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Articles 91 - 120 of 345
Full-Text Articles in Entire DC Network
Review Of The Cosmic Common Good: Religious Grounds For Ecological Ethics By Daniel P. Scheid, Jame Schaefer
Review Of The Cosmic Common Good: Religious Grounds For Ecological Ethics By Daniel P. Scheid, Jame Schaefer
Theology Faculty Research and Publications
No abstract provided.
Developing A Coastal Gis Model Of Sri Lanka To Pinpoint Areas At Risk Of Tsunamis, John E. Dellysse, Buddhika D. Madurapperuma
Developing A Coastal Gis Model Of Sri Lanka To Pinpoint Areas At Risk Of Tsunamis, John E. Dellysse, Buddhika D. Madurapperuma
IdeaFest: Interdisciplinary Journal of Creative Works and Research from Cal Poly Humboldt
No abstract provided.
Designing Machines With Autonomy: From Independence To Interdependence To Solidarity, Yuxi Liu, Larissa Pschetz
Designing Machines With Autonomy: From Independence To Interdependence To Solidarity, Yuxi Liu, Larissa Pschetz
DRS Biennial Conference Series
Current notions of design are strongly influenced by user- and human-centred approaches. However, with technologies that present increasing computing power and context-awareness, and algorithms that ‘design themselves’, designers are beginning to face issues that go beyond the needs of users. In this paper, we argue that the focus on humans not only neglects the increasing potential of machines, but also other forms of life, limiting design’s possibilities. We attempt to investigate the design of machines with autonomy, beyond human-centred and anthropocentric views, and present an alternative approach, in which machines do not serve or command humans, but exist and evolve …
Co-Colonizing: The Ecological Impacts Of Settler Colonialism In The American Supercontinent, Nicolas Cruz
Co-Colonizing: The Ecological Impacts Of Settler Colonialism In The American Supercontinent, Nicolas Cruz
Undergraduate Project Award
Nicolás’s project began with realizing that Ecology and Indigenous/Settler Colonial Studies used the same language but not the same frameworks to discuss concepts of invasion ecology and human colonization. His project aimed to synthesize his majors in Biology and Sociology and to cross-pollinate their methodologies and frameworks. His persistent and varied research, deep engagement with sources, and consultation with faculty and peers resulted in thoughtful and original research. Mark Jordan, the faculty overseeing this Senior Synthesis project wrote, “He took on a challenging topic that merged his two majors (biology and sociology) into an interdisciplinary work of his own creation …
Seed Bank And Seasonal Patterns Of The Eukaryotic Sar (Stramenopila, Alveolata And Rhizaria) Clade In A New England Vernal Pool, Chip Sisson, Bethaney Gulla-Devaney, Laura A. Katz, Jean-David Grattepanche
Seed Bank And Seasonal Patterns Of The Eukaryotic Sar (Stramenopila, Alveolata And Rhizaria) Clade In A New England Vernal Pool, Chip Sisson, Bethaney Gulla-Devaney, Laura A. Katz, Jean-David Grattepanche
Biological Sciences: Faculty Publications
Vernal pools are dynamic freshwater ecosystems that dry during the summer. These unique habitats are vital to a number of well-studied animal species but there is little documentation of the diversity of the SAR—Stramenopila, Alveolata and Rhizaria—clade in vernal pools. Here, we characterize the protist community over a portion of the hydroperiod as the vernal pool transitions from its winter stage through its drying out in late summer. Our study focuses on the SAR clade, which encompasses a broad range of morphological diversity and a variety of trophic modes within the microbial food web. Using high-throughput sequencing, we investigate the …
Estimation Of Zero-Inflated Population Mean: A Bootstrapping Approach, Khyam Paneru, R. Noah Padgett, Hanfeng Chen
Estimation Of Zero-Inflated Population Mean: A Bootstrapping Approach, Khyam Paneru, R. Noah Padgett, Hanfeng Chen
Journal of Modern Applied Statistical Methods
A mixture model was adopted from the maximum pseudo-likelihood approach under complex sampling designs to estimate the mean of zero-inflated population. To overcome the complexity and assumptions of asymptotic distribution, the maximum pseudo-likelihood function was used, but a bootstrapping procedure was proposed as an alternative. Bootstrap confidence intervals consistently capture the true means of zero-inflated populations of the simulation studies.
Lung Cancer Risk And Low (≤50 Μg/L) Drinking Water Arsenic Levels For Us Counties (2009⁻2013)-A Negative Association., Steven H Lamm, Isabella J Boroje, Hamid Ferdosi, Jaeil Ahn
Lung Cancer Risk And Low (≤50 Μg/L) Drinking Water Arsenic Levels For Us Counties (2009⁻2013)-A Negative Association., Steven H Lamm, Isabella J Boroje, Hamid Ferdosi, Jaeil Ahn
Pediatrics Faculty Publications
While epidemiologic studies clearly demonstrate drinking water with high levels of arsenic as a significant risk factor for lung cancer, the evidence at low levels (≤50 μg/L) is uncertain. Therefore, we have conducted an ecological analysis of recent lung cancer incidence for US counties with a groundwater supply of <50 μg/L, the historical limit for both the EPA and WHO. Data sources used included USGS for arsenic exposure, NCI for lung cancer outcome, and CDC and US Census Bureau forcovariates. Poisson log-linear models were conducted for male, female, and total populations using for exposure median county arsenic level, maximum arsenic level ≤50 μg/L, and ≥80% population groundwater dependency. Statistically significant negative associations were found in each of the six models in which the exposure was limited to those who had major exposure (≥80% dependency) to low-levels of arsenic (≤50 μg/L). This is the first large ecological study of lung cancer risk from drinking water arsenic levels that specifically examined the dose-response slope for populations whose exposure was below the historical limit of ≤50 μg/L. The models for each of the three populations (total; male; female) demonstrated an association that is both negative and statistically significant.
Advancing Dendrochronological Studies Of Fire In The United States, Grant L. Harley, Christopher H. Baisan, Peter M. Brown, Donald A. Falk, William T. Flatley, Henri D. Grissino-Mayer, Amy Hessl, Emily K. Heyerdahl, Margot W. Kaye, Charles W. Lafon, Ellis Q. Margolis, R. Stockton Maxwell, Adam T. Naito, William J. Platt, Monica T. Rother, Thomas Saladyga, Rosemary L. Sherriff, Lauren A. Stachowiak, Michael C. Stambaugh, Elaine Kennedy Sutherland, Alan H. Taylor
Advancing Dendrochronological Studies Of Fire In The United States, Grant L. Harley, Christopher H. Baisan, Peter M. Brown, Donald A. Falk, William T. Flatley, Henri D. Grissino-Mayer, Amy Hessl, Emily K. Heyerdahl, Margot W. Kaye, Charles W. Lafon, Ellis Q. Margolis, R. Stockton Maxwell, Adam T. Naito, William J. Platt, Monica T. Rother, Thomas Saladyga, Rosemary L. Sherriff, Lauren A. Stachowiak, Michael C. Stambaugh, Elaine Kennedy Sutherland, Alan H. Taylor
Faculty Publications
© 2018 by the authors. Licensee MDPI, Basel, Switzerland. Dendroecology is the science that dates tree rings to their exact calendar year of formation to study processes that influence forest ecology (e.g., Speer 2010 [1], Amoroso et al., 2017 [2]). Reconstruction of past fire regimes is a core application of dendroecology, linking fire history to population dynamics and climate effects on tree growth and survivorship. Since the early 20th century when dendrochronologists recognized that tree rings retained fire scars (e.g., Figure 1), and hence a record of past fires, they have conducted studies worldwide to reconstruct [2] the historical range …
Prediction Of Insect Pest Distribution As Influenced By Elevation: Combining Field Observations And Temperature-Dependent Development Models For The Coffee Stink Bug, Antestiopsis Thunbergii (Gmelin), Abdelmutalab G.A. Azrag, Christian W.W. Pirk, Abdullahi A. Yusuf, Fabrice Pinard, Saliou Niassy, Gladys Mosomtai, Régis Babin
Prediction Of Insect Pest Distribution As Influenced By Elevation: Combining Field Observations And Temperature-Dependent Development Models For The Coffee Stink Bug, Antestiopsis Thunbergii (Gmelin), Abdelmutalab G.A. Azrag, Christian W.W. Pirk, Abdullahi A. Yusuf, Fabrice Pinard, Saliou Niassy, Gladys Mosomtai, Régis Babin
All Peer-Reviewed Publications
The antestia bug, Antestiopsis thunbergii (Gmelin 1790) is a major pest of Arabica coffee in Africa. The bug prefers coffee at the highest elevations, contrary to other major pests. The objectives of this study were to describe the relationship between A. thunbergii populations and elevation, to elucidate this relationship using our knowledge of the pest thermal biology and to predict the pest distribution under climate warming. Antestiopsis thunbergii population density was assessed in 24 coffee farms located along a transect delimited across an elevation gradient in the range 1000–1700 m asl, on Mt. Kilimanjaro, Tanzania. Density was assessed for three …
Isolating And Identifying Fungal Endophytes From Roots Of Rare Orchid Cypripedium Arietinum In Grand Sable Dunes, Michigan, Kari Farkas-Lasich
Isolating And Identifying Fungal Endophytes From Roots Of Rare Orchid Cypripedium Arietinum In Grand Sable Dunes, Michigan, Kari Farkas-Lasich
All NMU Master's Theses
Recently the population of Cypripedium arietinum in Grand Sable Dunes, Michigan was estimated at more than 3.5 million plants, greater than 90% of the world’s known population. There is little research on this species’ root associated fungal endophytes. This new population estimate allows the ethical, destructive sampling required to shed light on root associated symbionts and further successful preservation and restoration of the species. Samples were collected of current year’s roots from 75 C. arietinum orchids at 75 locations within 4 jack pine forests in the Grand Sable Dunes, Pictured Rocks National Lakeshore, Michigan. Fungal endophyte cultures were obtained from …
Benign Prostatic Hyperplasia: An Evidence-Based Case Report Treated With Homoeopathy, Abhijit Chakma, Ratan Shil, Madhu Ghosh
Benign Prostatic Hyperplasia: An Evidence-Based Case Report Treated With Homoeopathy, Abhijit Chakma, Ratan Shil, Madhu Ghosh
Indian Journal of Research in Homoeopathy
Benign prostatic hyperplasia (BPH) is commonly seen in men above the age of 50 years and its incidence approaches 75-80% in men above 80 years. It is one of the frequent reasons for elderly men undergoing surgery. BPH symptoms range from least voiding difficulties to urinary retention and renal failure. In this case, treated with Causticum, both subjective symptoms and prostate size were assessed post treatment. This case shows the usefulness of this medicine on subjective and pathological parameters.
Book Reviews: Force Of Nature: George Fell, Founder Of The Natural Areas Movement. Arthur Melville Pearson., James R. Herkert
Book Reviews: Force Of Nature: George Fell, Founder Of The Natural Areas Movement. Arthur Melville Pearson., James R. Herkert
The Prairie Naturalist
Arthur Melville Pearson’s Force of Nature is a book that tells two very interesting and intertwined stories. One is a story of how perseverance and determination can drive an individual to accomplish great things. And the other is a story of how the modern day natural areas movement came to be. Fortunately for those interested in conservation and natural areas protection, those two stories were combined in the life of George Fell (1916-1994). In Fell’s home state of Illinois, where his impact is widely known, his name is synonymous with conservation. In other places where his impact is less well …
A Room With A View: Local Knowledge And Tourism Entrepreneurship In An Unlikely Indonesian Locale, Kathleen M. Adams, Dirk Sandarupa
A Room With A View: Local Knowledge And Tourism Entrepreneurship In An Unlikely Indonesian Locale, Kathleen M. Adams, Dirk Sandarupa
Anthropology: Faculty Publications and Other Works
This article highlights the understudied role of local knowledge in contributing to the resilience of small-scale entrepreneurial tourism businesses in touristically-unpredictable times. Drawing on a micro-case study of a South Sulawesi (Indonesia) tourist-oriented restaurant-hotel that has thrived despite tourism’s ebbs and flows of tourism, we suggest that greater attention to the ways in which successful small-scale tourism entrepreneurs draw on local wisdom can help identify additional foundations for building resilience strategies. In spotlighting local knowledge as an under-recognized resource, this article also speaks to recent calls for the decolonization of tourism studies.
Evaluation Of The Genus Thiothrix Winogradsky 1888 (Approved Lists 1980) Emend. Aruga Et Al. 2002: Reclassification Of Thiothrix Disciformis To Thiolinea Disciformis Gen. Nov., Comb. Nov., And Of Thiothrix Flexilis To Thiofilum Flexile Gen. Nov., Comb Nov., With Emended Description Of Thiothrix., Rich Boden, Kathleen M. Scott
School of Biological and Marine Sciences
Thiothrix is the type genus of the Thiotrichaceae in the Thiotrichales of the 21 Gammaproteobacteria, comprising nine species of sulfur-oxidising filamentous Bacteria, 22 which are variously autotrophic, heterotrophic or have mixed metabolic modes. Within the 23 genus, 4 species show 16S rRNA gene identities lower the Yarza threshold for the rank of 24 genus (94.5 %) – Thiothrix disciformis, Thiothrix flexilis, Thiothrix defluvii and Thiothrix 25 eikelboomii – as they show no affiliation to extant genera, a polyphasic study was undertaken 26 including biochemical, physiological and genomic properties and phylogeny based on the 27 16S rRNA gene (rrs), recombination protein …
Recycled Substrates: Plant Biomass And Plant Cover Correlation, Richard K. Sutton
Recycled Substrates: Plant Biomass And Plant Cover Correlation, Richard K. Sutton
Landscape Architecture Program: Faculty Scholarly and Creative Activity
Green roofs extend roof membrane life and reduce waste to landfills. However, green roof costs must be reduced if their benefits are to accrue more widely. Use of recycled materials may reduce costs and also keep those materials out of landfills. Some work has been done on use of local recycled materials for green roof substrates, but none describe the characteristics, proportions and results of using an entire suite of blended recycled materials in admixtures (i.e., mixtures of very different materials) such as crumb rubber (CR), crushed used brick (CB) and compost (CPT) in concert with greens grade sand (#10), …
The Temporal And Spatial Dynamics Of Larval Supply, Settlement, And Adult Populations Of Chthamalus Fissus Within The La Jolla, California Rocky Intertidal, Catharine Hargenrader
The Temporal And Spatial Dynamics Of Larval Supply, Settlement, And Adult Populations Of Chthamalus Fissus Within The La Jolla, California Rocky Intertidal, Catharine Hargenrader
Theses
The role of post-settlement processes in benthic invertebrate recruitment dynamics has been well established; however, more recently, studies have been resolving the pre-settlement processes and environmental variables that may shape initial settlement. We examined the major space occupying barnacle Chthamalus fissus to determine the spatial and temporal dynamics of settlement in relation to larval supply, adult populations, and habitat characteristics (including elevation as a proxy for immersion, proximity to water’s edge, and the availability of free space) within the La Jolla, CA rocky intertidal. With respect to habitat characteristics, we investigated the influence of available free space on the dynamics …
Micropaleontological Record Of A Preserved, Late Pleistocene Bald Cypress Forest On The Northern Gulf Of Mexico Inner Shelf, Jonathan Thien Truong
Micropaleontological Record Of A Preserved, Late Pleistocene Bald Cypress Forest On The Northern Gulf Of Mexico Inner Shelf, Jonathan Thien Truong
LSU Master's Theses
A cluster of previously buried Taxodium distichum stumps are exposed and preserved in growth position at the bottom of a trough on the inner Gulf of Mexico (GOM) continental shelf in 18 m water depth and 13 km offshore Orange Beach, AL. Radiocarbon ages from wood and optically stimulated luminescence (OSL) dating of sediments suggest a Marine Isotope Stage (MIS) 3 age, or older. This study builds on the previous work of Gonzalez (2018) and Obeclz (2017). Five biofacies were identified in vibracore collected in 2015 and 2016: 1) the Holocene Mississippi-Alabama-Florida (MAFLA) sand sheet, 2) a Holocene interbedded sand …
Fungal Endophytes In A Seed-Free Host: New Species That Demonstrate Unique Community Dynamics, Brett Steven Younginger
Fungal Endophytes In A Seed-Free Host: New Species That Demonstrate Unique Community Dynamics, Brett Steven Younginger
Dissertations and Theses
Fungal endophytes are highly diverse, cryptic plant endosymbionts that form asymptomatic infections within host tissue. They represent a large fraction of the millions of undescribed fungal taxa on our planet with some demonstrating mutualistic benefits to their hosts including herbivore and pathogen defense and abiotic stress tolerance. Other endophytes are latent saprotrophs or pathogens, awaiting host plant senescence to begin alternative stages of their life cycles. Most, however, are likely plant commensals with no observable benefits to their hosts while under study. Yet, when considering the context-dependence that may determine plant resistance to pathogen attack, the consortium of endophytes present …
On The Relationship Between Phylogenetic Diversity And Trait Diversity, Caroline M. Tucker, T. Jonathan Davies, Marc W. Cadotte, William D. Pearse
On The Relationship Between Phylogenetic Diversity And Trait Diversity, Caroline M. Tucker, T. Jonathan Davies, Marc W. Cadotte, William D. Pearse
Biology Faculty Publications
Niche differences are key to understanding the distribution and structure of biodiversity. To examine niche differences, we must first characterize how species occupy niche space, and two approaches are commonly used in the ecological literature. The first uses species traits to estimate multivariate trait space (so‐called functional trait diversity, FD); the second quantifies the amount of time or evolutionary history captured by a group of species (phylogenetic diversity, PD). It is often—but controversially—assumed that these putative measures of niche space are at a minimum correlated and perhaps redundant, since more evolutionary time allows for greater accumulation of trait changes. This …
Avifauna Ethological Response To Unmanned Aircraft Systems, Elden Holldorf
Avifauna Ethological Response To Unmanned Aircraft Systems, Elden Holldorf
Master's Projects and Capstones
This study investigated the ethological response of avifauna to the operation of unmanned aircraft systems (UAS). Proliferation of consumer, commercial, and military applications of UAS have provided environmental managers a new tool to use in their discipline. However, it has also promoted the need for critical examination of the effects UAS may have on existing natural resource practices, such as the management of avifauna populations. While this technology has largely been regarded as a beneficial new tool for efforts like wildlife population monitoring, it is not without potential effects to target species. This is particularly relevant to birds which share …
Do Wintering Conditions Drive Population Trends In Semipalmated Sandpipers (Calidris Pusilla)? Evidence From A Corticosterone Biomarker, Megan L. Boldenow
Do Wintering Conditions Drive Population Trends In Semipalmated Sandpipers (Calidris Pusilla)? Evidence From A Corticosterone Biomarker, Megan L. Boldenow
Biological Sciences
Some of the most extreme long-distance migrants, Arctic-breeding shorebirds are disproportionately represented in tallies of declining species worldwide. For many shorebirds, including the semipalmated sandpiper (Calidris pusilla), the specific causes and mechanisms behind population declines have not been identified. Stressful conditions affecting birds during wintering are often implicated. Interactions between events and processes occurring in the disparate locations used throughout the annual cycle also may be critical in shaping both individual life histories and population demographics. The main objectives of my graduate research were: a) to examine whether semipalmated sandpipers wintering in specific locations incur differential levels of stress; and …
Nutrition Transition Of Hadza Foragers: Implications For Juvenile Behavior, Trevor Pollom
Nutrition Transition Of Hadza Foragers: Implications For Juvenile Behavior, Trevor Pollom
UNLV Theses, Dissertations, Professional Papers, and Capstones
The Hadza foragers of Tanzania are undergoing early stages of nutrition transition and an increased level of market integration. Accompanying these shifts is a significant change in diet composition with greater access to maize, wheat, and other domesticated cultigens, even in the most remote bush camps. Despite the rapid rate of nutrition transition, few studies have attempted to quantify the possible effects this transition is having on Hadza diet or foraging behaviors. Here, we attempt to fill this gap in the literature by reporting results of a mixed methods cross-sectional study on juvenile foragers taken from two time points, 2005 …
The Effect Of Genome Duplication On The Reproductive Ecology Of Plants, Laura Porturas
The Effect Of Genome Duplication On The Reproductive Ecology Of Plants, Laura Porturas
Theses - ALL
Whole genome duplication, or polyploidy, is the largest genomic alteration observed in nature. Polyploidy occurs in many different taxa, but is a widely tolerated and recurrent evolutionary phenomenon in plants. Although the importance of polyploidy in plants has been touted for approximately 100 years, we have yet to fully understand the ecological consequences of whole genome duplication on plant reproductive biology. Here I investigated how whole genome duplication impacts plant reproductive ecology. Specifically, I studied the effects of whole genome duplication on flowering phenotypes and the contributions of whole genome duplication to three premating barriers. I used a combination of …
17Β-Estradiol In Carbondale Treated Wastewater Effluent: A Cross Comparison Study, Evan Mcdermott
17Β-Estradiol In Carbondale Treated Wastewater Effluent: A Cross Comparison Study, Evan Mcdermott
Honors Theses
Natural estrogens are endocrine disrupting compounds and common pollutants in municipal wastewater. The concentration of 17β-estradiol was monitored in effluent from both the southeast and northwest Carbondale wastewater treatment plants (WWTPs) and their receiving waters for nine weeks. The analysis was performed using gas chromatography tandem mass spectrometry (GC/MS/MS) and the internal standard estrone 3-methyl ether. Recoveries were 60.0±3.9%, and significant loss of analyte was found after storage greater than one week. The northwest effluent (NWE) had higher 17β-estradiol levels of 7.1-76.2ng/L than the southeast effluent (SEE) between Below Detection Limits (BDL)-54.0ng/L, which suggests 17β-estradiol was carried with colloidal organic …
Pedestrian Injury Severity Analysis In Motor Vehicle Crashes In Ohio, Majbah Uddin, Fahim Ahmed
Pedestrian Injury Severity Analysis In Motor Vehicle Crashes In Ohio, Majbah Uddin, Fahim Ahmed
Faculty Publications
According to the National Highway Traffic Safety Administration, 116 pedestrians were killed in motor vehicle crashes in Ohio in 2015. However, no study to date has analyzed crashes in Ohio in order to explore the factors contributing to the pedestrian injury severity resulting from motor vehicle crashes. This study fills this gap by investigating the crashes involving pedestrians exclusively in Ohio. This study uses the crash data from the Highway Safety Information System, from 2009 to 2013. The explanatory factors include the pedestrian, driver, vehicle, crash, and roadway characteristics. Both fixed- and random-parameters ordered probit models of injury severity (where …
Toward Understanding Posttraumatic Stress And Depression Among Trauma-Affected Widows In Sri Lanka, Jessica E. Lambert, Alyssa Banford Witting, Spencer James, Lakmal Ponnamperuma, Thulitha Wickrama
Toward Understanding Posttraumatic Stress And Depression Among Trauma-Affected Widows In Sri Lanka, Jessica E. Lambert, Alyssa Banford Witting, Spencer James, Lakmal Ponnamperuma, Thulitha Wickrama
Faculty Publications
Objective: In this study, we applied conservation of resources theory (Hobfoll, 1989) to explain high rates of depression and posttraumatic stress symptoms (PTSS) among war- and disaster-affected Tamil widows in the Eastern Province of Sri Lanka. We hypothesized exposure to potentially traumatic events and severity of current contextual problems would influence PTSS and depressive symptoms directly and indirectly through loss of psychological (view of self), environmental (sense of community), and energy (physical health) resources. Method: Trained research assistants interviewed a convenience sample (N = 381) of women, using established measures of the constructs of interest. Data were analyzed using …
Opioid Use And Opioid Use Disorder Services In Connecticut, Julie Christensen
Opioid Use And Opioid Use Disorder Services In Connecticut, Julie Christensen
Master's Theses
No abstract provided.
Evaluating The Efficacy Of Using Geomorphology As A Surrogate To Benthic Habitat On The Miami Terrace, Kim D. Smith
Evaluating The Efficacy Of Using Geomorphology As A Surrogate To Benthic Habitat On The Miami Terrace, Kim D. Smith
HCNSO Student Theses and Dissertations
The deep-sea is a vast and relatively sparsely characterized domain. As little as 0.01% of deep-sea benthic habitats have been characterized in detail. Characterizing the distribution of organisms and environmental components of the deep-sea is pivotal to the creation and implementation of successful resource management. Benthic habitat maps are a good method to inventory and characterize deep-sea habitats. Recent advances in technology, such as multibeam sonar and remotely operated vehicles (ROVs), have allowed for greater understanding of these ecosystems. As it is difficult and expensive to collect data deep-sea benthic community composition, environmental surrogates of biological data would be economically …
The Effects Of Common Forest Management Practices On Community Structure In A Southern Pine Forest, Donald Paul Chance
The Effects Of Common Forest Management Practices On Community Structure In A Southern Pine Forest, Donald Paul Chance
Theses and Dissertations
Planted pine (Pinus spp.) comprises nearly 10% of the total land cover in the state of Mississippi. Often, understory structure is limited in this system. Thus, managers use a variety of management practices to improve understory biomass and structure. I assessed the impacts of common forest management practices (canopy reduction, prescribed fire, and selective herbicide application) and their combined effects on aspects of community structure. More specifically, I assessed impacts of disturbance intensity on non-native plant invasions, and evaluated how microscale vegetation characteristics influenced use by white-tailed deer (Odocoileus virginianus) and wild turkey (Mealagris gallopavo). Combining canopy reductions with prescribed …
Culture Techniques And Evaluation Of Snail Consumption By Black Buffalo Ictiobus Niger, Emmet Liam Guy
Culture Techniques And Evaluation Of Snail Consumption By Black Buffalo Ictiobus Niger, Emmet Liam Guy
Theses and Dissertations
Black Buffalo Ictiobus niger are a catostomid species native to the Mississippi River Basin with declining populations. Aquaculture is a common component of recovery plans, however little information is published on catostomid culture methods. This study developed culture techniques for Black Buffalo including tank acclimation, induced spawning, larval rearing, and protein requirements. Fish needed a lengthy acclimation (> 2 months) to reduce signs of stress. After, an induced-spawning protocol was described with gonadotropin-releasing hormone analogue. Swim-up fry did not readily consume zooplankton at first feeding but began selecting for cladocerans one week after stocked in a rearing pond. The juvenile …