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Rfia: An R Package For Estimation Of Forest Attributes With The Us Forest Inventory And Analysis Database, Hunter Stanke, Andrew O. Finley, Aaron S. Weed, Brian F. Walters, Grant M. Domke Jun 2020

Rfia: An R Package For Estimation Of Forest Attributes With The Us Forest Inventory And Analysis Database, Hunter Stanke, Andrew O. Finley, Aaron S. Weed, Brian F. Walters, Grant M. Domke

United States National Park Service: Publications

Forest Inventory and Analysis (FIA) is a US Department of Agriculture Forest Service program that aims to monitor changes in forests across the US. FIA hosts one of the largest ecological datasets in the world, though its complexity limits access for many potential users. rFIA is an R package designed to simplify the estimation of forest attributes using data collected by the FIA Program. Specifically, rFIA improves access to the spatiotemporal estimation capacity of the FIA Database via space–time indexed summaries of forest variables within user-defined population boundaries (e.g., geographic, temporal, biophysical). The package implements multiple design-based estimators, and has …


Exploring The Potential Of Nutrient Retention And Recycling With Wetlaculture Systems In Ohio With Physical And Landscape Models, Bingbing Jiang Jun 2020

Exploring The Potential Of Nutrient Retention And Recycling With Wetlaculture Systems In Ohio With Physical And Landscape Models, Bingbing Jiang

USF Tampa Graduate Theses and Dissertations

Significant expansion of agricultural land use has been widely recognized for leading to global and regional negative environmental impacts, especially increased eutrophication of surface water systems for the last half-century. The landscape-scale environmental problem of overloading nutrients to lakes and streams by excessive fertilizer use and increased human-caused N-fixation is in urgent need of a sustainable landscape-scale solution. Wetlands have long been considered as an effective way to remove nutrients from surface water. However, the influence of regional seasonality and hydrologic conditions on agricultural runoff treatment wetlands still needs more investigation. A new approach, “wetlaculture,” has recently described as a …


Do Similar Exposure Groups (Seg) Differ From Air Force Base To Air Force Base? A Combat Arms Training And Maintenance (Catm) Noise Exposure Comparison Of Moody Afb And Macdill Afb., Miriam F. Escobar Jun 2020

Do Similar Exposure Groups (Seg) Differ From Air Force Base To Air Force Base? A Combat Arms Training And Maintenance (Catm) Noise Exposure Comparison Of Moody Afb And Macdill Afb., Miriam F. Escobar

USF Tampa Graduate Theses and Dissertations

Noise is a common hazard for the military. The Department of Defense has set an Occupational Exposure Limit for noise at 85 dBA. The Air Force manages exposures using similar exposure groups (SEGs) which are formed at each Air Force Base. The purpose of this study was to compare the noise levels in SEGs in two Air Force bases across distance and time, and to review the effectiveness of the Air Force Hearing Conservation Program over distance and time. The SEGs chosen were Combat Arms Training and Maintenance (CATM) at Moody Air Force Base and MacDill Air Force Base because …


Using Historical Maps For Contaminated Site Identification And Prediction, And Environmental Justice Implications: A Case Study In Grand Rapids, Michigan, Dana Heusinkveld Jun 2020

Using Historical Maps For Contaminated Site Identification And Prediction, And Environmental Justice Implications: A Case Study In Grand Rapids, Michigan, Dana Heusinkveld

Masters Theses

As the production of synthetic chemicals has grown in the past centuries to increase production, lower costs, and generally make our lives more convenient, detecting and understanding the environmental impacts of these compounds has lagged significantly behind their mass production and wide-spread use. To combat this trend, sources of these contaminants, especially those that have been removed from the landscape, need to be quickly identified to make mitigation and remediation efforts more effective. In this study, historical Sanborn maps are used to extract and digitize historical site/land use in Grand Rapids during the early 1900s through the practical application of …


Physical And Chemical Properties Of Soils In Gambari Forest Reserve Near Ibadan, South Western Nigeria., Akintola O. Opeyemi Dr, Bodede Idayat Adewunmi Dr, Abiola Isaac Oluwaseyi Dr Jun 2020

Physical And Chemical Properties Of Soils In Gambari Forest Reserve Near Ibadan, South Western Nigeria., Akintola O. Opeyemi Dr, Bodede Idayat Adewunmi Dr, Abiola Isaac Oluwaseyi Dr

Journal of Bioresource Management

The different features of soil greatly affect the flora and vegetative diversity of a forest. The physical and chemical characteristics of soils in Onigambari Forest Reserve were evaluated to assess the fertility and productivity status of the soils. Fifteen soil samples collected from different sample locations were analyzed for soil texture (sand, silt and clay), bulk density, porosity, pH, organic matter, total nitrogen, available phosphorus, exchangeable bases (Na, K, Ca and Mg) and available micronutrients (Zn, Cu, Fe and Mn). Texturally, the studied soils were loamy sand and sandy loam with percentage of sands (71.2-84.2 %), silts (7.4-10.4 %) and …


The Ecological Impacts Of Changing Rainfall On The Arabian Peninsula, Zahra Ahmed M Alsomali Jun 2020

The Ecological Impacts Of Changing Rainfall On The Arabian Peninsula, Zahra Ahmed M Alsomali

Civil and Environmental Theses

The Arabian Peninsula is one of the hottest and driest regions in the world, and with climate change, not only is it getting hotter, it is also getting drier. It may be that the desert species here are well-adapted to dry conditions, in which case they may be able to withstand the changes, but it may be that desert species are already challenged by the extremely dry conditions. Here, data from 167 published studies were used to look at whether desert species were living below their optimum rainfall, and to compare the findings with species in other biomes. In all …


The Prairie Naturalist, Vol. 52, Issue 1, June 2020 Jun 2020

The Prairie Naturalist, Vol. 52, Issue 1, June 2020

The Prairie Naturalist

EDITOR’S NOTE • Jane E. Austin, Ph.D., Editor-in-Chief

Factors Associated with Larval Freshwater Drum Annual Peak Density in a Nebraska Irrigation Reservoir • Brett T. Miller, Brian C. Peterson, Keith D. Koupal, and Casey W. Schoenbeck

Small mammal communities in grasslands at the Grand Forks Air Force Base, North Dakota, USA • Lynda R. Lafond, Elizabeth H. Rave, and Kathryn A. Yurkonis

Evaluation of Four Larval Fish Sampling Methods in a Large Midwestern River • Nathan J. Lederman, Anthony R. Sindt, Douglas J. Dieterman, John D. Krenz, and Shannon J. Fisher

Wood Frogs (Rana sylvatica) in Southwestern Roberts …


Geospatial Applications To Mitigate Concentrated Animal Feeding Operations From Impacting Surface Water Resources, Elias Rex Jun 2020

Geospatial Applications To Mitigate Concentrated Animal Feeding Operations From Impacting Surface Water Resources, Elias Rex

Electronic Theses, Projects, and Dissertations

Concentrated Animal Feeding Operations (CAFOs) offer the ability to meet the rising demands of population growth by housing large amounts of livestock on relatively small areas of land, using medication to accelerate their maturation, and reusing waste products as fertilizers. However, there is a growing abundance of literature related to land use configurations and their effects on water resources, many of which highlight agriculture as a primary contributor of nutrients and fecal bacteria found in surrounding water resources. The purpose of this study is to advance the current knowledge surrounding CAFO land-use and its effect on tributaries within the Cape …


A Comparison Of Tribal Sovereignty, Self-Determination, And Environmental Justice At The Epa’S Onondaga Lake And Tar Creek Superfund Sites, Thomas Clark Jun 2020

A Comparison Of Tribal Sovereignty, Self-Determination, And Environmental Justice At The Epa’S Onondaga Lake And Tar Creek Superfund Sites, Thomas Clark

Dissertations, Theses, and Capstone Projects

The Environmental Protection Agency’s Superfund program mandates that Native American tribes are afforded the same treatment as states in the implementation of environmental remediation projects; however, the degree of coordination and consultation between the EPA and sovereign tribal governments varies widely between sites. Two of the Superfund program’s highest profile sites with Native American interest, northeast Oklahoma’s Tar Creek and central New York’s Onondaga Lake, are characterized by such a disparity in tribal participation. While Oklahoma’s Quapaw Tribe would ultimately enter into a number of cooperative agreements with the EPA for direct control over remedial projects, New York’s Onondaga Nation …


Characterization Of Metals And Non-Metals In The Indian Oil Sardine (Sardinella Longiceps) In The Northern United Arab Emirates, Shaima Malik Jun 2020

Characterization Of Metals And Non-Metals In The Indian Oil Sardine (Sardinella Longiceps) In The Northern United Arab Emirates, Shaima Malik

Biology Theses

The marine ecosystems of the world are especially susceptible to pollution arising from anthropogenic sources. The Arabian Gulf ecosystem is a partially enclosed hypersaline system with increasing levels of pollution arising from ongoing development in the region. Marine biota are expected to be influenced by pollutants and levels of trace elements in marine species could be indicative of increasing pollution. Bioaccumulation of 19 elements (As, Ca, Cd, Co, Cr, Cu, Hg, K, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sr, V, Zn) in 120 specimens of Indian oil sardines (Sardinella longiceps) purchased from local fish markets of …


Biological Control Of Fusarium Wilt In Date Palm (Phoenix Dactylifera L.) In The United Arab Emirates By Endophytic Actinobacteria, Aisha Abdullah Darwish Shambeh Alblooshi Jun 2020

Biological Control Of Fusarium Wilt In Date Palm (Phoenix Dactylifera L.) In The United Arab Emirates By Endophytic Actinobacteria, Aisha Abdullah Darwish Shambeh Alblooshi

Theses

Date palm trees suffer from many various serious diseases, including sudden decline syndrome (SDS). External symptoms were characterized by whitening on one side of the rachis, progressing from the base to the apex of the leaf until the whole leaf dies; while the internal disease symptoms included reddish roots and highly coloured vascular bundles causing wilting and death of the tree. Although three Fusarium spp. (F. oxysporum, F. proliferatum and F. solani) were isolated from diseased root samples, the fungal pathogen F. solani was associated with SDS on date palm in the United Arab Emirates (UAE). Fusarium spp. were identified …


Biological Control Of Sudden Decline Disease Of Date Palm (Phoenix Dactylifera L.) In The United Arab Emirates, Khawla Juma Saif Zeail Alwahshi Jun 2020

Biological Control Of Sudden Decline Disease Of Date Palm (Phoenix Dactylifera L.) In The United Arab Emirates, Khawla Juma Saif Zeail Alwahshi

Theses

Date palm orchards suffer from serious diseases, including sudden decline syndrome (SDS). The fungal pathogen Fusarium solani was associated with SDS on date palm in the United Arab Emirates (UAE). Application of Cidely® Top (difenoconazole and cyflufenamid) significantly inhibited the fungal mycelial growth In vitro and reduced SDS development on date palm seedlings pre-inoculated with F. solani under greenhouse conditions. This is the first report confirming that the chemical fungicide Cidely® Top is strongly effective against SDS on date palm. Fungal pathogens not only inhibit plant growth directly but also induce the plant to synthesize stress ethylene. Much of the …


Simulated Mine Land Reclamation Impact On Biomass Partitioning And Nutrient Contents In Loblolly Pine, Osarumen Egharevba May 2020

Simulated Mine Land Reclamation Impact On Biomass Partitioning And Nutrient Contents In Loblolly Pine, Osarumen Egharevba

Electronic Theses and Dissertations

Forest productivity on reclaimed mine land is hindered by soil compaction. Different techniques have been used to alleviate the effect of compaction to various degrees of success. The Forestry Reclamation Approach (FRA) was developed in the Appalachians and has been used to improve forest productivity on reclaimed mines in this region. The FRA provides a step by step method designed to reduce compaction, control erosion, provide land stabilization and accelerate forest succession. This method had not been evaluated in the Gulf Coastal Plain, where the pan scraper reclamation method is commonly used. However, using pan scrapers increases mine soil compaction …


Collaboration And Evaluation In Urban Sustainability And Resilience Transformations: The Keys To A Just Transition?, Liliana Elizabeth Caughman May 2020

Collaboration And Evaluation In Urban Sustainability And Resilience Transformations: The Keys To A Just Transition?, Liliana Elizabeth Caughman

Dissertations and Theses

Climate has changed and will continue changing; city populations are swelling as urbanization continues to accelerate; extreme environmental events like heat waves and floods are becoming more severe and more common; and the climate justice movement is rapidly gaining momentum. It in this context that municipal governments find themselves urgently seeking solutions to transition cities from extractive, vulnerable, and unjust to sustainable, resilient, and equitable. The task is complex and will require systemic transformations across interconnected social, environmental, and economic infrastructures. Emerging theories regarding how to govern such massive changes suggest Transition Management strategies and the values of a just …


From Environmental Activism To Environmental Education A Historical Overview, Evaluations And A Suggestion For A Path Forward For The Religious Institutions As Partners For A Global Green Shift, Tom Sverre Tomren May 2020

From Environmental Activism To Environmental Education A Historical Overview, Evaluations And A Suggestion For A Path Forward For The Religious Institutions As Partners For A Global Green Shift, Tom Sverre Tomren

Consensus

In this article, the author shows how all the major world religions have engaged in climate and environmental activism by developing theology and practical projects for more than fifty years. Using metadata from the European Social Survey, he shows that members of all religious traditions in Europe have become increasingly positive to the environment and nature. Especially noticeable is the increased engagement of Protestant Christians. Tomren uses a case study from the Lutheran Church in Norway to show how religious actors have a great influence on their own members. Against this background, the author argues that religious institutions should see …


Adam, Dust Of The Earth: A Paradise Received And Incomplete In The Biblical Accounts Of Creation. Some Philological Observations On The Creation Accounts, Jean Koulagna May 2020

Adam, Dust Of The Earth: A Paradise Received And Incomplete In The Biblical Accounts Of Creation. Some Philological Observations On The Creation Accounts, Jean Koulagna

Consensus

In Christian thinking about climate and environment issues, Dogmatic theology has often seemed to precede the exegesis of biblical texts. And when it is suggested, this exegesis is usually based on previously formulated theological conclusions. In other words, exegesis is there to support ethical stands that are no doubt laudable, but have been already established. Under these conditions, it becomes difficult to analyze those texts as they are and to understand them within the historical and anthropological contexts in which they were produced. This article attempts to break this trend by suggesting philological observations concerning the creation accounts in Genesis. …


Fetishized Nature Or Life-Giving Breath? Religion As Skill In Climate Change, Sigurd Bergmann May 2020

Fetishized Nature Or Life-Giving Breath? Religion As Skill In Climate Change, Sigurd Bergmann

Consensus

Anthropogenic climate change and unsustainable modes of production, consumption and lifestyles represent one of the most demanding challenges facing Earth, our home and humanity. Therefore religious belief, faith communities and spiritual commitment are highly needed to prepare the ground for what has been described as the necessary “great transformation”. To achieve this transformation, we need a new climate narrative and iconography, supported by a broad alliance of local and trans-local social forces. Religion has a significant role to play in this mobilization. This article begins by depicting several reasons that religion is a crucial driving force in the needed great …


Introducing A Comparative Ecotheology: Islamic Concept Of Basmalah And Luther’S Commentary On The Ten Commandments, Sayed Hassan Akhlaq May 2020

Introducing A Comparative Ecotheology: Islamic Concept Of Basmalah And Luther’S Commentary On The Ten Commandments, Sayed Hassan Akhlaq

Consensus

In our trying time of the COVID-19 pandemic, this paper discusses current environmental concerns in light of critical questions about the relationship between God and Mother Earth. This paper addresses this question in an inter-religious context. In order to fulfil its original duty of inculcating spirituality, faith can build a bridge between God and people on a constructive understanding of the Earth. To this end, Christianity and Islam offer notions of divine grace and divine lutf to do this duty. In this paper, I examine two inspiring sources: the Islamic motto of Basmalah, and Luther’s commentary on the Ten Commandments …


Religious Environmental Stewardship, The Sabbath And Sustainable Futures In Africa: Implications For Sustainability Discourse, Ben-Willie Kwaku Golo May 2020

Religious Environmental Stewardship, The Sabbath And Sustainable Futures In Africa: Implications For Sustainability Discourse, Ben-Willie Kwaku Golo

Consensus

In terms of goals and approaches, the potentials of religion and faith communities have had a prolonged marginalisation from the rather intense academic and political engagements in the suitability discourse with a consensus on the concept of sustainability as both an approach and a goal. In this paper, I argue that the highly religious African context would require a religiously inspired and phrased recourse towards a comprehensive sustainability, rather than a solely secular concept of environmental sustainability. This is much more so when environmental sustainability is largely a secular vision of a religious one – environmental stewardship. Ignoring the beliefs, …


Sustainability And Religion, Chad Rimmer, Mary (Joy) Philip May 2020

Sustainability And Religion, Chad Rimmer, Mary (Joy) Philip

Consensus

No abstract provided.


Ecology And Christian Education: How Sustainability Discourse And Theological Anthropology Inform Teaching Methods, Chad Rimmer May 2020

Ecology And Christian Education: How Sustainability Discourse And Theological Anthropology Inform Teaching Methods, Chad Rimmer

Consensus

This paper will sketch theoretical synergies between sustainability discourse and a Christian ecotheological approach to religious education, and point to pedagogical possibilities for bridging the two disciplines. Theology and natural science operate with certain anthropological assumptions. Those underlying anthropologies inform the teaching methods of environmental and religious education. Anthropologies that conceive of human being outside of ecological relationships are a root problem of our current ecological crisis. Many economic, political and social discourses colonize people from the land, particularly children, exacerbating the root causes of sustainability. This paper affirms that linking sustainability discourse and religious education is a way to …


Women, Climate Change And Eco-Theology, Mary (Joy) Philip May 2020

Women, Climate Change And Eco-Theology, Mary (Joy) Philip

Consensus

The impact of climate change is not proportionate to the ones that contribute to it. It is the world’s poorest and those in vulnerable situations, especially women and children, who bear the brunt of environmental, economic and social shocks. This paper highlights the fact that women are disproportionately affected by climate change, when they are primarily the ones that have been caring for and preserving the earth. This paper also argues for the need for eco-consciousness and the increased participation of women in climate initiatives, as women have a theology and spirituality undergirded by eco-consciousness.


Genetic Biocontrol For Invasive Species, John L. Teem, Luke Alphey, Sarah Descamps, Matt P. Edgington, Owain Edwards, Neil Gemmell, Tim Harvey-Samuel, Rachel L. Melnick, Kevin P. Oh, Antoinette J. Piaggio, J. Royden Saah, Dan Schill, Paul Thomas, Trevor Smith, Andrew Roberts May 2020

Genetic Biocontrol For Invasive Species, John L. Teem, Luke Alphey, Sarah Descamps, Matt P. Edgington, Owain Edwards, Neil Gemmell, Tim Harvey-Samuel, Rachel L. Melnick, Kevin P. Oh, Antoinette J. Piaggio, J. Royden Saah, Dan Schill, Paul Thomas, Trevor Smith, Andrew Roberts

United States Department of Agriculture Wildlife Services: Staff Publications

Invasive species are increasingly affecting agriculture, food, fisheries, and forestry resources throughout the world. As a result of global trade, invasive species are often introduced into new environments where they become established and cause harm to human health, agriculture, and the environment. Prevention of new introductions is a high priority for addressing the harm caused by invasive species, but unfortunately efforts to prevent new introductions do not address the economic harm that is presently manifested where invasive species have already become established. Genetic biocontrol can be defined as the release of organisms with genetic methods designed to disrupt the reproduction …


La Habana: A History Of Society, Livelihood, Movement, And Land Use On The Iquitos-Nauta Highway, Katie Brown May 2020

La Habana: A History Of Society, Livelihood, Movement, And Land Use On The Iquitos-Nauta Highway, Katie Brown

Undergraduate Honors Theses

With increasing infrastructural projects and land titling in the Peruvian Amazon, many changes are occurring within small roadside communities. In this case study, we investigate how these changes impact livelihoods, land use, travel patterns, and social relations within the broader concepts of development, privatization of land, and commodification of nature. Specifically we focus on the caserío La Habana situated on the Iquitos-Nauta highway in the Loreto region of Peru. Semi-formal interviews and ethnographic methods were conducted to gather information on social organization, history of the community, land use practices, migration patterns, opinions on the road, and livelihood strategies. After data …


Nitrate Transport In The Unsaturated Zone, Patience Bosompemaa May 2020

Nitrate Transport In The Unsaturated Zone, Patience Bosompemaa

Theses and Dissertations

Abundance of nitrate in the soil is a basic issue in agricultural land-use regions, causing eutrophication and pollution of water bodies. The study focuses on the role of a saturated buffer zone (SBZ) to remove nitrate from the groundwater resulting from agricultural activities. The study area is herbaceous SBZ located in central Illinois (40.614382ºN, -89.023542ºW), which lies between a stream and a farm located upgradient. The SBZ has been outfitted with an agricultural runoff treatment system that diverts tile drainage into the subsurface of the SBZ rather than discharging into the stream. Within the SBZ three experimental areas composed of …


Space And Depth-Resolved Naturally Occurring Toxic Groundwater Species In Bangladesh And Rwanda: Origination And Risk Analysis, Kenneth Hamilton May 2020

Space And Depth-Resolved Naturally Occurring Toxic Groundwater Species In Bangladesh And Rwanda: Origination And Risk Analysis, Kenneth Hamilton

Civil and Environmental Engineering Theses and Dissertations

Access to safe potable water is a necessity for all. Groundwater is a commonly relied upon drinking water source for many areas around the world. This is especially true for communities in high density, rural settings. Such is the case for populations near Cox’s Bazaar, Bangladesh, and in the Bugesera region of Rwanda. Sediment and groundwater contamination, through toxic dissolved species, represents a significant public health risk to exposed populations. Tropical soils, such as the soil profiles in Bangladesh and Rwanda, often contain higher concentrations of heavy metals (Rieuwerts, 2007). Additionally, nitrate from fertilizers, are widely used on the soils …


Effect Of Post-Consumer Content And Bioplastic Incorporation On Polymeric Resin In Consumer Applications, Shelby Bicknell May 2020

Effect Of Post-Consumer Content And Bioplastic Incorporation On Polymeric Resin In Consumer Applications, Shelby Bicknell

Electronic Theses & Dissertations

Controversy surrounds the use of plastic products, primarily due to their potentially negative impact on the environment at the end of their lifecycle. The most widely used plastics are manufactured from petrochemicals such as petroleum, coal or natural gas. Petrochemical plastics are not able to readily breakdown in the environment, which aggravates the existing pollution problems. Fortunately, there are eco-friendly alternatives to petrochemical-based plastics. Bioplastics may be derived from renewable sources, biodegradable, or both. Bio-based plastics are plastics that may be derived from renewable biomass sources including, but not limited to, vegetable oils, cornstarch, straw, woodchips, and food waste. They …


A Comprehensive Look At The Benefits Of Traditional Ecological Knowledge Of Native American Indigenous Communities For Fire Management Practices In Northern California, Christopher Mishima May 2020

A Comprehensive Look At The Benefits Of Traditional Ecological Knowledge Of Native American Indigenous Communities For Fire Management Practices In Northern California, Christopher Mishima

Master's Projects and Capstones

Wildfires are currently ravaging California, destroying the land and the livelihood of many vulnerable communities. This research explores the value of Traditional Ecological Knowledge (TEK) as a tool to aid in the fight against wildfires. Revitalization of Native American culture and traditional practices, such as prescribed burns, can transform current fire management practices. This research examined the connections among three aspects of fire management: Native American TEK, non-native ecological field studies and modelling, and current government fire policies and management practices. Through primary interviews and case studies, this research found that the Native American communities in the West have a …


The Relationship Among Financial Institutions, Safeguards And Hydroelectric Dams In The Amazon, Amy Juelsgaard May 2020

The Relationship Among Financial Institutions, Safeguards And Hydroelectric Dams In The Amazon, Amy Juelsgaard

Master's Projects and Capstones

Since 2015, the Amazon experienced an infrastructure boom with more than $70 billion in infrastructure projects planned in the coming years. Large-scale projects have resulted in detrimental environmental and social impacts in the region over the last fifty years. This paper uses policy analysis and case studies to examine the evolution of financial institutions and their safeguards over time and how this evolution has affected the environmental and social impacts of hydroelectric dams in the Amazon. The case studies of two hydroelectric projects, the Coca Codo Sinclair Dam in Ecuador and the Belo Monte Dam in Brazil, highlight that the …


Impacts Of Medusahead (Elymus Caput-Medusae L.) Management On Plant Communities In California’S Valley Grasslands, Nicole Carpenter May 2020

Impacts Of Medusahead (Elymus Caput-Medusae L.) Management On Plant Communities In California’S Valley Grasslands, Nicole Carpenter

Master's Projects and Capstones

California’s valley grasslands are one of the most invaded ecosystems in the state. It is estimated that valley grasslands contain between 90 to 99% cover of non-native plants. The most recent wave of invasive plants has included medusahead (Elymus caput-medusae L.). Medusahead is an annual grass that matures two to four weeks later than most other grasses. Management of medusahead includes the use of herbicides, targeted grazing, prescribed burns, and mechanical control. The primary focus of most studies on the use of these management methods is on the control of medusahead rather than the impacts on non-target plants. This …