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Articles 31 - 60 of 144

Full-Text Articles in Ecology and Evolutionary Biology

Final Report Floating Upwelling System Harvest Road Oceans, Robert Michael, Scott Bennett Jan 2022

Final Report Floating Upwelling System Harvest Road Oceans, Robert Michael, Scott Bennett

Fisheries Occasional Publications

A Floating Upwelling System or FLUPSY is a mechanical system for the culture of seed stock during the nursery stage of commercial bivalve production.


Can Gdp Be Predictive Of Fertility Rates In Sweden?, Hannah Coleman Jan 2022

Can Gdp Be Predictive Of Fertility Rates In Sweden?, Hannah Coleman

Honors Program: Senior Projects (Public)

Fertility rates in a country vary and can be influenced by numerous different aspects of an individual’s life and the society in which they live. One aspect that may influence fertility rates at the national level is the gross domestic product (GDP). GDP is an indicator of a country’s economic productivity. Because fertility is linked to both economic development and individual resources, GDP may be a useful indicator of fertility rates. If so, knowing or predicting GDP could be used to project the fertility rates of a population years into the future. To determine if a reasonable connection between GDP …


Density Dependent Growth Of Pseudomonas Fluorescens In The Presence And Absence Of C. Elegans Predation In Liquid Media, Jack Landmann Apr 2021

Density Dependent Growth Of Pseudomonas Fluorescens In The Presence And Absence Of C. Elegans Predation In Liquid Media, Jack Landmann

Honors Theses

The purpose of this study was to understand the predator-prey relationship between C. elegans worms and P. fluorescens bacteria in liquid media. We were aiming to create a predation model of the relationship between these two species.

This study was performed through three experiments. Using 96-well plates, we were able to measure the change in optical density (OD) of these wells and calculate the growth rate. This growth rate was then graphed and analyzed. The first experiment contained P. fluorescens and KB liquid media, this study demonstrated that the bacterial population has a carrying capacity. We were also able to …


Microhabitats In An Urban Greenspace: Function In The Beauty, Kalie Schultz Apr 2021

Microhabitats In An Urban Greenspace: Function In The Beauty, Kalie Schultz

Honors Projects

This project combines science with art, with a focus on microhabitats in a unique natural space in an urban area. It is set in the Highlands Nature Preserve and the mediums used are photography and digital illustration. The goal of the project is to bring the viewer in from a wide, landscape perspective into a more close and detailed perspective of the multiple microhabitats that exist in the nature preserve. It shows how beauty can be hiding in plain sight for anyone to see if they look close enough. It also aims to show how the beauty is not just …


Synopsis Of The Tribe Platynini In New Zealand (Coleoptera: Carabidae), André Larochelle, Marie-Claude Larivière Mar 2021

Synopsis Of The Tribe Platynini In New Zealand (Coleoptera: Carabidae), André Larochelle, Marie-Claude Larivière

Insecta Mundi

The tribe Platynini (Coleoptera: Carabidae: Harpalinae) is revised for New Zealand. Eight genera and forty-three species are recognized.

Four genera and sixteen species are described as new: Ctenognathus davidsoni Larochelle and Larivière new species, Ctenognathus earlyi Larochelle and Larivière new species, Ctenognathus garnerae Larochelle and Larivière new species, Ctenognathus hoarei Larochelle and Larivière new species, Ctenognathus kaikoura Larochelle and Larivière new species, Ctenognathus marieclaudiae Larochelle new species, Ctenog­nathus perumalae Larochelle and Larivière new species, Ctenognathus takahe Larochelle and Larivière new species, Ctenognathus tawanui Larochelle and Larivière new species, Ctenognathus tepaki Larochelle …


Effects Of Varying Heat Indexes On Habitat Utilization And Behavior On Captive Red-Ruffed Lemurs (Varecia Rubra), Jeffrey Gammon Mar 2021

Effects Of Varying Heat Indexes On Habitat Utilization And Behavior On Captive Red-Ruffed Lemurs (Varecia Rubra), Jeffrey Gammon

The Pegasus Review: UCF Undergraduate Research Journal

The two captive red-ruffed lemurs (Varecia rubra) at the Central Florida Zoo experienced a more temperate climate and utilized a differing habitat than they would in their native range, Madagascar. Proper management of the species in captivity is crucial for its long-term survival as they are critically endangered. Over a four month period, heat index temperature, lemur behavior, and habitat utilization data were collected via an instantaneous scan sample. Variables were analyzed to characterize how variations in heat index alter habitat utilization and behavior of the captive lemurs. As the heat index increased, habitat use became more restricted …


Observational Study Of Two Ex Situ North American River Otters (Lontra Canadensis), Julia Rifenberg Feb 2021

Observational Study Of Two Ex Situ North American River Otters (Lontra Canadensis), Julia Rifenberg

The Pegasus Review: UCF Undergraduate Research Journal

Zoos enable the ability to study how captive conditions impact the behaviors of animals. In this study, I observed two North American river otters housed at the Central Florida Zoo to evaluate behavioral changes after the male had been removed from the female for a month-long medical examination. The aim of this study was to 1) determine if mating behaviors were still occurring between the two river otters following the male’s removal and 2) to assess the welfare of the male and female river otters in captivity by observing their interactions and individual behaviors. Observed behaviors were compared to documented …


Decreased Cortisol Among Hikers Who Preferentially Visit And Value Biodiverse Riparian Zones, Ellie Opdahl, Kathryn Demps, Julie A. Heath Jan 2021

Decreased Cortisol Among Hikers Who Preferentially Visit And Value Biodiverse Riparian Zones, Ellie Opdahl, Kathryn Demps, Julie A. Heath

Anthropology Faculty Publications and Presentations

While outdoor recreationists often report increases to their well-being for time spent in nature, the mechanisms through which local ecologies affect human health have been difficult to quantify, and thus to manage. We combine data from pre-post salivary cortisol measures, GPS tracks, visitor photos, and surveys from 88 hikers traversing several types of landscape within peri-urban public lands in southwest Idaho, USA. We find that time in biodiverse riparian areas and areas of perceived aesthetic value correlates with decreases in salivary cortisol and improved well-being for hikers. Wildlife sightings were not associated with changes in salivary cortisol, but were associated …


Will There Be Changes In Sexually Differentiated Behaviors In Mice Manipulated For The Sry Gene As They Mature Into Adultood?, Subin Joo Jan 2021

Will There Be Changes In Sexually Differentiated Behaviors In Mice Manipulated For The Sry Gene As They Mature Into Adultood?, Subin Joo

CMC Senior Theses

Sexually differentiated behavior has been shown to be affected by both genes and hormones. The discovery of the SRY gene, which codes for the development of testes, lead to the development of the Four Core Genotypes model of mice, and the separation of sex chromosomes and its resulting gonadal hormones. Using the FCG model, this study aims to look at the development of sexually differentiated behavior in mice, and track how it changes throughout their life. FCG mice will be divided into individual and social housing, and repeated experiments carried out to test their reaction to both intact female and …


Determining Environmental Changes Using Time Lapse Photography, Emily Lemasters Jan 2021

Determining Environmental Changes Using Time Lapse Photography, Emily Lemasters

Williams Honors College, Honors Research Projects

This paper aims to use photographs throughout several years to observe, examine, and make conclusions on changes occurring at different areas of the Bath Nature Preserve. Throughout the years 2013-2021, photographs have been captured at roughly the same angle at multiple locations in the preserve. These photographs will be placed into a time lapse video and examined to physically see how the environment is changing. Changes to the environment could be natural or as a result of outside factors. By examining these changes, it can be determined if alterations need to be made to help the environment thrive. Two specific …


Sensory Ecology Bio 522, Michael Cerbo Sep 2020

Sensory Ecology Bio 522, Michael Cerbo

Library Impact Statements

No abstract provided.


Population Genetics Of A Recent Range Expansion By The Southern Pine Beetle, Dendroctonus Frontalis, Into The Northeastern United States, Megan Stubbs May 2020

Population Genetics Of A Recent Range Expansion By The Southern Pine Beetle, Dendroctonus Frontalis, Into The Northeastern United States, Megan Stubbs

Honors Theses

Population genetics as a field of study aims to determine the genetic variation among individuals in a population, and differences among populations. Certain population genetic analyses can provide such information and be used to better understand the biological aspects to a species’ expansion beyond its native range. The southern pine beetle (SPB), Dendroctonus frontalis, has become an invasive pest to pine forests in northeastern United States with its recent range expansion. Nine microsatellite loci were first developed and then used in analyses. To determine what the genetic variation is among individuals in SPB populations across its entire range, including …


A Genomic Analysis Of Bobcat Populations In North America With A Comparison To The Canada Lynx: An Assessment Of Local Adaptation To Unique Ecoregions And Phylogeography, Jennifer C. Broderick May 2020

A Genomic Analysis Of Bobcat Populations In North America With A Comparison To The Canada Lynx: An Assessment Of Local Adaptation To Unique Ecoregions And Phylogeography, Jennifer C. Broderick

Electronic Theses and Dissertations

Bobcats (Lynx rufus) are an ecologically and genetically diverse species with a large contiguous range throughout North America. The species not only has a wide array of phenotypic variation compared to other mammals, but shows marked adaptability across ecozones with differing ecological influences. It is these various selective pressures in distinctive parts of the continent that have likely led to localized adaptations within the bobcat metapopulations. The species is also marked by its ability to maintain connectivity and populations in anthropogenically developed areas, an advantage it has over other felids, including its close relative the Canada lynx ( …


Investigating The Effects Of Temperature On Lesser Celandine, Regina Bellian Apr 2020

Investigating The Effects Of Temperature On Lesser Celandine, Regina Bellian

The Downtown Review: An Interdisciplinary Journal Written and Peer-Reviewed by Mandel Honors College Students at Cleveland State University

This paper explores invasive species Ficaria verna (Lesser celandine) and the effects of temperature on its growth. Trials were completed with two treatments, 13OC cold temperature and 20OC ambient temperature. Germinated bulbils of Lesser celandine were planted on February 15, 2017 and placed in their respective growing chambers. The plants were watered weekly and monitored for growth until harvest on March 29, 2017. Upon harvest, the plants’ height, largest leaf diameter and biomass were measured after extraction from soil and the removal of the leftover soil debris. Average height was found to be 11.66cm for the cold treatment and 5.14cm …


Teaching Natural And Artificial Selection In Production Agriculture, Madhav P. Nepal, Clayton W. Scott Mar 2020

Teaching Natural And Artificial Selection In Production Agriculture, Madhav P. Nepal, Clayton W. Scott

iLEARN Teaching Resources

In this lesson, students will learn how natural selection and artificial selection impact both production agriculture and biological sciences. A natural selection is a mechanism that favors heritable traits that increase species survival and reproduction. Artificial selection is a selective breeding, where humans select for desirable traits in agricultural products.


The Bioethical Significance Of “The Origin Of Man’S Ethical Behavior” (October 1941, Unpublished) By Ernest Everett Just And Hedwig Anna Schnetzler Just, Theodore Walker Jr. Jan 2020

The Bioethical Significance Of “The Origin Of Man’S Ethical Behavior” (October 1941, Unpublished) By Ernest Everett Just And Hedwig Anna Schnetzler Just, Theodore Walker Jr.

Journal of the South Carolina Academy of Science

Abstract –

E. E. Just (1883-1941) is an acknowledged “pioneer” in cell biology, and he is perhaps the pioneer in study of egg cell fertilization. Here we discover that Just also made pioneering contributions to general biology and evolutionary bioethics.

Within Just’s published contributions to observational cell biology, there are substantial fragments of his theory of ethical behavior, a theory with roots in cell biology. In addition to such previously available fragments, Just’s fully developed theory is now available. This recently discovered unpublished book-length manuscript argues for the biological origins of ethical behavior (evolving from cells to humans, within a …


Effects Of A Neonicotinoid Insecticide On The Growth Of Honey Bee Gut Microbes, Macee Mitchell, Daniel Franzese, Taylor Morales, Shane Lucht, Jesse Steele, Jenifer Walke Jan 2020

Effects Of A Neonicotinoid Insecticide On The Growth Of Honey Bee Gut Microbes, Macee Mitchell, Daniel Franzese, Taylor Morales, Shane Lucht, Jesse Steele, Jenifer Walke

2020 Symposium Posters

The gut microbiome plays an essential role in the overall health of organisms. However, the presence and abundance of these microbes may be altered by environmental factors, such as exposure to pesticides. The goals of this project were to understand 1) the prevalence of pesticide residues in honey bees in eastern Washington, and 2) the impact of pesticides to the honey bee gut microbiome. Accordingly, we tested bees from 24 hives among six sites across eastern Washington. High-performance liquid chromatography-mass spectrometry (HPLC-MS) was used to detect the presence and concentration of six commonly used agricultural pesticides: Carbaryl, Chlorpyrifos, Coumaphos, Cypermethrin, …


The Evolution Of Dragons, Laura J. Mayfield Jan 2020

The Evolution Of Dragons, Laura J. Mayfield

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Dragons have been depicted in human art as early as 4500 BCE. For centuries, these fantasy creatures have inspired countless folk and fantasy tales, as well as appearing in the art of different cultures around the world. Now there are thousands of different depictions of these huge, flying, fire-breathing lizards, but are any of them possible? In this study, I reference peer-reviewed scientific articles, phylogenetic analysis, and paleoart studies to create biologically-sound dragons. Basing the dragon lineage on a real branch of webbed-winged scansoriopterygids—an extinct family of climbing and gliding maniraptoran dinosaurs—I explored the possible wing-structure, fire-breathing abilities, and effects …


Mammal Species Inventory Using Various Trapping Methods In Zone 4 Of Billy Barquedier National Park, Belize During Rainy Season, Mersady Redding Dec 2019

Mammal Species Inventory Using Various Trapping Methods In Zone 4 Of Billy Barquedier National Park, Belize During Rainy Season, Mersady Redding

Animal Science Undergraduate Honors Theses

Belize is a small country, but it is extremely ecologically diverse. Based on the few studies conducted in Belize, the abundance of mammals is low but diversity is high. Particular findings note the number and identity of species differed between four sites in the Maya Mountains of Belize, indicating that a data set from a single site is not representative of the Neotropical region. Insufficient data is available to estimate current species richness of many areas in Belize, including Billy Barquedier National Park (BBNP). The objective of this study was to explore trapping and documentation methods of terrestrial mammals in …


Artful Nature And The Legacy Of Maria Sibylla Merian, Emily N. Roush, Shannon R. Zeltmann, Felicia M. Else, Kay Etheridge, Shannon Egan Oct 2019

Artful Nature And The Legacy Of Maria Sibylla Merian, Emily N. Roush, Shannon R. Zeltmann, Felicia M. Else, Kay Etheridge, Shannon Egan

Schmucker Art Catalogs

The exhibition Artful Nature and the Legacy of Maria Sibylla Merian celebrates the skills and influences of a remarkable woman from seventeenth-century Europe. Curated by Emily Roush ’21 and Shannon Zeltmann ’21 with the guidance of Professors Kay Etheridge (Biology) and Felicia Else (Art History), Emily and Shannon selected the prints, organized them into categories, and carried out research on them, much of which was relatively obscure and would have been challenging even for graduate students.

Maria Sibylla Merian lived and worked in a time of vibrant intersections of art and science in Europe. Her images of insects and plants …


Traffic Noise And Sexual Selection: Studies Of Anthropogenic Impact On Bird Songs And Undergraduate Student Reasoning Of Evolutionary Mechanisms, Sarah Spier Aug 2019

Traffic Noise And Sexual Selection: Studies Of Anthropogenic Impact On Bird Songs And Undergraduate Student Reasoning Of Evolutionary Mechanisms, Sarah Spier

School of Natural Resources: Dissertations, Theses, and Student Research

Humans have transformed much of the natural landscape and are continuing to do so at an accelerated rate, compromising natural areas that serve as important habitat for many species. Roads impact much of the environment as they fragment habitat and introduce traffic noise into the acoustic environment, deferentially affecting wildlife in roadside habitat. I explored how traffic noise affects the detection of birds based on whether their vocalizations were masked by traffic noise. Masked species detection was not affected by an increase in traffic noise amplitude, while there was a negative effect of traffic noise amplitude on unmasked species detection, …


The Role Of Oxytocin On Social Behavior Associated With The Formation Of A Social Pair-Bond In The Socially Monogamous Convict Cichlid (Amatitlania Nigrofasciata), Christopher Garcia May 2019

The Role Of Oxytocin On Social Behavior Associated With The Formation Of A Social Pair-Bond In The Socially Monogamous Convict Cichlid (Amatitlania Nigrofasciata), Christopher Garcia

Graduate Theses

The mechanisms for monogamy have evolved several times throughout history across various taxa in accordance with selective pressures. In vertebrates, monogamy is facilitated by the formation and the maintenance of social pair-bonds between mates. Social pair-bonds are a form of selective attachment that require complex neurobiological pathways in order to develop and continue. These neurobiological pathways are often regulated by neuroendocrine mechanisms, such as the release of the two neuroendocrine nonapeptides, oxytocin and arginine vasopressin, in specific parts of the brain or body. These neuroendocrine peptides play a big role in social and sexual behaviors. In prairie voles (Microtus ochrogaster) …


Zero Textbook Cost Syllabus For Env 3009/4900 (Conservation Biology And Sustainable Development), Stephen Gosnell Apr 2019

Zero Textbook Cost Syllabus For Env 3009/4900 (Conservation Biology And Sustainable Development), Stephen Gosnell

Open Educational Resources

Conservation biology is an interdisciplinary topic that explores how we can protect and maintain natural areas. Due to the resources we take and impacts we have on natural environments, this field is directly related to restoration ecology (restoring natural areas) and sustainable development/natural resource management. We will explore the basis for these related fields from an ecological, social, legal, and cultural perspective, as all conservation and management projects take place in the larger human landscape. We will consider how we measure biodiversity, why it matters, why is it is threatened, and how we can manage (protect, restore, maintain, use) it …


Coral Reef Ecology Bio 465x, Michael Cerbo Feb 2019

Coral Reef Ecology Bio 465x, Michael Cerbo

Library Impact Statements

No abstract provided.


Transgenerational Plasticity Is Sex-Dependent And Persistent In Yellow Moneyflower (Mimulus Guttatus), Kayla Akkerman Jan 2019

Transgenerational Plasticity Is Sex-Dependent And Persistent In Yellow Moneyflower (Mimulus Guttatus), Kayla Akkerman

All Master's Theses

Transgenerational phenotypic plasticity, whereby environmental cues experienced by parents alter the phenotype of their progeny, has now been documented in diverse organisms. Transmission of environmentally determined responses is known to occur through both maternal and paternal gametes, but the underlying mechanisms have rarely been compared. In addition, the persistence of induction over multiple generations appears to vary widely but has been characterized for relatively few systems. Yellow monkeyflower (Mimulus guttatus) is known to exhibit transgenerational induction of increased glandular trichome production in response to simulated insect damage. Here we test for differences between maternal and paternal transmission of …


City Limits: Heat Tolerance Is Influenced By Body Size And Hydration State In An Urban Ant Community, Dustin Jerald Johnson Jan 2019

City Limits: Heat Tolerance Is Influenced By Body Size And Hydration State In An Urban Ant Community, Dustin Jerald Johnson

University of the Pacific Theses and Dissertations

Cities are rapidly expanding, and global warming is intensified in urban environments due to the urban heat island effect. Therefore, urban animals may be particularly susceptible to warming associated with ongoing climate change. Thus, I used a comparative and manipulative approach to test three related hypotheses about the determinants of heat tolerance or critical thermal maximum (CTmax) in urban ants—specifically, that (1) body size, (2) hydration status, and (3) preferred micro-environments influence CTmax. I further tested a fourth hypothesis that native species are particularly physiologically vulnerable in urban environments. I manipulated water access and determined CTmax for 11 species common …


Reconciling Evolution In A Biology And Theology Classroom, Jamie Jensen Jan 2019

Reconciling Evolution In A Biology And Theology Classroom, Jamie Jensen

ScholarsArchive Data

Data collected from Biology and Theology classes before and after a reconciliation lesson.


Zero Textbook Cost Syllabus For Env 1004 (Fundamentals Of Ecology-Lab), Jennifer Zhu Aug 2018

Zero Textbook Cost Syllabus For Env 1004 (Fundamentals Of Ecology-Lab), Jennifer Zhu

Open Educational Resources

Fundamentals of Ecological Research is a hands-on course designed to teach students the basic concepts and methodologies used in the field of ecology. The significance of ecological research to current environmental issues, both local and global, will be stressed throughout the course.

By the end of this course, you should be able discuss the complex linkages among biotic and abiotic factors that impact natural communities, explain how these factors may be measured, and predict impacts of change.


Zero Textbook Cost Syllabus For Env 1003 (Fundamentals Of Ecology-Lecture), Mukesh Gautam Aug 2018

Zero Textbook Cost Syllabus For Env 1003 (Fundamentals Of Ecology-Lecture), Mukesh Gautam

Open Educational Resources

Fundamentals of Ecology explores ecological characteristics and ecosystem processes through an evolutionary context. The course will demonstrate the interdisciplinary nature of the field of ecology by highlighting its significance to current environmental issues and the interconnectedness of the environment around us.


Zero Textbook Cost Syllabus For Env 1004 (Fundamentals Of Ecology-Lab), Mukesh Gautam Aug 2018

Zero Textbook Cost Syllabus For Env 1004 (Fundamentals Of Ecology-Lab), Mukesh Gautam

Open Educational Resources

Fundamentals of Ecological Research is a hands-on course designed to teach students the basic concepts and methodologies used in the field of ecology. The significance of ecological research to current environmental issues, both local and global, will be stressed throughout the course.