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Articles 511 - 540 of 11486
Full-Text Articles in Forest Sciences
Assessing Ectomycorrhizal Advantage On Tree Species Within Differing Soil Materials In Spring Mountains, Nevada, Kirsten Soriano, Riley Jones, Daniel Thompson
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, Abraham F. Stone
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), National Smokejumper Association
Smokejumper Obituary: Harro, William Lewis “Bill” (Mccall 1968), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Place, Space, And Shifting Views Of Nature, Rachel Tracey
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, Erin Thomas
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, Evan Hardern
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, Shannon Doyal
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, Volker Bahn
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, Krystal Demarco, Donavon Mishler-Laporte, Cassie Dunn, Parneet Dhillon, Reagan Hardyman
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, Dillynn Blevins, Bhavishya Ratnavelu, Lauren Stetz, Corey Walls
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, Sarah Bingham, Terri Dozier, Logan Huber, Nicole Owino, Nathan Shafer
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), Mesa Grine, Daniel Hazelett, Cassie Healy, Padma Deepika Kandregula
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, Madeline Greene, Lindsay Smith, Matt Tyren, Leif Walters
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, Brad Kerry
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, Nick Boutis
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, Michele Burns
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.
Opening Remarks, Volker Bahn
Opening Remarks, Volker Bahn
Runkle Woods Symposia
Dr. Volker Bahn welcomes everyone to the 2024 Runkle Woods Symposium. This year's symposium is held in collaboration with the REACH Native American Heritage Festival. The event began with a land acknowledgement written by Shane Creepingbear in collaboration with Chief Ben Barns and other, recognizing the Indigenouse peoples whose lands we occupy and emphasizing our reponsbility to protect and restore the natrual word.
Multi-Decadal Aspen Dynamics Show Recruitment Bottleneck Across Complex Mountain Community, Michael T. Stoddard, Kyle C. Rodman, Connor D. Crouch, David W. Huffman, Peter Z. Fulé, Kristen M. Waring, Margaret M. Moore
Multi-Decadal Aspen Dynamics Show Recruitment Bottleneck Across Complex Mountain Community, Michael T. Stoddard, Kyle C. Rodman, Connor D. Crouch, David W. Huffman, Peter Z. Fulé, Kristen M. Waring, Margaret M. Moore
Aspen Bibliography
Changes in forest structure and shifts in tree species composition have occurred globally due to climate change and altered disturbance regimes. With climate trending toward warmer and drier conditions, these altered forest communities may reorganize in diverse and unpredictable ways. This is especially true in mountain environments where a range of vegetation types and abiotic conditions coexist. In this study, we used long-term permanent plot data from a site spanning broad environmental gradients to assess regeneration and mortality patterns in populations of aspen (Populus tremuloides). The study site, located on the San Francisco Peaks, Arizona, USA, is near …
Decentering Humans In Sustainability: A Framework For Earth-Centered Kinship And Practice, Tran Thi Mai Anh, Cassandra M. Reed-Vandam, Kendall Belopavlovich, Elizabeth Brown, Katherine E. Higdon, Shelby Nicole Lane-Clark, Katherine M. Mcgowen, Emily Shaw, Valoree Gagnon
Decentering Humans In Sustainability: A Framework For Earth-Centered Kinship And Practice, Tran Thi Mai Anh, Cassandra M. Reed-Vandam, Kendall Belopavlovich, Elizabeth Brown, Katherine E. Higdon, Shelby Nicole Lane-Clark, Katherine M. Mcgowen, Emily Shaw, Valoree Gagnon
Michigan Tech Publications
Contemporary Earth crises are challenging ideologies that enthrone humans at the center of existence and separate from nature, problematizing common notions of sustainability. Further inquiry, particularly sustainability of what and for whom, requires decentering the human experience toward other-than-human beings (e.g., plants and animals). In this article, we, as the Kinship Circle book club, share reflections from our monthly dialogue with the five-part book series Kinship: Belonging in a World of Relations, built on a foundation of partnership experiences with the Keweenaw Bay Indian Community Lake Superior Band of Ojibwa. Together, we discuss three major departures from our previous modes …
Wolves Across Borders, Ilse Storch, Aimee Tallian, Luigi Boitani, Cecilia Di Bernardi, Josip Kusak, Çağan Şekercioğlu, Douglas Smith, John Vucetich, Barbara Zimmermann
Wolves Across Borders, Ilse Storch, Aimee Tallian, Luigi Boitani, Cecilia Di Bernardi, Josip Kusak, Çağan Şekercioğlu, Douglas Smith, John Vucetich, Barbara Zimmermann
Michigan Tech Publications
No abstract provided.
Smokejumper Obituary: Brennan, Joseph William “Joe” (Redmond 1986), National Smokejumper Association
Smokejumper Obituary: Brennan, Joseph William “Joe” (Redmond 1986), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Davis, Jeffery R. “Jeff” (Missoula 1957), National Smokejumper Association
Smokejumper Obituary: Davis, Jeffery R. “Jeff” (Missoula 1957), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Montgomery, Bruce A. (Idaho City 1965), National Smokejumper Association
Smokejumper Obituary: Montgomery, Bruce A. (Idaho City 1965), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Osborne, John J. “Jack” (Missoula 1946), National Smokejumper Association
Smokejumper Obituary: Osborne, John J. “Jack” (Missoula 1946), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Howard, Charles D. “Doug” (Missoula 1964), National Smokejumper Association
Smokejumper Obituary: Howard, Charles D. “Doug” (Missoula 1964), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Prediction Of Turfgrass Quality Using Multispectral Uav Imagery And Ordinal Forests: Validation Using A Fuzzy Approach, Alexander Hernandez, Shaun Bushman, Paul Johnson, Matthew D. Robbins, Kaden Patten
Prediction Of Turfgrass Quality Using Multispectral Uav Imagery And Ordinal Forests: Validation Using A Fuzzy Approach, Alexander Hernandez, Shaun Bushman, Paul Johnson, Matthew D. Robbins, Kaden Patten
Plants, Soils, and Climate Faculty Publications
Protocols to evaluate turfgrass quality rely on visual ratings that, depending on the rater’s expertise, can be subjective and susceptible to positive and negative drifts. We developed seasonal (spring, summer and fall) as well as inter-seasonal machine learning predictive models of turfgrass quality using multispectral and thermal imagery collected using unmanned aerial vehicles for two years as a proof-of-concept. We chose ordinal regression to develop the models instead of conventional classification to account for the ranked nature of the turfgrass quality assessments. We implemented a fuzzy correction of the resulting confusion matrices to ameliorate the probable drift of the field-based …
Topography And Wildfire Jointly Mediate Postfire Ecosystem Multifunctionality In A Chinese Boreal Forest, Jianjian Kong, Zifan Ding, Wenhua Cai, Jiaxing Zu, Bo Liu, Jian Yang
Topography And Wildfire Jointly Mediate Postfire Ecosystem Multifunctionality In A Chinese Boreal Forest, Jianjian Kong, Zifan Ding, Wenhua Cai, Jiaxing Zu, Bo Liu, Jian Yang
Earth and Environmental Sciences Faculty Publications
Both topography and wildfire can exert significant influences on ecosystem processes and functions during boreal forest successions. However, their impacts on ecosystem multifunctionality (EMF) remain unclear. A mega-fire burned an area of 8700 hectares in the Great Xing’an Mountains in 2000, creating a wide range of fire severity levels across various topographic positions. This provided a unique opportunity to explore the impacts of mixed-severity fire disturbance in boreal forests. We evaluated the effect pathways of wildfire and topography on aboveground multifunctionality (AEMF), soil multifunctionality (SEMF), and overall multifunctionality (OEMF). We found that high-severity burning resulted in lower AEMF, SEMF, and …
Gains In Soil Carbon Storage Under Anthropogenic Nitrogen Deposition Are Rapidly Lost Following Its Cessation, Brooke E. Propson, Donald R. Zak, Aimée T. Classen, Andrew J Burton, Zachary B. Freedman
Gains In Soil Carbon Storage Under Anthropogenic Nitrogen Deposition Are Rapidly Lost Following Its Cessation, Brooke E. Propson, Donald R. Zak, Aimée T. Classen, Andrew J Burton, Zachary B. Freedman
Michigan Tech Publications
In the Northern Hemisphere, anthropogenic nitrogen (N) deposition contributed to the enhancement of the global terrestrial carbon (C) sink, partially offsetting CO2 emissions. Across several long-term field experiments, this ecosystem-level response was determined to be driven, in part, by the suppression of microbial activity associated with the breakdown of soil organic matter. However, since the implementation of emission abatement policies in the 1970s, atmospheric N deposition has declined globally, and the consequences of this decline are unknown. Here, we assessed the response of soil C storage and associated microbial activities, in a long-term field study that experimentally increased N deposition …
Smokejumper Obituary: Bassette, Gene L. “Geno” (Missoula 1980), National Smokejumper Association
Smokejumper Obituary: Bassette, Gene L. “Geno” (Missoula 1980), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
The Primacy Of Density-Mediated Indirect Effects In A Community Of Wolves, Elk, And Aspen, Elaine M. Brice, Eric J. Larsen, Daniel R. Stahler, Daniel R. Macnulty
The Primacy Of Density-Mediated Indirect Effects In A Community Of Wolves, Elk, And Aspen, Elaine M. Brice, Eric J. Larsen, Daniel R. Stahler, Daniel R. Macnulty
Aspen Bibliography
The removal or addition of a predator in an ecosystem can trigger a trophic cascade, whereby the predator indirectly influences plants and/or abiotic processes via direct effects on its herbivore prey. A trophic cascade can operate through a density-mediated indirect effect (DMIE), where the predator reduces herbivore density via predation, and/or through a trait-mediated indirect effect (TMIE), where the predator induces an herbivore trait response that modifies the herbivore's effect on plants. Manipulative experiments suggest that TMIEs are an equivalent or more important driver of trophic cascades than are DMIEs. Whether this applies generally in nature is uncertain because few …