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Articles 1 - 24 of 24
Full-Text Articles in Ecology and Evolutionary Biology
The Genetic And Environmental Basis For Chc Biosynthesis In Drosophila, Heather Ke Ward
The Genetic And Environmental Basis For Chc Biosynthesis In Drosophila, Heather Ke Ward
Electronic Thesis and Dissertation Repository
Cuticular hydrocarbons (CHCs) are produced by insects and primarily used to prevent desiccation. In Drosophila, certain compounds have secondary roles as infochemicals that may act during courtship to influence mate choice. Certain CHCs may stimulate courtship with heterospecifics or act to repel conspecifics. The CHC profile produced by an individual is the result of the interaction between its genetic background and the environment, though the genes that underlie species differences in CHC production and how the environment can modulate the abundance of individual compounds within a species is not well known. Here, candidate gene CG5946 was found to be …
The Solid & The Shifting: Darwinian Time, Evolutionary Form And The Greek Ideal In The Early Works Of Virginia Woolf, Joseph Monroe Kreutziger
The Solid & The Shifting: Darwinian Time, Evolutionary Form And The Greek Ideal In The Early Works Of Virginia Woolf, Joseph Monroe Kreutziger
Arts & Sciences Electronic Theses and Dissertations
ABSTRACT OF THE DISSERTATION
“The Solid & the Shifting”: Evolutionary Form, Darwinian Time, and the Greek Ideal in the Early Works of Virginia Woolf
By
Joseph Kreutziger
Doctor of Philosophy in English and American Literature
Washington University in St. Louis, 2017
Professors Melanie Micir, Robert Milder, Steven Meyer, Vincent Sherry, Zoe Stamatopoulou
_____________________________________________________________________
“Now is life very solid or very shifting?” Virginia Woolf asks in her diary of 1931, a question she claims haunts her in its contradictions. This dynamism between the solid and the shifting aspects of life and temporality is fundamental to an analysis of Woolf’s writing process. …
Review Of The Sub-Saharan Africa Species Of Dignomus And Phylogenetic Analysis Of The Bostrichoids (Coleoptera: Bostrichoidea: Ptinidae), Amelia Lesbeth Smith
Review Of The Sub-Saharan Africa Species Of Dignomus And Phylogenetic Analysis Of The Bostrichoids (Coleoptera: Bostrichoidea: Ptinidae), Amelia Lesbeth Smith
Masters Theses & Specialist Projects
Sub-Saharan Africa is home to nine described species of Dignomus Wollaston, 1862. Study and dissection of specimens has led me to the hypothesis that there are nine undocumented species in this region. Descriptions and images of the new species are presented and discussed, along with a compiled list of all described species from the Sub- Saharan region. The probable biology as geographic distributions for members of the genus are also given.
Additionally, a phylogenetic analysis of 95 species of bostrichoids using CO1 molecular data was done with a focus on the origins of Dignomus and Pseudomezium. parsimony and bayesian analyses …
The Santa Ana Speckled Dace (Rhinichthys Osculus): Phylogeography And Molecular Evolution Of The Mitochondrial Dna Control Region, James Jay Vanmeter
The Santa Ana Speckled Dace (Rhinichthys Osculus): Phylogeography And Molecular Evolution Of The Mitochondrial Dna Control Region, James Jay Vanmeter
Electronic Theses, Projects, and Dissertations
The purpose of this genetic study of the Santa Ana Speckled Dace Rhinichthys osculus was three-fold. The first goal was to characterize the molecular structure of the mtDNA control region of R. osculus. An 1143 base-pair region of the mitochondrial DNA genome, which included the complete control region was sequenced for all individuals. Analysis of the sequence data revealed that the molecular structure of the speckled dace control region was similar to the molecular structure described for other vertebrate taxa. The speckled dace control region contains three major domains, which vary in base frequency as well as in the frequency …
Oldest Skeleton Of A Plesiadapiform Provides Additional Evidence For An Exclusively Arboreal Radiation Of Stem Primates In The Palaeocene, Stephen B. Chester, Thomas E. Williamson, Jonathan I. Bloch, Mary T. Silcox, Eric J. Sargis
Oldest Skeleton Of A Plesiadapiform Provides Additional Evidence For An Exclusively Arboreal Radiation Of Stem Primates In The Palaeocene, Stephen B. Chester, Thomas E. Williamson, Jonathan I. Bloch, Mary T. Silcox, Eric J. Sargis
Publications and Research
Palaechthonid plesiadapiforms from the Palaeocene of western North America have long been recognized as among the oldest and most primitive euarchontan mammals, a group that includes extant primates, colugos and treeshrews. Despite their relatively sparse fossil record, palaechthonids have played an important role in discussions surrounding adaptive scenarios for primate origins for nearly a half-century. Likewise, palaechthonids have been considered important for understanding relationships among plesiadapiforms, with members of the group proposed as plausible ancestors of Paromomyidae and Microsyopidae. Here, we describe a dentally associated partial skeleton of Torrejonia wilsoni from the early Palaeocene (approx. 62Ma) of New Mexico, which …
Evolvability: What Is It And How Do We Get It?, Matthew Moreno
Evolvability: What Is It And How Do We Get It?, Matthew Moreno
Honors Program Theses
Biological organisms exhibit spectacular adaptation to their environments. However, another marvel of biology lurks behind the adaptive traits that organisms exhibit over the course of their lifespans: it is hypothesized that biological organisms also exhibit adaptation to the evolutionary process itself. That is, biological organisms are thought to possess traits that facilitate evolution. The term evolvability was coined to describe this type of adaptation. The question of evolvability has special practical relevance to computer science researchers engaged in longstanding efforts to harness evolution as an algorithm for automated design. It is hoped that a more nuanced understanding of biological evolution …
Human Evolution And Divine Agency, Alexandra Rakestraw
Human Evolution And Divine Agency, Alexandra Rakestraw
Dialogue & Nexus
Modern Christians often find themselves at a crossroads when confronted with the two predominant understandings of human and universal origins. Plain sense readings of Genesis lead many to believe in a historical six-day creation that occurred in the past ten thousand years while proponents on the other side of the spectrum use current scientific understanding to support a creation that occurs through evolutionary means. How one views human origins has a profound impact on one’s concept of how God works in the cosmos. In this paper, I will lay out a background to better understand the characters of Adam and …
Moral Awareness, Original Sin And The Atonement, Tanner Gregory
Moral Awareness, Original Sin And The Atonement, Tanner Gregory
Dialogue & Nexus
I will explore how evolution impacts the Christian notion of The Fall of man, and, ultimately, the atonement. Various theories of atonement in the Christian tradition generally assume universal and individual sinfulness in humanity. In some cases, this sinfulness is thought to be the result of a distinct moment of rebellion against God, and is transmitted to all of the descendants of Adam. Here, atonement involves Christ’s sacrifice as the means liberate humanity from the bondage of our sinful nature. Evolution collides with these traditional models. Instead of a creation originally void of death and later corrupted by sin, evolution …
Immunology Of The Gray Short-Tailed Opossum During Pregnancy And Prenatal Development, Victoria L. Hansen
Immunology Of The Gray Short-Tailed Opossum During Pregnancy And Prenatal Development, Victoria L. Hansen
Biology ETDs
Vertebrate species that bear live young have overcome the evolutionary challenge of maintaining both a functional adaptive immune system and viviparous life cycle. In normal pregnancy, viviparous mothers are able sustain and nourish a fetus that is genetically half non-self without mounting an immunological attack. In 1953 Sir Peter Medawar brought attention to the “enigma of the fetal graft” and immunologists have been puzzling out the intricacies of fetal tolerance ever since. Although viviparity has evolved in all jawed vertebrate lineages aside from Aves, the vast majority of reproductive immunology research has been limited to eutherian mammals. There are insights …
Answers To Common Misconceptions About Biological Evolution, Leah M. Abebe, Blake Bartels, Kaitlyn M. Caron, Adam M. Gleeson, Samuel N. Johnson, Tyler J. Kluza, Nicholas W. Knopik, Kristen N. Kramer, Masiel S. Maza, Kaitlyn A. Stava, Kaitlyn Sullivan, Jordan T. Trimble, Robert M. Zink , Editor
Answers To Common Misconceptions About Biological Evolution, Leah M. Abebe, Blake Bartels, Kaitlyn M. Caron, Adam M. Gleeson, Samuel N. Johnson, Tyler J. Kluza, Nicholas W. Knopik, Kristen N. Kramer, Masiel S. Maza, Kaitlyn A. Stava, Kaitlyn Sullivan, Jordan T. Trimble, Robert M. Zink , Editor
Papers in Evolution
“When you have an established scientific emergent truth, it is true whether or not you believe in it.” Neil deGrasse Tyson, Science in America. Very few people outside of a particular scientific discipline can actually say they understand it, because most do not have the training to “speak the language.” They are then not particularly bothered by its tenets and predictions. Of all the major branches of science, however, evolutionary biology is an exception to this generalization because even though people are not versed in the field, they sometimes have a negative, knee-jerk objection. This objection is often because they …
Evolution: A Divine Interaction Between God And Creation, Hanna V. Larracas
Evolution: A Divine Interaction Between God And Creation, Hanna V. Larracas
Selected Honors Theses
The purpose of this paper is to provide a framework through relational theology for understanding the randomness evident in genetic variation which is an element within evolution. I propose that evolution can be incorporated into a theology of creation by placing evolution in context of the interaction of love between God and creation when interpreted through a framework of relational theology. Relational theology, as engaging God as primarily self-giving and holistically hospitable (towards God’s self in the Trinity and towards creation), provides space for a theological understanding of randomness genetic variation and mutation within the evolutionary process. Chapter 1 discusses …
Fundamental Theorems Of Evolution, David C. Queller
Fundamental Theorems Of Evolution, David C. Queller
Biology Faculty Publications & Presentations
Evolutionary biology is undergirded by an extensive and impressive set of mathematical models. Yet only one result, Fisher’s theorem about selection and fitness, is generally accorded the status of a fundamental theorem. I argue that although its fundamental status is justified by its simplicity and scope, there are additional results that seem similarly fundamental. I suggest that the most fundamental theorem of evolution is the Price equation, both because of its simplicity and broad scope and because it can be used to derive four other familiar results that are similarly fundamental: Fisher’s average-excess equation, Robertson’s secondary theorem of natural selection, …
A Model Of The Use Of Evolutionary Trees (Muet) To Inform K-14 Biology Education, Yi Kong, Ankita Thawani, Trevor R. Anderson, Nancy Pelaez
A Model Of The Use Of Evolutionary Trees (Muet) To Inform K-14 Biology Education, Yi Kong, Ankita Thawani, Trevor R. Anderson, Nancy Pelaez
PIBERG Publications
Evolutionary trees are powerful tools used in modern biological research, and also commonly used in textbooks and classroom instruction. Studies have shown that K-14 students have difficulties interpreting evolutionary trees. To improve student learning about this topic, it is essential to teach them how to understand and use trees like professional biologists. Unfortunately, few currently used teaching frameworks for evolution instruction are designed for this purpose. In this study we developed the Model of the Use of Evolutionary Trees (MUET), a conceptual model that characterizes how evolutionary trees were used by professional biologists as represented in their research publications. The …
Climate Dynamics, Invader Fitness, And Ecosystem Resistance In An Invasion-Factor Framework, Stephen L. Young, David R. Clements, Antonio Ditommaso
Climate Dynamics, Invader Fitness, And Ecosystem Resistance In An Invasion-Factor Framework, Stephen L. Young, David R. Clements, Antonio Ditommaso
West Central Research and Extension Center, North Platte
As researchers and land managers increasingly seek to understand plant invasions and the external (climate) and internal (plant genetics) conditions that govern the process, new insight is helping to answer the elusive question of what makes some invasions successful and others not. Plant invasion success or failure is based on a combination of evolutionary and ecological processes. Abiotic (e.g., climate) and biotic (e.g., plant competition) conditions in the environment and plant genetics (e.g., fitness) combine in either decreasing or increasing invasion, yet it has proven challenging to know exactly which of these conditions leads to success for a given species, …
The Emotional Brain Of Fish, Sonia Rey Planellas
The Emotional Brain Of Fish, Sonia Rey Planellas
Animal Sentience
Woodruff (2017) analyzes structural homologies and functional equivalences between the brains of mammals and fish to understand where sentience and social cognition might reside in teleosts. He compares neuroanatomical, neurophysiological and behavioural correlates. I discuss current advances in the study of fish cognitive abilities and emotions, and advocate an evolutionary approach to the underlying basis of sentience in teleosts.
Consciousness Is Not Inherent In But Emergent From Life, Jon Mallatt, Todd E. Feinberg
Consciousness Is Not Inherent In But Emergent From Life, Jon Mallatt, Todd E. Feinberg
Animal Sentience
Reber’s theory of the cellular basis of consciousness (CBC) is right to emphasize that we should study consciousness (sentience) in its simplest form, taking its evolution into account. However, not enough evidence is presented to support CBC’s unorthodox claim that even simple, one-celled organisms are conscious. As pointed out by other commentators, the CBC seems to be based on outdated ideas about evolution and does not acknowledge that consciousness could be an evolutionary novel feature. Such emergent features are abundant in living organisms. We review our own emergentist solution, in which consciousness evolved in the elaborating nervous systems of the …
Cognitive Continuity In Cognitive Dissonance, David R. Brodbeck, Madeleine I. R. Brodbeck
Cognitive Continuity In Cognitive Dissonance, David R. Brodbeck, Madeleine I. R. Brodbeck
Animal Sentience
Zentall’s (2016) model of cognitive dissonance is compatible with cognitive continuity between humans and nonhumans. It may help explain cognitive dissonance-like behavior in many species, including humans. It is also consistent with Tinbergen’s (1963) ‘four whys’ in ethological explanation.
Perspectives Provided By Leopard And Other Cat Genomes: How Diet Determined The Evolutionary History Of Carnivores, Omnivores, And Herbivores, Soonok Kim, Yun Sung Cho, Jong Bhak, Stephen J. O'Brien, Joo-Hong Yeo
Perspectives Provided By Leopard And Other Cat Genomes: How Diet Determined The Evolutionary History Of Carnivores, Omnivores, And Herbivores, Soonok Kim, Yun Sung Cho, Jong Bhak, Stephen J. O'Brien, Joo-Hong Yeo
Biology Faculty Articles
Recent advances in genome sequencing technologies have enabled humans to generate and investigate the genomes of wild species. This includes the big cat family, such as tigers, lions, and leopards. Adding the first high quality leopard genome, we have performed an in-depth comparative analysis to identify the genomic signatures in the evolution of felid to become the top predators on land. Our study focused on how the carnivore genomes, as compared to the omnivore or herbivore genomes, shared evolutionary adaptations in genes associated with nutrient metabolism, muscle strength, agility, and other traits responsible for hunting and meat digestion. We found …
Darwinian Evolutionary Theory And Constructions Of Race In Nazi Germany: A Literary And Cultural Analysis Of Darwin’S Works And Nazi Rhetoric, Emily M. Wollmuth
Darwinian Evolutionary Theory And Constructions Of Race In Nazi Germany: A Literary And Cultural Analysis Of Darwin’S Works And Nazi Rhetoric, Emily M. Wollmuth
Departmental Honors Projects
First published in 1856, Charles Darwin’s Origin of Species is one of the most impactful scientific writings in history. While the influence of Darwinian evolutionary theory on historical events has been widely studied, no single work of scholarship has previously combined close reading of Origin’s representations of “race” with analysis of how those constructions of “racial” difference are (mis)translated across the cultural discourses of the eugenics movement and Nazi Germany. Through comparative cultural studies and close literary analysis of Hitler’s Mein Kampf and Darwin’s works—including Origin, Descent of Man, and Voyage of the Beagle, this paper examines how evolutionary …
Primate Proteomic Composition Of Seminal Plasma And Prostate-Specific Transglutaminase Activity In Relation To Sexual Selection., Amanda M.C. Zielen
Primate Proteomic Composition Of Seminal Plasma And Prostate-Specific Transglutaminase Activity In Relation To Sexual Selection., Amanda M.C. Zielen
Electronic Theses and Dissertations
Humans (Homo sapiens), chimpanzees (Pan troglodytes), and gorillas (Gorilla gorilla) have diverse mating systems with varying levels of sperm competition. Several seminal plasma genes have been claimed to evolve under positive selection, while others are altered or lost. This study aims to identify biologically relevant differences among seminal plasma proteomes of primates in relation to mating systems and previous genomic studies. Seminal plasma from three individuals of each species were run in triplicate in shotgun liquid chromatography – tandem mass spectrometry (LC-MS/MS) and confirmed with Western blots. Over 7,000 peptides were identified across all …
Evolution's Error: How Human Nature Went Awry, Richard Grigg
Evolution's Error: How Human Nature Went Awry, Richard Grigg
Philosophy, Theology and Religious Studies Faculty Publications
The article offers the author's insights related to biological evolution and humanism. Topics include the failure and error of evolution to provide human with resources for life satisfaction, a scenario which presents humanism and evolution wherein a promotion competition between two employees was featured, and the study by neurologist Sigmund Freud about the human brain.
The Development And Expression Of Canine Emotion, Allison L. Martin
The Development And Expression Of Canine Emotion, Allison L. Martin
Animal Sentience
In her review of canine emotions, Kujala (2017) discusses how humans often attribute emotions such as fear, love, and jealousy to their canine companions. This attribution is often dismissed as anthropomorphism, suggesting that only humans can possess these emotions. I argue that emotions are not something we possess but features of certain behavioral patterns. Both human and canine emotions arise through evolution and conditioning; examining their development and expression may lead to new insights about both canine and human behavior.
G:, Taylor Lafe Cantrall
G:, Taylor Lafe Cantrall
Senior Projects Spring 2017
Senior Project submitted to The Division of Languages and Literature of Bard College.
Evolutionary Linkage Of Mimetic And Non-Mimetic Color Traits In A Coral Snake Mimicry Complex, John D. Curlis Jr
Evolutionary Linkage Of Mimetic And Non-Mimetic Color Traits In A Coral Snake Mimicry Complex, John D. Curlis Jr
Electronic Theses and Dissertations
Color polymorphism in aposematic mimicry systems is a perplexing phenomenon for evolutionary biologists, as theoretically the benefits of converging on a model phenotype should constrain the evolution of phenotypic diversity in these systems (i.e., color polymorphism should not occur). Nevertheless, color polymorphism in mimicry systems is prevalent throughout many taxa. In some of these systems, the evolution of color polymorphism results in the existence of non-mimetic morphs, such as those that are cryptic. The case of ground snakes (Sonora semiannulata) is unique in that color polymorphism encompasses both mimetic and cryptic morphs, as well as individual mimetic and …