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2016

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Variation In Organismic Rna And Dna Content: Analysis And Application To The Assessment Of Living Planktonic Biomass, Elizabeth Lam Gagneron Dec 2016

Variation In Organismic Rna And Dna Content: Analysis And Application To The Assessment Of Living Planktonic Biomass, Elizabeth Lam Gagneron

Master's Theses

Modern analysis of DNA and RNA nucleic acid sequences has yielded profound changes in our understanding of the genetic biodiversity of planktonic organisms within the microbial food web of aquatic ecosystems. However, the bulk environmental concentrations of DNA and RNA, and their relative ratios, also potentially provide important information on the biomass and metabolic activity of planktonic organisms. Currently, there is a need to quantify the relative living biomass levels of natural water contained in ships’ ballast tanks to regulate the spread of aquatic invasive species (AIS) resulting from ballast water discharge practices within the international shipping industry. Ultraviolet (UV) …

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Slis Connecting Volume 5, Issue 2, Stacy Creel, Teresa S. Welsh Ph.D., Mlis Dec 2016

Slis Connecting Volume 5, Issue 2, Stacy Creel, Teresa S. Welsh Ph.D., Mlis

SLIS Connecting

SLIS Connecting Volume 5, Issue 2 (Fall/Winter 2016)

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Core Values: Intellectual Freedom And Privacy In Public Libraries, Stephanie A. Evans Dec 2016

Core Values: Intellectual Freedom And Privacy In Public Libraries, Stephanie A. Evans

SLIS Connecting

With the passing of the USA Patriot Act in 2001 following the events of 9/11, libraries on the national scale have had to staunchly defend issues of privacy and confidentially more-so than ever before. Evidence of this lies not only in statements within the ALA’s Resolution on the USA PATRIOT Act and Libraries but also in other core documents which guide policy development in public libraries (ALA 2005). Intellectual Freedom and privacy are two of the major issues addressed and protected by the American Library Association through the Office of Intellectual Freedom and the Library Bill of Rights (ALA 1996).

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Population Density, Habitat Dynamic And Aerial Survival Of Relict Cave Bivalves From Genus Congeria In The Dinaric Karst, Olga Jovanović Glavaš, Branko Jalžić, Helena Bilandžija Dec 2016

Population Density, Habitat Dynamic And Aerial Survival Of Relict Cave Bivalves From Genus Congeria In The Dinaric Karst, Olga Jovanović Glavaš, Branko Jalžić, Helena Bilandžija

International Journal of Speleology

Caves are some of the least-known ecosystems on Earth and long-term ecological studies and population size estimates are very rare. Genus Congeria is a Tertiary relict that comprises three species from Dinaric karst area; C. kusceri, C. jalzici and C. mulaomerovici, each with very limited distribution. They are the only known cave bivalves and in contrast to many other cave species, they form populations with high densities. We estimated that the population of C. kusceri in Jama u Predolcu is between 72,454 and 72,906 individuals. The highest density occurred between one and three meters depth, and reached maximum …

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Home To School Transitions: A Guatemalan Family Portrait, Lisa Crayton Dec 2016

Home To School Transitions: A Guatemalan Family Portrait, Lisa Crayton

TAPESTRY

This study applies a sociocultural perspective to examine the home to school transitions in literacy achievement of three low-income children from Guatemala. Through participant observation and informal conversations with the family during home visits, two factors appeared to influence the literacy development of the family's young children: bilingualism and cultural assimilation. Investigating the home literacy environment of an immigrant family provides an insider's perspective of the life experiences of children from non-mainstream homes. Understanding their home reading and writing experiences, and their transition to school literacy, is valuable for reading teachers facing increasingly diverse students from multicultural backgrounds.

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A New Species Of Euscorpius Thorell, 1876 From Peloponnese, Greece (Scorpiones: Euscorpiidae, Gioele Tropea, Victor Fet, Aristeidis Parmakelis, Panayiota Kotsakiozi, Iasmi Stathi Dec 2016

A New Species Of Euscorpius Thorell, 1876 From Peloponnese, Greece (Scorpiones: Euscorpiidae, Gioele Tropea, Victor Fet, Aristeidis Parmakelis, Panayiota Kotsakiozi, Iasmi Stathi

Victor Fet

A new scorpion species, Euscorpius (Euscorpius) erymanthius sp. n., is described from Peloponnese, Greece (Erymanthos Mts.), based on genetic and morphological evidence. It is characterized by small size, light brown to reddish color, and a standard trichobothrial pattern (Pv = 8–9, et = 7–6, em = 4 and eb = 4). In a phylogeny based on multiple DNA markers, the new species groups close with E. corcyraeus Tropea et Rossi, 2012 from Corfu (Kerkyra) Island.

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Integrating Habitat Suitability Modeling And Radio Telemetry To Describe Habitat Use Of The Western Massasaugas, Sistrurus T. Tergeminus, In Texas, Mitchell R. Barazowski Dec 2016

Integrating Habitat Suitability Modeling And Radio Telemetry To Describe Habitat Use Of The Western Massasaugas, Sistrurus T. Tergeminus, In Texas, Mitchell R. Barazowski

Biology Theses

Habitat suitability modeling using the software package MaxEnt (Phillips, Anderson, & Schapire, 2006) is a popular method for describing the habitat of rare species. MaxEnt uses “presence only” data to develop models; however presence data are highly skewed towards areas of high detection probability and these areas may not represent the full range of habitat use. Thusly, predictions from models developed using only data from areas with high detection probability may not represent all suitable habitat. This study tested the ability of MaxEnt models developed using three different data sets to accurately describe Western Massasauga (Sistrurus t. tergeminus) habitat at …

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Phylogenetics, Biogeography, And Climate Niche Variation Of South Pacific And Hawaiian Psychotria, Elaine Zhang Dec 2016

Phylogenetics, Biogeography, And Climate Niche Variation Of South Pacific And Hawaiian Psychotria, Elaine Zhang

Master's Theses

Why do some species have broad geographic distributions, while other species are confined to a narrow distribution? Species age, ecological niche, or dispersal traits may help explain why some insular species are abundant and found on many islands, while others are rare and restricted to one island. In this study, I inferred a robust, time-calibrated phylogeny of the Hawaiian Psychotria, using two nuclear and eight chloroplast loci, sampling 67 individuals. I coupled my phylogenetic hypothesis with climatic data, ecological niche modeling, and morphological dispersal characteristics to explain the variation in number of islands occupied by each species. My inferred phylogeny …

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Doula Support As A Means To Improve Birth Outcomes For Minority Women, Christina Bao Ngoc Thich Dec 2016

Doula Support As A Means To Improve Birth Outcomes For Minority Women, Christina Bao Ngoc Thich

Master's Projects and Capstones

Ethnic minorities such as African Americans, American Indians, Hispanics, Laotions, Hmongs, and Alaskan Natives have higher rates of cesarean delivery, pre-term birth, fetal demise, perinatal laceration, and congenital abnormalities than their white counterparts. Continuous labor support by way of doula care has been recommended for all pregnant women as a means to prevent adverse birth outcomes. Despite this, the population most in need of such support in unable to access doula services due to low socioeconomic status, availability of services, and cultural inaccessibility. This paper focuses on my capstone experience with UCSF and Roots of Labor Birth Collective as we …

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Territoriality And Spatial Structure In The Green Anole, Anolis Carolinensis, William D. Weber Jr. Dec 2016

Territoriality And Spatial Structure In The Green Anole, Anolis Carolinensis, William D. Weber Jr.

University of New Orleans Theses and Dissertations

Anolis carolinensis has been a model organism for ecology and evolutionary biology since the seventies, yet there are still understudied aspects of their ecology. A five-year study has provided microsatellite genotypes to be used in building a pedigree and assess relatedness, enabling us to evaluate the spatial distribution of an urban population of A. carolinensis. Results indicate no correlation between a male’s size and the distance others keep from it; however, males belonging in the heavyweight morph are dictating the spatial distribution in this population. In addition, juvenile dispersal of male offspring and partial philopatry of female offspring are …

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Chemical And Non-Chemical Control Of Potato Pink Rot, Xuemei (Missi) Zhang Dec 2016

Chemical And Non-Chemical Control Of Potato Pink Rot, Xuemei (Missi) Zhang

Electronic Theses and Dissertations

Pink rot of potato (Solanum tuberosum) is a widespread soilborne disease that causes significant losses in the field and storage. It is caused by Phytophthora erythroseptica (Pethybr.), an oomycete pathogen that produces sexual spores that can survive in soil for years. The management of pink rot mainly relies on chemical control. However, the most effective chemical in pink rot control, mefenoxam, is losing its efficacy owing to the development of mefenoxam resistance in P. erythroseptica. To evaluate alternative fungicides (including chemical and biological fungicides) to mefenoxam in pink rot control, two greenhouse experiments and three field trials …

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Population And Trophic Dynamics Of Striped Bass And Blueback Herring In The Connecticut River, Justin P. Davis Dec 2016

Population And Trophic Dynamics Of Striped Bass And Blueback Herring In The Connecticut River, Justin P. Davis

Doctoral Dissertations

Case studies of the ramifications of predator management for prey population dynamics can play a valuable role in developing ecosystem fisheries management. My dissertation focuses on the predator-prey interaction between Striped Bass (Morone saxatilis), an abundant predatory finfish, and an imperiled prey population of anadromous Blueback Herring (Alosa aestivalis). Annual returns of Blueback Herring to the Holyoke Dam on the Connecticut River in southern New England collapsed during the 1980-2000s, coincident with Striped Bass recovery. I studied the abundance and demography of both species in the Connecticut River during 2005-08, measured predation levels, and surveyed the …

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Everyday Ecologies In The Writings Of Georgia Authors Tina Mcelroy Ansa, Melissa Fay Greene, Mary Hood, And Janisse Ray, Rachel G. Wall Dec 2016

Everyday Ecologies In The Writings Of Georgia Authors Tina Mcelroy Ansa, Melissa Fay Greene, Mary Hood, And Janisse Ray, Rachel G. Wall

English Dissertations

Four Georgia women authors focus on different but equally important components of life: the natural environment of Janisse Ray, relationships in Mary Hood, culture in Tina McElroy Ansa, and sociological history in Melissa Fay Greene. While the focus of the writings by these authors overlap, their various approaches examined together reveal the essential areas where contemporary society has lost its way. All four argue how not to live by pointing out examples of negative actions and the consequences of human carelessness. Through compelling stories, these four authors show us how to preserve and improve our environment, our relationships, our culture, …

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2016 Fall Florida International University Commencement, Florida International University Dec 2016

2016 Fall Florida International University Commencement, Florida International University

FIU Commencement Programs

Program for the 2016 Fall Florida International University Commencement.

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Spatial And Trophic Niche Specialization In Castor Canadensis, Robert Antonio Francis Dec 2016

Spatial And Trophic Niche Specialization In Castor Canadensis, Robert Antonio Francis

Theses and Dissertations

The Hutchinsonian niche is the n dimensional hyper volume that allows for the persistence of a species. Castor canadensis, a large semi-aquatic rodent, is an ecosystem engineer and often a keystone species for many ecosystems. I examined the effect of multiple spatial scales on hierarchical habitat selection byC. canadensis using presence-only modeling techniques. I also determined individual trophic niche specialization in C. canadensis utilizing stable isotope analysis. I concluded that C. canadensis displayed scale independent habitat selection when comparing landscape and fine spatial scales. Individual trophic niche specialization occurred in colonies of the same resource availability. Also, individual trophic niches …

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Natural Population Dynamics Of Rock Iguanas In The Bahama Archipelago, Giuliano Colosimo Dec 2016

Natural Population Dynamics Of Rock Iguanas In The Bahama Archipelago, Giuliano Colosimo

Theses and Dissertations

Understanding whether groups of individuals represent a single panmictic gene pool, or multiple genetically structured populations across a species range should aid in predicting whether specific conservation strategies would be more or less effective for species preservation. Further, contrasting the population structures of multiple coexisting taxa could foster an even deeper understanding of evolutionary divergence among demes and potentially even suggest local adaptation in the form of tight coevolutionary relationships. Finally, the analysis of population dynamics within small and isolated populations could improve our understanding of the relative importance that different evolutionary mechanisms have in predicting population persistence in the …

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The Impacts Of Climate Change On Communities Of Fungi In Boreal Peatlands, Asma Asemaninejad Hassankiadeh Dec 2016

The Impacts Of Climate Change On Communities Of Fungi In Boreal Peatlands, Asma Asemaninejad Hassankiadeh

Electronic Thesis and Dissertation Repository

Peatlands have an important role in global climate change through sequestration of atmospheric CO2. Climate change is already affecting these ecosystems, including both above- and below- ground communities and their functions. Fungi play a central role in these communities. As a result, there is concern that altered fungal community function may turn peatlands from carbon sinks to carbon sources, greatly exacerbating the impacts of climate change. In order to gain a better insight into effects of climate change on the structure and function of these carbon sequestrating ecosystems, this thesis focuses on diversity and structure of fungal communities …

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The Microbiome Of The Eastern Oyster, Crassostrea Virginica (Gmelin, 1791): Temporal And Spatial Variation, Environmental Influences, And Its Impact On Host Physiology, Melissa L. Pierce Dec 2016

The Microbiome Of The Eastern Oyster, Crassostrea Virginica (Gmelin, 1791): Temporal And Spatial Variation, Environmental Influences, And Its Impact On Host Physiology, Melissa L. Pierce

Doctoral Dissertations

Prokaryotic communities are ubiquitous in every environment on earth. In the oceans they are integral to a number of biogeochemical processes and form the base of marine food webs. Microbes have also coevolved with eukaryotes, aiding in a variety of host functions including digestion and nutrient absorption, development of the immune system, and protection against pathogens. The disruption of these microbial communities, especially in the gut, has been linked to altered health statuses and physiological functions in a range of hosts. The eastern oyster, Crassostrea virginica (Gmelin, 1791), is a valuable economic and ecological resource in near-shore environments. As a …

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Assessing The Functional Similarity Of Native And Invasive Anolis Lizards In The Food Webs Of Structurally-Simple Habitats In Florida, Nathan W. Turnbough Dec 2016

Assessing The Functional Similarity Of Native And Invasive Anolis Lizards In The Food Webs Of Structurally-Simple Habitats In Florida, Nathan W. Turnbough

Doctoral Dissertations

Invasive species often displace ecologically-similar native species, but the extent to which invading and displaced species function similarly in the food web processes of invaded communities is largely unknown. I investigated whether populations and individuals of an invasive Anolis lizard (the brown anole, Anolis sagrei) and the native congener it displaces in Florida (the green anole, Anolis carolinensis) are functionally equivalent in the food webs of open and structurally-simple habitats. In a system of invaded and uninvaded dredge-spoils islands, I found that both arthropod communities and winter bird communities covaried with brown anole abundance (and therefore the identity …

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Standardization And Quality Control In Data Collection And Assessment Of Threatened Plant Species, Lloyd W. Morrison, Craig C. Young Dec 2016

Standardization And Quality Control In Data Collection And Assessment Of Threatened Plant Species, Lloyd W. Morrison, Craig C. Young

College of Natural and Applied Sciences

Informative data collection is important in the identification and conservation of rare plant species. Data sets generated by many small-scale studies may be integrated into large, distributed databases, and statistical tools are being developed to extract meaningful information from such databases. A diversity of field methodologies may be employed across smaller studies, however, resulting in a lack of standardization and quality control, which makes integration more difficult. Here, we present a case study of the population-level monitoring of two threatened plant species with contrasting life history traits that require different field sampling methodologies: the limestone glade bladderpod, Physaria filiformis, and …

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Where And How Wolves (Canis Lupus) Kill Beavers (Castor Canadensis), Thomas Gable, Steve K. Windels, John G. Bruggink, Austin T. Homkes Dec 2016

Where And How Wolves (Canis Lupus) Kill Beavers (Castor Canadensis), Thomas Gable, Steve K. Windels, John G. Bruggink, Austin T. Homkes

Journal Articles

Beavers (Castor canadensis) can be a significant prey item for wolves (Canis lupus) in boreal ecosystems due to their abundance and vulnerability on land. How wolves hunt beavers in these systems is largely unknown, however, because observing predation is challenging. We inferred how wolves hunt beavers by identifying kill sites using clusters of locations from GPS-collared wolves in Voyageurs National Park, Minnesota. We identified 22 sites where wolves from 4 different packs killed beavers. We classified these kill sites into 8 categories based on the beaver-habitat type near which each kill occurred. Seasonal variation existed in …

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Isolation And Characterization Of Acidobacterium Ailaaui Sp. Nov., A Novel Member Of Acidobacteria Subdivision 1, From A Geothermally Heated Hawaiian Microbial Mat, Marisa R. Myers, G. M. King Dec 2016

Isolation And Characterization Of Acidobacterium Ailaaui Sp. Nov., A Novel Member Of Acidobacteria Subdivision 1, From A Geothermally Heated Hawaiian Microbial Mat, Marisa R. Myers, G. M. King

Faculty Publications

© 2016 IUMS. A novel member of Acidobacteria was isolated from a microbial mat growing on a geothermally heated dead tree trunk in Hawai'i Volcanoes National Park (HI, USA). The rod-shaped, Gramnegative capsulated cells of strain PMMR2T were non-motile and catalase and oxidase negative. Growth occurred aerobically from 15 to 55 °C (optimum, 40 °C) and at pH values from 4.5 to 7.0 (optimum, 6.5). A limited range of sugars and organic acids supported growth. However, results of a genomic analysis suggested that various polysaccharides might be hydrolysed as carbon sources, and evidence for pectin degradation was observed in liquid …

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Development Of A Measure Of Model Fidelity For Mental Health Crisis Resolution Teams, Brynmor Lloyd-Evans, Gary R. Bond, Torleif Ruud, Ada Ivanecka Dec 2016

Development Of A Measure Of Model Fidelity For Mental Health Crisis Resolution Teams, Brynmor Lloyd-Evans, Gary R. Bond, Torleif Ruud, Ada Ivanecka

Dartmouth Scholarship

Crisis Resolution Teams (CRTs) provide short-term intensive home treatment to people experiencing mental health crisis. Trial evidence suggests CRTs can be effective at reducing hospital admissions and increasing satisfaction with acute care. When scaled up to national level however, CRT implementation and outcomes have been variable. We aimed to develop and test a fidelity scale to assess adherence to a model of best practice for CRTs, based on best available evidence.

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Contribution Of Lianas To Plant Area Index And Canopy Structure In A Panamanian Forest, M. Elizabeth Rodríguez-Ronderos, Gil Bohrer, Arturo Sanchez-Azofeifa, Jennifer S. Powers, Stefan A. Schnitzer Dec 2016

Contribution Of Lianas To Plant Area Index And Canopy Structure In A Panamanian Forest, M. Elizabeth Rodríguez-Ronderos, Gil Bohrer, Arturo Sanchez-Azofeifa, Jennifer S. Powers, Stefan A. Schnitzer

Biological Sciences Faculty Research and Publications

Lianas are an important component of tropical forests, where they reduce tree growth, fecundity, and survival. Competition for light from lianas may be intense; however, the amount of light that lianas intercept is poorly understood. We used a large-scale liana-removal experiment to quantify light interception by lianas in a Panamanian secondary forest. We measured the change in plant area index (PAI) and forest structure before and after cutting lianas (for 4 yr) in eight 80 m × 80 m plots and eight control plots (16 plots total). We used ground-based LiDAR to measure the 3-dimensional canopy structure before cutting lianas, …

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Simple Soil Quality Tests And Organic Management Practices For Orchards In The Intermountain West, Esther Oline Thomsen Dec 2016

Simple Soil Quality Tests And Organic Management Practices For Orchards In The Intermountain West, Esther Oline Thomsen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Soil health is often overlooked as a long-term management strategy as growers face an increasing number of short-term management challenges in the Intermountain West. The costs of inputs are rising and water resources are becoming more limited. Soil with poor health typically requires more amendments and fertlizers to meet crop needs. Soil health tests can help reveal management practices that reduce soil health, as well as those that improve soil health. Practices known to improve soil health are reduced to no tillage, cover crop use- especially legumes, and addition of mulch and other organic materials. Soil health testing is not …

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Effect Of Fragmentation And Habitat Type On Coastal Nekton In Mississippi, Thomas Bennett Sevick Dec 2016

Effect Of Fragmentation And Habitat Type On Coastal Nekton In Mississippi, Thomas Bennett Sevick

Master's Theses

Coastal wetlands are extremely productive ecosystems that support an abundance of organisms at higher tropic levels. Coastal wetlands also act as important buffers from storms and help protect major cornerstones of coastal economies, such as tourism and fisheries. Despite the clear need for the protection of these habitats, anthropogenic use of coastal wetlands has increased in frequency and intensity, resulting in the fragmentation of once continuous habitats. A central challenge to assessing the impact of marsh fragmentation is the lack of quantitative distribution and abundance data from specific habitat types. This is especially true for species that are not commercially …

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Temporal Foraging Patterns Of Nonnative Frogs (Eleutherodactylus Coqui) In Hawaii, Arthur C. Wallis, Robyn L. Smith, Karen H. Beard Dec 2016

Temporal Foraging Patterns Of Nonnative Frogs (Eleutherodactylus Coqui) In Hawaii, Arthur C. Wallis, Robyn L. Smith, Karen H. Beard

Wildland Resources Faculty Publications

The Puerto Rican Coqui Frog (Eleutherodactylus coqui) is a nocturnal, invasive species that was introduced into Hawaii in the 1980s. Because they reach extremely high densities (up to 90,000 frogs/ha), they have the potential to affect invertebrate prey communities. Previously, researchers used frogs collected only at night to characterize their prey. Because Coquis use retreat sites near the forest floor during the day and understory perch sites at night, frogs collected at night might show different amounts and types of prey than would frogs collected in the morning. We analyzed stomach contents of 435 frogs collected in the morning (0300–0600 …

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Possible Past Hybridization Among Desmognathus Ochrophaeus In Canadice Lake: An Ecological Survey Exploring Desmognathine Salamanders And The Competitive Exclusion Hypothesis In The Western Finger Lakes Of New York State, Aisha L. Gadson Dec 2016

Possible Past Hybridization Among Desmognathus Ochrophaeus In Canadice Lake: An Ecological Survey Exploring Desmognathine Salamanders And The Competitive Exclusion Hypothesis In The Western Finger Lakes Of New York State, Aisha L. Gadson

Theses

Dusky Salamanders are a varied group of sister taxa found in Northeastern North America. Two species, Desmognathus fuscus and Desmognathus ochrophaeus, have geographically overlapping ranges. In addition, they are very morphologically similar, share many niche requirements, and are found in extremely similar or even the same salamander communities. These shared traits have been posited to arise from the influence of niche conservatism during their species’ evolutions. Also, despite their physical similarities they are historically found not to hybridize on a large scale, nor have ever had a full population merge recorded. Therefore, it appears that the community ecology of these …

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The Biodiversity Of Gastrointestinal Nematodes In South African Wildlife, Chalis J. Bird Dec 2016

The Biodiversity Of Gastrointestinal Nematodes In South African Wildlife, Chalis J. Bird

Theses, Dissertations, and Projects

In this study, I investigated the diversity of parasites found in cheetah and wild ungulates in South Africa in collaboration with the Samara Private Game Reserve in Graaff Reinet, South Africa. Scat samples were collected over a period of two months, from September November, 2014, and DNA was extracted on the preserve for gastrointestinal nematode analysis. Wildlife was tracked using radio telemetry, tracks, and sign, while habitat and host distribution were documented. The aim was to determine the community composition of gastrointestinal nematodes in the wildlife hosts through molecular identification and to examine the role of host habitat preference, geographical …

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The Spatial Ecology Of The Eastern Box Turtle (Terrapene Carolina Carolina) In A Fragmented Landscape In Southeast Tennessee, Hamilton County, Mark Dillard Dec 2016

The Spatial Ecology Of The Eastern Box Turtle (Terrapene Carolina Carolina) In A Fragmented Landscape In Southeast Tennessee, Hamilton County, Mark Dillard

Masters Theses and Doctoral Dissertations

The landscape throughout the range of the Eastern Box turtle (Terrapene carolina carolina) has been altered significantly since the late 1880s by habitat fragmentation. In this study, the spatial ecology and seasonal movement patterns of the Eastern Box turtle in contrasting habitat types are investigated. Eastern Box turtles had home ranges that averaged (mean = 3.77 ± 2.82 ha, minimum convex polygon) in size among individuals. There was no significant difference between mean annual home range size and movement patterns between males and females; however, home range size for male turtles was larger during the summer versus spring activity season …

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