Reproductive Characteristics Of The Stripetail Darter (Etheostoma Kennicotti) Relative To Monogenean Gill Parasite Infection In Estill Fork In North Alabama, 2024 University of Alabama, Huntsville
Reproductive Characteristics Of The Stripetail Darter (Etheostoma Kennicotti) Relative To Monogenean Gill Parasite Infection In Estill Fork In North Alabama, Joy L. Garcia, Zeina Celine Sleiman, Corinne N. Preacher, Bruce Stallsmith
Southeastern Fishes Council Proceedings
What relationship exists between Aethycteron sp. gill parasite infection and the reproductive characteristics of stripetail darters, Etheostoma kennicotti? 450 E. kennicotti were collected over 11 months from Estill Fork in Jackson County, Alabama. Gonads were removed and photographed. All oocytes were counted and then classified into one of four developmental stages based on size and appearance. Gill parasites belonging to the monogenean genus Aethycteron were excised, photographed, and counted. Sexual dimorphism in length and mass was observed in E. kennicotti. The number of males found at the 25> mm SL range far outnumbered the females while almost all …
An Ecology Against The Right. Learning Uncertainty And Humility From Ecosystems, 2024 Hochschule für nachhaltige Entwicklung Eberswalde
An Ecology Against The Right. Learning Uncertainty And Humility From Ecosystems, Pierre L. Ibisch, Mona Eikel-Pohen, Elias Iceman, Jake Snelling
Languages, Literatures, and Linguistics - All Scholarship
This article is a translation from the German to English. The title of the original is:
Ibisch, P.L. (2020): Eine Ökologie gegen rechts. Von Ökosystemen Unsicherheit und Demut lernen. In: Leitschuh, H., A. Brunnengräber, P.L. Ibisch, R. Loske, M. Müller, J. Sommer & E.-U. v. Weizsäcker (eds. J. Sommer, P.L. Ibisch, A. Brunnengräber): Ökologie und Heimat. Jahrbuch Ökologie 2021. Hirzel-Verlag, Stuttgart, 191-205.
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxx. Parabuthus (Buthidae) (Part Iii), With Description Of Three New Species From Somaliland And Occurrence Of Parabuthus Eritreaensis Kovařík, 2003, 2024 Marshall University
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxx. Parabuthus (Buthidae) (Part Iii), With Description Of Three New Species From Somaliland And Occurrence Of Parabuthus Eritreaensis Kovařík, 2003, František Kovařík, Graeme Lowe, Hassan Sh A. Elmi, František Šťáhlavský
Euscorpius
A new record of an adult female of Parabuthus eritreaensis Kovařík, 2003 in Somaliland confirms true distribution of this species, already discussed in Kovařík et al. (2016: 19–21). Three new species are described from Somaliland, P. dorisae sp. n., P. evae sp. n., and P. quincyae sp. n.. The hemispermatophore of P. dorisae sp. n. is illustrated and described. In addition to the analyses of external morphology and hemispermatophore, we have provided descriptions of the karyotypes of P. dorisae sp. n. and P. quincyae sp. n. Despite the presence of multivalents (CVIII and CXIV), both species exhibit karyotypes with 2n=16 …
Teaching Evolutionary Principles With Ai Image Generators, 2024 Washington University in St. Louis
Teaching Evolutionary Principles With Ai Image Generators, Jacqueline Garnett
Generative AI Teaching Activities
The purpose of this assignment is for students to practice constructing phylogenies using the principle of parsimony. In this activity, students will use an AI Image Generator to create a grid of images of the same organism and identify a series of traits that vary to build a possible phylogenetic tree.
The Wild Tomato Clade Offers Insights Into Fleshy Fruit Trait Evolution At The Phenotypic And Molecular Levels, 2024 University of Massachusetts Amherst
The Wild Tomato Clade Offers Insights Into Fleshy Fruit Trait Evolution At The Phenotypic And Molecular Levels, Jacob R. Barnett
Doctoral Dissertations
Biologists have long been fascinated by the diversity of fleshy fruits, yet questions remain as to how this variety has evolved. According to the dispersal syndrome hypothesis, flowering plants improved their reproductive success by producing fleshy fruits with appealing combinations of traits that attract animal dispersers. However, animal preferences may not be the only selective pressure driving fruit trait diversity—conflicting forces include damage-inflicting seed predators and pathogens, abiotic habitat conditions, or constraints stemming from non-adaptive mechanical, developmental, or phylogenetic limitations. Few studies have examined the early stages of fleshy fruit evolution across an entire clade of recently diverged plant species. …
Species Delimitation Of Slimy Salamanders, Plethodon Kisatchie And Plethodon Mississippi, Across The Lower Mississippi River, 2024 Louisiana Tech University
Species Delimitation Of Slimy Salamanders, Plethodon Kisatchie And Plethodon Mississippi, Across The Lower Mississippi River, Brock Hunter Stevenson
Master's Theses
Species are fundamental units of biodiversity yet delimiting species can be challenging. Slimy Salamanders of the Plethodon glutinosus species complex are a classic example of cryptic species for which species boundaries and relationships have proved difficult to determine. Once thought to be a single species ranging across the eastern United States, protein analysis revealed high genetic divergences among geographically distinct groups of populations, leading to 16 species being recognized within the group. Two of these species, the Louisiana Slimy Salamander (Plethodon kisatchie) and the Mississippi Slimy Salamander (Plethodon mississippi), are closely related but occur on opposite sides of the Mississippi …
In Memoriam Richard F. Ayrey (1948 – 2024), 2024 Marshall University
In Memoriam Richard F. Ayrey (1948 – 2024), Melinda Deboer-Ayrey, Brandon T. Myers, Robert W. Bryson, Jr., Michael M. Webber, Matthew R. Graham, Graeme Lowe, Victor Fet, František Kovařík
Euscorpius
This is a memorial issue honoring Richard F. Ayrey (1948 – 2024), a US scorpiologist. A full list of his 26 works is appended, as well as a list of scorpion taxa described by Richard (two genera and 19 species of Vaejovidae), and a map of their type localities in the USA and Mexico.
Revision Of The Genus Olivierus In Xinjiang, China, With Comments On Mesobuthus Thersites (Scorpiones: Buthidae), 2024 Marshall University
Revision Of The Genus Olivierus In Xinjiang, China, With Comments On Mesobuthus Thersites (Scorpiones: Buthidae), Victoria Tang, Zhenbang Liu, Matthew R. Graham, Victor Fet, František Kovařík, František Šťáhlavský
Euscorpius
The genus Olivierus Farzanpay, 1987 in Xinjiang Uygur Autonomous Region, China, is revised based on recently collected topotypes and other populations from 12 localities. Brief differential diagnoses are provided, with colored illustrations and photos in vivo habitus, emphasizing the key characters. Chinese appellations, conservation status, and documentation of behavior and post-envenomation symptoms are also included. Only two species are now recognized for this genus in Xinjiang: O. longichelus (Sun & Zhu, 2010) and O. przewalskii (Birula, 1897), based on both morphological and molecular evidence. The two species exhibit extensive distribution in Xinjiang (China) while also occurring in adjacent countries. Three …
Toward Improved Global Food Security: Uncovering How Tomatoes Fight Root-Knot Nematodes, 2024 Purdue University
Toward Improved Global Food Security: Uncovering How Tomatoes Fight Root-Knot Nematodes, Chingyan H. Huang
The Journal of Purdue Undergraduate Research
No abstract provided.
Exploring The Evolution Of Callose Synthase In Green Plants, 2024 Purdue University
Exploring The Evolution Of Callose Synthase In Green Plants, Giovanna Durante
The Journal of Purdue Undergraduate Research
No abstract provided.
A Survey Of Proximal Sensilla Associated With Denticle Subrows On Scorpion Pedipalp Fingers (Arachnida: Scorpiones), With Observations On Scorpion Fluorescence, 2024 Marshall University
A Survey Of Proximal Sensilla Associated With Denticle Subrows On Scorpion Pedipalp Fingers (Arachnida: Scorpiones), With Observations On Scorpion Fluorescence, Graeme Lowe, Victor Fet
Euscorpius
Sensilla on the dentate margins of scorpion pedipalp fingers, associated with denticle subrows or terminal denticles, were surveyed by white light, UV fluorescence and scanning electron microscopy. A total of 163 species belonging to 103 genera from 19 families were examined, representing all major phylogenetic lineages in the order. In the majority of species (141/152) with dentition organized into linear subrows of median denticles, a small socketed sensillum with a short shaft was observed at the proximal terminus of each subrow, termed a ‘subrow proximal sensilla’ (SPS). With few exceptions, SPS were non-fluorescent (‘Type N’) in buthids, and fluorescent (‘Type …
Alfred Russel Wallace Notes 29. Extraterrestrial Entertainment: Are We Being Monitored By Alien Beings?, 2024 Western Kentucky University
Alfred Russel Wallace Notes 29. Extraterrestrial Entertainment: Are We Being Monitored By Alien Beings?, Charles H. Smith
Faculty/Staff Personal Papers
Alfred Russel Wallace (1823−1913) was an early advocate for the rational assessment of likelihood of extraterrestrial life. Current efforts to evaluate the situation have ranged from the heavily self-indulgent to the more objective, and it is still often difficult to decide just how much of the information we are receiving on the subject is dependable. An attempt is made here to cut through the haze and reduce the matter to elementals.
Lake Water Chemistry And Local Adaptation Shape Nacl Toxicity In Daphnia Ambigua, 2024 Bowdoin College
Lake Water Chemistry And Local Adaptation Shape Nacl Toxicity In Daphnia Ambigua, Mary Alta Rogalski, Elizabeth S. Baker, Clara M. Benadon
Biology Faculty Publications
Increasing application of road deicing agents (e.g., NaCl) has caused widespread salinization of freshwater environments. Chronic exposure to toxic NaCl levels can impact freshwater biota at genome to ecosystem scales, yet the degree of harm caused by road salt pollution is likely to vary among habitats and populations. The background ion chemistry of freshwater environments may strongly impact NaCl toxicity, with greater harm occurring in ion-poor, soft water conditions. In addition, populations exposed to salinization may evolve increased NaCl tolerance. Notably, if organisms are adapted to their natal lake water chemistry, toxicity responses may also vary among populations in a …
Description Of Sivalhippus (Equidae: Perissodactyla) From The Late Miocene Siwalik Sub-Group Of Pakistan, 2023 Zoological Science Division, Pakistan Museum of Natural History, Islamabad, Pakistan (44000)
Description Of Sivalhippus (Equidae: Perissodactyla) From The Late Miocene Siwalik Sub-Group Of Pakistan, Muhammad Tahir Waseem, Ayesha Iqbal, Sania Zubaid, Abdul Majid Khan, Muhammad Ammar
Journal of Bioresource Management
New fossil mandible as well as isolated upper and lower dentitions of the late Miocene Hipparionine species, have been discovered from a locality of Chakwal, Punjab, Pakistan. By using morphometric and morphologic analysis, we have deduced that these specimens belong to Sivalhippus theobaldi. The body size of this species was intermediate between Sivalhippus perimensis and Hipparion antilopinum while its hypsodonty indicates that this species was a grazer to a larger extent which existed in mosaic of woodland and grassland in the Latest Miocene. However, the comparison with the recent horse (Equus caballus) mandible indicates some differences in …
Adaptation Reshapes The Distribution Of Fitness Effects, 2023 Western University
Adaptation Reshapes The Distribution Of Fitness Effects, Diego Tenoch Morales Lopez
Electronic Thesis and Dissertation Repository
The process of adaptation has been of interest since the XIX century, when Darwin first proposed the idea of natural selection. Since then, there has been a myriad of theoretical and empirical works that have expanded the field. From the many evolutionary insights these works have produced, a foundational idea is that spontaneous mutations in the genome of organisms can produce changes to their reproductive success that might confer an advantage for the mutant organisms with respect to their peers. Therefore, mutations drive adaptive evolution by virtue of their heritable effects on fitness. Empirical measures of the distribution of these …
On Some Teratological Scorpions In The Natural History Museum, London And Checklist Of The Scorpiological Literature On Morphological Anomalies (Arachnida: Scorpiones), 2023 Marshall University
On Some Teratological Scorpions In The Natural History Museum, London And Checklist Of The Scorpiological Literature On Morphological Anomalies (Arachnida: Scorpiones), Danniella Sherwood, Luis F. De Armas
Euscorpius
Whilst undertaking curation in the collections of the Natural History Museum, London, the senior author came across a jar of scorpions marked ‘scorpions with curled feet’. Further investigation showed this jar was full of scorpions with teratological anatomy. We hereby document and illustrate all of the specimens and discuss their respective anomalies. Furthermore, a comprehensive checklist of the literature on anomalies in scorpions, including giving the life stage and sex where known, is compiled for the benefit of future workers.
Activity Patterns Of Whiptail Lizards (Aspidoscelis) Found In The Northern Chihuahuan Desert, 2023 University of Texas at El Paso
Activity Patterns Of Whiptail Lizards (Aspidoscelis) Found In The Northern Chihuahuan Desert, Guillermo Alvarez
Open Access Theses & Dissertations
Traditional lizard pitfall traps were modified to allow organisms to escape, while collecting valuable ecological data. Modified camera traps were capable of detecting the same species as traditional traps in a semi-arid environment, without posing the associated mortality risks. Pitfall-camera traps were used to sample the activity of the Side-blotched Lizard (Uta stansburiana) and the Southwestern Fence Lizard (Sceloporus cowlesi) in an urban wetland during four continuous years. Evaluations on activity pattern and the activity overlap between the two species revealed extensive overlap, with minor but significant seasonal shifts mediating coexistence. Traps were also effective at detecting other reptiles, invertebrates, …
Lizard Communities In A Shifting Landscape: The Current State Of Insectivorous Lizard Communities In The Jornada Basin Between Grassland, Mesquite Dune, And Creosote Bush Habitats In A Semi-Arid Landscape Undergoing Shrubification, 2023 University of Texas at El Paso
Lizard Communities In A Shifting Landscape: The Current State Of Insectivorous Lizard Communities In The Jornada Basin Between Grassland, Mesquite Dune, And Creosote Bush Habitats In A Semi-Arid Landscape Undergoing Shrubification, Julie Marie Schlichte
Open Access Theses & Dissertations
Lizard communities in arid lands can act as model systems of how diversity and abundance are impacted in the face of ongoing climate variability and change, as they are sensitive to shifts in precipitation, temperature, and changing vegetation structure. The main research question we hope to answer is how the community composition of lizards varies between dominant vegetation types (Mesquite dunes, grasslands, and Creosote Bush flats). Nine sites (3 of each dominant vegetation type) with 16 pitfall traps each (n = 144) were surveyed from June 2016 -- June 2017. 12 lizard species were captured, consisting of 923 total captures …
Evolution Of Forest Bitis (Macrocerastes) In Africa: Phylogeography, Population Genetics, And Potential As A Model For Batesian Mimicry, 2023 University of Texas at El Paso
Evolution Of Forest Bitis (Macrocerastes) In Africa: Phylogeography, Population Genetics, And Potential As A Model For Batesian Mimicry, Eugene Richard Vaughan
Open Access Theses & Dissertations
The major biogeographical patterns characterizing the diversification of widely distributed species in the African rainforest remain poorly understood because of the low number of well-sampled studies that are focused on this region. I examine the phylogeography and population genetics of two broadly sympatric sister lineages of large African forest vipers (genus Bitis, subgenus Macrocerastes), the rhinoceros viper (B. nasicornis) and the Gaboon vipers (B. gabonica and B. rhinoceros). Despite their close relationship, these two lineages have notably different patterns of divergence in time and space. A time-calibrated phylogeny with sequence data from five genes, and population structure and PCA analyses …
Breaking Virulent: The Coincidental Evolution Of Virulence Factors In Bacteria., 2023 University of Louisville
Breaking Virulent: The Coincidental Evolution Of Virulence Factors In Bacteria., Rhiannon Emmanuelle Cecil
Electronic Theses and Dissertations
Understanding how innocuous organisms can evolve to be pathogenic to humans is of increasing global concern. Further, understanding how existing pathogens may evolved to be more virulent is also vital to our ability to provide healthcare to people afflicted with diseases that promote chronic bacterial infections, such as cystic fibrosis. With the rise of antibiotic resistance in both bacteria and fungi it is paramount that new therapeutics are identified. Understanding what mutations occur that result in increased virulence in microbes can potentially provide new targets for antimicrobial drugs to combat antibiotic resistance. The Coincidental Evolution Hypothesis is a fundamental hypothesis …