals. However, the segments of hair most …

Omega-3 Fatty Acid-Derived Resolvin D2 Regulates Human Placental Vascular Smooth Muscle And Extravillous Trophoblast Activities, Arzu Ulu, Prakash K. Sahoo, Ana G. Yuil-Valdes, Maheswari Mukherjee, Matthew Van Ormer, Philma Glora Muthuraj, Maranda Thompson, Ann Anderson Berry, Corrine K. Hanson, Sathish Kumar Natarajan, Tara M. Nordgren

Department of Nutrition and Health Sciences: Faculty Publications

Omega-3 fatty acids are important to pregnancy and neonatal development and health. One mechanism by which omega-3 fatty acids exert their protective effects is through serving as substrates for the generation of specialized pro-resolving lipid mediators (SPM) that potently limit and resolve inflammatory processes. We recently identified that SPM levels are increased in maternal blood at delivery as compared to umbilical cord blood, suggesting the placenta as a potential site of action for maternal SPM. To explore this hypothesis, we obtained human placental samples and stained for the SPM resolvin D2 (RvD2) receptor GPR18 via immunohistochemistry. In so doing, we …

Ecological Correlates Of Group Integrity Among Dispersing Cliff Swallows, Stacey L. Hannebaum, Mary B. Brown, Charles R. Brown

School of Natural Resources: Faculty Publications

Breeding colonies of birds represent groups of individuals that associate during one breeding season, at least partially dissociate for the non-breeding season, and may re-associate the next year through collective settlement at another breeding site. Little is known about the extent to which colonial birds maintain group integrity when occupying different sites in different years or the benefits of long-term associations among colonial individuals. For cliff swallows (Petrochelidon pyrrhonota) in western Nebraska, USA, we examined ecological correlates and potential benefits associated with group integrity. Using a dataset of over 25,000 individuals, we found that associations between dispersing cliff swallows were …

Condition Bias Of Decoy‐Harvested Light Geese During The Conservation Order, Drew N. Fowler, Elisabeth B. Webb, Mark P. Vrtiska

Nebraska Game and Parks Commission: Staff Research Publications

Evidence that decoy harvest techniques primarily remove individuals of poorer body condition is well established in short‐lived duck species; however, there is limited support for condition bias in longer‐lived waterfowl species, such as geese, where decoy harvest is considered primarily additive because of their high natural survival rates. We evaluated support for the harvest condition bias hypothesis of 2 long‐lived waterfowl species, the lesser snow goose (Anser caerulescens caerulescens) and Ross’s goose (Anser rossii). We used proximate analysis to quantify lipid and protein content of lesser snow and Ross’s geese collected during the Light Goose Conservation Order (LGCO) in 2015 …

Use Of Probiotic Bacterial Strains And Cell Extracts To Inhibit Acidosis And Liver Abscesses In Cattle, Samodha Charaka Fernand

Department of Animal Science: Faculty Publications

Disclosed are methods of using probiotic bacterial strains Aneurinibacillus migulanus, Aneurinibacillus aneurinilyti cus and / or extracts thereof for inhibiting the growth of Streptococcus bovis , Fusobacterium necrophorum , and Acranobacterium ( Actinomyces ) pyogenes . These bacterial strains and / or their extracts can be used in cattle to treat acidosis and / or liver abscesses , as well as inhibit foot rot, among other infections and conditions caused by Strepto coccus bovis and / or Fusobacterium necrophorum and / or Acranobacterium (Actinomyces) pyogenes. Compositions for use in these methods are also provided.

Evaluation Of Epas1 Variants For Association With Bovine Congestive Heart Failure [Version 1; Peer Review: 2 Approved], Michael P. Heaton, Adam S. Bassett, Katherine J. Whitman, Greta M. Krafsur, Sang M. Lee, Jaden M. Carlson, Halden J. Clark, Helen R. Smith, Madeline C. Pelster, Veronica Basnayake, Dale M. Grotelueschen, B. Vander Ley

School of Veterinary and Biomedical Sciences: Faculty Publications

Background: Bovine congestive heart failure (BCHF) has become increasingly prevalent in feedlot cattle in the Western Great Plains of North America. BCHF is an untreatable complex condition involving pulmonary hypertension that culminates in right ventricular failure and death. A protein variant of hypoxia-inducible factor 2 alpha (HIF2α, encoded by the endothelial PAS domain-containing protein 1 gene, EPAS1) was previously reported to be associated with pulmonary hypertension at altitudes exceeding 2,000 m. Our aim was to evaluate EPAS1 haplotypes for association with BCHF in feedlot cattle raised at moderate altitudes (1,200 m).

Methods: Paired samples of clinical cases and unaffected controls …

Transcriptome And Gene Expression Analysis Of Three Developmental Stages Of The Coffee Berry Borer, Hypothenemus Hampei, Daniel D. Noriega, Paula L. Arias, Helena R. Barbosa, Fabricio B.M. Arraes, Gustavo A. Ossa, Bernardo Villegas, Roberta R. Coelho, Erika V. S. Albuquerque, Roberto C. Togawa, Priscila Grynberg, Haichuan Wang, Ana M. Vélez, Jorge W. Arboleda, Maria F. Grossi-De-Sa, Maria C.M. Silva, Arnubio Valencia-Jiménez

Department of Entomology: Faculty Publications

Coffee production is a global industry valued at approximately 173 billion US dollars. One of the main challenges facing coffee production is the management of the coffee berry borer (CBB), Hypothenemus hampei, which is considered the primary arthropod pest of coffee worldwide. Current control strategies are inefficient for CBB management. Although biotechnological alternatives, including RNA interference (RNAi), have been proposed in recent years to control insect pests, characterizing the genetics of the target pest is essential for the successful application of these emerging technologies. In this study, we employed RNA-seq to obtain the transcriptome of three developmental stages of the …

Comparison Of Methods For Modeling Fractional Cover Using Simulated Satellite Hyperspectral Imager Spectra, Philip E. Dennison, Yi Qi, Susan K. Meerdink, Raymond F. Kokaly, David R. Thompson, Craig S.T. Daughtry, Miguel Quemada, Dar A. Roberts, Paul D. Gader, Erin B. Wetherley, Izaya Numata, Keely L. Roth

School of Natural Resources: Faculty Publications

Remotely sensed data can be used to model the fractional cover of green vegetation (GV), non-photosynthetic vegetation (NPV), and soil in natural and agricultural ecosystems. NPV and soil cover are difficult to estimate accurately since absorption by lignin, cellulose, and other organic molecules cannot be resolved by broadband multispectral data. A new generation of satellite hyperspectral imagers will provide contiguous narrowband coverage, enabling new, more accurate, and potentially global fractional cover products. We used six field spectroscopy datasets collected in prior experiments from sites with partial crop, grass, shrub, and low-stature resprouting tree cover to simulate satellite hyperspectral data, including …

Permafrost Hydrology Drives The Assimilation Of Old Carbon By Stream Food Webs In The Arctic, Jonathan A. O’Donnell, Michael P. Carey, Joshua C. Koch, Xiaomei Xu, Brett A. Poulin, Jennifer Walker, Christian E. Zimmerman

United States National Park Service: Publications

Permafrost thaw in the Arctic is mobilizing old carbon (C) from soils to aquatic ecosystems and the atmosphere. Little is known, however, about the assimilation of old C by aquatic food webs in Arctic watersheds. Here, we used C isotopes (d13C, D14C) to quantify C assimilation by biota across 12 streams in arctic Alaska. Streams spanned watersheds with varying permafrost hydrology, from ice-poor bedrock to ice-rich loess (that is, yedoma). We measured isotopic content of (1) C sources including dissolved organic C (DOC), dissolved inorganic C (DIC), and soil C, and (2) stream biota, including benthic biofilm and macroinvertebrates, and …

The Nuclear 18s Ribosomal Dnas Of Avian Haemosporidian Parasites, Josef Harl, Tanja Himmel, Gediminas Valkiūnas, Herbert Weissenböck

Harold W. Manter Laboratory of Parasitology: Library Materials

Background: Plasmodium species feature only four to eight nuclear ribosomal units on different chromosomes, which are assumed to evolve independently according to a birth-and-death model, in which new variants originate by duplication and others are deleted throughout time. Moreover, distinct ribosomal units were shown to be expressed during different developmental stages in the vertebrate and mosquito hosts. Here, the 18S rDNA sequences of 32 species of avian haemosporidian parasites are reported and compared to those of simian and rodent Plasmodium species.

Methods: Almost the entire 18S rDNAs of avian haemosporidians belonging to the genera Plasmodium (7), Haemoproteus (9), …

Network Effects In Blau Space: Imputing Social Context From Survey Data, Miller Mcpherson, Jeffrey A. Smith

Department of Sociology: Faculty Publications

We develop a method of imputing ego network characteristics for respondents in probability samples of individuals. This imputed network uses the homophily principle to estimate certain properties of a respondent’s core discussion network in the absence of actual network data. These properties measure the potential exposure of respondents to the attitudes, values, beliefs, etc. of their (likely) network alters. We use American National Election Survey data (2016 ANES) to demonstrate that the imputed network features show substantial effects on individual level measures, such as political attitudes and beliefs. In some cases, the imputed network variable substantially reduces the effects of …

Modeling The Interplay Between Photosynthesis, Co2 Fixation, And The Quinone Pool In A Purple Non-Sulfur Bacterium, Adil Alsiyabi, Cheryl M. Immethum, Rajib Saha

Department of Chemical and Biomolecular Engineering: Faculty Publications

Rhodopseudomonas palustris CGA009 is a purple non-sulfur bacterium that can fix carbon dioxide (CO 2) and nitrogen or break down organic compounds for its carbon and nitrogen requirements. Light, inorganic, and organic compounds can all be used for its source of energy. Excess electrons produced during its metabolic processes can be exploited to produce hydrogen gas or biodegradable polyesters. A genome-scale metabolic model of the bacterium was reconstructed to study the interactions between photosynthesis, CO2 fixation, and the redox state of the quinone pool. A comparison of model-predicted flux values with available Metabolic Flux Analysis (MFA) fluxes yielded predicted errors …

Promoting Change In Common Tern (Sterna Hirundo) Nest Site Selection To Minimize Construction Related Disturbance., Peter C. Mcgowan, Jeffery D. Sullivan, Carl R. Callahan, William Schultz, Jennifer L. Wall, Diann J. Prosser

United States Fish and Wildlife Service: Publications

Due to the many challenges facing waterbird populations (Jia et al. 2018, Wetlands International 2018), it has become common practice to limit disturbance to breeding colonies whenever possible to maximize reproductive success. While this may require often unpopular must also ensure that individuals do not nest at the historical nesting site. One approach is to reduce the quality or quantity of breeding habitat at the historical colony and create or improve habitat at a desired location (Roby et al. 2002, Hartman et al. 2018). However, this jeopardizes the colony if the new site is not adopted. Another option is the …

Understanding Interactions Of Citropin 1.1 Analogues With Model Membranes And Their Influence On Biological Activity, Nathalia Rodrigues De Almeida, Jonathan Catazaro, Maddeboina Krishnaiah, Yashpal Singh Chhonker, Daryl J. Murry, Robert Powers, Martin Conda-Sheridan

Department of Chemistry: Faculty Publications

The rapid emergence of resistant bacterial strains has made the search for new antibacterial agents an endeavor of paramount importance. Cationic antimicrobial peptides (AMPs) have the ability to kill resistant pathogens while diminishing the development of resistance. Citropin 1.1 (Cit 1.1) is an AMP effective against a broad range of pathogens. 20 analogues of Cit 1.1 were prepared to understand how sequence variations lead to changes in structure and biological activity. Various analogues exhibited an increased antimicrobial activity relative to Cit 1.1. The two most promising, AMP-016 (W3F) and AMP-017 (W3F, D4R, K7R) presented a 2- to 8-fold increase in …

Promoting Change In Common Tern (Sterna Hirundo) Nest Site Selection To Minimize Construction Related Disturbance., Peter C. Mcgowan, Jeffery D. Sullivan, Carl R. Callahan, William Schultz, Jennifer L. Wall, Diann J. Prosser

United States Geological Survey: Staff Publications

Due to the many challenges facing waterbird populations (Jia et al. 2018, Wetlands International 2018), it has become common practice to limit disturbance to breeding colonies whenever possible to maximize reproductive success. While this may require often unpopular management techniques including beach closures (Jorgensen et al. 2015, Mayo et al. 2015) and predator removal (Neuman et al. 2004, Stocking et al. 2017), such actions are sometimes necessary for the success of the colony. However, there are instances when eliminating disturbance is not possible and birds must be attracted to a new site. A common method for attracting waterbirds to a …