Biodiversity Commons^™

Fisheries Occasional Publication No. 150 - Response To 2024 External Review Of Integrated Stock Assessments For Key Wa Demersal Indicator Stocks, Rubie Evans-Powell, S. A. Hesp, Ainslie Denham, Emily A. Fisher, Rachel Marks, Fabian I. Trinnie, Brett Crisafulli

Fisheries Occasional Publications

In Western Australia (WA), stock assessments for key demersal species, including snapper and red emperor, have traditionally used bespoke integrated models developed in-house by the Department of Primary Industries and Regional Development (DPIRD). In line with other Australian jurisdictions, DPIRD is transitioning to Stock Synthesis (SS) as its primary platform for integrated stock assessments of WA finfish. To support this transition, DPIRD commissioned an independent expert review of recent integrated models applied to three demersal stocks. This publication responds to recommendations from Professor André Punt (University of Washington and CSIRO) in his 2024 review, which examined assessments for Pilbara red …

Evaluation Of The Posterior Segment Of The Dromedary Camel’S Eye Using Spectral-Domain Optical Coherence Tomography (Sd-Oct), Amine Berghiche, Djallal Eddine Rahmoun, Nassiba Reghaissia, Allaoua Chaouki Bentazir, Mohamed Kamal Merai Abdel Maksoud

The Thai Journal of Veterinary Medicine

The dromedary camel possesses unique ocular adaptations enabling survival in harsh desert environments. This study aimed to characterize the posterior segment of the dromedary camel’s eye using spectral-domain optical coherence tomography (SD-OCT) and fundus photography. Fourteen healthy adult camels were sedated and imaged. High-resolution OCT images enabled clear visualization and measurement of the retina, choroid, and sclera. The retina exhibited well-defined layers, including the retinal pigment epithelium, photoreceptor layer, plexiform layers, and nerve fiber layer. Mean thicknesses of the retina, choroid, and sclera were 267 ± 2.54 μm, 299 ± 3.15 μm, and 155 ± 2.74 μm in the right …

A Revision Of The Psammophilic Genus Liobuthus Birula, 1898 (Scorpiones: Buthidae), With A Description Of Four New Species From Central Asia, Victor Fet, František Kovařík, Graeme Lowe, Matthew R. Graham

Euscorpius

The rare Central Asian psammophilic scorpion genus, Liobuthus Birula, 1898 (Scorpiones: Buthidae), is revised. Five species are delineated according to results from three species delimitation approaches using mitochondrial DNA. Results are supported by diagnostic morphology, including an assessment of the distinctive neobothriotaxy. The type species, L. kessleri Birula, 1898, is confirmed for Iran (northeast), Turkmenistan and Uzbekistan (south). Four new species are described: L. atamuradovi sp. n. (Turkmenistan),  L. danovi sp. n. (Kazakhstan, northern Turkmenistan, Uzbekistan), L. shukurovi sp. n. (southwestern Tajikistan), and L. vachoni sp. n. (southern Kazakhstan), The unique additive neobothriotaxy (on both pedipalp femur and patella) …

Monitoring Butterflies In Big Spring Hollow, Utah, Using Transect Walks: Species Richness, Indices Of Abundance, Species Diversity, And Flight Periods, Alan R. Myrup

Monographs of the Western North American Naturalist

Transect walks were used to collect data to determine species richness, indices of abundance, species diversity, and flight periods of butterfly species in Big Spring Hollow in the South Fork of Provo Canyon, Utah Co., Utah. Advantages and cautions are discussed for the use of this sampling method. A total of 26,493 butterflies were recorded from 232 transect walks during the 10 years of this study (2001–2005 and 2019–2023), with a mean annual total number of 2649.3 butterflies. A total of 86 butterfly species were identified along the Big Spring Hollow transect belonging to 5 families: 18 Hesperiidae, 19 Lycaenidae, …

Computational And Functional Characterization Of Terebrid Venom Peptides, Favour T. Achimba

Dissertations, Theses, and Capstone Projects

Venom peptides represent a natural repertoire of bioactive compounds that are potent modulators of ion channels. Teretoxins, venom peptides from terebrid snails, remain underexplored despite their structural and functional diversity. This thesis is the first to comprehensively explore the structure and function of teretoxins using a comparative computational sequence and structure model followed by experimental assays. The majority of the functional focus has been on identifying the ion channel molecular targets of uncharacterized teretoxins. Teretoxins, like other venom peptides, are hypothesized to manipulate the cellular function of a diversity of ion channels. Dysregulation of ion channels leads to several …

Vultures, Bryan M. Kluever, Lee A. Humberg, Scott C. Barras

Wildlife Damage Management Technical Series

Fact sheet about vultures including information about human--wildlife conflicts, the vulture roost, affects on livestock, structures, human health and safety, identification of damage, management methods, legal considerations, and economics. Also included is an overview of the species.

Fighting The Black Snake: The Dapl And The Case For Indigenous Environmental Stewardship, Kenny Moll

Student Theses 2015-Present

This thesis analyzes the current scope of environmental injustice on Native lands in the U.S. Specifically it examines The Dakota Access Pipeline (DAPL) and its impacts on the Standing Rock Sioux Tribe of North Dakota. Western colonialism and capitalism have dominated North American ecosystems since their forcible introduction hundreds of years ago, causing the commodification of natural resources and leading to injustices such as that of the “Black Snake.” However, the story of The Standing Rock Sioux Tribe’s resistance will be analyzed through the framework of Indigenous philosophy and environmental justice. Chapter 1 analyzes the implementation of the DAPL and …

A Simple And Affordable Protocol To Assess Censer Seed Dispersal: First Confirmation Of The Mechanism In The Genus Solanum, Abigail J. Motter, Christopher T. Martine, Melody P. Sain

Faculty Journal Articles

The censer seed dispersal mechanism, whereby mature fruits are retained on plants and seeds dispersed by mechanical shaking, is among the most specialized wind-aided seed dispersal strategies employed by the flowering plants. An efficient, affordable, and easily repeatable protocol for determining whether a species uses this unusual mechanism of seed dispersal is lacking. Our focal species, Solanum tudununggae, is one of just two Solanum species (in a fleshy-fruited genus of ca. 1200 species) hypothesized to use this dispersal mechanism as a means to move seeds farther from parent plants than would gravity alone.

Kernel Density Estimate (Kde) Surfaces Of Wintering Tidal Marsh Birds Along The Mississippi Gulf Coast, Carlos Ramirez-Reyes, Kristine O. Evans, Mark S. Woodrey, Rachel V. Anderson, Jared Feura, Landon R. Jones, Raymond B. Iglay

Research Data

This dataset accompanies the article Spatial patterns of habitat use of wintering tidal marsh birds along the Mississippi Gulf Coast and includes kernel density estimate (KDE) raster layers describing spatial patterns of bird abundance and community richness derived from winter bird surveys. The study examined landscape features associated with the occurrence and spatial distribution of eight tidal marsh bird species during the non-breeding season along the Mississippi Gulf Coast.

Using field observations collected along fixed transects, the analysis evaluated differences between occupied and unoccupied transects, associations between bird occurrence and landscape-level predictors at ecologically relevant spatial scales, and species co-occurrence …

Distribution Of Mussels In Two Intermittent Upland Streams Of The Arkansas Valley Ecoregion, A. A. Brady, K. B. Hecke, S. A. Drake, Z. R. Crain, K. Moles

Journal of the Arkansas Academy of Science

Freshwater mussels are facing an increasing need for conservation due to their declining populations. More data is needed on mussel distributions, especially in tributaries of large rivers to properly conserve and restore populations. Big Shoal Creek and Little Shoal Creek are two upland-tributaries of the Arkansas River (Lake Dardanelle) in which no records exist for freshwater mussel populations. We addressed this knowledge gap by sampling a total of 9 sites in Little Shoal Creek and 18 sites in Big Shoal Creek to determine the abundance and distribution of mussels in these streams. Mussels were sampled using a timed-search approach. A …

Temporal Variation Of Benthic Aquatic Macroinvertebrate Communities In Two Upland Intermittent Streams In The Boston Mountains, R. J. Mccollough, K. B. Hecke

Journal of the Arkansas Academy of Science

Benthic aquatic macroinvertebrates are some of the most highly used organisms for biomonitoring and assessing stream health. However, biomonitoring is often done in one season, potentially missing important taxa and inaccurately reflecting the community as well as stream health. In addition, while road crossing effects have also been extensively researched the last few decades, these studies are also often conducted in one season, likely misrepresenting the community structure and the overall effects of the road crossing. The highly known River Continuum Concept (RCC) is often applied to these benthic aquatic macroinvertebrate communities. This study aimed to examine aquatic macroinvertebrate communities …

Reproductive Biology Of Hybopsis Amblops, The Bigeye Chub, In The Flint River Of Alabama, Crissy L. Tarver, Bruce W. Stallsmith

Southeastern Fishes Council Proceedings

The purpose of this study was to establish a reproductive schedule and examine reproductive traits that shape fecundity of the Bigeye Chub, Hybopsis amblops Leuciscidae in the Flint River system of north Alabama. Traits associated with reproduction, growth, and maturation were assessed. Specimens were collected and examined monthly from August, 2013 until July, 2014. This Bigeye Chub population primarily spawns in April and May as indicated by gonadosomatic index (GSI), ovarian condition and clutch size. Mean GSI values began to rise in February, peaking in April and May at over 13% for females and 1.6% for males. There was a …

First Arkansas Records Of The True Bugs Lasiochilus Hirtellus (Hemiptera: Heteroptera: Lasiochilidae) And Physopleurella Mundula (Anthocoridae)., S. W. Chordas Iii, R. Tumlison

Journal of the Arkansas Academy of Science

We report 2 uncommon species of true bugs (Hemiptera: Heteroptera), Lasiochilus hirtellus (Lasiochilidae) and Physopleurella mundula (Anthocoridae), for the first time from Arkansas. This includes the first report of the family Lasiochilidae for Arkansas. Both species were captured in UV light traps set in Clark County. We discuss identification, provide digital images of the voucher specimens and include updated distribution maps (north of Mexico) for both species. With the addition of these 2 species, there are now a total of 7 anthocorid species, among the 3 bug families Lasiochilidae, Anthocoridae and Lytocoridae, known for Arkansas.

Animal Taxa Threatened By Adverse Fire Regimes In Western Australia: A Synthesis And Outlook, Tim S. Doherty, Mark G. Allen, Karlene Bain, Stephen Beatty, Allan H. Burbidge, Renee A. Catullo, Sarah Comer, Ben Corey, Saul J. Cowen, Robert A. Davis, Martin A. Dziminski, J. Anthony Friend, Bruce Greatwich, Mark S. Harvey, Hannah Killian, Michael E. Klunzinger, Damian C. Lettoof, Nicola J. Mitchell, Melinda Moir, Harry A. Moore, David L. Morgan, Ian J. Radford, Michael J. Rix, Tom Vigilante, Adrian F. Wayne, Corey Whisson, Nicole Willers, Matthew R. Williams

Natural Resources Research Articles

Adverse fire regimes threaten biodiversity, potentially leading to population declines and increased extinction risk. Understanding how varying fire regimes affect threatened species is essential for effective ecosystem management, including in Western Australia where diverse ecosystems are exposed to wildfires, Indigenous burning, and prescribed fire. We compiled and synthesised data on the threat of adverse fire regimes to threatened animal taxa in Western Australia. Using a threat classification scheme, we ranked adverse fire regimes as having either no, low, medium, high, or unknown impact on each taxon. A total of 212 taxa were reviewed, 153 (72%) of which are considered fire-threatened: …

Metacommunity Coupled Epidemiological And Biophysical Modeling Of An Emergent Coral Disease, Benjamin Holmes Farmer

LSU Doctoral Dissertations

Emerging infectious diseases pose imminent risk to the marine realm and coral reefs in particular. Since its emergence in 2014, stony coral tissue loss disease (SCTLD) has dramatically reduced living coral cover in Florida and charted a similar course in the Caribbean. SCTLD is by far the most severe coral disease in history and has driven highly susceptible species to local extinction, yet the mechanisms driving the regional epizootic are not well understood. Here, we developed reef-scale parameterizations of disease spread using model sites in the lower Florida Keys, developed extensive metacommunity habitat maps for the US Caribbean, and then …

Dna Of Leadership To Guide Our Existential Purposes Toward Kindness, Hakan Kapucu

The Journal of Values-Based Leadership

This article examines the intersection of leadership and humanity’s quest for existential purpose, highlighting the role of human values such as kindness, empathy, respect, and ethics in guiding individuals toward meaning. It examines how existential purposes—shaped by philosophical, spiritual, social, and scientific perspectives—align with values that foster personal fulfillment and collective well-being. The article highlights the potential of leaders to address existential struggles, such as the dread of insignificance or isolation, by creating purpose-driven workplaces. Two leadership styles, servant leadership and technoversal leadership, are presented as exemplary models. Servant leadership prioritizes community, fostering environments where individuals discover purpose through shared …

Hybridization And Introgression In Marine Invertebrates: Population Genomics Of Phymactis Papillosa And Asterias Sea Stars, Christopher J. Dookie

Dissertations and Theses

Hybridization and introgression are evolutionary significant processes in marine invertebrates (Sanford & Kelly,2011) yet genome-wide investigations of gene flow in these taxa remain limited relative to vertebrate systems (Marchi et al., 2021). This thesis presents genomic analyses of hybridization and introgression in two marine invertebrates occupying contrasting oceanographic settings and characterized by contrasting genomic datasets: restriction-site associated DNA sequencing (RADseq) SNP data for the eastern Pacific sea anemone Phymactis papillosa and whole genome sequencing (WGS) data for the North Atlantic sea stars Asterias rubens and Asterias forbesi. For each system, I applied coalescent-based species tree inference using CASTER (Zhang …

Relationship Between Ratio Of Hybrid Sunfish To Their Parent Species And Latitude, Maxwell Kattner

Journal of Earth and Life Science

Hybrid sunfish of the Lepomis genus make up a generally small but notable portion of the population of sunfish in Minnesota lakes. Hybrid sunfish play a significant role in freshwater ecosystems across the United States. They are both morphologically and behaviorally distinct in some ways and similar in other ways to their parent species, causing them to both fill and compete with their parent species for niches occupied by multiple Lepomis species. Despite this, the ratio of hybrid sunfish to their parent species has never been properly explored. This study observed if the ratio of hybrid sunfish to their parent …

Do California Rangeland Healthy Soil Practices Offer Co-Benefits For Grassland Birds?, Ximena O. Gil

Cal Poly Humboldt theses and projects

Rangelands are important landscapes in California that support a robust cattle industry and serve as vital grassland habitat for birds. Climate change is projected to impact rangelands, leading to economic and ecological deterioration. In California, the Healthy Soils Program (HSP) incentivizes climate-smart solutions to increase working land resiliency. While the HSP targets soil and range health for livestock, it may also benefit birds. We surveyed rangeland operators to examine whether the implementation and duration of specific range management practices, such as range seeding, prescribed grazing, and silvopasture, are associated with bird community responses, using avian point count data from Point …

Succession And Alpine Plant Habitat Of A Recently Deglaciated Foreland In The Trinity Alps, California, Sebastian Evans

Cal Poly Humboldt theses and projects

The recent extinction of the Salmon Glacier in the Trinity Alps, California, provides a rare opportunity to examine post-glacial succession in a region of high endemism experiencing climatic stress. Using a chronosequence spanning ~150 years since deglaciation, I investigated (1) vegetation successional trajectories in the foreland, (2) whether the foreland functions as a climate refugium for alpine specialists, and (3) whether facilitative interactions between the dominant vascular plant (DVP) and bryophytes occur and persist through succession. I surveyed 100 plots across 11 transects within the foreland and 40 randomized plots in adjacent ecosystems. Successional patterns and refugial potential were analyzed …

Bacterial Community Function In Pitcher Plant Leaves As An Experimental And Mathematical Model Of Functional Dynamics, Amelia Jackson

Cal Poly Humboldt theses and projects

This work looks at two different sites with differing abiotic factors in measures of altitude, temperature and precipitation. The site with higher altitude, larger temperature range, and lower precipitation, located in Plumas National Forest (Quincy, CA), had a flat BEF trend that suggests functional redundancy The site with lower altitude, more moderate temperatures, and higher precipitation located in Six Rivers National Forest (Gasquet, CA), also had a flat BEF trend. These abiotic factors could correlate to the significantly different bacterial compositions between sites. The second portion of this work is modeling the host antagonist relationship between Eyxra moths and their …

Data From: Mass Mortality Of Avian Migrants In New Mexico, Usa, That Coincided With An Extreme Weather Event, Dylan M. Osterhaus, Allison J. Salas, Patricia L. Cutler, Mara E. Weisenberger, Kerry Mower, Abigail J. Lawon, Timothy F. Wright, Jeanne M. Fair, Martha J. Desmond

Fish, Wildlife, & Conservation Ecology: Datasets

No abstract provided.

Rewwild: Reimagining Environmental And Wildlife Wellbeing Through Innovative Lawn Design, Morgan J. Sandau, Maiya G. Roelen, Katia E. Chavez, Lydia K. Niedermeyer

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Manicured, monoculture lawns often dominate private land in urban areas for aesthetic organization. Colonialist roots are embedded in the history of turfgrass lawns and white-picket fences intended to suppress Indigenous knowledge and ways of caring for the diverse land around us. Private land misuse and homogenous lawns are not limited to the United States; the modern lawn contributes to biodiversity loss on a global scale. Humans are concentrated in cities across the world, and urban areas are known to have negative implications for wildlife and habitat, human health, and sustainable resource use. Management of private land in urban settings is …

Cover Crop Effects On Soil Porewater Nutrients And Hydrothermal Properties, Md Mahadi Hasan

Theses and Dissertations

Adoption of winter cover crops in the U.S. Midwest may reduce nitrogen (N) and phosphorus (P) leaching from soils, potentially shrinking the hypoxic zone by limiting nutrient runoff into the Gulf of Mexico. To evaluate the impact of selected winter cover crops on soil porewater N and P concentration, a field study was conducted at the Illinois State University Research Farm (ISURF) and the Western Illinois University Research Farm (WIURF). The experimental design was a block experiment with four replications.  Cover crop treatments included a winter fallow, wild pennycress (WPC), golden pennycress (GPC), cereal rye (CR), annual ryegrass (AR), and …

Recent Insight And Perspective Of Marine-Inspired Biopolymers For Wound Healing Applications - A Review, Muhammad Umar Aslam Khan, Saiqa Yousaf, Abdalla Abdal-Hay, Mohd Faizal Bin Abdullah, Sahar Madani, Muhammad Shahzad Zafar, Goran M. Stojanović, Lobat Tayebi

Electrical & Computer Engineering Faculty Publications

There is an increasing necessity for advanced, sustainable, and biocompatible materials for wound healing as therapeutic and diagnostic products. Marine environments, characterized by high biodiversity, offer an underutilized source of natural resources with enormous potential for creating novel materials for dressings. This review highlights the revolutionary nature of polymeric biomaterials of marine origin, with a focus on polysaccharides, like alginate, chitosan, and carrageenan; proteins, such as collagen and gelatin. These biopolymers are outstanding in their physicochemical properties, such as biodegradability, bioactivity, and modifiable mechanical strength, which enable their use in wound-healing systems. Besides, these biomaterials may be easily chemically and …

From Theory To Ecosystems: Exploring Biodiversity And Ecosystem-Function In Pitcher Plant (Darlingtonia Californica) Microbial Communities, Gavin Sutter

Cal Poly Humboldt theses and projects

The relationship between biodiversity and ecosystem-function (BEF) has been a central focus of ecological research for the last three decades, yet the role of space in shaping BEF relationships remains relatively unknown. Research has shown that community diversity and composition can strongly influence productivity, nutrient cycling, and decomposition, but much of this work treats communities as spatially isolated, leaving open how dispersal and other spatial processes shape BEF at broader scales. To begin addressing this gap, I used microbial communities inhabiting Darlingtonia californica pitcher plant leaves to evaluate how spatial organization and successional change shape biodiversity and ecosystem-functioning. I quantified …

A Study Of Adaptive Reuse Of A Decommissioned Golf Course Through A Nature-Based Approach: Woodhaven Golf Course, Fort Wort Texas., Justin B. Watson Mr.

Landscape Architecture Masters & Design Theses

Across the nation, golf courses are shutting down due to a lack of demand. Golf course developments began in the United States in the early 1950s During that era, demand for golf courses and housing was high. As golf’s popularity grew, developers saw golf courses in developments as high value-add amenities (Grooms, 2010). During the late 1990s and early 2000s, developers across the country raced to construct as many golf course communities as they could even as the number of golfers leveled out (Downey,2011).

Decommissioned golf courses across Texas are being underutilized as potential amenities for both the local community …

Assessing Urban–Rural Differences In Largemouth Bass Abundance In Minnesota, Jonathan Gates

Journal of Earth and Life Science

Urbanization can significantly alter freshwater ecosystems and influence sport fish populations. This study examined differences in largemouth bass Micropterus nigricans catch-per-unit-effort (CPUE) between urban and rural lakes in Minnesota and evaluated temporal changes between 2000–2010 and 2011–2021. Forty lakes (20 urban, 20 rural) were selected using Minnesota Department of Natural Resources fisheries survey data. Lakes were classified using NLCD 2019 land cover data, with ≥10% developed land designated as urban. Nonparametric analyses (Wilcoxon rank-sum and signed-rank tests) were used to assess spatial and temporal differences in CPUE. Results showed that rural lakes had consistently higher median CPUE than urban lakes …

Neonicotinoid Bioaccumulation In Bluegill And Bullhead Within Lake Julia And Lake Zumwalde, Jake Stuber

Journal of Earth and Life Science

Brown Bullhead Ameiurus nebulosus, Yellow Bullhead Ameiurus natalis, and Bluegill Lepomis macrochirus are unique in their stark differences. Bullhead are scaleless bottom feeders that can tolerate high pollution and low O₂ conditions. In contrast, Bluegill are scaled, aggressive nesters and are less tolerant of high pollutants or low-oxygen conditions. Among these pollutants include a class of chemicals called neonicotinoids (hereafter referred to as neonics). Neonics are a class of insecticides primarily used within agriculture and pest management. Due to the effectiveness, application has escalated on a global scale. They have been well documented by many toxicology assessments. …

Indigenous Land Seizure & Environmental Injustice: Impacts Of Settler Colonialism, Lydia Moorman

Journal of Earth and Life Science

The fields of conservation and environmentalism prioritize ecosystem health, yet both emerged from western frameworks that displaced and criminalized Indigenous land stewardship. The idealization of “pristine wilderness” narratives served to justify the removal of Indigenous peoples from their homelands and erased millennia of sustainable land stewardship that had maintained ecological balance long before western conservation existed. These narratives not only misrepresented Indigenous relationship with land but also constructed a false dichotomy between humans and nature that positioned Indigenous presence as a threat rather than a source of ecological knowledge. Simultaneously, anthropogenic expansion; such as pipelines, mining, railroads, and other extractive …