A Nursery Study Of The Interplay Between Soil Texture, Rooting Space, And Nurse Plants On Seedling Growth And Root Development In Woody Species Of Tamaulipan Thornscrub,
2024
The University of Texas Rio Grande Valley
A Nursery Study Of The Interplay Between Soil Texture, Rooting Space, And Nurse Plants On Seedling Growth And Root Development In Woody Species Of Tamaulipan Thornscrub, Lance I. Santos
Theses and Dissertations
Reforestation attempts in semi-arid regions are plagued with seedling mortality. Blanket greenhouse practices may not be optimal, in addition, commensalism interactions between nurse plants are considered. To better understand the effects of soil texture and nurse plant interactions on growth and drought tolerance, two experiments were developed. For soil texture, Border palo verde seedlings were grown in different-sized plant bands with three soil types. To observe the effects of nurse plants, an experiment using guayacan, was developed using Texas Ebony, as a leguminous nurse plant. Plants were also exposed to a drought experiment. The results suggest that some soil textures …
Quantifying Greenhouse Gas Exchange And Ecosystem Services In Ecosystems Managed For Nature-Based Solutions Using Eddy Covariance, Remote Sensing, And Models,
2024
Clemson University
Quantifying Greenhouse Gas Exchange And Ecosystem Services In Ecosystems Managed For Nature-Based Solutions Using Eddy Covariance, Remote Sensing, And Models, Lucas Clay
All Dissertations
As global temperatures rise due to climate change, nature-based solutions are increasingly being used to restore nature and to remove carbon from the atmosphere. Nature-based solutions draw on methodologies such as ecological forestry and improved forest management to reduce emissions and maximize resilience. These protocols are still in their infancy and additional measurements and case studies are important to optimizing these protocols. Herein this dissertation we describe multiple measurement methodologies for both greenhouse gas (GHG) emissions and for ecosystem services. In coastal wetland ecosystems, the need for GHG measurements is paramount to understanding the ability of these ecosystems to reduce …
Legacy Effects Of Plant Community Structure Are Manifested In Microbial Biofilm Development With Consequences For Ecosystem Co Emissions,
2024
The Ohio State University
Legacy Effects Of Plant Community Structure Are Manifested In Microbial Biofilm Development With Consequences For Ecosystem Co Emissions, Kevin H. Wyatt, Jillian Cieslik, Catherine M. Dieleman, Evan Kane, Allison R. Rober, Barrett Sullivan, Merritt R. Turetsky
Michigan Tech Publications
To better understand linkages between hydrology and ecosystem carbon flux in northern aquatic ecosystems, we evaluated the relationship between plant communities, biofilm development, and carbon dioxide (CO) exchange following long-term changes in hydrology in an Alaskan fen. We quantified seasonal variation in biofilm composition and CO exchange in response to lowered and raised water table position (relative to a control) during years with varying levels of background dissolved organic carbon (DOC). We then used nutrient-diffusing substrates (NDS) to evaluate cause-effect relationships between changes in plant subsidies (i.e., leachates) and biofilm composition among water table treatments. We found that background DOC …
Smokejumper Obituary: Smith, Gerald Paul “Jerry” (Missoula 1962),
2024
Eastern Washington University
Smokejumper Obituary: Smith, Gerald Paul “Jerry” (Missoula 1962), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Assessing Ectomycorrhizal Advantage On Tree Species Within Differing Soil Materials In Spring Mountains, Nevada,
2024
University of Nevada, Las Vegas
Assessing Ectomycorrhizal Advantage On Tree Species Within Differing Soil Materials In Spring Mountains, Nevada, Kirsten Soriano, Riley Jones, Daniel Thompson
Undergraduate Research Symposium Posters
Ectomycorrhizal fungi (ECM) form symbiotic relationships with their partner plant, creating root systems which allow for the exchange of nutrients among connected plants. The Spring Mountains National Recreation Area (NRA) in Southern Nevada is the study site for examining ECMs due to its diverse ecosystem with numerous inhabiting species. To assess the effects of ECMs on the tree composition, literature review was conducted to outline previous methods. Through data analysis and observations of the sample sites, it is concluded that ECMs are highly likely to have an effect on tree composition of the Spring Mountains NRA. The purpose of this …
Development Of Long-Term Studies Evaluating The Potential Of Chondrostereum Purpureum As A Mycobiocontrol On Invasive Buckthorn,
2024
Michigan Technological University
Development Of Long-Term Studies Evaluating The Potential Of Chondrostereum Purpureum As A Mycobiocontrol On Invasive Buckthorn, Abraham F. Stone
Michigan Tech Undergraduate Scholarship
Chondrostereum purpureum is a circumboreal polypore with high potential as a native fungal biocontrol for weedy, deciduous tree species in the Northern Hemisphere. This thesis describes the development of three multi-year studies designed to evaluate the effectiveness of C. purpureum as a management tool for invasive buckthorn (Rhamnus cathartica and Frangula alnus) in Upper Michigan, in a manner that tests a broader range of application methods beyond girdling or cut-stump treatments. Our experiments focused on a) developing a viable liquid inoculum to spray on buckthorn whips and b) creating a symptomatic assessment scale to quantify disease progression of C. purpureum …
Smokejumper Obituary: Harro, William Lewis “Bill” (Mccall 1968),
2024
Eastern Washington University
Smokejumper Obituary: Harro, William Lewis “Bill” (Mccall 1968), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Place, Space, And Shifting Views Of Nature,
2024
Wright State University
Place, Space, And Shifting Views Of Nature, Rachel Tracey
Runkle Woods Symposia
In her reflective presentation, Rachel Tracy explores her evolving relationship with nature and wilderness. Initially disinterested and uncomfortable in natural settings, she describes how her perspective shifted through class discussions, personal reflection, and immersive experiences in the outdoors. Concepts such as “space versus place” helped her understand the emotional and historical significance of natural environments. Through this journey, she discovered joy in simply being present in nature, ultimately gaining a deeper appreciation for the natural world and its ability to exist and thrive without human involvement.
Culture, Nature, And Reflection: The Settler’S Impact On Life Today,
2024
Wright State University
Culture, Nature, And Reflection: The Settler’S Impact On Life Today, Erin Thomas
Runkle Woods Symposia
Erin Thomas, a senior English major at Wright State University, reflects on the intersection of wilderness, identity, and cultural erasure. Drawing from her Indigenous heritage and experiences in the course Woods and Wilderness, she critiques the romanticized, Eurocentric view of nature as untouched and separate from humanity. Instead, Thomas highlights how wilderness has been shaped by settler colonialism and exclusionary narratives that often ignore Indigenous presence and histories. Her presentation calls for a more inclusive and honest understanding of wilderness—one that honors marginalized voices and acknowledges the land’s complex cultural past.
Wilderness Myth And Reality: Human Views And Uses Of Nature,
2024
Wright State University
Wilderness Myth And Reality: Human Views And Uses Of Nature, Evan Hardern
Runkle Woods Symposia
In his essay and presentation, Wright State English major Evan Harder critically examines modern conceptions of wilderness and challenges the Romantic ideal that moral purity and personal virtue are inherently tied to time spent in nature. Drawing on writers such as Wordsworth, Emerson, and Thoreau, Harder interrogates the cultural myth of wilderness as a pristine, untouched realm separate from civilization. He argues that our understanding of nature is a constructed concept—born from the development of cities and agriculture—and often overlooks the long histories of human habitation in places now designated as “natural” or “wild.” Through examples like Cuyahoga Valley National …
The Concept Of Wilderness In Western Culture And Its Sacredness,
2024
Wright State University
The Concept Of Wilderness In Western Culture And Its Sacredness, Shannon Doyal
Runkle Woods Symposia
Shannon Doyal, a Professional Writing student at Wright State, explores how wilderness has been perceived throughout American history—as both a physical space and a powerful spiritual symbol. Drawing from Indigenous perspectives, early settler narratives, Transcendentalist writings, and American literature, she traces the evolving cultural and emotional significance of wilderness. From a place of fear and survival to one of introspection and sacred connection, wilderness reflects our changing relationship with nature and ourselves. As someone whose spirituality honors the cycles of nature, Doyal argues that reclaiming wilderness as a sacred and emotional space is vital—not only for environmental preservation but also …
Endangered Bats In The Runkle Woods,
2024
Wright State University - Main Campus
Endangered Bats In The Runkle Woods, Volker Bahn
Runkle Woods Symposia
Since 2019, Dr. Volker Bahn’s lab has been monitoring bat populations in the Runkle Woods and nearby sites, using acoustic detectors to track species presence and activity over time. With bats representing about 20% of all mammal species globally, their ecological role—particularly in insect control—is vital. The presentation highlights the diversity of local bat species, with 10 of Ohio's 11 expected species documented, ranging from the abundant big brown and red bats to the federally endangered Indiana and northern long-eared bats. Dr. Bahn discusses patterns in bat activity across years, potential drivers such as precipitation, and the concerning declines in …
Water Quality Management In The Runkle Woods,
2024
Wright State University
Water Quality Management In The Runkle Woods, Krystal Demarco, Donavon Mishler-Laporte, Cassie Dunn, Parneet Dhillon, Reagan Hardyman
Runkle Woods Symposia
This project addresses the growing issue of salt pollution in Wright State Woods, with a specific focus on sodium chloride runoff from deicing agents. Elevated salt levels, stemming from university parking lots and surrounding infrastructure, have been linked to soil degradation, vegetation stress, and aquatic habitat damage. By analyzing salt flow patterns and assessing ecological impacts, including EPA-reported chloride violations, the team identified critical areas of concern such as Outfall #2. Proposed mitigation strategies include the use of salt-tolerant tree species, alternative deicers (e.g., acetate- or carbohydrate-based), physical barriers, and expanded retention ponds and filter dams.
Invertebrates As Indicators Of Water Quality In The Runkle Woods,
2024
Wright State University
Invertebrates As Indicators Of Water Quality In The Runkle Woods, Dillynn Blevins, Bhavishya Ratnavelu, Lauren Stetz, Corey Walls
Runkle Woods Symposia
This project investigates water quality and aquatic invertebrate habitat health in the Wright State Woods, aiming to assess current conditions and implement targeted conservation strategies. Using indicators such as dissolved oxygen, nutrient concentrations, and the presence of sensitive macroinvertebrates (e.g., mayflies, stoneflies, caddisflies), the team evaluates stream health. Data collection follows established protocols, including EPT indexing and seasonal surveys. Conservation recommendations include stream aeration maintenance, removal of non-native vegetation, soil inoculation, and the construction of rain gardens and green roofs to reduce runoff.
An Accessible Trail For The Runkle Woods,
2024
Wright State University
An Accessible Trail For The Runkle Woods, Sarah Bingham, Terri Dozier, Logan Huber, Nicole Owino, Nathan Shafer
Runkle Woods Symposia
This presentation outlines a student-led initiative to enhance a pre-existing trail in the Runkle Woods with educational conservation projects and signage. The project aims to increase accessibility and student engagement with Wright State’s natural areas. Three key conservation efforts are highlighted along the trail: prairie restoration to support native biodiversity and pollinators, erosion and runoff mitigation using native vegetation and riff-raff, and bat conservation through habitat preservation and installation of artificial roosts. The project emphasizes experiential learning, sustainability, and community involvement in environmental stewardship.
Management Of The Invasive Honeysuckle (Lonicera Maackii),
2024
Wright State University
Management Of The Invasive Honeysuckle (Lonicera Maackii), Mesa Grine, Daniel Hazelett, Cassie Healy, Padma Deepika Kandregula
Runkle Woods Symposia
This presentation addresses the ecological threat posed by invasive honeysuckle in the Runkle Woods on Wright State's campus. Originally from Europe and Asia, honeysuckle aggressively outcompetes native flora due to its rapid growth, shade tolerance, and allelopathic properties. The students observed widespread honeysuckle in both new and old growth forest areas, with greater density in younger regions. Ineffective control methods—such as cutting without herbicide—often worsen infestations. Drawing on a regional study, the students propose a targeted management plan involving cutting and herbicide application, stem injection for larger plants, and reintroducing native species like spicebush. Their strategy aims to reduce honeysuckle …
Old Growth In The Runkle Woods,
2024
Wright State University
Old Growth In The Runkle Woods, Madeline Greene, Lindsay Smith, Matt Tyren, Leif Walters
Runkle Woods Symposia
In this conservation proposal, Wright State students focus on protecting the old growth areas of Runkle Woods—a rare and ecologically significant habitat in the Eastern United States, where only about 1% of such forests remain. Home to trees over 200 years old and critical species like endangered bats and white oaks, this 100-acre area faces threats from invasive species, deer overpopulation, littering, and urban runoff. Currently, only 15 acres are legally protected. The students propose expanding the easement, involving experts and graduate students in ongoing research and stewardship, and increasing public engagement through educational walks and increased and updated signage. …
Up In Smoke: Indigenous Techniques To Combat Climate Change And Increase Biodiversity,
2024
Wright State University
Up In Smoke: Indigenous Techniques To Combat Climate Change And Increase Biodiversity, Brad Kerry
Runkle Woods Symposia
Brad Kerry explores how Indigenous land management practices—particularly the use of prescribed fire—can be reintroduced to restore the Runkle Woods to its pre-colonial ecological state. Drawing on archaeological evidence, historical tree surveys, and ecological data, the presentation highlights how periodic, low-intensity fires historically maintained the forest’s biodiversity, promoted fire-adapted species like oak and hickory, and suppressed invasive plants. Kerry advocates for carefully planned, small-scale burns to combat "mesophication"—a shift toward shade-tolerant, fire-averse species—while increasing forest resilience to drought, invasive species, and climate change. The presentation underscores the ecological benefits of fire and outlines practical considerations for reintroducing controlled burns as …
Protecting Glen Helen With A Conservation Easement,
2024
Wright State University
Protecting Glen Helen With A Conservation Easement, Nick Boutis
Runkle Woods Symposia
Part 2 of the "Protecting Glen Helen with a Conservation Easement" presentation. This presentation offers an overview of Glen Helen, a 1,125-acre private nature preserve in Yellow Springs, Ohio, detailing its ecological significance, educational mission, and recent conservation efforts. Nick Boutis describes the preserve’s history, from ancient Indigenous use to its development as a resort and eventual donation to Antioch College. The focus centers on the complex, multi-year collaboration that led to establishing a permanent conservation easement, which now protects the land from development and subdivision. The presentation also highlights Glen Helen’s ongoing stewardship work, including habitat restoration, environmental education, …
Tecumseh Land Trust: Land Trusts And Land Preservation,
2024
Wright State University
Tecumseh Land Trust: Land Trusts And Land Preservation, Michele Burns
Runkle Woods Symposia
Part 1 of the "Protecting Glen Helen with a Conservation Easement" presentation. Michele Burns introduces the concept of land trusts—nonprofit organizations that protect various types of land, particularly through conservation easements, which are legally binding agreements that restrict development and preserve land forever. She explaines how Tecumseh Land Trust, founded in 1990, operates in southwest Ohio to protect farmland and natural areas without owning land directly and their work in protecting the Glen Helen preservation.
