Digital Commons Network^™

Macroevolution Of The Plant–Hummingbird Pollination System, Elisa Barreto, Mannfred M.A. Boehm, Ezgi Ogutcen, Stefan Abrahamczyk, Michael Kessler, Jordi Bascompte, Agnes S. Dellinger, Carolina Bello, D. Matthias Dehling, François Duchenne, Miriam Kaehler, Laura P. Lagomarsino, Lúcia G. Lohmann, María A. Maglianesi, Hélène Morlon, Nathan Muchhala, Juan Francisco Ornelas, Mathieu Perret, Nelson R. Salinas, Stacey D. Smith, Jana C. Vamosi, Isabela G. Varassin, Catherine H. Graham

Faculty Publications

Plant–hummingbird interactions are considered a classic example of coevolution, a process in which mutually dependent species influence each other's evolution. Plants depend on hummingbirds for pollination, whereas hummingbirds rely on nectar for food. As a step towards understanding coevolution, this review focuses on the macroevolutionary consequences of plant–hummingbird interactions, a relatively underexplored area in the current literature. We synthesize prior studies, illustrating the origins and dynamics of hummingbird pollination across different angiosperm clades previously pollinated by insects (mostly bees), bats, and passerine birds. In some cases, the crown age of hummingbirds pre-dates the plants they pollinate. In other cases, plant …

Louisiana Agriculture Magazine, Fall 2024

Louisiana Agriculture

Questions drive the science behind the LSU AgCenter. Researcher Erin Oberhaus wanted to find data to help educate Louisiana horse owners about the use of an important medication, and a water quality specialist wondered if noneconomic bodies of water, which include agricultural ponds, might help people generate electricity. The research projects that grew from their questions are detailed in this issue of Louisiana Agriculture.

Also in this issue, scientists share the results from important soybean studies, and the AgCenter farm to school team shares success stories from school gardens across the state.

Research is at the core of the LSU …

Fall 2024 Catalog, Lsu Press

LSU Press Seasonal Catalogs

No abstract provided.

Spatiotemporal Climatology Of Georgia Tropical Cyclones And Associated Rainfall, Reilly Corkran, Jill Trepanier, Vincent Brown

Faculty Publications

Tropical cyclones (TCs), often characterized by high wind speeds and heavy rainfall, cause widespread devastation, affecting millions of people and leading to economic losses worldwide. TC-specific research in Georgia is scarce, likely due to the minimal geographical extent of its coast and the infrequency of direct landfalls. Research on Georgia TCs does not account for storms that make landfall in other southeastern states (e.g., Florida) and continue north, northeast, or northwest into Georgia. This study used the North Atlantic Basin hurricane database (HURDAT2) to quantify the spatiotemporal patterns of direct and indirect landfalling of Georgia tropical cyclones (>16 ms−1) …

Scene Classification Of Remote Sensing Image Based On Multi-Path Reconfigurable Neural Network, Wenyi Hu, Chunjie Lan, Tian Chen, Shan Liu, Lirong Yin, Lei Wang

Faculty Publications

Land image recognition and classification and land environment detection are important research fields in remote sensing applications. Because of the diversity and complexity of different tasks of land environment recognition and classification, it is difficult for researchers to use a single model to achieve the best performance in scene classification of multiple remote sensing land images. Therefore, to determine which model is the best for the current recognition classification tasks, it is often necessary to select and experiment with many different models. However, finding the optimal model is accompanied by an increase in trial-and-error costs and is a waste of …

Machine Learning For Automated Classification Of Lung Collagen In A Urethane-Induced Lung Injury Mouse Model, Khalid Hamad Alnafisah, Amit Ranjan, Sushant P. Sahu, Jianhua Chen, Sarah Mohammad Alhejji, Alexandra Noël, Manas Ranjan Gartia, Supratik Mukhopadhyay

Faculty Publications

Dysregulation of lung tissue collagen level plays a vital role in understanding how lung diseases progress. However, traditional scoring methods rely on manual histopathological examination introducing subjectivity and inconsistency into the assessment process. These methods are further hampered by inter-observer variability, lack of quantification, and their time-consuming nature. To mitigate these drawbacks, we propose a machine learning-driven framework for automated scoring of lung collagen content. Our study begins with the collection of a lung slide image dataset from adult female mice using second harmonic generation (SHG) microscopy. In our proposed approach, first, we manually extracted features based on the 46 …

Sustainability Of Asphalt Mixtures Containing 50% Rap And Recycling Agents, Ibrahim Elnaml, Louay N. Mohammad, Gaylon Baumgardner, Samuel Cooper, Samuel Cooper

Faculty Publications

The substitution of virgin asphalt binder with reclaimed asphalt pavement (RAP) has environmental and economic merits, however, cracking susceptibility arises due to the aged asphalt binder within RAP. The objectives of this study are to (1) enhance the cracking resistance of asphalt mixtures containing 50% RAP utilizing recycling agents (RAs) derived from six petroleum-based and bio-based materials, (2) conduct an environmental impact assessment (represented by global warming potential “GWP”) for high-RAP mixtures including RAs, and (3) estimate the cost effectiveness of including high-RAP content in asphalt mixtures. Based on the RAP asphalt binder performance grade (PG), base asphalt binder PG, …

Prevailing Issues And Actions In Urban Best Practices Across Latin America And The Caribbean, Fabio Capra-Ribeiro

Faculty Publications

This research examines urban best practices (BPs) across Latin America and the Caribbean to illuminate the prevalent issues and actions associated with these locally implemented initiatives. An analysis of 45 BPs from the UN-Habitat repository was conducted using both quantitative and qualitative methods, organized into three phases. The first phase focused on collecting data such as BP sources, countries of origin, and years of implementation. The second phase identified common problems and actions within the BPs. The third phase involved a cross-sectional analysis to identify significant patterns and trends. The study found that many BPs originated from the Dubai International …

Early Preclinical Studies Of Ergosterol Peroxide And Biological Evaluation Of Its Derivatives, Taotao Ling, Luz V. Arroyo-Cruz, William R. Smither, Emily K. Seighman, Michelle M. Martínez-Montemayor, Fatima Rivas

Faculty Publications

Ganoderma lucidum is a medicinal mushroom that produces various pharmacological compounds, including triterpenoids. A major bioactive component of G. lucidum is ergosterol peroxide (EP), which is attributed to its anticancer effects. The current study focuses on the in vitro ADME (absorption, distribution, metabolism, and elimination), in vivo efficacy and toxicity of EP, and the synthesis of new EP derivatives to improve aqueous solubility. It was found that EP is metabolically stable in liver microsomes and plasma. In vivo studies showed that EP inhibits tumor growth in murine cancer models, and it is well tolerated by mice. The maximum tolerated dose …

The Past And Future Of The Fisheries And Marine Ecosystem Model Intercomparison Project, Camilla Novaglio, Andrea Bryndum-Buchholz, Derek P. Tittensor, Tyler D. Eddy, Heike K. Lotze, Cheryl S. Harrison, Ryan F. Heneghan, Olivier Maury, Kelly Ortega-Cisneros, Colleen M. Petrik, Kelsey E. Roberts, Julia L. Blanchard

Faculty Publications

Climate change is increasingly affecting the world's ocean ecosystems, necessitating urgent guidance on adaptation strategies to limit or prevent catastrophic impacts. The Fisheries and Marine Ecosystem Model Intercomparison Project (FishMIP) is a network and framework that provides standardised ensemble projections of the impacts of climate change and fisheries on ocean life and the benefits that it provides to people. Since its official launch in 2013 as a small, self-organized project within the larger Inter-Sectoral Impact Model Intercomparison Project, the FishMIP community has grown substantially and contributed to key international policy processes, such as the Intergovernmental Panel on Climate Change Assessment …

Clarification Of Our Response To “The Importance Of Diversity In Obesity Articles”, Michelle Cardel, Matthew M. Clark, Thomas A. Wadden, Leanne M. Redman, Michael Jensen

Clinical Research Faculty Publications

No abstract provided.

Closing The Gap Between Evidence And Practice For Childhood Obesity Treatment, Alyssa M. Button, Amanda E. Staiano, Hilary K. Seligman

Population and Public Health Science Faculty Publications

No abstract provided.

Too Sensitive Or Not Sensitive Enough? Sensitivity To Context And Justice-Involved Youths' Response To Violence Exposure, Colleen Sbeglia, Curtis Donovyn Smith, Paul J. Frick, Laurence Steinberg, Elizabeth Cauffman

Faculty Publications

With high rates of violence exposure among justice-involved youth, it is critical to identify factors that might impact the likelihood of youth engaging in violence themselves. One such factor is sensitivity to context, which describes how sensitive youth are to experiences in their environment. Using an ethnically diverse sample of justice-involved male adolescents (47% Latino, 38% Black/African American, 15% White) aged 13-17 at the time of their first arrest, the results of this study indicate that exposure to violence was related to increased violent behavior six months later, and this effect was strongest among youth who were low in sensitivity …

Generamen Enables Integration, Comparison, And Meta-Analysis Of Multiple Ranked Gene Lists To Identify Consensus, Unique, And Correlated Genes, Meisam Yousefi, Wayne Ren See, Kam Leng Aw-Yong, Wai Suet Lee, Cythia Lingli Yong, Felic Fanusi, Gavin J.D. Smith, Eng Eong Ooi, Shang Li, Sujoy Ghosh, Yaw Shin Ooi

Division of Basic Science Faculty Publications

High-Throughput experiments often produce ranked gene outputs, with forward genetic screening being a notable example. While there are various tools for analyzing individual datasets, those that perform comparative and meta-Analytical examination of such ranked gene lists remain scarce. Here, we introduce Gene Rank Meta Analyzer (GeneRaMeN), an R Shiny tool utilizing rank statistics to facilitate the identification of consensus, unique, and correlated genes across multiple hit lists. We focused on two key topics to showcase GeneRaMeN: virus host factors and cancer dependencies. Using GeneRaMeN 'Rank Aggregation', we integrated 24 published and new flavivirus genetic screening datasets, including dengue, Japanese encephalitis, …

Esrra Regulates Rplp1-Mediated Translation Of Lysosome Proteins Suppressed In Metabolic Dysfunction-Associated Steatohepatitis And Reversed By Alternate Day Fasting, Madhulika Tripathi, Karine Gauthier, Reddemma Sandireddy, Jin Zhou, Priyanka Guptta, Suganya Sakthivel, Wei Wen Teo, Yadanar Than Naing, Kabilesh Arul, Keziah Tikno, Sung Hee Park, Yajun Wu, Lijin Wang, Boon Huat Bay, Lei Sun, Vincent Giguere, Pierce K.H. Chow, Sujoy Ghosh, Donald P. Mcdonnell, Paul M. Yen, Brijesh K. Singh

Division of Basic Science Faculty Publications

Objective: Currently, little is known about the mechanism(s) regulating global and specific protein translation during metabolic dysfunction-associated steatohepatitis (MASH; previously known as non-alcoholic steatohepatitis, NASH). Methods: Unbiased label-free quantitative proteome, puromycin-labelling and polysome profiling were used to understand protein translation activity in vitro and in vivo. Results: We observed a global decrease in protein translation during lipotoxicity in human primary hepatocytes, mouse hepatic AML12 cells, and livers from a dietary mouse model of MASH. Interestingly, proteomic analysis showed that Rplp1, which regulates ribosome and translation pathways, was one of the most downregulated proteins. Moreover, decreased Esrra expression and binding to …

Autonomic And Enteric Profiling May Help Predict Response To Diverse Obesity Therapies, Michael Eiswerth, Prateek Mathur, Hani Rashed, Frank Greenway, Eric Ravussin, William Johnson, Pichamol Jirapinyo, Christopher C. Thompson, Farid Kehdy, Shabnam Sarker, Le Yu Naing, Michael W. Daniels, Thomas Abell

Clinical Research Faculty Publications

Purpose: Changes in autonomic (ANS) and enteric nervous systems (ENS) may be involved in pathogenesis of obesity. We hypothesized that baseline autonomic and enteric parameters may predict outcomes of diverse obesity therapies. Material and Methods: We studied ANS and ENS physiology in 37 patients (8 male, 29 female, age 45 years, weight 129.7 kg) at 4 centers in patients undergoing medical (9: low-calorie diet) versus invasive (22: 16 sleeve, 6 bypass) and semi-invasive (6: 2 band, 2 high energy stimulation, 2 aspiration) weight loss therapies. Weight loss was reported as percent weight loss from baseline to latest values at 1 …

Effect Of Impaired Awareness Of Hypoglycemia On Glucose Decline During And After Exercise In The T1dexi Study, Jorge L. Jo Kamimoto, Zoey Li, Robin L. Gal, Jessica R. Castle, Francis J. Doyle, Peter G. Jacobs, Corby K. Martin, Roy W. Beck, Peter Calhoun, Michael C. Riddell, Michael R. Rickels

Clinical Research Faculty Publications

Context: Adults with type 1 diabetes (T1D) face the necessity of balancing the benefits of exercise with the potential hazards of hypoglycemia. Objective: This work aimed to assess whether impaired awareness of hypoglycemia (IAH) affects exercise-associated hypoglycemia in adults with T1D. Methods: We compared continuous glucose monitoring (CGM)-measured glucose during exercise and for 24 hours following exercise from 95 adults with T1D and IAH (Clarke score ≥4 or ≥1 severe hypoglycemic event within the past year) to 95 “aware” adults (Clarke score ≤2 and no severe hypoglycemic event within the past year) matched on sex, age, insulin delivery modality, and …

Covid-19 Implications On Worksite Wellness Programming, Renee A. Underwood, Angela R. Wood, Ralph J. Wood, Rylie B. Broussard, Stephanie T. Broyles

Population and Public Health Science Faculty Publications

Seven of the top ten leading causes of death in the United States are due to chronic diseases and treating these accounts for 86 percent of our nation's health care costs. The workplace offers an environment to implement chronic disease prevention strategies, such as worksite wellness programs, due to the large amount of time spent at the worksite daily by employees. As a result of COVID-19, many organizations began to change their workdays (i.e., working from home). This research sought to understand what, if any, implications the COVID-19 epidemic had on worksite wellness programming. Semistructured interviews were employed and recorded …

Discarded Vehicle Tires And Their Association With Mosquito Vector Abundance Across Socioenvironmental Gradients In New Orleans, La, Rebeca De Jesús Crespo, Alexandros Pavlakis, Jennifer Breaux, Claudia Riegel

Faculty Publications

Discarded vehicle tires serve as habitat for mosquito vectors. In New Orleans, Louisiana, discarded tires are an increasingly important public concern, especially considering that the city is home to many medically important mosquito species. Discarded tires are known to be associated with mosquito abundance, but how their presence interacts with other socioenvironmental gradients to influence mosquito ecology is poorly understood. Here, we ask whether discarded tire distribution could be explained by social factors, particularly median income, home vacancy and human population density, and whether these factors interact with urban heat islands (UHI) to drive mosquito vector assemblages. We surveyed tire …

Ixpe Observation Of Pks 2155'304 Reveals The Most Highly Polarized Blazar, Pouya M. Kouch, Ioannis Liodakis, Riccardo Middei, Dawoon E. Kim, Fabrizio Tavecchio, Alan P. Marscher, Herman L. Marshall, Steven R. Ehlert, Laura Di Gesu, Svetlana G. Jorstad, Iván Agudo, Grzegorz M. Madejski, Roger W. Romani, Manel Errando, Elina Lindfors, Kari Nilsson, Ella Toppari, Stephen B. Potter, Ryo Imazawa, Mahito Sasada, Yasushi Fukazawa, Koji S. Kawabata, Makoto Uemura, Tsunefumi Mizuno, Tatsuya Nakaoka, Hiroshi Akitaya, Callum Mccall, Helen E. Jermak, Iain A. Steele, Ioannis Myserlis, Mark Gurwell, Garrett K. Keating, Ramprasad Rao

Faculty Publications

We report the X-ray polarization properties of the high-synchrotron-peaked (HSP) blazar PKS 2155'304 based on observations with the Imaging X-ray Polarimetry Explorer (IXPE). We observed the source between Oct 27 and Nov 7, 2023. We also conducted an extensive contemporaneous multiwavelength (MW) campaign. We find that during the first half (T1) of the IXPE pointing, the source exhibited the highest X-ray polarization degree detected for an HSP blazar thus far, (30.7 ± 2.0)%; this dropped to (15.3 ± 2.1)% during the second half (T2). The X-ray polarization angle remained stable during the IXPE pointing at 129.4 '±1.8 and 125.4 '±3.9 …

Modification Of Childcare's Outdoor Setting For Toddler Physical Activity And Nature-Based Play: A Mixed Methods Study, Chelsea L. Kracht, Amanda E. Staiano, Melissa Harris, Kristin Domangue, Michelle Grantham-Caston

Population and Public Health Science Faculty Publications

Background Toddler physical activity is critical for child health, but little is known about its applications in early childhood education (ECE) centers. The aims of this study were 1) to determine if pragmatic and nature-based modifications to an ECE center's outdoor setting were feasible and acceptable, and 2) to identify barriers and facilitators of toddler physical activity at ECE centers. Methods A multiphase mixed-methods study (QUANT+QUAL) was conducted. In the QUANT study, a stepped, sequential modification of the outdoor setting, using pragmatic and cost-effective nature-based elements, was conducted with a delayed control group over 10-weeks, with follow-up assessments 3-months later …

Reconstructive Evolutionary Morphology: Tracing The Historical Process Of Modifications Of Complex Systems Driven By Natural Selection Through Changing Ecological Conditions, Dominique G. Homberger

Faculty Publications

There is general consensus among evolutionary biologists that natural selection drives phenotypic modifications within populations over generational time. How to reconstruct this historical process, however, has been discussed mostly in theoretical terms, and recommendations and explanations on how to translate such theoretical insights into practice are needed. The present study aims at providing a theory-supported practical guide on how to reconstruct historical evolutionary processes by applying a morphology-centered approach through a series of interdependent steps of descriptive morphology, functional analysis, ecological observation, integration of paleoecological data, and evolutionary synthesis. Special attention is given to the development of tests regarding the …

Toward A Comparative Framework For Studies Of Altitudinal Migration, David Vander Pluym, Nicholas A. Mason

Faculty Publications

The study and importance of altitudinal migration has attracted increasing interest among zoologists. Altitudinal migrants are taxonomically widespread and move across altitudinal gradients as partial or complete migrants, subjecting them to a wide array of environments and ecological interactions. Here, we present a brief synthesis of recent developments in the field and suggest future directions toward a more taxonomically inclusive comparative framework for the study of altitudinal migration. Our framework centers on a working definition of altitudinal migration that hinges on its biological relevance, which is scale-dependent and related to fitness outcomes. We discuss linguistic nuances of altitudinal movements and …

Preliminary Effectiveness Of A One-Week Summer Day Camp For Improving Children’S Health Behaviors And Psychosocial Well-Being Outcomes, Qiaoyin Tan, Yuxin Nie, Paul Son, Renee A. Underwood, Peyton Murray, Callie Hebert, K. Lynn Mckey, Chelsea Hendrick, Amanda E. Staiano, Senlin Chen

Faculty Publications

Purpose: Summer day camp offers children opportunities to grow knowledge and skills, be physically active, and have fun. Compared to healthy children, at-risk children (i.e., overweight, or with obesity and chronic health conditions) typically display less optimal health behaviors and psychosocial well-being, especially during summer months. This study examined the preliminary effectiveness of an American-Diabetes-Association-sponsored summer day camp at improving children’s health behaviors (i.e., physical activity, screen time, diet, sleep) and psychosocial well-being outcomes (i.e., quality of life [QoL], enjoyment, weight-related self-efficacy). Method: The sample consisted of 39 participants, including 19 boys and 20 girls, with majority being overweight (n …

Effects Of Intensive Treatment Of Chinese Women With Gestational Diabetes On The Risk Of Offspring Being Overweight From 3 To 8 Years Of Age, Jing Li, Rui Zhang, Cuiping Zhang, Gongshu Liu, Weiqin Li, Hui Wang, Yijuan Qiao, Zhijie Yu, Gang Hu, Juliana C.N. Chan, Junhong Leng, Xilin Yang

Population and Public Health Science Faculty Publications

No abstract provided.

Trends In The Incidence Of Hypertensive Disorders Of Pregnancy Among The Medicaid Population Before And During Covid-19, Jessica Lin, Heidi Feng, Ronald Horswell, San Chu, Yun Shen, Gang Hu

Population and Public Health Science Faculty Publications

Importance: Hypertensive disorders of pregnancy (HDP) are a group of high blood pressure disorders during pregnancy that are a leading cause of maternal and infant morbidity and mortality. Data on the trend in the incidence of HDP among the Medicaid population during coronavirus disease of 2019 (COVID-19) are lacking. Objective: To determine the trends in the annual incidence of HDP among pregnant Medicaid-insured women in Louisiana before and during the COVID-19 pandemic (2016–2021). Methods: A total of 113,776 pregnant women aged 15–50 years were included in this study. For multiparous individuals, only the first pregnancy was used in the analyses. …

A Hermetic Package Technique For Multi-Functional Fiber Sensors Through Pressure Boundary Of Energy Systems Based On Glass Sealants, Zhichun Fan, Shuda Zhong, Kehao Zhao, Qirui Wang, Yuqi Li, Guangyin Zhang, Guangqun Ma, Jieru Zhao, He Yan, Zhiyong Huang, Jyotsna Sharma, Kevin P. Chen

Faculty Publications

This paper presents a hermitic fiber sensor packaging technique that enables fiber sensors to be embedded in energy systems for performing multi-parameter measurements in high-temperature and strong radiation environments. A high-temperature stable Intrinsic Fabry–Perot interferometer (IFPI) array, inscribed by a femtosecond laser direct writing scheme, is used to measure both temperature and pressure induced strain changes. To address the large disparity in thermo-expansion coefficients (TECs) between silica fibers and metal parts, glass sealants with TEC between silica optical fibers and metals were used to hermetically seal optical fiber sensors inside stainless steel metal tubes. The hermetically sealed package is validated …

Geothermo-Mechanical Alterations Due To Heat Energy Extraction In Enhanced Geothermal Systems: Overview And Prospective Directions, Mary C. Ngoma, Oladoyin Kolawole, Olufemi Olorode

Faculty Publications

Geothermal energy from deep underground (or geological) formations, with or without its combination with carbon capture and storage (CCS), can be a key technology to mitigate anthropogenic greenhouse gas emissions and meet the 2050 net-zero carbon emission target. Geothermal resources in low-permeability and medium- and high-temperature reservoirs in sedimentary sequence require hydraulic stimulation for enhanced geothermal systems (EGS). However, fluid migration for geothermal energy in EGS or with potential CO2 storage in a CO2-EGS are both dependent on the in situ flow pathway network created by induced fluid injection. These thermo-mechanical interactions can be complex and induce varying alterations in …

General And Abdominal Adiposity And Hypertension In Eight World Regions: A Pooled Analysis Of 837 Population-Based Studies With 7·5 Million Participants, Bin Zhou, James E. Bennett, Aidan P. Wickham, Rosie K. Singleton, Anu Mishra, Rodrigo M. Carrillo-Larco, Nayu Ikeda, Lakshya Jain, Ana Barradas-Pires, Rachel A. Heap, Victor P.F. Lhoste, Kate E. Sheffer, Nowell H. Phelps, Archie W. Rayner, Edward W. Gregg, Mark Woodward, Gretchen A. Stevens, Maria L.C. Iurilli, Goodarz Danaei, Mariachiara Di Cesare, Carlos A. Aguilar-Salinas, Noor Ani Ahmad, Pascal Bovet, Zhengming Chen, Albertino Damasceno, Sarah L. Filippi, Imre Janszky, Andre P. Kengne, Young Ho Khang, Kamlesh Khunti, Avula Laxmaiah, Lee Ling Lim, Lauren Lissner, Paula Margozzini

Population and Public Health Science Faculty Publications

Background: Adiposity can be measured using BMI (which is based on weight and height) as well as indices of abdominal adiposity. We examined the association between BMI and waist-to-height ratio (WHtR) within and across populations of different world regions and quantified how well these two metrics discriminate between people with and without hypertension. Methods: We used data from studies carried out from 1990 to 2023 on BMI, WHtR and hypertension in people aged 20–64 years in representative samples of the general population in eight world regions. We graphically compared the regional distributions of BMI and WHtR, and calculated Pearson's correlation …

Vibrational Study Of Co, O2, And H2 Adsorbed On The Cocrfeni (110) High Entropy Alloy Surface, Frank Mckay, Andrew N. Okafor, David P. Young, Ye Xu, Phillip T. Sprunger

Faculty Publications

The vibrational properties of CO, O2, and H2 molecularly or dissociatively adsorbed on a CoCrFeNi(110) surface have been probed using high-resolution energy loss spectroscopy (HREELS) and modeled using density functional theory (DFT) calculations. Large (∼20 mm3) single-crystal, quaternary face-centered cubic CoCrFeNi was synthesized via a modified Czochralski technique. We show strong evidence that CO adsorbs primarily on bridge and on-top sites in compositionally varied local environments, which reflect the random, multielemental surface composition inherent in a high entropy alloy. A variation of adsorption sites is also found with oxygen, which exhibits two broad groups of modes. Comparison to previous photoemission …