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Articles 1 - 30 of 1042
Full-Text Articles in Animal Sciences
Mhc Gene Analysis And Immune Variation In Lepidodactylus Lugubris (The Mourning Gecko), Helen T. Vu
Mhc Gene Analysis And Immune Variation In Lepidodactylus Lugubris (The Mourning Gecko), Helen T. Vu
2025 Fall Honors Capstones Projects - Archive
The major histocompatibility complex (MHC) plays a central role in vertebrate immune defense by enabling pathogen recognition and initiating adaptive immune responses. While MHC diversity has been extensively studied in sexually reproducing species, comparatively little is known about its evolution in asexual lineages. The parthenogenetic gecko Lepidodactylus lugubris provides a unique opportunity to investigate how clonality and hybrid origins influence immune gene diversity. By leveraging whole-genome data, this study overcomes the limitations of previous transcriptome-based analyses and provides a more comprehensive view of MHC diversity in a clonal vertebrate. As the first step towards understanding MHC evolution in parthenogenetic lizards, …
The Impact Of Maternal Age On The Expression Of Transgenerational Plasticity In Daphnia Pulicaria, Calvin Nguyen
The Impact Of Maternal Age On The Expression Of Transgenerational Plasticity In Daphnia Pulicaria, Calvin Nguyen
2025 Spring Honors Capstone Projects - Archive
Transgenerational plasticity refers to heritable, non-genetic changes in phenotype that persist across multiple generations and can enhance offspring survivability in variable environments. In Daphnia, increasing maternal age has been associated with maladaptive plasticity. To investigate this relationship, six clones were collected from two Wisconsin lakes and acclimated to laboratory conditions through a common garden rearing process. For each clone, ten replicates were generated and evenly divided between young (clutches 2–4) and old (clutches 5–8) maternal age groups. Offspring were exposed to three dietary treatments for three experimental generations: one fed only green algae, one fed only cyanobacteria (a nutritionally …
Genetic Analysis Of Methionine Restriction-Associated Mitochondrial Unfolded Protein Response Signaling., Josh D. Dodge
Genetic Analysis Of Methionine Restriction-Associated Mitochondrial Unfolded Protein Response Signaling., Josh D. Dodge
Biology Dissertations - Archive
The lifespan of an organism is dictated by various genetic and environmental factors. One such determinant is the health of mitochondria which are organelles that mediate various critical cell functions including a significant role in generating the vast supply of cellular energy. Indeed, the gradual decline of mitochondrial function is believed to be a hallmark and possible cause of aging. Paradoxically, mild mitochondrial dysfunction early in life extends lifespan in various model organisms. Cells use diverse approaches to promote mitochondrial homeostasis, including the transcriptional reprogramming of cells by mitochondrial unfolded protein response (UPRmt) to mitigate mitochondrial stress. Consistently, UPRmt activation …
Analyzing Head Morphology Trends With Increasing Population Density In A Jamaican Lizard Species, Lillian Durand
Analyzing Head Morphology Trends With Increasing Population Density In A Jamaican Lizard Species, Lillian Durand
2024 Fall Honors Capstone Projects - Archive
Anolis lizards are model organisms for studying natural selection and evolutionary processes. One trait that is hypothesized to be advantageous for males is head size, as larger heads lead to stronger bite forces and increased likelihood in outcompeting other males for mates. To better understand how linked head size and intraspecific competition are, the head morphology of male A. lineatopus was analyzed among Jamaican populations with varying levels of population density. Population densities were determined using standardized plot surveys and mark resight models. Head dimensions and body condition for individual lizards were measured at each site. My study found that …
Phenotypic Plasticity In Pigmentation: Investigating Coloration Patterns In Anablepsoides Hartii Population Responses To Environmental Variation, Jasdeep Kaur
2024 Spring Honors Capstone Projects - Archive
In this study, we investigated the color-changing capabilities of Trinidadian killifish, Anablepsoides hartii, through exposure to varied color conditions over defined periods of time. Our experiment aims to understand adaptive responses when killifish are subjected to different color backgrounds, exploring their mechanisms to change color. By subjecting the species to different environmental color variations, we sought to discern color change patterns, which could indicate adaptive responses related to camouflage, stress, behavior clues, and physiological adjustments. Carefully controlling environmental factors, we monitored and documented the fishes’ color changes, aiming to provide insights into the interplay between fish’s developmental plasticity and its …
The Morphological Evolution Of The Inner Ear In Lacertoidea (Squamata), Cristian Hernandez
The Morphological Evolution Of The Inner Ear In Lacertoidea (Squamata), Cristian Hernandez
Biology Dissertations - Archive
The popularization of high-resolution computed tomography(HRCT) has produced a revolution in the field of comparative anatomy. This technology allows us to reach a level of morphological detail in our observations that has never been possible previously. Now we can perform digital dissections isolating structures of interest such as individual bones, soft tissue organs, and even generate 3D models of body cavities (endocasts) such as the braincase and inner ear. Encompassed with the progress of the HRCT, 3D geometric morphometrics have emerged as a common tool to address morphological questions in a statistical context that outperforms the traditional 2D geometric morphometrics. …
Erratic Residents Purple Finches Cause 'Pink Sparrow' Winter, Jessie Maye Smith
Erratic Residents Purple Finches Cause 'Pink Sparrow' Winter, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Wren Well Known For Bursts Of Song, Jessie Maye Smith
Wren Well Known For Bursts Of Song, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Observers Busied By Migrant Flights, Jessie Maye Smith
Observers Busied By Migrant Flights, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Oft-Hunted Pheasant Latecomer To America, Jessie Maye Smith
Oft-Hunted Pheasant Latecomer To America, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Brainy Crows Entitled To Boldly Superior Airs, Jessie Maye Smith
Brainy Crows Entitled To Boldly Superior Airs, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Identifying Warblers Not Easy In Autumn, Jessie Maye Smith
Identifying Warblers Not Easy In Autumn, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Norther Brings Area Influx Of Wild Fowl, Jessie Maye Smith
Norther Brings Area Influx Of Wild Fowl, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Flight Masters Visit, Prior To Mexico Trip, Jessie Maye Smith
Flight Masters Visit, Prior To Mexico Trip, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
U.S. Pact With Japan Protects 189 Species, Jessie Maye Smith
U.S. Pact With Japan Protects 189 Species, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Birds Join In Salute To Girl Scout Camp, Jessie Maye Smith
Birds Join In Salute To Girl Scout Camp, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Dakota Site To House Bald Eagle Grounds, Jessie Maye Smith
Dakota Site To House Bald Eagle Grounds, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Nature Center Stroll Good For 48 Species, Jessie Maye Smith
Nature Center Stroll Good For 48 Species, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Nature Center Group Lines Up Field Trips, Jessie Maye Smith
Nature Center Group Lines Up Field Trips, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Not All Bird Nests Fit Popular Concept, Jessie Maye Smith
Not All Bird Nests Fit Popular Concept, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Owl Disc Calls Up Quartet Of Warblers, Jessie Maye Smith
Owl Disc Calls Up Quartet Of Warblers, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Depredations Feared From Parakeet Influx, Jessie Maye Smith
Depredations Feared From Parakeet Influx, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Brazos Bend Site Birders Bonanza, Jessie Maye Smith
Brazos Bend Site Birders Bonanza, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
53 Species Make Endangered List, Jessie Maye Smith
53 Species Make Endangered List, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Loss Of Most Of Mulberry Crop This Season Severe Blow To Birds, Jessie Maye Smith
Loss Of Most Of Mulberry Crop This Season Severe Blow To Birds, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Bird Stories Woven Into Easter Narrative, Jessie Maye Smith
Bird Stories Woven Into Easter Narrative, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Bird Watcher Baffled By Cries In The Night, Jessie Maye Smith
Bird Watcher Baffled By Cries In The Night, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Plans For Steel Shot On Bird Hunts Eyed, Jessie Maye Smith
Plans For Steel Shot On Bird Hunts Eyed, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Pair Find Inca Doves On Farm Near Fw, Jessie Maye Smith
Pair Find Inca Doves On Farm Near Fw, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Gulf Trip Cures Itch To View Other Fowl, Jessie Maye Smith
Gulf Trip Cures Itch To View Other Fowl, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.