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23 Extinct Redwork Quilt Project: Repairing Relationships With Our More-Than-Human Kin, Stitch By Stich, Heather Kerley

Textile Society of America: Symposium Proceedings

In 2021, the United States Fish and Wildlife Service proposed 23 species for delisting from the Endangered Species Act due to extinction. I would like to present my redwork quilt, Mourning Lost Kin (23 Extinct), which honors each of these species. I plan to share my process from researching and sketching each species to the embroidering of each block and the over-all construction of the quilt. But most importantly, I would love to share the stories of these species, the layers of meaning in this quilt, and the many questions it raised for me over the course of two years. …

Occupancy Of The Little Grass Frog (Pseudacris Ocularis), An Overlooked Longleaf Endemic, In A Managed Landscape, Anna M. Humphrey

Theses, Dissertations and Capstones

Amphibians are declining globally, with many declines associated with habitat loss. The longleaf pine (Pinus palustris) ecosystem historically covered most of the southeastern United States and supports a host of endemic amphibians. This ecosystem has declined by over 97% in the last two hundred years and many associated species have declined with it. The Little Grass Frog (Pseudacris ocularis) is a longleaf pine endemic anuran that has been understudied and under-surveyed; almost no information is known on the ecology of this species and no population studies have been conducted. My goals were to create an acoustic …

An Aggregation Of The Pandalid Shrimp, Heterocarpus Ensifer, On Deep Reef Habitats Of The West Florida Slope, Eastern Gulf Of Mexico, Steve W. Ross

Gulf and Caribbean Research

Heterocarpus ensifer A. Milne—Edwards (1881) (Crustacea: Pandalidae), armed nylon shrimp, is widely distributed in the western and eastern North Atlantic Ocean. In the western Atlantic this shrimp occurs from off North Carolina to Brazil and in the Gulf of Mexico (GOM), western Bahamas, and Caribbean Sea at depths of 170—885 m. Despite its widespread occurrence, ecology or biology information for this species are sparse, and in situ observations of abundance, behavior and habitat preferences are particularly lacking. During extensive submersible and ROV observations on and near deep—reefs in the north—central and eastern GOM, a remarkably large aggregation of H. ensifer …

Distribution Of Tick Species On Free-Ranging Ungulates In Northern New England, Karisa Graham

Honors Theses and Capstones

In Northern New England, ungulates are often parasitized by ticks, which is one of the leading causes for the decline in population. Ungulates are a good host for ticks, specifically deer ticks and winter ticks, and these ticks cause many tick-borne diseases in humans as well. The purpose of this study was to assess passive sampling from harvested animals as a means of tick surveillance in Vermont and New Hampshire. Ticks were collected from deer and moose and mapped throughout the two states by ArcGIS to visualize the trends in distribution. Relative abundance was greater in southeastern Vermont, with no …

Endophytic Fungi Associated With Galls And Host Plants Of Asphondylia Borrichiae (Diptera: Cecidomyiidae), Shannon Lynn Sharpe

UNF Graduate Theses and Dissertations

Asphondylia borrichiae, like other gall-forming gnats, are obligate symbionts to the endophytic fungi (EF) they deposit when laying eggs. Asphondylia spp. and EF are important biocontrol agents, yet details surrounding their diversity, life cycles, and host interactions remain poorly understood. Galls and leaf-stem tissues from two host plants were surveyed to identify and compare EF diversity between the host tissues and species of A. borrichiae. Identification of 114 isolates was carried out by sequencing the internal transcribed spacer (ITS 1/4 primers). Pairwise alignments in multiple genetic databases were bolstered by phylogenetic analyses using maximum parsimony and maximum likelihood …

Exploring The Welfare Of A Captive Population Of Cownose Rays (Rhinoptera Bonasus) Through Social And Resource Interactions, Kendal N. Rogers

UNF Graduate Theses and Dissertations

Zoos and aquariums utilize research-based management to ensure animals remain in a positive welfare standing. While vital, this research is taxa-biased towards mammals, with few studies observing other species that are frequently observed in captivity, such as elasmobranchs, or sharks and rays. Often maintained in exhibits that allow direct guest interaction, or touch pools, elasmobranchs have been shown to respond to these exposures through behavior changes in activity and social interactions. While this may indicate a potential for compromised welfare, the literature is conflicting and sparse, leaving uncertainty in the overall welfare condition of animals maintained in this popular exhibit …

Evaluating The Use Of Baited Remote Underwater Video (Bruv) In Assessing Shark And Fish Populations In A Low Visibility Estuarine System, The Tolomato River, Fl, Usa, Sarah Worthington

UNF Graduate Theses and Dissertations

Recently, there has been increasing use of baited remote underwater video (BRUV) surveys for assessing shark and fish populations in marine ecosystems. This approach can be useful because it may provide a non-destructive, non-extractive, and cost-effective alternative to traditional fishing-based methods. However, to date, most studies using BRUVs have focused on their use in high-visibility ecosystems, such as tropical reefs. Furthermore, few studies have compared results from BRUV surveys with those obtained using traditional methods to evaluate the efficacy of this approach. Therefore, the goal of this study was to evaluate the effectiveness of using BRUV surveys to assess shark …

A “War” Over Lobster And Whales: The Issue-Attention Cycle, Media Discourse, And Political Ecology Of Right Whale Science And Conservation In Six Us Newspapers, Marcus Reamer, Catherine Macdonald, Julia Wester, Russell Fielding, Meryl Shriver-Rice

Honors College Faculty Publications

News organizations and journalists are important and influential actors in environmental politics. Their reporting on social and environmental issues often follows issue-attention cycles (IACs) that emphasize drama and problematization to maintain public interest. This study examined nearly 13 years of news coverage to understand the media discourse about the Critically Endangered North Atlantic right whale (NARW) and its conservation. Content analysis and critical discourse analysis were used to analyze 356 texts published in six large US newspapers between January 1, 2010 and March 15, 2023. NARW conservation and management received increased public attention and an IAC began in 2017 after …

Relationships Between Cliff Swallows (Petrochelidon Pyrrhonota) And Feather Coloration, Morphological Characteristics, And Colony Size, Sonja M. Brandt

Master's Theses or Doctor of Nursing Practice

Environmental stressors such as drought and roadways can strongly affect breeding birds. Cliff Swallows (Petrochelidon Pyrrhonota) are aerial insectivores that experience mortality from car collisions, because they often nest and hunt under bridges and road culverts. Individual traits that may convey social information, such as body condition, or feather coloration, might be associated with better coping around cars and other environmental stressors. Few studies have investigated relationships between coloration and other environmental stressors, such as water loss due to drought near the colony and foraging areas. Colony size can be heavily affected by various environmental factors such as water level …

Taxonomic Status, Distribution And Conservation Of The Critically Endangered Plant Psychotria Angustata (Rubiaceae), Walter Simbaña, Alan Tye, Timothy J. Motley, Uno Eliasson

Biological Sciences Faculty Publications

Simbaña, W.; A. Tye, T. J. Motley & U. Eliasson. 2024. Taxonomic status, distribution and conservation of the Critically Endangered plant Psychotria angustata (Rubiaceae), endemic to Floreana Island, Galapagos. Darwiniana, nueva serie 12(2): 204-219.

Two species of Psychotria have been recognised in the Galapagos Islands, both understorey shrubs endemic to the archipelago: P. rufipes Hook.f. occurs on seven islands, including Floreana, while P. angustata Andersson is endemic to Floreana. Since their mid-19th century discovery, the taxonomic and ecological status of these species has been uncertain. To clarify this, we examined historical specimens and numerous recent collections of both species, and …

Arousal Patterns, Fungal Loads, And Wing Damage In A Surviving Population Of Little Brown Bats (Myotis Lucifugus), Brooke A. Daly

Master's Theses and Doctoral Dissertations

Little brown bats (Myotis lucifugus) at Tippy Dam in Michigan have shown resilience to white-nose syndrome (WNS), which is caused by the fungus Pseudogymnoascus destructans. This study evaluated the impact of environment (temperature and moisture), pathogen virulence, and host susceptibility on survival. Host response was assessed using temperature-sensitive radio transmitters (n = 37) and ultraviolet photography (n = 57), while fungal load (n = 56) was evaluated through quantitative polymerase chain reaction (qPCR). High autumn temperatures (>10°C) favored growth of the fungus, while mid-hibernation temperature (3.2°C) was unfavorable. The mean torpor bout length (TBL) …

Urban Nature Indexes Tool Offers Comprehensive And Flexible Approach To Monitoring Urban Ecological Performance, Jennifer Rae Pierce, Laura Costadone, Lelani Mannetti, Joeri Morpurgo, Charlyn Elaine Green, Michael D. Halder, Pablo Arturo Lopez Guijosa, Abner L. Bogan, Russell Galt, Jonathan Hughes

ODU Articles

We present the Urban Nature Indexes (UNI), a comprehensive tool that measures urban ecological performance under one standard framework linked to global commitments. The UNI was developed by interdisciplinary experts and evaluated by practitioners from diverse cities to capture each city’s ecological footprint from local to global scale. The UNI comprises six themes (consumption drivers, human pressures, habitat status, species status, nature’s contributions to people, and governance responses) that encompass measurable impacts on climate change, biodiversity loss, ecosystem services, pollution, consumption, water management, and equity within one comprehensive system. Cities then adapt the UNI to their context and capacity by …

Dynamic Patterns Of Resource Selection In Northern Bobwhite Across The Annual Cycle In A Region With Poor Edaphic Conditions, Autumn S. Randall

Theses and Dissertations--Forestry and Natural Resources

Developing successful management strategies requires an understanding of how an organism's resource needs change over the course of its life cycle. For almost a century, northern bobwhite (Colinus virginianus) populations have been declining range-wide, mostly as a result of habitat loss and degradation. Resource selection studies conducted at coarse-temporal resolutions and in areas with fertile soils form the majority of current management recommendations for bobwhites. In this thesis, we quantified resource selection patterns for 1,302 bobwhites in a region with poor soil conditions with respect to several common management practices (fire, fallow fields, supplemental feeding, and brush management …

Sensitivity To Artificial Light And Sound In Bats Using Urban Landscapes, Aleana R. Savage

Graduate Theses/Dissertations

Anthropogenic activity has prompted range shifts, extirpations, and behavioral change of native wildlife. Although humans have long altered the landscape, recent (post-1950s) increases in land use intensification has significantly impacted wildlife habitat and biodiversity. As anthropogenic developments and disturbances compromise habitat, some species have begun to exploit urban areas. While there are some commonalities among synurbic species, such as generalist diets and high fecundity, not all urban wildlife share these characteristics. As urban areas expand, it will be essential to distinguish what drives unique species to select for urban habitat. The gray bat, Myotis grisescens, is an endangered species …

Divergent Response To Anthropogenic Change Within The Songbird Taxon: Insights From The Range Expansion Of The Northern Cardinal And Mitigation Mechanisms For Migratory Bird-Building Collisions, Jenna Brewer

Dissertations, Master's Theses and Master's Reports

Anthropogenic activities have impacted ecosystems across the globe. However, wildlife species have exhibited heterogenous responses to these novel changes, with some species experiencing population growth, and others succumbing to population decline. I studied examples of both within the songbird taxon, focusing on drivers of range expansion in the Northern Cardinal and acoustic mitigation mechanisms for migratory bird-building collisions, a source of decline for many songbird species. I found that the Northern Cardinal’s range was primarily a function of climatic stress, which was supported by the modulation of the molt process across latitudes. Specifically, Northern Cardinals exhibited faster feather growth rates …

A Multimolecular Perspective On The Success Of Wolf Recovery And Relocation, Samuel D. Hervey

Dissertations, Master's Theses and Master's Reports

With global biodiversity in decline and many species isolated in fragmented habitats, conservation efforts increasingly rely on natural recolonization and translocation to restore ecosystems. These strategies face challenges such as genetic erosion and habitat limitations, highlighting the need for effective monitoring practices. This research assesses the success of wolf recovery initiatives by examining long-term genetic and genomic health using both traditional and advanced molecular methods. First, we investigated the genetic health of 19 gray wolves (Canis lupus) relocated to Isle Royale National Park to restore ecosystem balance. Initial genetic assessments with microsatellites found that these wolves had genetic diversity metrics …

Social Interactions And Spatial Structure Drive Community Assembly Of Bacterial Biofilm, Matthew C. Bond

Dartmouth College Ph.D Dissertations

Despite the critical nature which microbial communities play in the natural world and human civilization, the breadth of understanding remains shallow. Challenged by scale, high variability between environments, and extensive diversity, microbial ecologists strive to understand connections between a community’s structure and function, as well as the ecological and evolutionary mechanisms underlying observed natural patterning of communities. Biofilms are the predominate mode of growth for microbial communities—characterized by cellular attachment to a surface via a self-produced matrix and heterogeneous structure, often resulting in a primary growth front along the biofilm surface due to differential access to bulk nutrients (cite). This …

Stable Isotope Analysis Of Manatee Vibrissae To Investigate Individual Patterns Of Resource Use In The Northern Gulf Of Mexico, Levette Tucker, Mackenzie L. Russell, Elizabeth E. Hieb, Ruth H. Carmichael, Carl S. Cloyed

Gulf and Caribbean Research

No abstract provided.

Stable Isotope Analysis Of Antipatharian Diets From The Northwestern Gulf Of Mexico, Keir J. Macartney, Victoria Salinas, Zachary Rivera, David Hicks

Gulf and Caribbean Research

Antipatharians, or black corals, form a key component of the benthic fauna found throughout the Gulf of Mexico (GOM). In the northwestern GOM, they are a common member of the communities found on the natural relic coral—algal banks known as the South Texas Banks as well as on artificial reefs. They are known to provide important habitat for many ecologically and economically important species in the area but are relatively understudied. Here we present a study on their trophic ecology using stable isotope analysis of carbon and nitrogen from 2 species, Antipathes atlantica and Stichopathes luetkeni from a mesophotic artificial …

Donald Griffin: A Visionary In Science And Consciousness, Charles Foster

Animal Sentience

Carolyn Ristau’s (2024) timely biography reviews Donald Griffin’s pioneering ideas with depth and historical perspective, describing Griffin’s approach to science, his openness to interdisciplinary insights, and his bold stance on consciousness. Ristau’s work highlights Griffin’s relevance to contemporary debates on consciousness and natural selection.

Don Griffin And The Early Days Of Cognitive Ethology, Gordon M. Burghardt

Animal Sentience

Carolyn Ristau’s trilogy provides a comprehensive account of Donald Griffin’s life and work, with the third volume focusing on cognitive ethology. This commentary focuses primarily on my own interactions with Don, particularly during my sabbatical at Rockefeller University when his campaign for cognitive ethology was gaining momentum. I recount my research on reptile behavior and cognition, my collaboration with Don and others at RU, and my role in advancing his ideas while contextualizing them within 19th-century comparative psychology. I also discuss developments in cognitive ethology, including critical anthropomorphism, the challenges of integrating subjective experience into behavioral science, and Griffin’s lasting …

Other Perspectives On Animals, Their Sentience And Cognition, Joyce M. D'Silva Mrs

Animal Sentience

For those of us who work to achieve legal recognition that animals are sentient beings, and should in many cases be allotted personhood, Donald Griffin is indeed an inspiration and a true game-changer. He put paid to the narrow behaviourist interpretation of animals’ lives promoted by Skinner et al. He became a real heir to Darwin’s belief in animal emotions. He enabled campaigners for animal welfare and indeed animal rights to quote his work as a distinguished scientist to give gravitas to their calls for legal recognition and protection of animals.

An Individuals-Oriented Approach To Conservation, Kristy M. Ferraro

Animal Sentience

Individual cognitive and emotional differences in personality among animals, along with differences in their behavioral traits, are increasingly important in conservation efforts. It is not only more effective but more ethical to take both collective and individual perspectives into account in both research and practice.

Wildlife Conservation And Adaptation To Humans, Valeria Mazza Phd, Claudio Carere

Animal Sentience

For many animal species, the ability to adapt to coexistence with the human species and to the environmental changes that humans cause is a biological imperative. This adaptive capacity varies not only between species, but within species. Studying individual differences in animals’ behavioral, cognitive and physiological adaptability is important for integrating ethology and conservation. Findings about animal cognitive capacities, including learning, need to be applied in conservation—but humans need to be educated about ethology, coexistence and conservation too.

Variation In Mainland Northwest Territories Late-Winter Muskox (Ovibos Moschatus) Density Estimations And Habitat Associations Above And Below Treeline., Charlotte Rentmeister

Theses and Dissertations (Comprehensive)

The Arctic and Sub-Arctic ecosystems are seeing accelerated changes in temperature, landcover, and consequently species abundance and distributions. Reliable distributions, and associated population density estimates, are essential for effective conservation and management efforts. Growing concerns from northern communities regarding the relationship between muskox and declining caribou populations strengthens the need for updated information on muskox populations within mainland Northwest Territories (NWT). The first objective for my research was to quantify and map updated winter estimates of abundance, density, and distribution of muskoxen within three recent survey regions located in mainland NWT, using a multiple covariate distance sampling method (MCDS), paired …

Not Just Bony Fish: All Nonmammalian And Nonavian Animals Are Neglected In Both Welfare And General Research, Jennifer A. Mather Ph.D.

Animal Sentience

The lack of research on fish welfare highlighted by Oldfield & Bonano (2024) is only part of a more general problem: a relative neglect of animals other than mammals and birds. The causes are our lack of knowledge, our negative view of what we consider to be “lower” animals and our underestimation of their intelligence and sensitivity. Our estimation will increase as our knowledge increases. As a broader view spreads to the public through the media, it should gradually increase the demand to expand both research and welfare, especially beyond mammals and birds.

The Hare And The Hawk: Predator, Prey, And Coat Color Mismatch In A Polymorphic Snowshoe Hare Population, Amanda Shuler Emmel

Graduate Student Theses, Dissertations, & Professional Papers

Climate change effects on predator-prey interactions are complex and poorly understood, with few study systems that explicitly connect specific antipredator traits to particular climate drivers. Such a system can be found in seasonal coat color change, whereby 21 species globally molt from a summer brown to a winter white coat to maintain camouflage with seasonal snow. Snowshoe hares (Lepus americanus) contend with increased predation due to climate-change induced coat color mismatch under decreasing snowcover. Through a combination of field experiments in the central Cascade mountains, my thesis investigates snowshoe hare mismatch and predation risk from both a predator …

Go West: Population Genomics Reveals Unexpected Population Fluctuations And Little Gene Flow In Western Hemisphere Populations Of The Predatory Lady Beetle, Hippodamia Convergens, Arun Sethuraman, Schyler O. Nunziata, Angela Jones, John J. Obrycki, David W. Weisrock

Entomology Faculty Publications

Hippodamia convergens—the convergent lady beetle, has been used extensively in aug- mentative biological control of aphids, thrips, and whiteflies across its native range in North America, and was introduced into South America in the 1950s. Overwintering H. convergens populations from its native western range in the United States are com- mercially collected and released across its current range in the eastern USA, with little knowledge of the effectiveness of its augmentative biological control. Here we use a novel ddRADseq-based SNP/haplotype discovery approach to estimate its range- wide population diversity, differentiation, and recent evolutionary history. Our results indicate (1) significant population …

The Mechanoreceptor Piezo Is Required For Spermatogenesis In Bombyx Mori, Zhongjie Zhang, Xiaojing Liu, Bo Hu, Kai Chen, Ye Yu, Chenxin Sun, Dalin Zhu, Hua Bai, Subba Reddy Palli, Anjiang Tan

Entomology Faculty Publications

Background The animal sperm shows high diversity in morphology, components, and motility. In the lepidopteran model insect, the silkworm Bombyx mori, two types of sperm, including nucleate fertile eupyrene sperm and anucleate unfertile apyrene sperm, are generated. Apyrene sperm assists fertilization by facilitating the migration of eupyrene spermatozoa from the bursa copulatrix to the spermatheca. During spermatogenesis, eupyrene sperm bundles extrude the cytoplasm by peristaltic squeezing, while the nuclei of the apyrene sperm bundles are discarded with the same process, forming matured sperm.

Results In this study, we describe that a mechanoreceptor BmPiezo, the sole Piezo ortholog in B. mori, …

Pond Characteristics That Influence Oviposition Site Selection By Two Pond-Breeding Amphibians, Northern Red-Legged Frog (Rana Aurora) And Northwestern Salamander (Ambystoma Gracile), Jessica Jones

Cal Poly Humboldt theses and projects

Pond-breeding amphibians connect aquatic and terrestrial habitats through their biphasic life cycle, and understanding pond characteristics that support oviposition sites for multiple species is important for amphibian conservation. Two common amphibians in the Pacific Northwest, Northern red-legged frog (Rana aurora) and Northwestern salamander (Ambystoma gracile) often oviposit in the same pond; however, prior studies have focused on pond use by one species or the other, but not both together. I surveyed pond and oviposition site characteristics of 26 ponds in Humboldt County, CA, 10 of which were used only by R. aurora and 16 of which …