Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Life Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 61 - 90 of 117130

Full-Text Articles in Entire DC Network

Community-Based Well Testing And Outreach To Mitigate Human Health Risk From Unsafe Drinking Water, W. Adam Sigler, Katharine Sutphen, Margaret J Eggers, Kaleena Miller, Michelle Grocke-Dewey Oct 2026

Community-Based Well Testing And Outreach To Mitigate Human Health Risk From Unsafe Drinking Water, W. Adam Sigler, Katharine Sutphen, Margaret J Eggers, Kaleena Miller, Michelle Grocke-Dewey

Journal of Extension

Twenty-two percent of groundwater wells tested nationwide have one or more contaminants above a health threshold, yet many private well owners are unaware of these risks because they have not tested their water. Researchers piloted a community well testing clinic for education/outreach and surveyed participants about outcomes. Two months later, 75% of participants with high or intermediate health risk water quality results had taken action or intended to, indicating that community private well testing clinics can be effective in mitigating human health risks from contaminated drinking water.


Educating Livestock Producers And Monitoring The Ecological Health Of Grazing Spaces, Morgan Mathisonslee, Matt R. Raven, Crista Derry Oct 2026

Educating Livestock Producers And Monitoring The Ecological Health Of Grazing Spaces, Morgan Mathisonslee, Matt R. Raven, Crista Derry

Journal of Extension

Addressing the climate catastrophe requires a systems approach with a focus on regenerating agricultural landscapes. To address these complex problems, we offered a monitoring training focused on a systems approach to livestock stewardship using the Savory Institute's Ecological Outcomes Verification protocol to monitor ecosystem health. The training encouraged producers to use systems-based management practices to promote ecological regeneration. We found that despite producers not adopting the monitoring protocol, there were increases in the ecological health of their farms. We suggest Extension professionals consider teaching similar ecological monitoring protocols to benefit producers and support claims about regenerative agriculture.


Creating Sustainable School And Home Gardens: Gardening Indoors, Rita Hagevik, Kathy Cabe Trundle Oct 2026

Creating Sustainable School And Home Gardens: Gardening Indoors, Rita Hagevik, Kathy Cabe Trundle

All Current Publications

Extending your growing season is a great way to produce more food earlier in spring, later in fall, or even during winter. One of the best ways to do this is to use indoor gardening and greenhouse systems, which let you grow plants beyond what is possible outdoors or alongside outdoor growing. This guide focuses on soil-based indoor gardening.


Marine Spatial Planning In The Asean Countries: Lesson Learned For Future Ocean Governance In Malaysia, Husni Alhan Md Salimun, Mohd Fadzil Akhir, Nazli Aziz, Che Din Mohd Safuan, Wan Izatul Asma Wan Talaat Oct 2026

Marine Spatial Planning In The Asean Countries: Lesson Learned For Future Ocean Governance In Malaysia, Husni Alhan Md Salimun, Mohd Fadzil Akhir, Nazli Aziz, Che Din Mohd Safuan, Wan Izatul Asma Wan Talaat

Journal of Environmental Science and Sustainable Development

Marine Spatial Planning (MSP) has emerged as an important governance instrument for balancing ecological protection, economic development, and social inclusion amid the rapidly intensifying blue economy in Southeast Asia. Although several ASEAN Member States (AMS) have initiated MSP processes, the existing literature on MSP governance in this region  remains fragmented and largely descriptive, limiting systematic cross-country comparison and evidence-based lessons. This study addresses this gap by assessing MSP governance performance across ASEAN countries and againts internationally recognized MSP governance benchmarks. A structured narrative review was conducted using selected PRISMA-informed procedures for literature identification and screening. Academic publications from 2003 to …


Market Trends And Challenges For Alabama's Emerging Oyster Aquaculture Industry, Taryn M. Garlock, Quinn Lafontaine, Russell Grice, Andrea M. Tarnecki Oct 2026

Market Trends And Challenges For Alabama's Emerging Oyster Aquaculture Industry, Taryn M. Garlock, Quinn Lafontaine, Russell Grice, Andrea M. Tarnecki

Journal of Extension

Different marketing channels influence farm profitability by affecting the costs that producers incur and the prices they receive. This article quantifies oyster sales volume and price by market channel in Alabama's commercial oyster aquaculture sector and assesses challenges to expanding farm businesses. The results show that many oyster producers are selling exclusively through one channel, which raises questions about their resiliency and their capacity to adapt to a dynamic single market. The two most common market channels were processors and distributors. Most growers had a positive outlook on sales growth and showed the greatest interest in expanding sales to distributors, …


Good Governance In The Concept Of Climate Justice: Decarbonisation Policies In Economic Considerations Of Losses And Sacrifices, Daryanti Daryanti, Albertus Sentot Sudarwanto, Erna Dyah Kusumawati, Rosita Candrakirana Oct 2026

Good Governance In The Concept Of Climate Justice: Decarbonisation Policies In Economic Considerations Of Losses And Sacrifices, Daryanti Daryanti, Albertus Sentot Sudarwanto, Erna Dyah Kusumawati, Rosita Candrakirana

Journal of Environmental Science and Sustainable Development

Projections of losses resulting from the impacts of climate change in Indonesia are estimated to reach USD 30.5 million, affecting four key sectors: agriculture, water supply, health, and the maritime sector. This study shows that good governance based on climate justice in the implementation of decarbonization policies is the most important factor in avoiding long-term economic losses caused by the adverse impacts of climate change or investing in climate resilience. This study employed a normative methodology using a statutory approach to examine efforts related to climate change mitigation and adaptation. The findings of this research indicate that regulations in Indonesia, …


Improving Market Acceptance Of Agrivoltaic Implementation In Japan, Divya Suresh, Yuxin Qin, Kenichiro Hiramoto, Takuma Otaki, Abhishek Choudhury, Xiao Chen, Rajib Shaw Oct 2026

Improving Market Acceptance Of Agrivoltaic Implementation In Japan, Divya Suresh, Yuxin Qin, Kenichiro Hiramoto, Takuma Otaki, Abhishek Choudhury, Xiao Chen, Rajib Shaw

Journal of Environmental Science and Sustainable Development

Agrivoltaics (AV) enables the simultaneous use of land for solar energy generation and agricultural production. While AV has been widely studied from technical and economic perspectives, limited attention has been paid to market acceptance among farmers, particularly in Japan, where adoption remains constrained despite policy interest in renewable energy and rural revitalization. Existing studies identify regulatory, financial, and technical barriers, but insufficiently explain how farmer-level acceptance is shaped across different agricultural contexts or how project co-benefits can support adoption. This study examines farmers’ market acceptance of AV in Japan through a multi-case analysis of six projects in rice-cultivation areas, mountainous …


Climate Change Mitigation And Forest Conservation: A Sdg-Aligned Framework For Malaysia, Hui Nee Au Yong, Chuan Chew Foo, Maryam Kalhoro, Irfan Rashdi Oct 2026

Climate Change Mitigation And Forest Conservation: A Sdg-Aligned Framework For Malaysia, Hui Nee Au Yong, Chuan Chew Foo, Maryam Kalhoro, Irfan Rashdi

Journal of Environmental Science and Sustainable Development

Climate change and biodiversity loss are interlinked global crises that require integrated governance approaches, particularly in biodiversity-rich countries such as Malaysia. This study develops and empirically tests a climate biodiversity sustainable development goal (SDGs) nexus model that integrates forest governance, carbon sequestration, Indigenous Ecological Knowledge (IEK), and sustainable practices to explain climate mitigation and biodiversity conservation outcomes. Survey data were collected from 412 respondents across Peninsular Malaysia, Sabah, and Sarawak using Partial Least Squares Structural Equation Modelling (PLS-SEM) to test the hypothesised relationships. The analysis examines direct, mediating, and moderating relationships among governance, social, technological, and policy factors. Forest governance …


Does Farm Size Matter In Agricultural Extension Programs? Insights From Us Agriculture Census Data, Pilja Vitale, Joshua Campbell, Jeffrey Vitale, Michael Patrick, John Garlisch Oct 2026

Does Farm Size Matter In Agricultural Extension Programs? Insights From Us Agriculture Census Data, Pilja Vitale, Joshua Campbell, Jeffrey Vitale, Michael Patrick, John Garlisch

Journal of Extension

This commentary examines how farm size influences agricultural Extension programs in the United States, highlighting disparities between large and small farms. While large farms dominate production through advanced technologies and economies of scale, small farms are vital for food security, community well-being, and cultural preservation. Key differences include water use, labor, machinery, marketing, financial management, and food safety practices. Extension programs address these disparities through tailored initiatives such as financial literacy training for small farms and technology adoption workshops for large ones. This analysis emphasizes the need for targeted and inclusive Extension programming to enhance sustainability and equity across farm …


Virtual Natural Lighting Solutions (Vnls) Inside Hospitals And Its Psychological Impact, Asmaa Alaa Hasanein Hasanein, Alaa Shams Al-Din Al-Aishi, Marwa Atef Abd Elhady Oct 2026

Virtual Natural Lighting Solutions (Vnls) Inside Hospitals And Its Psychological Impact, Asmaa Alaa Hasanein Hasanein, Alaa Shams Al-Din Al-Aishi, Marwa Atef Abd Elhady

Mansoura Engineering Journal

This study examines the correlation between daylighting environments in hospitals, users evaluations, and ways of bringing virtual natural light into inner spaces, highlighting the importance of good daylighting design for physical and psychological well-being. Virtual Natural Lighting Solutions (VNLS) mimic the balanced spectrum of natural light, bridging the gap between natural and artificial light, and are crucial for tasks, circadian rhythm, and mood in healthcare settings. The research addresses the variability and limitations of natural light, proposing VNLS for healthcare lighting design, especially in hospitals lacking daylight. The study aims to develop a methodology for using VNLS in healthcare environments …


Weedy Vascular Plants Of The United States, James P. Smith Jr Oct 2026

Weedy Vascular Plants Of The United States, James P. Smith Jr

Botanical Studies

No abstract provided.


Realities Of Engendering Federalization: Political Commitment To Gender Equality, Resources, And Policy, Christine S. Diaz Oct 2026

Realities Of Engendering Federalization: Political Commitment To Gender Equality, Resources, And Policy, Christine S. Diaz

Journal of Public Affairs and Development

Amid several initiatives to federalize the Philippines, discourse on engendering federalization remains scarce. This gap forms the basis of this study, which examined the realities of engendering federalization. Data were gathered through in-depth interviews and key informant interviews with research participants from various sectors in Davao City. Guided by Caren Levy’s Web of Institutionalization Framework, the study focused on three core dimensions: political commitment to gender equality, resources, and policy. The findings revealed that engendering federalization, particularly political commitment to gender equality, requires advocacy, institutionalization, gender awareness, and gender-sensitivity formation. Institutional mechanisms, policies, and resources are important for advancing gender-responsive …


Adolescents’ Risk Of Long Covid-19 Syndrome Based On Income Level And Food Insecurity, Christopher J. Waskewich Oct 2026

Adolescents’ Risk Of Long Covid-19 Syndrome Based On Income Level And Food Insecurity, Christopher J. Waskewich

Journal of Social, Behavioral, and Health Sciences

Limited information is available about the effects of food insecurity on adolescents’ long-term health risks from COVID-19. This quantitative, cross-sectional study aimed to examine the effects of food insecurity and family income level on the risk of long COVID-19 syndrome for adolescents (11 to 17 years old). An online survey (n = 298) was conducted with parents of adolescents from New York City, who were recruited from social media online advertisements. The research asked whether there is an association between food insecurity and family income level and the risks of long COVID-19 syndrome. Multivariate logistic regression found a statistically …


Horticultural Diplomacy: A Framework For Growing Culturally Aware Gardeners, Stephen Stresow-Cortez, Stephen Reiners, Ashley Miller Helmholdt Oct 2026

Horticultural Diplomacy: A Framework For Growing Culturally Aware Gardeners, Stephen Stresow-Cortez, Stephen Reiners, Ashley Miller Helmholdt

Journal of Extension

Derived from person-to-person diplomacy models, a ``horticultural diplomacy'' framework was implemented in a statewide vegetable variety trial program for two seasons to introduce Master Gardeners to diverse crops and cultures. Scaffolding learning with relevant recipes, bed groupings, community tasting events, and collecting community (citizen) science data helped participants build garden skills, gain a greater appreciation for other cultures, and inform new educational materials. Horticultural diplomacy is part of a deliberate effort aimed at growing food and building understanding among (primarily White) volunteers. The techniques that helped make this program successful, adaptable to other garden programs, and aspects that require improvements …


The Impact Of Biophilic Design Patterns On Improving Thermal Comfort In Public Libraries Within Hot Arid Climates (A Case Study Of Misr Public Library - Aswan), Zainab Hassan Aljamily, Hatem Mahmoud Fathy, Breksam Hafez Elkess Boules Oct 2026

The Impact Of Biophilic Design Patterns On Improving Thermal Comfort In Public Libraries Within Hot Arid Climates (A Case Study Of Misr Public Library - Aswan), Zainab Hassan Aljamily, Hatem Mahmoud Fathy, Breksam Hafez Elkess Boules

Mansoura Engineering Journal

Reading contributes to cognitive and cultural development, highlighting public libraries as educational and cultural spaces and emphasizing the need to improve their environmental performance. This study analyzes biophilic design patterns and thermal comfort in public libraries in hot arid climates, using Misr Public Library in Aswan as a case study. Despite growing interest in biophilic design, quantitative studies addressing its thermal impact remain limited. The research adopted an applied analytical methodology, including field measurements of temperature and relative humidity in the reading hall using a UT330TH/UT330THC data logger to verify simulation accuracy. Thermal performance was evaluated using DesignBuilder software before …


Strategies To Transform Natural Resource Extension With Inaturalist And Engage The Public In Biodiversity Conservation, Corey T Callaghan, Brittany M Mason Oct 2026

Strategies To Transform Natural Resource Extension With Inaturalist And Engage The Public In Biodiversity Conservation, Corey T Callaghan, Brittany M Mason

Journal of Extension

Participatory citizen science is an increasingly popular tool that provides nonformal education and learning activities. iNaturalist, a free, open-access, participatory citizen science platform, provides a place to engage the public in natural resource programming. Here, we explore practical applications for integrating iNaturalist into Extension programming. We highlight two approaches: (a) self-guided programming, where participants independently engage in biodiversity documentation and professionals contribute identifications, and (b) facilitated programming, which involves structured events and projects led by Extension professionals. We discuss the unique advantages of using iNaturalist in these contexts and offer recommendations for quantitatively measuring and reporting its impact in Extension …


The Other Visual Acuity, Paul B. Freeman Od Oct 2026

The Other Visual Acuity, Paul B. Freeman Od

Optometric Clinical Practice

Editorial


A Comprehensive Review Of Current Trends And Future Prospects In Drug Resistance Of Leishmania Species, Sarah Kamal Naser Oct 2026

A Comprehensive Review Of Current Trends And Future Prospects In Drug Resistance Of Leishmania Species, Sarah Kamal Naser

Maaen Journal for Medical Sciences

Leishmaniasis, which is an infectious tropical disease that is caused by Leishmania protozoa, continues to be a leading global public health problem. This disease is prevalent in about 89 countries, with over one billion individuals being at risk of infection. Current treatments have many limitations, and the efficacy of currently available leishmanial drugs has been undermined by the development of resistant strains of Leishmania. This review highlights the prevailing patterns regarding drug resistance in Leishmania and looks forward to future ways to deal with this problem. The genomic plasticity seen in Leishmania, which includes aneuploidy, gene amplification, chromosome rearrangement, and …


Radiological And Chemical Safety Assessment Of Drinking Water From Treatment Plants And Rivers In Kut City, Iraq, Ahmed A. Alswaty, Hadi D. Alattabi Oct 2026

Radiological And Chemical Safety Assessment Of Drinking Water From Treatment Plants And Rivers In Kut City, Iraq, Ahmed A. Alswaty, Hadi D. Alattabi

Karbala International Journal of Modern Science

Climate change and increasing anthropogenic activities, particularly wastewater discharge into rivers, have raised pollution levels in the water sources of Kut City, necessitating an assessment of the radiological and chemical safety of drinking water at the city's treatment plants. Thirteen water samples were collected, comprising ten treated and three raw water samples from the source rivers. An HPGe detector was used to measure the radionuclides 214Bi, 214Pb, 212Bi, 212Pb, 40K, and 137Cs. All measured radionuclides were below the minimum detectable activity (MDA). ICP-OES analysis supported these findings, as U concentrations in most samples were …


Growing South Dakota (Fall 2026), College Of Agriculture, Food And, Environmental Sciences Oct 2026

Growing South Dakota (Fall 2026), College Of Agriculture, Food And, Environmental Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

[Page] 2 Support from donors helping set SDSU dairy graduates above the rest
[Page] 4 A decade of impact: Celebrating 10 years of cow-calf, swine education and research facilitates
[Page] 8 98-year-old donor keeps decades-long scholarship going in honor of late husband
[Page] 11 Looking back at Michele Dudash's tenure in academia
[Page] 12Giving students opportunities, experience to build their futures
[Page] 16 A Jackrabbit's journey in growing agricultural leadership
[Page] 18 Building South Dakota's next generation of rural veterinarians
[Page] 19 Conservation: A family affair
[Page] 20 South Dakota Water Resources Institute finds solutions to South Dakota's water challenges …


Exploring The Significance Of Kenya's Indigenous And Emerging Blue Foods For Sustainable Aquaculture Development. A Review, Jonathan Munguti, Mavindu Muthoka, Domitila Kyule, Esther Magondu, Kevin Obiero, Jimmy Mboya, Menaga Meenakshisundaram, Tanga M. Chrysantus, Gerald Kwikiriza, Francis K. Njonge Oct 2026

Exploring The Significance Of Kenya's Indigenous And Emerging Blue Foods For Sustainable Aquaculture Development. A Review, Jonathan Munguti, Mavindu Muthoka, Domitila Kyule, Esther Magondu, Kevin Obiero, Jimmy Mboya, Menaga Meenakshisundaram, Tanga M. Chrysantus, Gerald Kwikiriza, Francis K. Njonge

All Peer-Reviewed Publications

Kenya's aquaculture sector is at a pivotal stage, transitioning from a historical reliance on Nile tilapia and African catfish toward a more diversified production portfolio that integrates indigenous and emerging freshwater and marine species. This shift is increasingly recognized as essential to enhance climate resilience, food security, and ecosystem health. This systematic review synthesizes more than two decades (2000 to 31st January, 2026) of peer-reviewed literature to evaluate the biological suitability, culture performance, and socio-ecological roles of underutilized native taxa, including Ningu (Labeo victorianus), Jipe tilapia (Oreochromis jipe), freshwater prawns (Macrobrachium spp.), rabbitfish (Siganus sutor), marine-acclimatized Nile tilapia, mud crab …


Implementation Of The Problem-Based Learning Model On The Topic Of The Immune System To Enhance The Critical Thinking Skills Of Grade Xi B Students At Sman 1 Tojo, Nani Sofyanti, Sutrisnawati Sutrisnawati, Vita Indri Febriani, Mohammad Jamhari, Bustamin Bustamin, Raya Agni Sep 2026

Implementation Of The Problem-Based Learning Model On The Topic Of The Immune System To Enhance The Critical Thinking Skills Of Grade Xi B Students At Sman 1 Tojo, Nani Sofyanti, Sutrisnawati Sutrisnawati, Vita Indri Febriani, Mohammad Jamhari, Bustamin Bustamin, Raya Agni

Jurnal Pendidikan Sains

Critical-thinking skills are essential competencies for students in 21st-century learning. Preliminary classroom observations in Class XI B at SMAN 1 Tojo indicated that instruction remained predominantly teacher-centered and provided limited opportunities for students to engage in activities involving interpretation, analysis, evaluation, and inference. This study aimed to improve students’ critical-thinking skills through the implementation of Problem-Based Learning (PBL) on the immune system topic. The study employed a Classroom Action Research (CAR) design conducted over two cycles, involving 28 students in Class XI B. Data were collected using a teacher activity observation sheet and critical-thinking skills tests assessing four indicators: interpretation, …


Junior High School Students’ Understanding Of Pathogenic Microbes In The School Environment: A Cross-Grade Descriptive Study At Smp Alkhairaat 1 Palu, Feren Febrianti, I Nengah Kundera, Yulia Windarsih, Mohammad Jamhari, Mursito S. Bialangi, Abdul Ashari Sep 2026

Junior High School Students’ Understanding Of Pathogenic Microbes In The School Environment: A Cross-Grade Descriptive Study At Smp Alkhairaat 1 Palu, Feren Febrianti, I Nengah Kundera, Yulia Windarsih, Mohammad Jamhari, Mursito S. Bialangi, Abdul Ashari

Jurnal Pendidikan Sains

This study aimed to describe students’ understanding of pathogenic microbes and compare descriptive comprehension profiles across Grades VII, VIII, and IX at SMP Alkhairaat 1 Palu. A quantitative descriptive approach was employed involving 49 students selected through purposive sampling. Data were collected using an essay test as the primary instrument, supported by semi-structured interviews and observations of the school environment. The essay test assessed three indicators: conceptual knowledge of pathogenic microbes, understanding of disease transmission mechanisms, and understanding of clean and healthy practices for preventing the transmission of pathogenic microbes. Test data were analyzed descriptively using mean percentage scores, while …


The Ability Of Biology Teachers Of State Madrasah Aliyah In Palu City In Developing Teaching Modules In Merdeka Curriculum, Ulya Afifa, Gamar B. N Shamdas, Syech Zainal, Bustamin Bustamin, Raya Agni, Rafiqa Rafiqa Sep 2026

The Ability Of Biology Teachers Of State Madrasah Aliyah In Palu City In Developing Teaching Modules In Merdeka Curriculum, Ulya Afifa, Gamar B. N Shamdas, Syech Zainal, Bustamin Bustamin, Raya Agni, Rafiqa Rafiqa

Jurnal Pendidikan Sains

Teachers’ ability to develop teaching modules is essential for implementing the Merdeka Curriculum because it enables curriculum expectations to be translated into flexible and context-responsive learning. This study aimed to describe Biology teachers’ ability to develop teaching modules at State Islamic Senior High Schools (Madrasah Aliyah Negeri [MAN]) in Palu City and to identify the factors supporting or constraining this ability. A descriptive qualitative study was conducted with seven Biology teachers from MAN 1 Palu, MAN 2 Palu, and MAN Insan Cendekia Palu during February–March 2026. Data were collected through questionnaires, interviews, documentation, and analysis of teaching modules using …


Obsessive-Compulsive Subtraits And Self-Agency, Jacob Nelson, Cody Barton, Carissa Phillipi Phd Sep 2026

Obsessive-Compulsive Subtraits And Self-Agency, Jacob Nelson, Cody Barton, Carissa Phillipi Phd

Undergraduate Research Symposium

Obsessive-Compulsive Disorder (OCD) is categorized by persistent, unwanted thoughts, called obsessions. and repetitive behaviors, called compulsions. The Obsessive-Compulsive Inventory-Revised (OCI-R) is a valid measure of OCD, and breaks the condition into six subtraits: Checking, Hoarding, Obsessing, Ordering, Neutralizing, & Washing. Prior research has suggested that one’s sense of agency, measured through the Sense of Agency Scale (SoAS), is lower in those with higher overall OCI-R scores compared to those with lower scores and controls. Additionally, sub-clinical checking has been negatively correlated with sense of agency, and sub-clinical hoarding and ordering have been positively correlated with sense of agency. However, there …


Phenotypic Variation Between Surface And Cave-Adapted Poeciliids And Its Effect On Metabolism, Karch Knipp, Michael Tobler, Soren Johnson Sep 2026

Phenotypic Variation Between Surface And Cave-Adapted Poeciliids And Its Effect On Metabolism, Karch Knipp, Michael Tobler, Soren Johnson

Undergraduate Research Symposium

Cave-adapted organisms often exhibit pronounced morphological changes relative to their surface counterparts, a phenomenon known as troglomorphy. In Poecilia mexicana (Atlantic molly), these differences include variation in coloration between surface and cave populations. Troglobitic organisms also typically exhibit reduced metabolic rates, likely as an adaptation to environments with low primary productivity. This makes P. mexicana an ideal system for investigating the evolution of metabolic traits. In this study, we leveraged variation in coloration among cave-dwelling mollies to examine potential associations with resting metabolic rate (RMR). Coloration was quantified using PCR values, and individuals were categorized as “yellow” or “non-yellow.” We …


The Impact Of Caffeine On Bumble Bee Hunger, Hallie Chapman, Becky Hansis-O'Neill, Aimee Dunlap Phd Sep 2026

The Impact Of Caffeine On Bumble Bee Hunger, Hallie Chapman, Becky Hansis-O'Neill, Aimee Dunlap Phd

Undergraduate Research Symposium

Bumble bees (Bombus impatiens) are crucial pollinators, responsible for pollinating multiple native plants and agricultural crops. Caffeine, which is classified as a stimulant, is present in some of these plant species at varying levels. Alterations in bumble bee cognition, including motivation, learning, and hunger, have been associated with caffeine intake. This study explored the impacts of caffeine on the bumble bee behavior on a biological level. While previous research has examined caffeine’s effects on cognition and learning, fewer studies have investigated its effects on hunger at the level of individual bees. Bumble bees, identified with numerically labeled tags, …


Caffeine Concentration: An Analysis On Bumble Bee Foraging Efficiency, Carson Leonard, Becky Hansis-O’Neill, Aimee Dunlap Phd Sep 2026

Caffeine Concentration: An Analysis On Bumble Bee Foraging Efficiency, Carson Leonard, Becky Hansis-O’Neill, Aimee Dunlap Phd

Undergraduate Research Symposium

Caffeine (trimethylxanthine) is a synthetically and naturally produced stimulant that has been shown to elicit an effect on the central nervous system of humans as well as invertebrates. Although the exact mechanisms by which caffeine alters biological processes in invertebrates are still being investigated, its physiological and behavioral effects have been extensively documented. Naturally occurring caffeine is produced by certain flowering plants, including cocoa and tea species, and has been shown to influence invertebrate behavior, particularly cognitive performance and foraging patterns. In pollinating insects, the exposure to caffeine in floral nectar may affect how pollinators evaluate, select, and revisit food …


Tarantulas Can Use Black And White Cues In A Discrimination Learning Task, Jordan Kolinski, Becky Hansis O'Neill, Amiee Dunlap Sep 2026

Tarantulas Can Use Black And White Cues In A Discrimination Learning Task, Jordan Kolinski, Becky Hansis O'Neill, Amiee Dunlap

Undergraduate Research Symposium

Animals use vision to perceive light, shapes, colors, and movement. Many animals that have poor vision are understudied. The purpose of this experiment was to study color vision in tarantulas (Brachypelma hamorii). Researchers have found genes associated with color vision tarantulas, but no behavioral experiments have been done on this topic. Previous research has also shown that tarantulas can see polarized light. In this experiment, we wanted to know if tarantulas could use visual cues to move away from a noxious stimulus - vibration. There were twelve tarantulas being tested in this experiment for between twelve and fifteen …


Relationship Between Morphological And Behavioral Laterality In Astyanax Mexicanus, Allison Lendman, Michael Tobler, Erik Johnson Sep 2026

Relationship Between Morphological And Behavioral Laterality In Astyanax Mexicanus, Allison Lendman, Michael Tobler, Erik Johnson

Undergraduate Research Symposium

Populations within the Astyanax genus have experienced extreme differences in environment, leading to distinct morphological adaptations. The cave populations of these fish are eyeless and have acquired fixed, cranial asymmetries. We explored a possible relationship between this physical asymmetry and behavioral laterality. We tested 28 adult fish, 14 male and 14 female, from the Pachón cave in controlled behavioral trials. We found that both sexes demonstrated behavioral laterality, observed as a consistent left-turn bias in these trials. This supports the hypothesis that these populations display behavioral laterality that is correlated to their physical asymmetries. Ongoing research comparing behavioral patterns in …