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

Digital Commons Network™

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

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 91621 - 91650 of 713656

Full-Text Articles in Entire DC Network

Computer Vision For Robot Using Ai, Sanjana Chandupatla Jan 2023

Computer Vision For Robot Using Ai, Sanjana Chandupatla

All Capstone Projects

Robotics is a multidisciplinary field that involves the design, construction, programming, and operation of robots. Robots are mechanical or electromechanical devices that are outfitted with sensors, processors, and actuators to carry out tasks autonomously or under the direction of a human. Robotics offers several benefits and uses in a variety of fields and industries. Robots can carry out repetitive activities with great accuracy and reliability. They can produce products with consistency in quality by performing operations with extreme accuracy.


Quantum Computing And Its Applications In Healthcare, Vu Giang Jan 2023

Quantum Computing And Its Applications In Healthcare, Vu Giang

OUR Journal: ODU Undergraduate Research Journal

This paper serves as a review of the state of quantum computing and its application in healthcare. The various avenues for how quantum computing can be applied to healthcare is discussed here along with the conversation about the limitations of the technology. With more and more efforts put into the development of these computers, its future is promising with the endeavors of furthering healthcare and various other industries.


University Of Southern Maine Commencement Program 2023, University Of Southern Maine Jan 2023

University Of Southern Maine Commencement Program 2023, University Of Southern Maine

Commencement Programs

University of Southern Maine Commencement Program 2023


Sustaining At Scale: District Mathematics Specialists’ Adaptations To A Teacher Leadership Preparation Program, Michael Jarry-Shore, Victoria Delaney, Hilda Borko Jan 2023

Sustaining At Scale: District Mathematics Specialists’ Adaptations To A Teacher Leadership Preparation Program, Michael Jarry-Shore, Victoria Delaney, Hilda Borko

Curriculum, Instruction, and Foundational Studies Faculty Publications and Presentations

A common approach to scaling up a professional development program is for the researchers who designed the program to prepare teacher leaders to facilitate it at their schools. When researchers eventually leave, however, teacher leaders may receive less support. To ensure that teacher leaders continue receiving support, researchers can prepare district mathematics specialists to assume responsibility for preparing the teacher leaders. Little is known, however, about district mathematics specialists’ role in sustaining, and potentially adapting, professional development programs. We examined district mathematics specialists’ facilitation of an adaptive teacher leadership preparation program. Program sessions were originally facilitated by researchers then by …


Teachers’ Engagement With Student Mathematical Agency And Authority In School-Based Professional Learning, Elizabeth B. Dyer, Michael Jarry-Shore, Alissa Fong, Rebecca Deutscher, Janet Carlson, Hilda Borko Jan 2023

Teachers’ Engagement With Student Mathematical Agency And Authority In School-Based Professional Learning, Elizabeth B. Dyer, Michael Jarry-Shore, Alissa Fong, Rebecca Deutscher, Janet Carlson, Hilda Borko

Curriculum, Instruction, and Foundational Studies Faculty Publications and Presentations

Professional learning can support teachers in developing their understanding of how to position students as agentic and authoritative – a rarity in most classrooms. We analyzed teachers’ discourse during professional development focused on agency and authority in middle school mathematics classrooms. We found that teachers frequently engaged with ideas related to student agency and authority. Though less common, episodes in which teachers constructed new ideas and critiqued existing ones indicate that using activity prompts, practicing responsive facilitation, normalizing critical stances, and positioning frameworks as tentative are important for supporting deeper engagement with ideas related to student agency and authority.


The Landscape Of Advanced Coursework Participation: Understanding Disparities And Intersectionality, Chin-Chih Chen, Chris Parthemos, David Naff, Erica Ross, Virginia Palencia, Beth Fowler, Andrea Herndon, Beverly Fludd-Flanagan Jan 2023

The Landscape Of Advanced Coursework Participation: Understanding Disparities And Intersectionality, Chin-Chih Chen, Chris Parthemos, David Naff, Erica Ross, Virginia Palencia, Beth Fowler, Andrea Herndon, Beverly Fludd-Flanagan

MERC Publications

This population-based study explored students' participation in advanced coursework in elementary schools (gifted/talented programs), middle schools (Algebra I+), and high schools (Advanced Placement) to address enrollment equity. The study identified demographic disparities and the intersectionality of multiple identities to achieve two research aims: 1) to explore how advanced course-taking varies by student demographics, and 2) to understand how disparities in advanced course-taking vary by student demographics and intersectional identities. The findings indicate that disparities in advanced course-taking are related to students’ race, ethnicity, disability status, English learner (EL) status, socioeconomic status, as well as the intersection of these variables. The …


Investigating Students’ Conceptualization Of Linear Programming In Mathematics, A Case Of A Secondary School In Rachuonyo East Sub-County, Kenya, Opiyo Collince Oyaya Jan 2023

Investigating Students’ Conceptualization Of Linear Programming In Mathematics, A Case Of A Secondary School In Rachuonyo East Sub-County, Kenya, Opiyo Collince Oyaya

Master of Education

Mathematics is a compulsory subject in the Kenyan education system from pre-primary to secondary education. The ministry of education through the introduction of the 8-4-4 system of education in 1985 made Mathematics compulsory owing to its vast application in a wide range of spheres and professions. It is argued that proficiency in mathematics propels both economic and technological advancements. To further enhance delivery in this subject area, the ministry of education initiated SMASSE for science and mathematics teachers to help in simplifying the ‘high order’ concepts such as calculus, loci, and linear programming among others. Linear programming is applicable in …


Exploration Of Factors Contributing To Low Achievement Of Learners In Chemistry At Ordinary Secondary Level. A Case Study Of A Mixed Secondary School In Katrini Sub-County, Terego District, Uganda., Andrew Ababo Jan 2023

Exploration Of Factors Contributing To Low Achievement Of Learners In Chemistry At Ordinary Secondary Level. A Case Study Of A Mixed Secondary School In Katrini Sub-County, Terego District, Uganda., Andrew Ababo

Master of Education

The performance of learners in the ordinary secondary section has been low over the years in Uganda. Many learners fail to pass chemistry at ordinary secondary level as such, very few students offer the subject at higher levels. The general purpose of this study was to explore factors contributing to low achievement of learners in chemistry at ordinary secondary section in a mixed secondary school in Katrini sub-county, Terego district, Uganda. A qualitative research approach with a case study design was applied. The sample size had twenty-two participants made up of ten females and twelve males in the following categories: …


Exploring The Use Of Digital Technologies In Early Childhood Teacher Education: A Case Of A Core Primary Teachers’ College In Uganda., Richard Anywar Jan 2023

Exploring The Use Of Digital Technologies In Early Childhood Teacher Education: A Case Of A Core Primary Teachers’ College In Uganda., Richard Anywar

Master of Education

This qualitative case study interrogated the use of digital technologies in Tera CPTC (pseudonym) in Northwestern Uganda under three research questions, namely: (1) What are the digital technologies teacher educators use to improve ECTE at Tera (pseudonym) CPTC? (2) How do teacher educators use digital technologies to improve Early Childhood Teacher Education? (3) What challenges do the ECE teacher educators face with the use of digital technologies to improve teaching and learning at Tera CPTC? Data was collected using classroom observation, focus group discussion, and semi-structured interviews. Three tutors and twenty-four teacher trainees participated in the study. Study findings revealed …


Factors That Influence Girl Child Performance In Science In Upper Primary Classes: A Case Of Two Selected Primary Schools In Arua District, Uganda., Ajuko Anna Grace Jan 2023

Factors That Influence Girl Child Performance In Science In Upper Primary Classes: A Case Of Two Selected Primary Schools In Arua District, Uganda., Ajuko Anna Grace

Master of Education

This study explored the factors that influence girl child performance in integrated science in upper primary classesin two primary schools in Arua district, Uganda. The findings are reflected in the themes; how girls perform in integrated science, factors that influence girls’ performance and strategies that can be used to improve girls’ performance in integrated science in primary schools. This study embraced a qualitative research approach and a case study design. The study sample comprised of thirty (30) participants which included two head teachers from the two selected primary schools, four teachers of science two from each school of study who …


An Analysis Of Tpd: Approaches, Challenges And Implication For The Transfer Of Knowledge And Skills To The Workplace, Baraka Mumo Kilonzo Jan 2023

An Analysis Of Tpd: Approaches, Challenges And Implication For The Transfer Of Knowledge And Skills To The Workplace, Baraka Mumo Kilonzo

Master of Education

This study explored transfer of knowledge and skills from teacher professional learning activities to the workplace. A concurrent mixed method was adopted. Data was collected using questionnaire, FGD and interview. The study was carried out among teachers in public secondary schools in Makueni county in Kenya. The respondents included classroom teachers, principal as well as TPD provider. Findings suggest that the transfer of training into the classroom is influenced by trainee characteristics, training design and work environment which were studied. In addition, findings revealed that while there is a sufficient supply of subject based TPL programs, the quality of these …


Exploring Head Teachers’ Support For Online Learning During The School Closure As A Result Of Covid-19: A Case Of Two Primary Schools In Mombasa County, Kenya, Juma Rashid Haji Jan 2023

Exploring Head Teachers’ Support For Online Learning During The School Closure As A Result Of Covid-19: A Case Of Two Primary Schools In Mombasa County, Kenya, Juma Rashid Haji

Master of Education

The emergence and spread of COVID-19 in the world prompted most governments to close all educational institutions to halt the spread of the virus. Schools in Kenya were closed for nearly 7 months, resulting in a learning loss. The Kenyan government promoted online learning through mass media such as television and radio, while the Kenya Institute of Curriculum Development (KICD) uploaded learning resources to their i-cloud educational portal. However, students and teachers faced several challenges that made it difficult for such headteachers to provide effective support for online learning. The researcher selected two primary schools, two headteachers, two deputy headteachers, …


Exploring The Influence Of One-On-One Peer Support On Academic Performance And Career Pathway Choice For Students With Visual Impairment: A Case Of A Selected Secondary School In Kilimanjaro Region, Gerald John Kimaro Jan 2023

Exploring The Influence Of One-On-One Peer Support On Academic Performance And Career Pathway Choice For Students With Visual Impairment: A Case Of A Selected Secondary School In Kilimanjaro Region, Gerald John Kimaro

Master of Education

This study explored the influence of one-on-one peer support on the performance and career pathway choice of students with Visual Impairment (VI) in secondary school. The study adopted a qualitative research approach with a case study design. The sampling was purposive and the sample size comprises four teachers (One academic teacher, the head of the special need department, one teacher from STEM and one teacher from the social science department) and ten students (five pairs of one-on-one peer support from Form three class). The study employed an interview guide, focus group discussion guide and document analysis protocol as the instruments …


Exploring How Advanced-Level Biology Teachers Integrate Ict In Teaching And Learning,A Case Of One Public Secondary School In Songwe Region, Tanzania, Rose John Shiyo Jan 2023

Exploring How Advanced-Level Biology Teachers Integrate Ict In Teaching And Learning,A Case Of One Public Secondary School In Songwe Region, Tanzania, Rose John Shiyo

Master of Education

Information and Communications Technology (ICT) has pedagogical advantages that can help teachers design, teach, and assess biology lessons. The aim of this study was to explore how teachers integrate ICT during the teaching of Biology at A-level classes in Songwe region, Southern Tanzania. The research site of this study is one public advanced-level secondary school in the Mbozi district. The purposive sampling technique was used to get the sample comprising two, A-level biology teachers, one ICT technician, one laboratory technician, and six students from A-level classes who were persuing a science subject combination known as CBG (Chemistry Biology Geography). This …


Is Biological Death Final? Recomputing The Drake-S Equation For Postmortem Survival Of Consciousness, Adam J. Rock, James Houran, Patrizio E. Tressoldi, Brian Laythe Jan 2023

Is Biological Death Final? Recomputing The Drake-S Equation For Postmortem Survival Of Consciousness, Adam J. Rock, James Houran, Patrizio E. Tressoldi, Brian Laythe

International Journal of Transpersonal Studies

This participatory team science project extended Laythe and Houran’s (2022) prior application of a famous probabilistic argument known as the "Drake equation" to the question of postmortem survival. Specifically, we evaluated effect sizes from peer-reviewed, empirical studies to determine the maximum average percentage effect that ostensibly supports (i.e., "anomalous effects") or refutes (i.e., "known confounds") the survival hypothesis. But unlike the earlier application, this research included a study-specific estimate of the hypothesized variable of "living agent psi" via a new meta-analysis of empirical studies (N = 17) with exceptional subjects vs participants from the general population. Our updated analysis found …


Planting Seeds, Cynthia Smith Jan 2023

Planting Seeds, Cynthia Smith

Goal 4: Intrapersonal Intelligence Narrative

It is easy to become inundated with school, work, and daily life that we forget to practice mindfulness. Mindfulness “is the basic human ability to be fully present, aware of where we are and what we’re doing, and not overly reactive or overwhelmed by what’s going on around us” (Mindful Staff, 2020). The goal of this activity is to demonstrate mindfulness through planting a seed and practicing daily mindfulness as we take care of the seed while it grows. The act of planting a seed requires one to be mindful because this is a delicate process. Cal State Assistant Professor …


University Of South Dakota 2023 Aashe Stars Assessment Report, Meghann Elizabeth Jarchow Jan 2023

University Of South Dakota 2023 Aashe Stars Assessment Report, Meghann Elizabeth Jarchow

Sustainability & Environment Projects

No abstract provided.


Vanadium Partitioning Between Magnetite, Hematite, And A Hydrothermal Fluid: Implications For Iocg And Ioa Deposits, Jeremy Raymond Nederbo Jan 2023

Vanadium Partitioning Between Magnetite, Hematite, And A Hydrothermal Fluid: Implications For Iocg And Ioa Deposits, Jeremy Raymond Nederbo

Graduate Research Theses & Dissertations

Iron oxide-copper-gold (IOCG) and iron oxide-apatite (IOA) deposits are major sources of iron contained within magnetite and/or hematite as well as copper contained within copper-iron sulfides and gold as a native metal. Their formations have been attributed to magmatic, hydrothermal, or a mixture of magmatic-hydrothermal processes. Vanadium can readily substitute into magnetite via ion exchange due to similar atomic radii and charges as iron and has thus been hypothesized to be an effective tracer of hydrothermal or magmatic inputs. To evaluate the mobility of vanadium in a magnetite-hematite-fluid system, experiments on the partitioning of vanadium between magnetite, hematite and a …


Functional Analysis In Simulated Environments, Claire Donehower Paul, Jennifer Walker, Cathy Thomas, Matthew S. Taylor, Jamie Best, Morgan Diaz, Chad A. Rose, Eleazar Vasquez Jan 2023

Functional Analysis In Simulated Environments, Claire Donehower Paul, Jennifer Walker, Cathy Thomas, Matthew S. Taylor, Jamie Best, Morgan Diaz, Chad A. Rose, Eleazar Vasquez

The Journal of Special Education Apprenticeship

The need for highly effective and qualified special educators continues to be a national concern. One of the primary reasons why teachers leave the profession is a lack of effective behavior management skills. Learning how to assess challenging behavior and its causes through functional analysis is one method to enhance teacher skillset in this critical area. The purpose of this study was to investigate the use of a simulation environment to train pre-service and in-service general and special education teachers to conduct functional analysis procedures with fidelity and compare those results to traditional didactic instruction. The results of the study …


Peer-Mediated Instruction And Intervention To Support The Academic Achievement Of Secondary Students With Autism Spectrum Disorder: A Systematic Review Of The Literature, Michael W.M. Mahoney Ph.D. Jan 2023

Peer-Mediated Instruction And Intervention To Support The Academic Achievement Of Secondary Students With Autism Spectrum Disorder: A Systematic Review Of The Literature, Michael W.M. Mahoney Ph.D.

The Journal of Special Education Apprenticeship

The purpose of this paper is to review peer-mediated interventions (PMI) as an effective teaching strategy in supporting the academic achievement of students diagnosed with autism spectrum disorder (ASD) and additional learning needs. Using a systematic review of the literature, eleven (11) peer-reviewed articles met the criteria for inclusion. Results of this search identified four models of PMI that were used to promote on-task academic achievement and increases in correct academic responding. This paper concludes with suggestions for future research and recommendations for implementing peer-mediated interventions in larger inclusive secondary classroom settings.


Exploring Transformers As Compact, Data-Efficient Language Models, Clayton Fields, Casey Kennington Jan 2023

Exploring Transformers As Compact, Data-Efficient Language Models, Clayton Fields, Casey Kennington

Computer Science Faculty Publications and Presentations

Large scale transformer models, trained with massive datasets have become the standard in natural language processing. The huge size of most transformers make research with these models impossible for those with limited computational resources. Additionally, the enormous pretraining data requirements of transformers exclude pretraining them with many smaller datasets that might provide enlightening results. In this study, we show that transformers can be significantly reduced in size, with as few as 5.7 million parameters, and still retain most of their downstream capability. Further we show that transformer models can retain comparable results when trained on human-scale datasets, as few as …


Precise Zircon U-Pb Dating Of The Mesoproterozoic Gawler Large Igneous Province, South Australia, Elizabeth A. Jagodzinski, Anthony J. Reid, James L. Crowley, Claire E. Wade, Stacey Curtis Jan 2023

Precise Zircon U-Pb Dating Of The Mesoproterozoic Gawler Large Igneous Province, South Australia, Elizabeth A. Jagodzinski, Anthony J. Reid, James L. Crowley, Claire E. Wade, Stacey Curtis

Geosciences Faculty Publications and Presentations

The Mesoproterozoic Gawler Range Volcanics and Benagerie Volcanic Suite of the Gawler Craton and Curnamona Province, South Australia, together with associated intrusive magmatism, define an intracontinental, subaerial large igneous province (LIP) preserving an estimated 110 000 km3 of volcanic rock, which hosts one of the world's largest orebodies, the Fe oxide-Cu-Au-U deposit at Olympic Dam, and numerous other related Cu-Au deposits. New high-precision Chemical Abrasion Isotope Dilution Thermal Ionization Mass Spectrometry (CA-TIMS) U-Pb dates on volcanic zircons allow for regional correlations between stratigraphic units of the GRV and BVS, and an understanding of how magmatic styles, temperatures, composition and …


Drivers Of Spatiotemporal Patterns Of Surface Water Inputs In A Catchment At The Rain-Snow Transition Zone Of The Water-Limited Western United States, E. Trujillo, J. Mcnamara Jan 2023

Drivers Of Spatiotemporal Patterns Of Surface Water Inputs In A Catchment At The Rain-Snow Transition Zone Of The Water-Limited Western United States, E. Trujillo, J. Mcnamara

Geosciences Faculty Publications and Presentations

Spatial and temporal dynamics of rainfall and snowmelt (i.e., surface water inputs, SWI) control soil moisture, groundwater recharge, and streamflow at annual, seasonal, and event scales. In the rain-snow transition zone, comprising a large portion of the mountainous western United States, there is limited understanding of the sensitivity of spatiotemporal SWI dynamics across hydrologically variable water years (WYs). We modeled rainfall and snowpack dynamics in a small headwater catchment (1.8 km2) spanning the rain-snow transition in southwestern Idaho, USA, for two hydrologically distinct WYs (2011 and 2014). In wet WY 2011 and dry WY 2014, total precipitation drove …


Elastic Thermobarometry, Matthew J. Kohn, Mattia L. Mazzucchelli, Matteo Alvaro Jan 2023

Elastic Thermobarometry, Matthew J. Kohn, Mattia L. Mazzucchelli, Matteo Alvaro

Geosciences Faculty Publications and Presentations

Upon exhumation and cooling, contrasting compressibilities and thermal expansivities induce differential strains (volume mismatches) between a host crystal and its inclusions. These strains can be quantified in situ using Raman spectroscopy or X-ray diffraction. Knowing equations of state and elastic properties of minerals, elastic thermobarometry inverts measured strains to calculate the pressure-temperature conditions under which the stress state was uniform in the host and inclusion. These are commonly interpreted to represent the conditions of inclusion entrapment. Modeling and experiments quantify corrections for inclusion shape, proximity to surfaces, and (most importantly) crystal-axis anisotropy, and they permit accurate application of the more …


Pacific Northwest Streamflow Data Landscape: A Report From The 2022 Streamflow Data Roundtables, Kendra E. Kaiser Jan 2023

Pacific Northwest Streamflow Data Landscape: A Report From The 2022 Streamflow Data Roundtables, Kendra E. Kaiser

Geosciences Faculty Publications and Presentations

This project was funded by the U.S. Geological Survey Northwest Climate Adaptation Science Center to catalog the location, temporal extent and purpose of non-USGS streamflow datasets. As part of this project, roundtable meetings convened local, state and federal agencies, and nonprofits to explore the complexity of gathering and integrating the identified datasets and identify issues surrounding data-sharing across organizations.

This report synthesizes discussions from each of the state roundtable discussions convened in the spring of 2022, and highlights common challenges and needs across the region. Additional information from organizations not able to be present at the meetings were added after …


New Age Constraints On The Break-Up Of Rodinia And Amalgamation Of Southwestern Gondwana From The Choquequirao Formation In Southwestern Peru, Eben Blake Hodgin, Victor Carlotto, Francis A. Macdonald, Mark D. Schmitz, James L. Crowley Jan 2023

New Age Constraints On The Break-Up Of Rodinia And Amalgamation Of Southwestern Gondwana From The Choquequirao Formation In Southwestern Peru, Eben Blake Hodgin, Victor Carlotto, Francis A. Macdonald, Mark D. Schmitz, James L. Crowley

Geosciences Faculty Publications and Presentations

The Choquequirao Formation is a >3 km-thick amphibolite-grade succession that outcrops in the Central Andes of southern Peru. To constrain its age and tectonostratigraphic setting, detrital zircon and metamorphic zircon, titanite, and rutile U–Pb isotopic analyses were conducted. Mantle-derived c. 640 Ma detrital zircons constrain the maximum age of the lower part of the succession and 550–490 Ma metamorphic zircon domains constrain its minimum age. The absence of early Paleozoic detrital zircons suggests that deposition predated early Paleozoic orogenesis in southwestern Gondwana. The close similarity of detrital zircon age spectra to those from sediments deposited on the Arequipa basement suggests …


Social Networks Impact Flood Risk Mitigation Behavior: A Case Study Of Lidar Adoption In The Pacific Northwest, Us, Tara Pozzi, Vicken Hillis Jan 2023

Social Networks Impact Flood Risk Mitigation Behavior: A Case Study Of Lidar Adoption In The Pacific Northwest, Us, Tara Pozzi, Vicken Hillis

Human-Environment Systems Research Center Faculty Publications and Presentations

Flood risk and damage are expected to increase in the Pacific Northwest due to climate change. Light Detection and Ranging (lidar) is a remote sensing technology that generates high-resolution topographic data and can therefore produce higher accuracy floodplain maps, an important tool that communities use to assess their flood risk. Despite the promise of lidar for flood risk mitigation, both the availability of lidar data and the use of that data when available varies across the U.S. What factors drive the adoption of technology, such as lidar, for flood risk management? How can we better promote the use of technologies …


Spatiotemporal Retrievals Of Soil Moisture And Geomorphologic Data For Landslide Sites In Eastern Kentucky, Lindsey Sebastian Bryson, Daniel M. Francis Jan 2023

Spatiotemporal Retrievals Of Soil Moisture And Geomorphologic Data For Landslide Sites In Eastern Kentucky, Lindsey Sebastian Bryson, Daniel M. Francis

Civil Engineering Research Data

These data are the soil texture, land information system-based soil moisture estimates from assimilation of NASA SMAP satellite-based observations and NOAH 3.6 Land Surface Model estimates, artificial neural network machine learning code, and in-situ soil moisture measurements.


Classifying Multi-Generational Products For The Circular Economy, Buddhika M. Hapuwatte, Fazleena Badurdeen, I. S. Jawahir Jan 2023

Classifying Multi-Generational Products For The Circular Economy, Buddhika M. Hapuwatte, Fazleena Badurdeen, I. S. Jawahir

Institute for Sustainable Manufacturing Faculty Publications

Manufacturers are increasingly interested in the circular economy (CE) and potential of circular productions. To fully utilize CE, better guidance at the design stage is needed to establish closed-loop flows and prioritize higher value retaining end-of-use (EoU) practices such as reuse and remanufacture (i.e., parts harvesting). Intergenerational commonality (IC) is a method to increase EoU parts harvesting. However, closed-loop parts harvesting potential depends on the compatible timing between design generations’ production and EoU returns curves. Therefore, in this paper, we explore an approach to make an initial assessment on where IC as a closed-loop CE strategy can produce most benefit, …


Modelling Pollinator And Nonpollinator Selection On Flower Colour Variation, Brigitte Tenhumberg, Agnes S. Dellinger, Stacey D. Smith Jan 2023

Modelling Pollinator And Nonpollinator Selection On Flower Colour Variation, Brigitte Tenhumberg, Agnes S. Dellinger, Stacey D. Smith

School of Biological Sciences: Faculty Publications

1. Flower colour variation is ubiquitous within and between populations, which is why it has long been a focal point for studies of natural selection. This body of work has uncovered a wide range of selective agents, including pollinators, herbivores, and various abiotic factors. Nevertheless, we lack an integrative framework for predicting the phenotypic outcome in terms of floral pigmentation when these forces act collectively and often in opposition. 2. We here present such a framework through a model that incorporates selection on pigmentation at the vegetative phase (i.e., through survival to reproduction) and at the flowering phase (i.e., on …