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Articles 31 - 60 of 159
Full-Text Articles in Evolution
Hind Wing Eyespots Of Brassolini Butterflies (Lepidoptera, Nymphalidae): Evolutionary Diversification And Functions In Anti-Predator Defense And Mating Behavior, Logan Crees
LSU New Orleans Theses and Dissertations
Ventral hind wing eyespots are prominent pattern elements in Brassolini butterflies, likely functioning in predator-prey interactions and reproductive activities. Caligo and Opsiphanes differ in male mate-seeking behaviors and it has been suggested that Caligo females use the male cua1 eyespot as a mate-locating cue, but Opsiphanes females do not seem to do so. We predict Caligo males should have larger eyespots than congeneric females, but the sexes would not differ in eyespot size in Opsiphanes. Our analyses supported both these predictions. Displacing the eyespot to the center of the wing makes eyespots more conspicuous, we asked if eyespot position …
Interrelationships Among Monorchiid Trematodes With Special Emphasis On Some Northwestern Atlantic Genera, Apryle Panyi
Interrelationships Among Monorchiid Trematodes With Special Emphasis On Some Northwestern Atlantic Genera, Apryle Panyi
Master's Theses
The Monorchiidae Odhner, 1911 is a cosmopolitan family of flukes (Trematoda: Digenea) comprising species that parasitize the digestive tract of estuarine and marine fishes as adults. Compared with other oceans, recent morphological or molecular taxonomic work conducted on monorchiid species from the northwestern Atlantic Ocean has been sparse (Manter, 1931; Overstreet, 1969; Andres et al., 2018; Wee et al., 2018, 2019, 2020). Therefore, the present work investigated the interrelationships of some monorchiids from the northwestern Atlantic Ocean with emphasis on several genera and investigated if Lasiotocus minutus (Manter, 1931) Thomas, 1959 constitutes a complex of cryptic species. New morphological and …
Consider The Agent In The Arthropod, Nicolas Delon, Peter Cook, Gordon Bauer, Heidi Harley
Consider The Agent In The Arthropod, Nicolas Delon, Peter Cook, Gordon Bauer, Heidi Harley
Animal Sentience
Whether or not arthropods are sentient, they can have moral standing. Appeals to sentience are not necessary and retard progress in human treatment of other species, including invertebrates. Other increasingly well-documented aspects of invertebrate minds are pertinent to their welfare. Even if arthropods are not sentient, they can be agents whose goals—and therefore interests—can be frustrated. This kind of agency is sufficient for moral status and requires that we consider their welfare.
Five New Species Of Euscorpius Thorell, 1876 (Scorpiones: Euscorpiidae) From Albania, Greece, North Macedonia, And Serbia, František Kovařík, František Šťáhlavský
Five New Species Of Euscorpius Thorell, 1876 (Scorpiones: Euscorpiidae) From Albania, Greece, North Macedonia, And Serbia, František Kovařík, František Šťáhlavský
Euscorpius
Five new species are described: Euscorpius bonacinai sp. n. (Albania), E. janstai sp. n. (North Macedonia), E. kabateki sp. n. (Greece), E. sadileki sp. n. (Serbia), and E. scheraboni sp. n. (Greece), fully complemented with color photographs. New species are distinguished from all other species of the genus on the basis of five taxonomic characters. Two other new characters, shape of the pedipalp chela fingers and number of chromosomes, are presented and discussed. In addition to the analyses of external morphology, we also describe karyotypes of two species: E. janstai sp. n. (2n=112) and E. sadileki sp. n. (2n=90).
Do Beetles Have Experiences? How Can We Tell?, Matt Cartmill
Do Beetles Have Experiences? How Can We Tell?, Matt Cartmill
Animal Sentience
We attribute consciousness to other humans because their anatomy and behavior resembles our own and their verbal descriptions of subjective experiences correspond to ours. Nonhuman mammals have somewhat humanlike behavior and anatomy, but without the verbal descriptions. Their sentience is therefore open to Cartesian doubt. Robot "minds" lack humanlike behavior and anatomy, and so their sentience is generally discounted no matter what sentences they generate. Invertebrates lack both neurological similarity and language. Although it may be safest in making moral judgments to assume that some invertebrates are sentient, cogent reasons for thinking so must await an objective causal explanation for …
Avoiding Anthropocentrism In Evolutionarily Inclusive Ethics, Simon Fitzpatrick
Avoiding Anthropocentrism In Evolutionarily Inclusive Ethics, Simon Fitzpatrick
Animal Sentience
Mikhalevich & Powell are to be commended for challenging the “invertebrate dogma” that invertebrates are unworthy of ethical concern. However, developing an evolutionarily inclusive ethics requires facing some of the more radical implications of rejecting hierarchical scala naturae and human-centered conceptions of the biological world. In particular, we need to question the anthropocentric assumptions that still linger in discussions like these.
Zones Of Precaution, Jonathan Birch
Zones Of Precaution, Jonathan Birch
Animal Sentience
My commentary focusses on Mikhalevich & Powell’s criticisms of the Animal Sentience Precautionary Principle. I emphasize the pragmatic nature of my rationale for proposing that, rather than extending the scope of animal welfare protection on a species-by-species basis, we should be willing to protect entire Linnaean orders on the basis of evidence from a single species.
Brain Complexity, Sentience And Welfare, Donald M. Broom
Brain Complexity, Sentience And Welfare, Donald M. Broom
Animal Sentience
Neither sentience nor moral standing is confined to animals with large or human-like brains. Invertebrates deserve moral consideration. Definition of terms clarifies the relationship between sentience and welfare. All animals have welfare but humans give more protection to sentient animals. Humans should be less human-centred.
Invertebrate Cognition, Sentience And Biology, Georges Chapouthier
Invertebrate Cognition, Sentience And Biology, Georges Chapouthier
Animal Sentience
All animal species have adapted for survival and no species is superior overall. For cognitive capacities and sentience, invertebrates such as the octopus, although quite unlike vertebrates, can achieve similar performance levels. So can other invertebrates with small brains; hence they too, as sentient beings, deserve moral consideration from humans. How are we to identify these species? Only though a detailed analysis of their behavior. The decision, which is a moral judgment, depends on biological knowledge that still needs to be acquired.
Convergent Evolution Of Sentience?, Culum Brown Prof.
Convergent Evolution Of Sentience?, Culum Brown Prof.
Animal Sentience
Mikhalevich & Powell make a compelling case that some invertebrates may be sentient and that our moral obligations in the context of welfare should hence extend to them. Although the case is similar to that made for fishes, there is one obvious difference in that examples of invertebrate sentience probably arose independently from vertebrate sentience. We have unequivocal proof that complex cognition arose multiple times over evolutionary history. Given that cognition is our best tool for indirectly quantifying sentience, it seems highly likely that this multiple polygenesis may also have occurred for sentience. In acknowledging this, we must accept that …
Notes On The Diet And Reproduction Of The Bark Scorpion Centruroides Gracilis (Scorpiones: Buthidae) On Utila Island, Honduras, Anna M. Davison, Tom W. Brown, Cristina Arrivillaga
Notes On The Diet And Reproduction Of The Bark Scorpion Centruroides Gracilis (Scorpiones: Buthidae) On Utila Island, Honduras, Anna M. Davison, Tom W. Brown, Cristina Arrivillaga
Euscorpius
The brown bark scorpion Centruroides gracilis (Latreille, 1804) (Buthidae) is an abundant and widespread species, however, fairly little is known about its ecology and natural history. We include several observations from Utila Island, Honduras, that expand on the known literature regarding the diet and reproductive behavior of C. gracilis. We report several prey items for this opportunistic species, which include invertebrates such as spiders (including tarantulas), centipedes, katydids, and crickets; as well as a case of cannibalism between two adult females C. gracilis. We suggest that such cannibalism may be driven by high population densities and/or strong intraspecific …
Minds, Morality And Midgies, Brian Key, Deborah Brown
Minds, Morality And Midgies, Brian Key, Deborah Brown
Animal Sentience
Mikhalevich & Powell argue that the exclusion of the vast majority of arthropods from moral standing is unwarranted, particularly given the purported evidence for cognition and sentience in these organisms. The implied association between consciousness and moral standing is questionable and their assumption that rich forms of cognition and flexible behavior are dependent on phenomenal consciousness needs to be reconsidered in light of current neuroscientific evidence. We conclude by proposing a neural algorithmic approach for deciphering whether organisms are capable of subjective experience.
A New Lesser Antillean Scorpion Of The Genus Didymocentrus Kraepelin, 1905 (Scorpiones: Diplocentridae), Rolando Teruel, Karl Questel
A New Lesser Antillean Scorpion Of The Genus Didymocentrus Kraepelin, 1905 (Scorpiones: Diplocentridae), Rolando Teruel, Karl Questel
Euscorpius
A new species of the diplocentrid scorpion of the genus Didymocentrus Kraepelin, 1905 is herein described from the Lesser Antillean island of Martinique. It long remained misidentified as Didymocentrus lesueurii (Gervais, 1844), the only species of this genus inhabiting the adjacent island of Saint Lucia. The direct comparison of adults of both sexes from these two islands revealed solid morphological characters, which warrant their recognition as two different taxa. Each one is endemic from a single major island, where it is widespread even in its satellite islets. This addition raises the known composition of the genus to 12 species, 10 …
Six New Species Of Orthochirus Karsch, 1892 From Iran (Scorpiones: Buthidae), František Kovařík, Shahrokh Navidpour
Six New Species Of Orthochirus Karsch, 1892 From Iran (Scorpiones: Buthidae), František Kovařík, Shahrokh Navidpour
Euscorpius
Six new scorpion species from Iran, Orthochirus hormozganensis sp. n. (Hormozgan Province), O. kermanensis sp. n. (Kerman Province), O. kucerai sp. n. (Kerman Province), O. masihipouri sp. n. (Bushehr Province), O. semnanensis sp. n. (Semnan Province), and O. vignolii sp. n. (Yazd Province) are described, compared with other Iranian Orthochirus species, and fully illustrated with color photographs. A key and a distribution map of Orthochirus of Iran, Turkey, and Iraq (18 species) are included.
Using Primary Literature On Sars‐Cov‐2 To Promote Student Learning About Evolution, Jeremy L. Hsu
Using Primary Literature On Sars‐Cov‐2 To Promote Student Learning About Evolution, Jeremy L. Hsu
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
The ongoing COVID‐19 pandemic caused by SARS‐CoV‐2 has caused widespread deaths, illnesses, and societal disruption. I describe here how I pivoted a discussion‐based senior biology capstone course to include a multiweek module surrounding one primary literature paper on the evolution of SARS‐CoV‐2 and the subsequent scientific discourse about the paper. Using a gradual reveal of the paper following the CREATE method (consider, read, elucidate, and think of the next experiment), I challenged students to learn new evolutionary principles and critically analyze the data surrounding the evolution and transmission of SARS‐CoV‐2 presented in the paper. I also provide general advice for …
Effects Of Inter-Male Status Challenge And Psychopathic Traits On Sexual Aggression, Amy M. Hoffmann
Effects Of Inter-Male Status Challenge And Psychopathic Traits On Sexual Aggression, Amy M. Hoffmann
USF Tampa Graduate Theses and Dissertations
Sexual aggression (SA) is a serious social problem that has been linked to a variety of negative physical and mental health outcomes for survivors and produces significant monetary costs to society. In the past five decades, a wealth of research has improved our understanding of the individual and sociocultural factors that contribute to SA perpetration; however, epistemological differences in theoretical approaches to the subject (i.e., evolutionary, feminist) have resulted in gaps in the empirical literature. Informed by both feminist and evolutionary perspectives, this study attempts to examine the ways in which same-gender interpersonal interactions and individual psychopathology interact to produce …
A Macroevolutionary View On Extinction In Aves, Chiroptera, And Odonata, Peter Hasik
A Macroevolutionary View On Extinction In Aves, Chiroptera, And Odonata, Peter Hasik
Graduate Theses and Dissertations
A central goal of conservation biology is to identify and understand the factors that lead to extinction. The Earth is currently undergoing a 6th mass extinction event, in large part because of human activity. In the last century, rates of extinction have increased anywhere from 8-100 times the background rate of 2 extinctions per 10,000 species every 100 years. However, there remains a debate over whether certain species are predisposed to a higher extinction risk. In particular, it is not known if the macroevolutionary history of a lineage is a major contributor to the probability of extinction, nor is it …
Macronutrient Intake And Simulated Infection Threat Independently Affect Life History Traits Of Male Decorated Crickets, Kristin Duffield, Kylie J. Hampton, James Rapkin, John Hunt, Scott K. Sakaluk, Ben M. Sadd, Thomas M. Houslay
Macronutrient Intake And Simulated Infection Threat Independently Affect Life History Traits Of Male Decorated Crickets, Kristin Duffield, Kylie J. Hampton, James Rapkin, John Hunt, Scott K. Sakaluk, Ben M. Sadd, Thomas M. Houslay
Faculty Publications – Biological Sciences
Nutritional geometry has advanced our understanding of how macronutrients (e.g.,proteins and carbohydrates) influence the expression of life history traits and theircorresponding trade-offs. For example, recent work has revealed that reproduc-tion and immune function in male decorated crickets are optimized at very differentprotein:carbohydrate (P:C) dietary ratios. However, it is unclear how an individual'smacronutrient intake interacts with its perceived infection status to determine in-vestment in reproduction or other key life history traits. Here, we employed a fullyfactorial design in which calling effort and immune function were quantified formale crickets fed either diets previously demonstrated to maximize calling effort(P:C = 1:8) or immune …
Metabolomic Differences Between Invasive Alien Plants From Native And Invaded Habitats, Sarah A. Skubel, Xiaoyang Su, Alexander Poulev, Llewellyn C. Foxcroft, Vyacheslav Dushenkov, Ilya Raskin
Metabolomic Differences Between Invasive Alien Plants From Native And Invaded Habitats, Sarah A. Skubel, Xiaoyang Su, Alexander Poulev, Llewellyn C. Foxcroft, Vyacheslav Dushenkov, Ilya Raskin
Publications and Research
Globalization facilitated the spread of invasive alien species (IAS), undermining the stability of the world’s ecosystems. We investigated the metabolomic profiles of three IAS species: Chromolaena odorata (Asteraceae) Datura stramonium (Solanaceae), and Xanthium strumarium (Asteraceae), comparing metabolites of individual plants in their native habitats (USA), to their invasive counterparts growing in and around Kruger National Park (South Africa, ZA). Metabolomic samples were collected using RApid Metabolome Extraction and Storage (RAMES) technology, which immobilizes phytochemicals on glass fiber disks, reducing compound degradation, allowing long-term, storage and simplifying biochemical analysis. Metabolomic differences were analyzed using ultra-performance liquid chromatography-mass spectrometry (UPLC-MS) of samples …
A Late Blancan Local Fauna From Northern Idaho, Marlena Blua, Jonathon Welch, Neville Magone
A Late Blancan Local Fauna From Northern Idaho, Marlena Blua, Jonathon Welch, Neville Magone
2020 Symposium Posters
Mammal specimens from a new Pleistocene-age locality near Priest River, Idaho have been identified from at least nine different taxa including muskrat, beaver, porcupine, deer, horse, pronghorn antelope, canid, lynx and bear. A right mandible containing i1 and m1-m2 is of an Ondatra sp. of muskrat. The m1is significantly shorter, narrower and the L/W ratio smaller than that of extant and extinct O. zebethicus. Yet the m1 length and width are both larger than either O. idahoensis and O. annectens. The beaver is represented by an isolated incisor, two lower molars and one upper molar. All three molars share the …
Scorpions Of Puerto Rico And Its Satellite Islands (Scorpiones: Buthidae, Diplocentridae): An Аnnotated List, Key For Genera, And Bibliography, Luis De Armas
Euscorpius
An annotated list of the scorpions of Puerto Rico and its satellite islands (mainly Vieques, Culebra, Caja de Muertos, Magueyes, Desecheo, and Mona), a key for the seven genera present in those insular territories, a key for the three species of Microtityus, and the basic bibliography on taxonomy and natural history are provided. Of the 16 confirmed species described from these Greater Antillean islands, four are known only from a single sex and only one or two adult specimens. Seven species (six of them from the genus Tityus), are endemic to the Puerto Rico Island; Vieques has two …
The Evolution Of Bivalve Shell Matrix Proteins, Mark Ira Duhon Ii
The Evolution Of Bivalve Shell Matrix Proteins, Mark Ira Duhon Ii
LSU Doctoral Dissertations
This dissertation focuses on the molecular underpinnings surrounding the evolution of the biomineralized shells of marine bivalves. Bivalve molluscs synthesize remarkably complex shells from calcium carbonate and an organic matrix of proteins secreted from the dorsal edge of the mantle. Molecular analyses of shell matrix proteins (SMPs) have suggested high rates of gene turnover despite the conserved nature of the shell itself. Here, I used proteomic and transcriptomic data to identify the SMPs and other biomineralization proteins from seven bivalve species that diverged 3-513 Mya. Contrary to previous studies that identified only a few shared biomineralization transcripts across the Bivalvia, …
Species Dispersal Modes In Amphitropical Plant Species Of North And South America, Samera Lemma Mulatu
Species Dispersal Modes In Amphitropical Plant Species Of North And South America, Samera Lemma Mulatu
Honors College Theses
Amphitropical disjunct plants are species that occur in both North and South America but not in the intermediate equatorial region. How amphitropical species dispersed across the Americas to their current distribution remains uncertain. To explain amphitropical distributions, three hypotheses were developed to test that (1) species dispersed successively through island hopping across the tropical zone in temperate microhabitats (= stepping stones), (2) species came to their current distribution through vicariance, or (3) species dispersed by a single long distance dispersal event. Twenty-five species were studied to infer their historical distributions with species distribution models in MaxEnt. Distribution models for each …
A New Species Of Isometrus (Scorpiones: Buthidae) From Southern India, Shauri Sulakhe, Nikhil Dandekar, Shomen Mukherjee, Malay Pandey, Makarand Ketkar, Anand Padhye, Deshabhushan Bastawade
A New Species Of Isometrus (Scorpiones: Buthidae) From Southern India, Shauri Sulakhe, Nikhil Dandekar, Shomen Mukherjee, Malay Pandey, Makarand Ketkar, Anand Padhye, Deshabhushan Bastawade
Euscorpius
A new species of Isometrus (Buthidae) is described from India using integrated taxonomic approach. Isometrus kovariki sp. n. is closely related to I. thurstoni, and differs in morphological features and raw genetic divergence of more than 9%.
Anchialine Biodiversity In The Turks And Caicos Islands: New Discoveries And Current Faunal Composition, Brett C. Gonzalez, Alejandro Martínez, Jørgen Olesen, Sarit B. Truskey, Lauren Ballou, Marc Allentoft-Larsen, Joost Daniels, Paul Heinerth, Mark Parrish, Naqqi Manco, Jon Ward, Thomas M. Iliffe, Karen J. Osborn, Katrine Worsaae
Anchialine Biodiversity In The Turks And Caicos Islands: New Discoveries And Current Faunal Composition, Brett C. Gonzalez, Alejandro Martínez, Jørgen Olesen, Sarit B. Truskey, Lauren Ballou, Marc Allentoft-Larsen, Joost Daniels, Paul Heinerth, Mark Parrish, Naqqi Manco, Jon Ward, Thomas M. Iliffe, Karen J. Osborn, Katrine Worsaae
International Journal of Speleology
Lying at the southernmost point of the Lucayan Archipelago, the Turks and Caicos Islands are amongst the better studied localities for anchialine cave biodiversity. For nearly five decades, novel invertebrate fauna, comprised primarily of crustaceans, have been collected from these tidally influenced pools – but new findings are always on the horizon. Herein we present new records of crustaceans and annelids from anchialine blue holes and horizontal caves of the Turks and Caicos. These findings include two potentially new species of meiofaunal annelids and a new species of remipede collected from a shallow water cave pool. Our 2019 expedition additionally …
Statistical Inference Of Adaptation At Multiple Genomic Scales Using Supervised Classification And A Hidden Markov Model, Lauren A. Sugden
Statistical Inference Of Adaptation At Multiple Genomic Scales Using Supervised Classification And A Hidden Markov Model, Lauren A. Sugden
Biology and Medicine Through Mathematics Conference
No abstract provided.
Eco-Evolutionary Dynamics Of Microbial Communities, Lihong Zhao
Eco-Evolutionary Dynamics Of Microbial Communities, Lihong Zhao
Biology and Medicine Through Mathematics Conference
No abstract provided.
Snapshots Of Human Anatomy, Locomotion, And Behavior From Late Pleistocene Footprints At Engare Sero, Tanzania, Kevin Hatala, William E. H. Harcourt-Smith, Adam D. Gordon, Brian W. Zimmer, Brian G. Richmond, Briana L. Pobiner, David J. Green, Adam Metallo, Vince Rossi, Cynthia M. Liutkus-Pierce
Snapshots Of Human Anatomy, Locomotion, And Behavior From Late Pleistocene Footprints At Engare Sero, Tanzania, Kevin Hatala, William E. H. Harcourt-Smith, Adam D. Gordon, Brian W. Zimmer, Brian G. Richmond, Briana L. Pobiner, David J. Green, Adam Metallo, Vince Rossi, Cynthia M. Liutkus-Pierce
Publications and Research
Fossil hominin footprints preserve data on a remarkably short time scale compared to most other fossil evidence, offering snapshots of organisms in their immediate ecological and behavioral contexts. Here, we report on our excavations and analyses of more than 400 Late Pleistocene human footprints from Engare Sero, Tanzania. The site represents the largest assemblage of footprints currently known from the human fossil record in Africa. Speed estimates show that the trackways reflect both walking and running behaviors. Estimates of group composition suggest that these footprints were made by a mixed-sex and mixed-age group, but one that consisted of mostly adult …
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxiv. Leiurus (Buthidae), With Description Of Leiurus Gubanensis Sp. N., František Kovařík, Graeme Lowe
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxiv. Leiurus (Buthidae), With Description Of Leiurus Gubanensis Sp. N., František Kovařík, Graeme Lowe
Euscorpius
New data are presented on the distribution of the genus Leiurus Ehrenberg, 1828 in the Horn of Africa, Somaliland, acquired during expeditions in 2011–2019. Leiurus gubanensis sp. n. is described from the Guban area, an extremely warm and dry place. The description is fully complemented with color photographs of live and preserved specimens, as well as of their habitats. This increases the known diversity of the genus to 14 species.
The Physiology And Evolution Of Selenite Respiration In Bacteria, Michael Wells
The Physiology And Evolution Of Selenite Respiration In Bacteria, Michael Wells
Electronic Theses and Dissertations
The selenium oxyanions selenate (Se(VI)) and selenite (Se(IV)) can be utilized by some bacteria and archaea as terminal electron acceptors in anaerobic respiration. Se(VI) and Se(IV) respiration is mediated by a phylogenetically and ecologically diverse array of organisms, suggesting that selenium respiration is ubiquitous in natural environments. Several respiratory Se(VI) reductases have been characterized in bacteria, revealing that Se(VI) respiration has evolved independently several times in this domain. Se(IV) respiration, in contrast, has yet to be characterized. I have purified and characterized the first respiratory Se(IV) reductase from Bacillus selenitireducens MLS10. The Se(IV) reductase appeared to purify as a single …