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Utah’S Role In Protecting The Mormon Trail During The Civil War, Kenneth L. Alford Ph.D. Jan 2015

Utah’S Role In Protecting The Mormon Trail During The Civil War, Kenneth L. Alford Ph.D.

Faculty Publications

This chapter (from the 2015 book “Far Away in the West: Reflections on the Mormon Pioneer Trail” published by the Brigham Young University Religious Studies Center) sets the stage for Utah Territory’s role protecting the Mormon Trail during the Civil War by outlining the Utah War (1857-1858). This essay begins by comparing and contracting Washington, DC’s wartime interest in the trail with that of The Church of Jesus Christ of Latter-day Saints and Utah Territory. The essay then outlines the changing parties who were responsible for the trail between 1861 and 1865 – the U.S. Army (spring-summer 1861), no one …

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Beginnings: The Viejo Period, Jane H. Kelley, Michael T. Searcy Jan 2015

Beginnings: The Viejo Period, Jane H. Kelley, Michael T. Searcy

Faculty Publications

he history of the Medio Period is marked by population growth, aggregation, ideological shifts, and the building of the large, central polity of Paquimé (Casas Grandes). But before this colossal social transformation took place, people in northwest Chihuahua lived a lifestyle that had persisted for at least 400 years, which is known as the Viejo Period. his period is far from the beginning of human occupation in this area; Paleo points, extensive Archaic remains, the early agricultural site of Cerro Juanaqueña (Hard and Roney 1998), and an early pithouse period preceded Paquimé and can be seen as more distant precursors …

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Sibling Snapshots: Living With Youth Who Have Autism Or Down Syndrome, Tina M. Taylor, Jessica L. Rosemann, Aimee L. Latta Palicharla, Tammy Rampton, Barbara Mandleco, Donna Freeborn Jan 2015

Sibling Snapshots: Living With Youth Who Have Autism Or Down Syndrome, Tina M. Taylor, Jessica L. Rosemann, Aimee L. Latta Palicharla, Tammy Rampton, Barbara Mandleco, Donna Freeborn

Faculty Publications

This study used photography to capture important symbols in the lives of 14 siblings of 13 youth with autism (ASD) and 16 siblings of 15 youth with Down syndrome (DS), and then determine if there were differences in photographs taken according to type of developmental disability, age, and gender of the sibling. Photographs were divided into two categories: photographs of people, including family and non-family members, and non-people, including personal items/objects, animals, and buildings/scenery. Siblings of youth with DS took a higher percent age of photographs of people and family members than siblings of youth with ASD. There were also …

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Measuring Student Engagement In Technology-Mediated Learning: A Review, Curtis R. Henrie, Lisa R. Halverson, Charles R. Graham Jan 2015

Measuring Student Engagement In Technology-Mediated Learning: A Review, Curtis R. Henrie, Lisa R. Halverson, Charles R. Graham

Faculty Publications

Using digital technology to deliver content, connect learners, and enable anytime, anywhere learning is increasing, but keeping students engaged in technology-mediated learning is challenging. Instructional practices that encourage greater engagement are essential if we are to effectively use digital instructional technologies. To determine the impact of innovative instructional practices on learning, we need useful measures of student engagement. These measures should be adaptable to the unique challenges to studying technology-mediated learning, such as when students learn at a distance or in a blended learning course. In this review, we examine existing approaches to measure engagement in technology-mediated learning. We identify …

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Normative Stakeholder Capitalism: Getting From Here To There, Marc-Charles Ingerson, Bradley R. Agle, Thomas Donalson, Paul C. Godfrey, Jared D. Harris, Jeffrey S. Harrison, Adrian Keevil, Ronald K. Mitchell, Robert A. Phillips Jan 2015

Normative Stakeholder Capitalism: Getting From Here To There, Marc-Charles Ingerson, Bradley R. Agle, Thomas Donalson, Paul C. Godfrey, Jared D. Harris, Jeffrey S. Harrison, Adrian Keevil, Ronald K. Mitchell, Robert A. Phillips

Faculty Publications

The capability of normative declarations to alter outcomes is well accepted. 'We hold these truths to be self-evident ... ,' 'inalienable rights, ... life, liberty, ... pursuit of happiness, .. .' and similar statements contain within them social energy that inspires the mind, justifies new modes of thought, and enables change .... Normative discourse, we therefore believe, must continue to be endemic to stakeholder theory and research if scholars want this theory to flourish and fulfill its aims as a theory of the firm-not the least of which is attending to the long-run interests of both the business corporation and …

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Full Issue, Vol. 7 Dec 2014

Full Issue, Vol. 7

Monographs of the Western North American Naturalist

No abstract provided.

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On The Fast Track To Recovery: Island Foxes On The Northern Channel Islands, Timothy J. Coonan, Victoria Bakker, Brian Hudgens, Christina L. Boser, David K. Garcelon, Scott A. Morrison Dec 2014

On The Fast Track To Recovery: Island Foxes On The Northern Channel Islands, Timothy J. Coonan, Victoria Bakker, Brian Hudgens, Christina L. Boser, David K. Garcelon, Scott A. Morrison

Monographs of the Western North American Naturalist

The island fox (Urocyon littoralis) represents an unusual case of a species that achieved virtual recovery a mere 15 years after population declines were first discovered. Island fox subspecies on San Miguel, Santa Rosa, and Santa Cruz islands declined precipitously in the mid-1990s due to predation by Golden Eagles (Aquila chrysaetos), which had not historically bred on the islands. In 2008, a 10-year period of recovery action implementation ended. The recovery program had included captive breeding and reintroduction of island foxes and capture and relocation of Golden Eagles. Free-ranging fox populations have been monitored to assess …

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Native Plant Recovery In Study Plots After Fennel (Foeniculum Vulgare) Control On Santa Cruz Island, Paula J. Power, Thomas Stanley, Clark Cowan, James R. Roberts Dec 2014

Native Plant Recovery In Study Plots After Fennel (Foeniculum Vulgare) Control On Santa Cruz Island, Paula J. Power, Thomas Stanley, Clark Cowan, James R. Roberts

Monographs of the Western North American Naturalist

Santa Cruz Island is the largest of the California Channel Islands and supports a diverse and unique flora which includes 9 federally listed species. Sheep, cattle, and pigs, introduced to the island in the mid-1800s, disturbed the soil, browsed native vegetation, and facilitated the spread of exotic invasive plants. Recent removal of introduced herbivores on the island led to the release of invasive fennel (Foeniculum vulgare), which expanded to become the dominant vegetation in some areas and has impeded the recovery of some native plant communities. In 2007, Channel Islands National Park initiated a program to control fennel …

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Argentine Ant Management In Conservation Areas: Results Of A Pilot Study, Christina L. Boser, Cause Hanna, Kathryn R. Faulkner, Coleen Cory, John M. Randall, Scott A. Morrison Dec 2014

Argentine Ant Management In Conservation Areas: Results Of A Pilot Study, Christina L. Boser, Cause Hanna, Kathryn R. Faulkner, Coleen Cory, John M. Randall, Scott A. Morrison

Monographs of the Western North American Naturalist

Argentine ants (Linepithema humile) have invaded many areas of conservation concern, including half of the California Channel Islands. On Santa Cruz Island, the species has invaded approximately 2% of the island, and the infestations are expanding. Argentine ants displace many other invertebrates, and their expansion throughout the island could lead to the extirpation of native invertebrate species and the disruption of key ecological processes (e.g., plant-pollinator interactions and seed dispersal). We describe a treatment protocol to manage or eliminate Argentine ants on Santa Cruz Island developed by The Nature Conservancy and the National Park Service, in collaboration with …

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Ecosystem Restoration On Santa Catalina Island: A Review Of Potential Approaches And The Promise Of Bottom-Up Invader Management, Denise A. Knapp Dec 2014

Ecosystem Restoration On Santa Catalina Island: A Review Of Potential Approaches And The Promise Of Bottom-Up Invader Management, Denise A. Knapp

Monographs of the Western North American Naturalist

Restoring large, complex landscapes can be challenging, especially given that some threats to native diversity and ecological function cannot be wholly eliminated. Santa Catalina Island, California, provides a valuable case study because its challenges include a variety of ecosystem threats, legal restrictions, and cultural attachments, as well as a vocal resident human population that often does not agree with conservation actions. Catalina Island has been highly modified by numerous invasive species, fragmentation and erosion from roads, altered hydrology from dams, and increased fire frequency. In this paper, I build on a previously published review of resources and threats and discuss …

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A Program To Eradicate Twenty-Four Nonnative Invasive Plant Species From Santa Cruz Island, Coleen Cory, John J. Knapp Dec 2014

A Program To Eradicate Twenty-Four Nonnative Invasive Plant Species From Santa Cruz Island, Coleen Cory, John J. Knapp

Monographs of the Western North American Naturalist

Santa Cruz Island, California, has been free of nonnative vertebrates since 2007, but nonnative invasive plants remain one of the most significant threats to the recovery of the island’s native ecosystems. Just over one-fourth of the island’s flora is comprised of nonnative, naturalized plant species. In 2007, an island-wide invasive plant survey indicated that several species were candidates for eradication based on factors such as their distribution, abundance, invasiveness, and known or projected harmful impacts on the native biota. In 2008, The Nature Conservancy (TNC) and Native Range, Inc., initiated a program to eliminate 15 invasive plant species from TNC’s …

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Laysan Albatross On Guadalupe Island, México: Current Status And Conservation Actions, Julio C. Hernández-Montoya, Luciana Luna-Mendoza, Alfonso Aguirre-Muñoz, Federico Méndez-Sánchez, Maria Maria Félix-Lizárraga, J. M. Barredo-Barberena Dec 2014

Laysan Albatross On Guadalupe Island, México: Current Status And Conservation Actions, Julio C. Hernández-Montoya, Luciana Luna-Mendoza, Alfonso Aguirre-Muñoz, Federico Méndez-Sánchez, Maria Maria Félix-Lizárraga, J. M. Barredo-Barberena

Monographs of the Western North American Naturalist

Guadalupe Island, off the Baja California peninsula, México, hosts the most important growing Laysan Albatross (Phoebastria immutabilis) breeding colony in the eastern Pacific. Since this seabird’s first arrival in 1983, it has been affected by predation from feral cats (Felis catus), present on Guadalupe since the late 19th century. Heavy predation events have been recorded on the island, so we initiated a feral cat control campaign in 2003 and began collecting baseline information for developing an eradication plan. At the same time, we conducted seasonal monitoring of Laysan Albatross reproductive success in order to assess the …

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Reintroduction Of Historically Extirpated Taxa On The California Channel Islands, Scott A. Morrison, Kevin A. Parker, Paul W. Collins, W. Chris Funk, T. Scott Sillett Dec 2014

Reintroduction Of Historically Extirpated Taxa On The California Channel Islands, Scott A. Morrison, Kevin A. Parker, Paul W. Collins, W. Chris Funk, T. Scott Sillett

Monographs of the Western North American Naturalist

Most invasive alien vertebrate populations on the Channel Islands of California have been eradicated over the past 30 years. Unfortunately, removal of these introduced herbivores or predators came too late for some native flora and fauna, and numerous populations are now extinct. Here, we describe a systematic approach to reintroducing extirpated native taxa as a means for rebuilding natural communities and enhancing the resiliency of island ecosystems. Reintroduction efforts typically focus on a single species or site. In contrast, we propose that if reintroduction is a shared conservation goal of managers across the islands, the associated planning, implementation, and monitoring …

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Importance Of Early Life Stage Limitations On Recovering Populations Of Leptosyne Gigantea, San Miguel Island, California, Catherin A. Schwemm Dec 2014

Importance Of Early Life Stage Limitations On Recovering Populations Of Leptosyne Gigantea, San Miguel Island, California, Catherin A. Schwemm

Monographs of the Western North American Naturalist

Plant communities dominated by Leptosyne gigantea (tickseed, formerly giant coreopsis) are distributed widely across the California Islands and provide critical habitat for understory plants and vertebrates, especially in landscapes where trees are absent. Leptosyne gigantea populations were severely impacted by nonnative herbivores and by grazing and ranching practices during the last century. Although these impacts have been absent from most of the islands for over 2 decades, extensive spatial heterogeneity exists both within and across the islands in relation to population growth. Many sites support very dense stands of L. gigantea that established postgrazing; whereas others, particularly on Santa Barbara …

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Space Use And Home-Range Size Of Barn Owls On Santa Barbara Island, Sarah K. Thomsen, Caitlin E. Kroeger, Peter H. Bloom, A. Laurie Harvey Dec 2014

Space Use And Home-Range Size Of Barn Owls On Santa Barbara Island, Sarah K. Thomsen, Caitlin E. Kroeger, Peter H. Bloom, A. Laurie Harvey

Monographs of the Western North American Naturalist

Spatial overlap between predators and prey is often a key component of predator-prey interactions. Barn Owls (Tyto alba) are important predators of some species of conservation concern on the Channel Islands in southern California; therefore, understanding patterns of owl space use on these islands could provide insights on variations in predation risk that may be useful for conservation efforts of Barn Owl prey. In this study, our objectives were to investigate home-range size and space use by individual owls on Santa Barbara Island, which at 2.6 km2 is the smallest island within the Channel Islands National Park. …

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Status Of The Santa Catalina Island Fox Thirteen Years After Its Decline, Julie L. King, Calvin L. Duncan, David K. Garcelon Dec 2014

Status Of The Santa Catalina Island Fox Thirteen Years After Its Decline, Julie L. King, Calvin L. Duncan, David K. Garcelon

Monographs of the Western North American Naturalist

Santa Catalina Island was home to an estimated 1342 adult island foxes (Urocyon littoralis catalinae) in 1990. Nine years later, fox sightings declined and reports of dead or dying foxes increased. An island-wide trapping effort was initiated after a fox carcass tested positive for Canine distemper virus (CDV). In 1999, only 10 foxes were captured east of the Two Harbors isthmus during 1046 trap-nights. A multifaceted conservation plan was implemented in 2000 to conserve the Santa Catalina population of island fox. Initial recovery actions took place from 2000 to 2005 and resulted in the translocation of 22 juvenile …

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On The Origins Of The Insect Fauna Of California's Channel Islands: A Comparative Phylogeographic Study Of Island Beetles, Michael S. Caterino, Stylianos Chatzimanolis, Maxi Polihronakis Richmond Dec 2014

On The Origins Of The Insect Fauna Of California's Channel Islands: A Comparative Phylogeographic Study Of Island Beetles, Michael S. Caterino, Stylianos Chatzimanolis, Maxi Polihronakis Richmond

Monographs of the Western North American Naturalist

California’s 8 Channel Islands host a large diversity of insects, the vast majority of which are shared with mainland southern California. The existence of a small number of recognized endemic species, however, suggest that, for some lineages, the islands are isolated enough to have permitted significant differentiation. Here we investigate the phylogeographic relationships of 4 beetle species (Thinopinus pictus, Hadrotes crassus, Hypocaccus lucidulus, and Nyctoporis carinata): all occurring on the mainland and on multiple (up to 6) Channel Islands. Sequences of the cytochrome oxidase I mitochondrial gene (and, for one species, an intron in the …

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Changes In Vegetation And Biological Soil Crust Communities On Sand Dunes Stabilizing After A Century Of Grazing On San Miguel Island, Channel Islands National Park, California, Kristine L. Zellman Dec 2014

Changes In Vegetation And Biological Soil Crust Communities On Sand Dunes Stabilizing After A Century Of Grazing On San Miguel Island, Channel Islands National Park, California, Kristine L. Zellman

Monographs of the Western North American Naturalist

San Miguel Island is the westernmost of the California Channel Islands and one of the windiest areas on the west coast of North America. The majority of the island is covered by coastal sand dunes, which were stripped of vegetation and subsequently mobilized due to droughts and sheep ranching during the late 19th century and early 20th century. Since the removal of grazing animals, vegetation and biological soil crusts have once again stabilized many of the island’s dunes. In this study, historical aerial photographs and field surveys were used to develop a chronosequence of the pattern of change in …

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Strategies For Biosecurity On A Nearshore Island In California, Christina L. Boser, Coleen Cory, Kathryn R. Faulkner, John M. Randall, John J. Knapp, Scott A. Morrison Dec 2014

Strategies For Biosecurity On A Nearshore Island In California, Christina L. Boser, Coleen Cory, Kathryn R. Faulkner, John M. Randall, John J. Knapp, Scott A. Morrison

Monographs of the Western North American Naturalist

Islands provide refuge for many rare and endemic species but are especially vulnerable to invasion by nonnative species. Invasive alien species are a major factor in the imperilment and extinction of island biota. Biosecurity protocols are designed to prevent or quickly detect the transport of harmful nonnative species, with the goal of eliminating the high economic cost of invasive species removal and the biological cost of damage caused by nonnative organisms. Effective biosecurity protocols require a balanced approach to on-island monitoring, off-island surveillance and prevention practices, rapid response, and educational outreach. Here we use the biosecurity program on Santa Cruz …

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Restoration Of A Coastal Wetland At Prisoners Harbor, Santa Cruz Island, Channel Islands National Park, California, Paula J. Power, Joel Wagner, Mike Martin, Marie Denn Dec 2014

Restoration Of A Coastal Wetland At Prisoners Harbor, Santa Cruz Island, Channel Islands National Park, California, Paula J. Power, Joel Wagner, Mike Martin, Marie Denn

Monographs of the Western North American Naturalist

Prisoners Harbor of Santa Cruz Island, California, was historically the site of a 4.86-ha coastal wetland and riparian system—the largest on the California Channel Islands. The site was occupied by native people for 3000 years until the 1830s. During the late 1800s, ranchers filled about half of the wetland area to build livestock corrals and other facilities. They also rerouted the main stream channel, Cañada del Puerto, and built a stone wall and earthen berm along its west bank. This disconnected the stream from its floodplain and inadvertently caused erosion of a Native American archeological site. The National Park Service …

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Evaluation Of New Telemetry Technologies For Research On Island Foxes, Brian Cypher, Elizabeth Drake, Jennifer Savage, Julie King, Katherine Ralls, Timothy Coonan, John Perrine, Calvin Duncan Dec 2014

Evaluation Of New Telemetry Technologies For Research On Island Foxes, Brian Cypher, Elizabeth Drake, Jennifer Savage, Julie King, Katherine Ralls, Timothy Coonan, John Perrine, Calvin Duncan

Monographs of the Western North American Naturalist

New telemetry technologies have recently become available for research on island foxes (Urocyon littoralis). These include GPS units, which collect location data, and proximity logger units, which record contacts between individuals. We evaluated these technologies on island foxes through 4 field studies. GPS collars were deployed on foxes on Santa Catalina during 2007–2008 (n = 20) and 2010–2011 (n = 5) and on Santa Rosa during 2009–2010 (n = 14). The GPS units had multiple issues including malfunctioning drop-off mechanisms, failure of some units to yield data, low location acquisition rates, improper factory programming, high rates of premature …

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Identifying Evolutionarily Significant Units And Prioritizing Populations For Management On Islands, Jeanne M. Robertson, Kathryn M. Langin, T. Scott Sillett, Scott A. Morrison, Cameron K. Ghalambor, W. Chris Funk Dec 2014

Identifying Evolutionarily Significant Units And Prioritizing Populations For Management On Islands, Jeanne M. Robertson, Kathryn M. Langin, T. Scott Sillett, Scott A. Morrison, Cameron K. Ghalambor, W. Chris Funk

Monographs of the Western North American Naturalist

Islands host exceptionally high levels of endemism compared to mainland regions and are subject to disproportionately high rates of extinction and imperilment. Therefore, the protection and preservation of taxonomic units that are endemic to islands is a key component in mitigating the loss of global biodiversity. However, determining what is “endemic” on islands can be challenging. Conservation units are commonly delineated based on genetic divergence at neutral loci (e.g., genetic differentiation at microsatellite loci or reciprocal monophyly based on mitochondrial genes). Island populations of nonvolant species are expected to meet this criterion, regardless of adaptive differences, due to geographic isolation, …

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Status And Trends Of The Rocky Intertidal Community On The Farallon Islands, Jan Roletto, Scott Kimura, Natalie Cosentino-Manning, Ryan Berger, Russell Bradley Dec 2014

Status And Trends Of The Rocky Intertidal Community On The Farallon Islands, Jan Roletto, Scott Kimura, Natalie Cosentino-Manning, Ryan Berger, Russell Bradley

Monographs of the Western North American Naturalist

The Farallon Islands in the Gulf of the Farallones National Marine Sanctuary (GFNMS) is a 7-island chain located 48 km west of San Francisco, California. Since 1993, GFNMS biologists and associates have monitored algal and invertebrate species abundances on the intertidal shores of the 2 South Farallon Islands. The monitoring occurred 1–3 times yearly in 6 study areas. In each study area, 3–4 permanent, 0.15-m2 quadrats located between the upper and midintertidal zones were sampled for algal and sessile invertebrate cover and invertebrate counts. Taxonomic surveys were also completed to document other species in the vicinity of the sampling …

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Stand Structure And Acorn Production Of The Island Scrub Oak (Quercus Pacifica), Mario B. Pesendorfer, Kathryn M. Langin, Brian Cohen, Zachary Principe, Scott A. Morrison, T. Scott Sillett Dec 2014

Stand Structure And Acorn Production Of The Island Scrub Oak (Quercus Pacifica), Mario B. Pesendorfer, Kathryn M. Langin, Brian Cohen, Zachary Principe, Scott A. Morrison, T. Scott Sillett

Monographs of the Western North American Naturalist

Island scrub oak (Quercus pacifica), a keystone chaparral species on Santa Rosa, Santa Cruz, and Santa Catalina islands, provides habitat for a diverse assemblage of plant and animal species. The restoration of oak habitat is a management priority, but little is known about Q. pacifica stand structure and acorn production, 2 parameters that are important in the species’ recovery. To investigate whether species interactions and abiotic conditions have an effect on stand structure and acorn production, we sampled within-stand densities, tree sizes, and acorns in the 3 island populations that have been exposed to different herbivores, seed predators, …

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Contributions To An Arthropod Inventory Of Santa Cruz Island, California, Ida Naughton, Michael S. Caterino, Cause Hanna, David Holway Dec 2014

Contributions To An Arthropod Inventory Of Santa Cruz Island, California, Ida Naughton, Michael S. Caterino, Cause Hanna, David Holway

Monographs of the Western North American Naturalist

Arthropods have been understudied on Santa Cruz Island, resulting in an incomplete understanding of these diverse and ecologically important members of island ecosystems. To enhance the current understanding of Santa Cruz Island biodiversity, we sampled arthropods in 2 native plant habitats: island scrub oak (Quercus pacifica) woodland and patches of island morning glory (Calystegia macrostegia ssp. macrostegia). We used 4 standardized sampling techniques to sample arthropods in 16 Q. pacifica woodland plots. We sampled arthropods associated with C. macrostegia by pan trapping within 1 m of blooming morning glory individuals. In total, we sampled over 18,000 …

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Identification Of The Infection Route Of A Fusarium Seed Pathogen Into Non-Dormant Bromus Tectorum Seeds, Janalynn Franke Dec 2014

Identification Of The Infection Route Of A Fusarium Seed Pathogen Into Non-Dormant Bromus Tectorum Seeds, Janalynn Franke

Theses and Dissertations

The genus Fusarium has a wide host range and causes many different forms of plant disease. These include seed rot and seedling blight diseases of cultivated plants. The Fusarium-caused diseases of wild plants are less well-known. In this study we examined Fusarium sp. n-caused disease development on non-dormant seeds of the important rangeland weed Bromus tectorum as part of broader studies of the phenomenon of stand failure or ‘die-off’ in this annual grass. We previously isolated an undescribed species in the Fusarium tricinctum species complex from die-off soils and showed that it is pathogenic on seeds. It can cause high …

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The Role Of Ceramides In Mediating Endotoxin-Induced Mitochondrial Disruption, Melissa Ellen Hansen Dec 2014

The Role Of Ceramides In Mediating Endotoxin-Induced Mitochondrial Disruption, Melissa Ellen Hansen

Theses and Dissertations

Ceramides are sphingolipids that serve as important second messengers in an increasing number of stress-induced pathways. Ceramide has long been known to affect the mitochondria, altering both morphology and physiology. Lipopolysaccharide (LPS) is a prevalent circulating inflammatory agent in obesity, potentially mediating some of the pathologies associated with weight gain. Given previous findings of TLR4-mediated ceramide accrual and ceramide-mediated mitochondrial disruption, we questioned whether ceramide is necessary for LPS-induced mitochondrial disruption. We found that LPS treatment increased gene transcript levels of ceramide synthesis enzymes and mitochondrial fission proteins and increased ceramide content in cultured myotubes and in mouse tissue. Mitochondrial …

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Cheatgrass Die-Off Phenomena: What Are The Short And Long Term Recovery Factors Of Bromus Tectorum Stand Failure?, Joshua Alan Nicholson Dec 2014

Cheatgrass Die-Off Phenomena: What Are The Short And Long Term Recovery Factors Of Bromus Tectorum Stand Failure?, Joshua Alan Nicholson

Theses and Dissertations

Observations of Bromus tectorum L. (cheatgrass or downy brome) monocultures have shown that populations are susceptible to stand die-off or replacement failures. Die-offs, where the seed bank from the previous year fails to emerge, occurs in cheatgrass stands and it is unclear the trigger or cause. The fungus Fusarium has been identified in plant and seed samples from die-offs and may drive die-off activity through pathogenicity. Die-off recovery may take several years but cheatgrass populations eventually reestablish. The purpose of our study was to determine whether Fusarium is a potential player in a die-off, and understand how die-offs recover after …

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Conscience And Context In Eastman Johnson's The Lord Is My Shepherd, Amanda Melanie Slater Dec 2014

Conscience And Context In Eastman Johnson's The Lord Is My Shepherd, Amanda Melanie Slater

Theses and Dissertations

This thesis considers the experiences that motivated the creation of an 1863 painting by American artist Eastman Johnson entitled The Lord is My Shepherd. An examination of the painting—which depicts a black man reading a Bible—reveals multiple artistic, social, political, and spiritual influences. Created in the midst of the American Civil War, the painting's inspiration derived from Johnson's New England childhood, training in Europe, encounters with the Transcendentalist movement, and his abolitionist views. As a result, The Lord is My Shepherd is a culminating work in Johnson's oeuvre that was prompted by years of experience and observations in an age …

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Determining The Reliability Of An Early Expository Comprehension Assessment, Tammie Harding Dec 2014

Determining The Reliability Of An Early Expository Comprehension Assessment, Tammie Harding

Theses and Dissertations

This study investigated the reliability of the revised Early Expository Comprehension Assessment (EECA), a measure that looked at preschoolers' comprehension of expository text. Thirty-seven preschool children between the ages of four and five were administered two comparable versions of the measure by two examiners. Scoring procedures were created and the protocols were scored and compared for reliability. The data was analyzed using a mixed models Analysis of Variance for repeated measures and a maximum likelihood estimate of variance components. Results from the analysis showed that version and order had no significant effect on three of the response task scores (Purpose …

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