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Dissertations / Theses on the topic 'Community composition'

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Author: Grafiati

Published: 4 June 2021

Last updated: 14 March 2023

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1

Olden, Julian David. "Predictive models for freshwater fish community composition." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0021/MQ54206.pdf.

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2

Sathe, Melissa P. "Factors Influencing Southeast Florida Coral Reef Community Composition." NSUWorks, 2008. http://nsuworks.nova.edu/occ_stuetd/241.

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This study analyzed data collected during the Broward County beach renourishment project yearly monitoring site visits. Twenty four sample sites throughout the county were established to monitor the coral reef community during beach renourishment efforts sponsored by Broward County and the Florida Department of Environmental Protection. Data collected during each site visit included stony coral cover, density, and colony size. Octocoral and sponge density were also collected. A sediment bottle trap was deployed at each site in order to record the sedimentation rates and grain sizes. These traps were collected and analyzed approximately every 60 days. This project used data collected from the year 2000 until 2004. During this time there were no beach renourishment construction activities therefore sedimentation can be assumed to be natural. The sample sites occur on unique habitat categories. These are: colonized pavement-shallow, ridge-shallow, linear inner, middle, and outer reef. It was previously unclear what was driving the composition of the coral reef communities at these sites. Using available information, this project’s objective is to examine whether or not the southeast Florida coral reef community varies temporally (2000-2004) and spatially (by habitat category). Additionally, this project seeks to examine whether sedimentation rate, grain size and/or depth, have any influence on the coral reef community data obtained at these sites. Changes in the southeast Florida reef system over time (2000-2004) were examined using univariate statistics. Multivariate statistical analyses were used to determine differences by habitat category. The reef communities on the ridge-shallow were statistically different than the reef communities on the linear middle and outer reefs. Sedimentation also varied in this study. The ridge-shallow had the highest sedimentation rates and grain sizes. Some stony coral species exhibited correlations with sedimentation rate, grain size, and depth. Stephanocoenia intersepta in particular showed more cover and higher densities in area where sedimentation rates were low, sediment grain sizes were smaller and depths were deeper. The following paper examines southeast Florida community patterns and how these factors may influence them.

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3

Clinnin, Kaitlin M. "Moving from "Community as Teaching" to "Community as Learning": A New Framework for Community in Higher Education and Writing Studies." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1491222371780264.

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4

Franco, Albina Cristina Ribeiro. "Ectomycorrhizal fungal community composition of Betula colonising Calluna moorland." Available from the University of Aberdeen Library and Historic Collections Digital Resources, 2008. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=25222.

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5

Boyd, Michael Glen Broad Bob. "Discourse community pedagogy opening doors for students of composition /." Normal, Ill. Illinois State University, 2004. http://wwwlib.umi.com/cr/ilstu/fullcit?p3196658.

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Thesis (Ph. D.)--Illinois State University, 2004.
Title from title page screen, viewed May 18, 2006. Dissertation Committee: Bob Broad (chair), Jan Neuleib, Ron Fortune. Includes bibliographical references (leaves 148-151) and abstract. Also available in print.

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6

Faulwetter, Jennifer Lynn. "Analysis of microbial biofilm community composition within constructed wetlands." Diss., Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/faulwetter/FaulwetterJ1210.pdf.

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Constructed wetlands (CWs) are ecologically-based water treatment systems that provide cost-effective amelioration of waterborne pollutants. Fundamental understanding of removal mechanisms, especially microbial processes, limits greater usage of constructed wetlands as a wastewater treatment system. The influence of plant species selection, season, and organic load rate on pollutant removal was previously linked to the redox condition of the sub-surface wetland environment. The goal of this research was to determine which of these environmental variables (including spatial location within the CW) influenced the dominant microbial populations and/or the activity of various sub-populations. Once identified, a constructed wetland might be optimized for growth of microorganisms involved in removal of a specific pollutant. To assess environmental factors, microbial population samples were taken in six locations (effluent, 3 root and 2 gravel areas) within replicate unplanted microcosms and wetland microcosms planted with Deschampsia cespitosa or Leymus cinereus during the summer (24Â°C) and winter (4Â°C) seasons. Microcosms were fed a synthetic domestic wastewater in 20-day batches for at least 12 months prior to sampling. The most recent techniques in molecular biology including denaturing gradient gel electrophoresis (DGGE) and quantitative PCR were utilized and included treatment with and without propidium monoazide (PMA) to distinguish between "live" and "dead" microbial communities. Primer sets targeted the entire bacterial community (16S rDNA) and two functional groups, nitrifying bacteria (amoA gene) and sulfate reducing bacteria (dsrB gene). Results indicated that overall microbial community structure (16S rDNA) was affected by general location within the microcosm (effluent, root, gravel) as well the plant species present. Specific microbial groups appeared to be affected differently with relative gene quantities of sulfate reducing bacteria and nitrifying bacteria being influenced by a combined effect of plant species and season. For dsrB, D. cespitosa had the lowest relative gene quantities overall. Both genes were more abundant in the summer season, indicating seasonal importance. Location within the microcosms was also important, with anoxic environments (column bottom) being more important for dsrB presence and a diverse population of cultivated sulfate reducers. The roots were an important location for both microbial diversity and activity for all genes investigated. 'Co-authored by Vincent Gagnon, Carina Sundberg, Florent Chazarenc, Mark D. Burr, Jacques Brisson, Anne K. Camper, Otto R. Stein, Albert E. Parker, Alfred B. Cunningham, and Frank M. Stewart.'

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7

Nicolas, Stella Angie Jhovanska. "Forest fragmentation changes macroinvertebrate community composition in neotropical treeholes." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/55964.

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Habitat loss and fragmentation are the main drivers of biodiversity loss in terrestrial ecosystems, particularly in the tropics. Fragmented habitats can interfere with organism dispersion, population persistence and ecosystem functions but empirical studies report variation in the sensitivity of species and processes to fragmentation and the mechanisms operating behind observed responses remain poorly understood. In this study we examined the effects of forest fragmentation on the colonization of artificial treeholes in northwestern Costa Rica by measuring the responses at the community level. We explored four potential mechanisms driving differences in macroinvertebrate communities between continuous and fragmented forests: dispersal limitation, microclimate changes and bottom up or top down effects. Macroinvertebrate community composition differed significantly between continuous forests and forest remnants but not in the predicted direction. Our results suggest that treeholes in fragmented forest contain higher abundance of detritivores and experience changes in predator species identity consistent with increased nutrient input and a potential relaxation of predation pressure in small forest remnants. An overall resilience of treehole communities to forest fragmentation is interpreted with care as time-delayed responses to fragmentation continue to be a possibility. These findings advance our understanding of the response of biological communities to forest fragmentation and emphasize the value of preserving even small forest remnants for biodiversity conservation.
Science, Faculty of
Zoology, Department of
Graduate

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8

Stewart, Gavin. "Grazing management and plant community composition on Bodmin Moor." Thesis, University of Plymouth, 2002. http://hdl.handle.net/10026.1/2362.

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Background information, essential to a full appreciation of the research presented in the thesis, is submitted in Chapters Two, Three and Four in the form of literature reviews. Chapter Two includes a review of the geology, climate, soils, past management, vegetation history and nature conservation value of Bodmin Moor. The chapter culminates by discussing the proposed future management of grazing on Bodmin Moor. Chapter Three comprises a review of the mechanisms by which grazing affect vegetation. Particular reference is made to the effects of 7 General Introduction variation in grazing practices and interactions between grazing and other environmental variables. Chapter Four provides a review of successional processes with particular reference to the effects of grazing on upland plant community succession and the limits of current knowledge of grazing management in upland habitats. Chapter Five presents the results of phytosociological classification and explores the relationships between environmental variables and vegetation. Chapter Six examines spatial variation in the seed bank of Bodmin Moor in a range of communities at different depths. Chapter Seven presents the results of a Countryside Stewardship monitoring scheme established on Bodmin Moor North SSSI. Chapter Eight investigates the effects of variation in timing, frequency and severity of defoliation, on Molütia caerulea, along a soil moisture gradient. Chapter Nine reviews the preceeding work focusing on the overall implications of the thesis. The structure of the thesis is presented diagrammatically in Figure 1.1.

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9

Heywood, Jane Louise. "Bacterioplankton community composition and activity in the Atlantic Ocean." Thesis, University of Southampton, 2007. https://eprints.soton.ac.uk/145295/.

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Temporal and spatial patterns of bacterioplankton in six different provinces of the Atlantic Ocean were examined between 1996 and 2004. The abundance and integrated biomass of three prokaryote groups (Prochlorococcus spp., Synechococcus spp. and heterotrophic bacteria) were used to detect standing stock changes and characterise community structure in the Northern and Southern oligotrophic gyres and in the equatorial region. There was no statistically significant inter-annual variability in Prochlorococcus or Synechococcus abundance or integrated biomass in any of the provinces. The abundance and biomass of the remaining prokaryoplankton was variable but this variation could not be ascribed to seasonal differences and did not follow a clear inter-annual trend. The importance of the microbial loop in recycling organic nutrients in the upper Atlantic Ocean was also studied by comparing ratios of bacterial to primary production in different oceanic provinces. A proportionately higher rate of photosynthetically fixed carbon flowed through the microbial loop in the Northern oligotrophic gyre (22 – 55 %) compared to the other provinces studied. This indicates a difference in energy flow through the ecosystem in different oceanic regions with a greater emphasis on energy flow through the microbial loop in the Northern oligotrophic gyre probably due to reduced grazing of phytoplankton and reduced export production compared to other Atlantic Ocean provinces. The role of defined groups of bacteria in the cycling of nutrients was identified using a combination of flow cytometric sorting with radiotracer uptake and CARD-FISH. The SAR11 clade of bacteria were found to dominate the low nucleic acid group of bacterioplankton and as such it was possible to quantify the activity and abundance of these cells in the Atlantic Ocean. Despite their small genome size, SAR11 bacteria were found to be generally as active as an average bacterioplankton cell and were responsible for between 30 and 50 % of the total community methionine uptake. This research has characterised bacterioplankton composition and activity in Atlantic Ocean provinces thus enabling further understanding of the function and importance of the microbial loop in the upper ocean.

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10

Smith, Mandy Beth. "How Students Use Multimodal Composition to Write About Community." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1211985069.

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11

Wright, Chelsea Jill. "Anthropogenic noise alters avian community composition in temperate forests." Wright State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=wright1533215413980414.

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12

Zaczek, Nick Edward. "FOREST COMMUNITY COMPOSITION ON MESIC SITES IN NORTHERN WISCONSIN." OpenSIUC, 2013. https://opensiuc.lib.siu.edu/theses/1229.

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AN ABSTRACT OF THE THESIS OF Nick E. Zaczek, for the Master of Science degree in Forestry, presented on March 22nd, 2013, at Southern Illinois University Carbondale. TITLE: FOREST COMMUNITY COMPOSITION ON MESIC SITES IN NORTHERN WISCONSIN MAJOR PROFESSOR: Dr. Eric Holzmueller Prior to the passing of strict fire suppression laws in the late 1920s, the forests of Northern Wisconsin had been intensively harvested and burnt, producing a variety of successional forest community types. In this study successional patterns were examined in forest communities on mesic soils across the region. Stands were sampled using 0.4 ha nested plots for mature overstory trees and 0.004 ha for saplings and 0.002 ha for seedlings for the understory immature stems. Forest community types were organized by classification and multivariate analysis. Comparison of overstory, midstory, and understory species were made and stepwise linear regression was used to determine to what degree eleven soil characteristics were responsible for the occurrence/density of any of the species within the different community types. The six forest community types identified on the mesic soils were Balsam Fir, Bigtooth Aspen, Paper Birch, Quaking Aspen, Red Maple, and Sugar Maple. The first four communities were found on soils containing more than 72% sand and have similar understory conditions dominated by Abies balsamea and A. rubrum with little or no regeneration of the dominant overstory species. These four communities are dominated by species that require disturbances such as fire and/or harvesting to maintain their heterogeneity. The Red Maple and Sugar Maple communities are found on soils containing 65% or less sand. The understory of these two community types is dominated by A. rubrum, A. saccharum, and A. balsamea. It appears that endpoint or a steady-state community has developed on the mesic forest stands, given that no major disturbance occurs, is a convergence of a community of A. balsamea, A. rubrum, A. saccharum, and associated species. A convergence to a forest community dominated by these species poses several concerns to forest and ecosystem health and diversity if no management actions are taken. These species have very little wildlife value and more importantly an increasing density of A. balsamea has the potential to out-compete other species as well as increase the risk of a catastrophic and even stand replacing fire.

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13

Wendler, Rachael. "Community Perspectives On University-Community Partnerships: Implications For Program Assessment, Teacher Training, And Composition Pedagogy." Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/556591.

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As widely recognized, the voices of community members have been severely overlooked in scholarship. This dissertation reports on interviews with 36 community partners from the three most common types of university-community partnerships in composition and rhetoric: Youth mentored in their writing by first-year composition (FYC) students; Non-profit staff acting as clients for upper-division professional writing students; and Community members (including adult literacy learners, youth slam poets, and rural teachers) working with graduate students in a community literacy practicum or engaged research course. The project offers a theoretical rationale for listening to community voices, combining theories from community development with critical raced-gendered epistemologies to argue for what I term "asset-based epistemologies," systems of knowing that acknowledge the advantages marginalized communities bring to the knowledge production process in service-learning. The dissertation also suggests a reciprocal, reflective storytelling methodology that invites community partners to analyze their own experiences. Each set of community members offered a distinct contribution to community-based learning: Latino/a high school students mentored by college students revealed the need to nuance traditional outcomes-based notions of reciprocity. The high school students experienced fear about interacting with college students, a response that I understand through Alison Jaggar's concept of "outlaw emotions." To mitigate this fear, the youth suggested emphasizing cultural assets and relationships, leading to what I term "relational reciprocity." Non-profit staff detailed their complex motivations for collaborating with professional writing courses, challenging the often-simplistic representations of non-profit partners in professional writing scholarship. Invoking the theory of distributed cognition, I use non-profit staff insights to describe how knowledge circulates in non-profits and how students can interact and write more effectively in organizational contexts. Community members who interacted with graduate students in a range of projects used the term "openness" to describe healthy partnerships, and I build from their stories, along with insights from bell hooks and Maria Lugones, to detail a disposition of openness needed for engaged work. This disposition includes open communication, open structures, open minds, open hearts, and open constructions of self and others. The dissertation concludes with an argument for attention to "relational literacies" in both service-learning practice and scholarship.

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14

Brown, William P. "On the community composition and abundance of Delaware forest birds." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 3.75 Mb., p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3220635.

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15

Frost, Matthew. "Large-Scale spatial patterns of sandy beach macrofauna community composition." Thesis, University of Plymouth, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289587.

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16

Bogdasarova, Karina. "Oral Microbial Community Composition in Young Children with Cystic Fibrosis." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1404331049.

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17

Gacura, Matthew David. "Drivers of Fungal Community Composition and Function In Temperate Forests." Kent State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=kent1543579763552776.

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18

Fellowes, John Robert. "Community composition of Hong Kong ants : spatial and seasonal patterns /." Thesis, Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18737110.

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19

Magnusson, Tylan Wayne. "High Salinity Stabilizes Bacterial Community Composition and Activity Through Time." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/5535.

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Dormancy is a plausible strategy for bacteria to overcome the effects of temporal fluctuations in resources or stresses and await more “optimal” conditions to resume metabolic activity and growth. Seasonal changes in environmental conditions force microbes to adjust their metabolic activity accordingly, and community composition drastically shifts. In extreme environments, however, the overriding effects of a constant stress may constrain the need or benefit of bacteria entering dormancy. In hypersaline lakes, high metabolic activity is required to maintain adaptations that permit survival. Sampling from six lakes on a salinity gradient (0.05% – 30.3%), we measured seasonal fluctuations in bacterial dormancy patterns in summer, fall, winter, and spring of 2013-14. Dormancy was calculated based on ratios of OTU recovery between 16S rRNA-based communities (only the active bacteria) and 16S rRNA gene-based communities (all bacteria present in the community) from lake water. Dormancy was linked to lake chemistry shifts through time. We found that salinity was strongly related to relative bacterial dormancy. There was a negative linear relationship (R2 = .89 P <0.01) between total dormancy and salinity. Total phosphorus (R2 = .63, P < .001) and relative community contribution by rare taxa (R2 = .89, P < .001) were also important in structuring dormancy. Our findings suggest that temporal nutrient flux is highly influential on bacterial community composition and activity, but that the presence of an extreme variable decreases change in both through time.

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20

Shefchik, Michael James. "Effectively incorporating web tools into the community college composition curriculum." CSUSB ScholarWorks, 2003. https://scholarworks.lib.csusb.edu/etd-project/2435.

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This project shows how web tools can be effectively integrated into the community college composition curriculum through staff development. It shows the need for adaptation of materials designed for K-12 education to the community college level and the development of grade-appropriate materials using web resources. The need for authentic assessment is explored and the means to prove it were supplied. Examples of web tools, sites for developing web tools and resources for accessing and applying authentic assessment tools were given.

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21

Watson, Starr. "Perceptions of Persistence in a Community College English Composition Class." ScholarWorks, 2019. https://scholarworks.waldenu.edu/dissertations/7577.

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Abstract The purpose of this bounded qualitative case study was to explore students' perceptions of factors that influenced their success or failure in an online English composition course at a community college located in the southeastern United States and to understand how these factors affected their persistence in coursework. Retention rates in online for online English composition courses are lower compared to face-to-face English composition courses. Rapid expansion of online learning has led to increased concern regarding student persistence in courses and degree or certification completion. Tinto's interactionalist theory and Kember's model of student success framed the course of inquiry for this study. Eight online student volunteers, who completed, failed, or withdrew from a required entry-level English composition course, were purposefully selected and individually interviewed using a semistructured format. Data were thematically analyzed using open and pattern coding strategies and related to the conceptual framework. Key results revealed student perceptions of factors that influenced their success or failure in an online English composition course and suggested a change in pedagogical practices to improve persistence as well as institutional and instructional practices. Based on findings from this study, a white paper was drafted to present stakeholders with a 2-pronged approach to improve student persistence featuring faculty student engagement and meaningful action and reflection on student learning experiences in an online English composition course. This study contributes to social change by presenting a pedagogical shift to address a persistence problem in online English composition courses. Persistence to course completion can build students' confidence and keep them on a path to achieving their academic goals.

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22

Colby, Richard. "COMPUTERS, COMPOSITION AND CONTEXT: NARRATIVES OF PEDAGOGY AND TECHNOLOGY OUTSIDE THE COMPUTERS AND WRITING COMMUNITY." Connect to this title online, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=bgsu1158529699.

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23

Ruzicka, Dennis Edward Neuleib Janice. "Cognitive style and individualized instruction in a community college composition program." Normal, Ill. Illinois State University, 1998. http://wwwlib.umi.com/cr/ilstu/fullcit?p9914573.

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Thesis (Ph. D.)--Illinois State University, 1998.
Title from title page screen, viewed July 11, 2006. Dissertation Committee: Janice Neuleib (chair), Julia Visor, Jerry Weber, Heather Graves. Includes bibliographical references (leaves 169-176) and abstract. Also available in print.

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24

Zhou, J. (Jiehan). "Pervasive service computing: community coordinated multimedia, context awareness, and service composition." Doctoral thesis, Oulun yliopisto, 2011. http://urn.fi/urn:isbn:9789514296451.

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Abstract This thesis introduces a novel Web service-centric solution to pervasive computing, called Service-oriented Pervasive Computing (also called Pervasive Service Computing), which enables computer systems to deal with context in the user’s environment, to dynamically discover and compose existing services, and to develop Internet-scale multimedia applications that support users’ activities. First, this thesis introduces the concept of Pervasive Service Computing and its relation to community coordinated multimedia, context awareness, and service-oriented computing. It then investigates the state of the art, the practices, and techniques which have been developed to support such services. Building on these tools, this study adopts a service-oriented methodology to design a reference model for Pervasive Service Computing, for accommodating specified technical requirements. This model can serve as a guide for research and development towards Pervasive Service Computing. Second, the thesis examines the nature of community coordinated multimedia, and develops the concept of Community Coordinated Multimedia (CCM). To discover the potentials of discoverability and composability of multimedia applications, the thesis introduces a model for Service-oriented Community Coordinated Multimedia (SCCM), and demonstrates the idea of “multimedia application as a service.” Furthermore, the thesis presents a content annotation service and evaluates its feasibility as an end-user prototype. Third, the thesis investigates the nature of context awareness in Pervasive Service Computing, to broaden the definition of context and context-awareness. This research introduces context-aware pervasive service composition (CAPSC) applications, and specifies three-levels of context awareness. Building on this framework, the context-aware service composition prototype is implemented. Fourth, the author examines the overall potential of service composition in Pervasive Service Computing, distinguishes its two main functions as service collaboration, and service coordination, and then develops an ODPSC (Ontology-Driven Pervasive Service Composition) ontology. To address the availability and scalability of service composition, the thesis introduces options for dynamic service composition in the Cloud, and develops an accelerated Cloud architecture for service composition in the Cloud (namely CM4SC middleware). Last, the CM4SC middleware as a service prototype is implemented
Tiivistelmä Tässä työssä käsitellään uutta jokapaikan tietotekniikan Web-palvelukeskeistä ratkaisua, palveluorientoitunutta jokapaikan tietotekniikkaa (Pervasive Service Computing). Tämän avulla tietokonejärjestelmät voivat ottaa huomioon käyttäjän ympäristön tilanteen, löytää ja koota palveluja dynaamisesti, ja näin voidaan kehittää Internetin laajuisia käyttäjän toimintoja tukevia multimediasovelluksia. Ensiksi työssä esitellään jokapaikan tietotekniikan palvelujen käsite sekä tällaisten palveluiden suhde yhteisöllisesti koordinoituun multimediaan, tilannetietoisuuten ja palveluorientoituneeseen tietotekniikkaan. Tieteen nykytila sekä tällaisia palveluja tukemaan kehitetyt käytännöt ja tekniikat esitellään. Näihin työkaluihin pohjautuen työssä omaksutaan palveluorientoitunut metodiikka, kun jokapaikan tietotekniikan palveluille suunnitellaan referenssimalli, jonka avulla voidaan määritellä teknisiä vaatimuksia ja joka voi muutenkin toimia ohjenuorana jokapaikan tietotekniikan palvelujen tutkimukselle ja tuotekehitykselle. Toiseksi työssä tutkitaan yhteisöllisesti koordinoidun multimedian ominaispiirteitä ja määritellään yhteisöllisesti koordinoidun multimedian (Community Coordinated Multimedia, CCM) käsite. Multimediasovellusten löydettävyyden ja kokoamisen mahdollisuuksien kartoittamiseen luodaan palveluorientoitunut CCM-malli (Service-oriented Community Coordinated Multimedia, SCCM). Työssä esitellään ”multimediasovellus palveluna” -idea, jonka käyttökelpoisuutta arvioidaan sisältöpohjaisen annotoinnin prototyyppiratkaisun avulla. Kolmanneksi työssä tutkitaan jokapaikan tietotekniikan palvelujen tilannetietoisuutta laajentamalla tilanteen ja tilannetietoisuuden määritelmiä. Tutkimus esittelee tilannetietoiseen jokapaikan tietotekniikan palvelujen kokoamiseen (Context-Aware Pervasive Service Composition, CAPSC) perustuvia sovelluksia ja määrittelee kolme tasoa tilannetietoisuudelle. Tämän viitekehyksen avulla toteutetaan tilannetietoinen palvelujen kokoamisen prototyyppi. Neljänneksi työssä arvioidaan jokapaikan tietotekniikan palvelujen kokoamisen mahdollisuuksia, tunnistetaan sen kaksi keskeistä toiminnallisuutta, palvelujen yhteistoiminnallisuus (service collaboration) ja palvelujen koordinointi (service coordination), sekä kehitetään ODPSC (Ontology-Driven Pervasive Service Composition) -ontologia. Työssä esitetään saavutettavuuden ja laajennettavuuden haasteisiin ratkaisuksi dynaaminen palvelujen kokoaminen pilvipalveluna. Työssä kehitetään kiihdytetty pilviarkkitehtuuri (CM4SC-välikerrosohjelmisto) palvelujen kokoamiseen pilvessä. Lopuksi työssä toteutetaan CM4SC-välikerrosohjelmiston palveluprototyyppi

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Mooney, Philip Denver. "Airway microbial community composition and neutrophil function in chronic respiratory disease." Thesis, Queen's University Belfast, 2017. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.728194.

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Hare, Clinton Earl. "Consequences of iron limitation and climate change on phytoplankton community composition." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 189 p, 2007. http://proquest.umi.com/pqdweb?did=1264630411&sid=2&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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27

Cassidy, Angela J. "Plant community composition of a calcareous fen in Delaware County, Indiana." Virtual Press, 2005. http://liblink.bsu.edu/uhtbin/catkey/1315180.

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This study investigated the vascular flora diversity, seed bank composition, and physical parameters of the fen at Red-Tail Nature Preserve (RTNP) in Delaware County, Indiana for a better understanding of plant community composition. Data were collected from eighty sample points established on transects occurring in four sampling zones. The results of the study were subjected to detrended correspondence analysis (DCA) in order to analyze plant community data and to provide an indication of differences in community composition between the sampling zones. Results from DCA analysis were compared to physical parameter analysis of soil and water from each sampling zone to determine relationships between plant community types and environmental factors.Ball State UniversityMuncie, IN 47306
Department of Biology

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28

Russ, Jonathan M. "The Microchiroptera of Northern Ireland : community composition, habitat associations and ultrasound." Thesis, Queen's University Belfast, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.480681.

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29

Ahern, Helen. "Cloud bourne bacteria : community composition and potential impact on atmospheric nucleation." Thesis, University of East London, 2008. http://roar.uel.ac.uk/3385/.

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Microorganisms were discovered in clouds over 100 years ago but detailed information on community structure and function is severely limited. Clouds may be a niche within which bacteria could thrive and influence dynamic cloud processes using ice nucleating and cloud condensing abilities. Gaining an understanding of the bacterial communities and their possible role in these processes might introduce another discipline into meteorology and climate modelling. Cloud and rain samples were collected in 2003 from Bowbeat Windfarm in the Scottish Moorfoot Hills and two mountains in the Outer Hebrides. Community composition was determined using a combination of amplified 16S ribosomal DNA restriction analysis and sequencing. 100 clones from the Bowbeat sample revealed ten OTUs of which three contained more than two clones. 256 clones from the Hebrides samples revealed 111 OTUs of which 33 contained two or more clones. In all the cloud samples the largest OTUs were identified as fluorescent Pseudomonas sp. To investigate bacterial metabolic activity in clouds a further four cloud samples were collected from Bowbeat in 2006. Reverse transcriptase and quantitative PCR did not definitively reveal metabolic activity in cloud bacteria, however the methodology requires further testing. Heterogeneous nucleation is central to the Bergeron-Findeisen process of raindrop formation. Several bacterial species act as heterogeneous nuclei by producing an ice nucleation (IN) protein. PCR targeting the IN gene of Pseudomonas fluorescens (InaW) in Pseudomonas isolates and cloud DNA did not amplify the IN gene. Freezing cultures using differential scanning calorimetry also failed to reveal the IN phenotype. A finding which evolved from the research was all the fluorescent Pseudomonas cloud isolates displayed biosurfactant activity. Surfactants are very important in the process of activating aerosols into cloud condensation nuclei (CCN). It is also known that surfactants influence cloud droplet size and increase cloud lifetime and albedo. Some bacteria are known to act as CCN and so it is conceivable that these fluorescent pseudomonads could be using surfactants to facilitate their activation from aerosols into CCN. This might allow water scavenging, counter desiccation and aid their dispersal.

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30

Del, Russo Celeste. "(Re)Building Cultural, Community, and Academic Identity: Freshman Composition After Katrina." ScholarWorks@UNO, 2006. http://scholarworks.uno.edu/td/486.

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Composition studies has become increasingly focused on the connection between place, identity, and the act of writing, maintaining, as theorist Nedra Reynolds states, that â€œwhere writing instruction takes place has everything to do with howâ€ (20). Considering the social, political, and cultural contexts of a post-Katrina Southeastern Louisiana, administrators and instructors at the University of New Orleans must begin to question how our freshmen writing program can best serve our students as they enter into the future of a "new" New Orleans. Implementing a "localized pedagogy" into the freshmen composition classroom--that is, a community-based pedagogy that draws from local resources, engages students in acts of public writing, and implements a service learning component--can help students answer to new roles of citizenship. This project exhibits instructor pedagogy and student writing generated during post-Katrina semesters to illustrate what a localized pedagogy might look like in composition classrooms at UNO.

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31

Tuyisingize, Deogratias. "Terrestrial small mammal community composition in the Volcanoes National Park, Rwanda." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/4763.

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Martin, Gregory Dean. "Microbial Community Composition and Activities in Wet Flue Gas Desulfurization Systems." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1493919370366314.

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Rich, Mackenzie E. "Understanding the terrestrial carnivore community composition and distribution in Southeastern Ohio." Ohio University Honors Tutorial College / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1502457596697641.

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34

Schutt, Amanda E. "Using macroinvertebrate community composition to distinguish between natural and anthropogenic sedimentation." VCU Scholars Compass, 2012. http://scholarscompass.vcu.edu/etd/2896.

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Excess fine sediment from human activity is a major pollutant to streams across the U.S.; however, distinguishing human-induced sedimentation from natural fine sediment is complex. The U.S. Environmental Protection Agency recently implemented a protocol for the quantitative field assessment of human-induced sedimentation using measurements of stream geomorphology. Macroinvertebrate community composition, streambed sediment stability, and sediment composition were studied at 49 sites in the James River watershed in central Virginia. Sediment composition was found to be a stronger driver of community composition than sediment stability. Although I was not able to show that macroinvertebrate metrics were related to sediment stability independently of actual fine sediment composition, some metrics, including percent Ephemeridae, a family of burrowing mayflies (order = Ephemeroptera) show promise as valuable tools for regional biologists and resource managers to discriminate among streams considered impaired for sediment pollution.

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35

Moore, Timothy S. "Dynamics of phytoplankton community composition in the western Gulf of Maine." Restricted access (UM), 2008. http://libraries.maine.edu/gateway/oroauth.asp?file=orono/etheses/37803141.pdf.

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These (Ph.D.)--University of New Hampshire, 2008.
Title from PDF title page. Available through UMI ProQuest Digital Dissertations. Includes bibliographical references (leaves 145-157). Also issued in print.

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36

Kobayashi, Yuki. "Longitudinal and seasonal variations in bacterial community composition in river biofilms." 京都大学 (Kyoto University), 2009. http://hdl.handle.net/2433/124462.

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37

SALOMONE, PIETRO. "Analysis and understanding of Lepidoptera community composition in the Colfiorito Plateaus." Doctoral thesis, Università degli Studi di Camerino, 2011. http://hdl.handle.net/11581/401870.

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Lepidoptera may be appropriate as ecological indicators because of their rapid response to environmental changes, along with a sensivity to habitat fragmentation, edge effects, pesticides and their importance as pollinators. They occur in many habitats, reflect changes in other animals and plants and have great resonance with the public. Indeed, they are involved in the achievement of 2010 target and have a primary role in the European policy of environment conservation and management. Although they are much studied some aspects still remain unclear; baseline data on some species habitat preference and activity patterns remain largely unknown, especially for moths. Indeed, lepidoptera communities have been scarcely studied and their ecology of populations is not often well known. Thus, were studied the lepidoptera communities in three types of habitat, different in their degrees of disturbance, in order to assess the composition and the main characteristics; they were lake, marshy and wet meadows vegetation, agricultural crop vegetation and pasture and montane grassland vegetation. Comparisons with habitat types could also reveal important information on species behavioural and ecological plasticity. The main purpose of this research is to develop a monitoring program that is compatible with overall European monitoring needs. It provides standardized protocols, baseline data, and analysis guidance that will be useful for a long-term lepidoptera monitoring program. Additionally, it helps update data of lepidoptera populations of high conservation concern. This study provides the foundation for implementing a long-term lepidoptera monitoring program on Colfiorito open space lands. The relationship between biodiversity and vegetation types were studied with a variety of different indices that can be used as measures of some attribute of community structure. Were used univariate and multivariate methods for discriminating the spatial and temporal variations of species diversity and to compare the effectiveness of various statistical approaches and then present the best strategy for discriminating the spatial variations of species diversity. The first part of investigation has been given to a set of ecological indices that are capable of providing a numerical value using a synthetic overview of species diversity and equipartition based on vegetation types. Shannon-Wiener, Simpson, evenness and Margalef indices were used to visually discriminate the spatial variations. It leaves room for more interpretation the plot obtained from the PCA, constructed on the basis of similarity in species and number of individuals observed in each site. Moreover, the ANOVA allowed to ascertain differences in the number of species in all the indipendent variables and in the number of individuals between type 2 and 3 that are statistically significant at p minus 0.05. The discriminant function analysis played a key role in building a control model based on total number of species and individuals in the sampling sites that were attributed a priori to a category of vegetation. The functions can then be also applied to new cases with measurement for the predictor variables but unknown group membership. Knowning sampling sites values in species and individuals, it is possible to use the discriminant function to determine to which group the sampling sites belongs to. A list of which species occur in each of the habitats and which habitats contain species unique to them is important for conservation planning. A faunal list for Colfiorito plateaus was made and can be ever update with future field data to provide a complete view of when species are on the wing and to document a list of taxa occurring on Colfiorito plateaus.

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Kuperman, Renee Louise. "An analysis of rhetorical situation in the context of community mediation." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/289109.

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This dissertation is a rhetorical study of mediation that theorizes ways in which people can use language to consistently achieve peaceful resolutions of conflicts. In this study, I analyze community mediation at the Our Town Community Mediation Program, which provides free or low cost dispute resolution services. Disputants engage in a conflict defined by a particular rhetorical situation with its own exigence and constraints. The major finding of this study is that once the disputants have entered into a mediation, they become engaged in a second rhetorical situation that is in a dynamic relationship with the first. Thus the mediation experience involves a "rhetorical system" of situations. The primary exigence is defined as the urgency that obliged the unresolved conflict. The primary constraints are those factors that determined the rhetorical discourse. Through interviews with four mediators and a case study of a mock mediation, I identify eleven new constraints in the secondary situation that give presence to a secondary exigence, namely, miscommunication. The secondary situation values conciliatory rhetoric, making a mutually satisfactory resolution possible. In this way, rhetorical situation is itself used as a rhetorical device to elicit a resolution. I begin by arguing that mediation is a rhetorical activity that resembles ideal public discourse as described by Chaim Perelman and Kenneth Burke. Qualities such as on going dialog and situationally specific justice make mediation a useful model for critiquing deliberative democratic discourse. In Chapter Two, I explain that my research methodology serves to acknowledge mediation as a living process. In Chapter Three I explore the rhetorics of mediation taking into account, for example, its unusual use of argument and its transformative goals. In Chapter Four, I analyze the data from my research, redefining concepts such as neutrality, agency, good communication and conflict. And in Chapter Five, I explore the possibility of a wider application for the concept of rhetorical system, concluding that while the discourse of mediation may be too situationally specific to apply whole cloth to other forms of public discourse, the concept of rhetorical system has wide ranging applications.

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Berga, Quintana Mercè. "Assembly Mechanisms in Aquatic Bacterial Communities : The Role of Disturbances, Dispersal and History." Doctoral thesis, Uppsala universitet, Limnologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-207183.

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Environmental conditions, biotic interactions, dispersal and history have been suggested to be important processes influencing the spatial distribution of organisms and thus to affect community assembly. Understanding how these processes influence community assembly is important, particularly because community diversity and composition are suggested to be relevant for ecosystem functioning. Moreover, bacteria are strongly contributing to nutrient and carbon cycle. Bacteria are highly abundant and ubiquitous, and thus it is relevant to study how they are assembled. This thesis aims to gain insight on the role of these processes on aquatic bacterial community assembly, diversity and functioning. The studies included in this thesis involve transplant and microcosm experiments performed in the lab as well as manipulation experiments and field surveys in a natural rock pool systems. Bacterial community composition was addressed by analysis of 16S rRNA gene and community functioning by measuring bacterial production, community respiration and the ability to use different carbon substrates. This thesis highlights that species sorting is a very important assembly mechanism for bacterial communities, but also finds that other processes such as dispersal and history contribute to the patterns observed. Dispersal caused rescuing effects compensating for losses of diversity; at the same time it increased the similarity between communities. Moreover, bacteria have shown a high level of functional plasticity when colonizing a new locality. Interestingly, past environmental conditions explained the structure of bacterial communities better than present-day environmental conditions. Disturbances and biotic interactions are also important in the assembly of communities. Disturbance caused temporary shifts in bacterial function and changes in composition, the magnitude of which depended on the intensity and the frequency of the disturbance. However, natural aquatic bacterial communities showed quite high resilience capacities. Competition can shift the proportion of generalists and specialists species whereas predation or trophic interactions have been found to decrease diversity and to modify the importance of stochasticity. Both caused alterations of community functioning. Finally, this thesis shows that the diversity-functioning relationship is context dependent. Further research should be directed to understanding the intensity and direction of changes in composition and how this affects the functionality of bacterial communities

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40

Sircom, Julie. "DETERMINANTS OF THE BIODIVERSITY AND COMPOSITION OF STREAM INSECT COMMUNITIES." Springer, 2009. http://hdl.handle.net/10222/11486.

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The North Mountain of the Annapolis Valley, NS, in eastern Canada, is a ~200 km basalt ridge drained by many small first or second order streams in independent catchments. The area is fairly uniform geologically, presenting an opportunity to compare streams of similar chemistry, slope and aspect, that vary in other respects, such as invertebrate community structure. In this thesis, I examine two macroinvertebrate functional groups to determine key factors influencing their abundance, composition and diversity across catchments. Chapters 2 and 3 are concerned with the predatory invertebrate guild in eight of the streams, in two groups separated by ~65 km. In Chapter 2, I assessed factors influencing composition of the predator guild using similarity matrices. Similarity in predator composition declined with distance, and streams that were more similar in disturbance (spates) were more similar in predator composition. Similarity within one family, Rhyacophilidae, was related to similarity in fish population. Chapter 3 reports the results of laboratory experiments involving two widespread species. Field data suggested an asymmetric interaction between Sweltsa onkos (Plecoptera: Chloroperlidae) and Rhyacophila vibox (Trichoptera: Rhyacophilidae); behavioural observations in artificial streams supported this. In the presence of R. vibox, S. onkos had higher mortality and injury rates, and grew less. The results of these chapters suggest that, although disturbance is important in shaping community structure, the results of interspecific interactions can be detected at large scales. S. onkos can only attain high numbers in streams where fish predation reduces the abundance of R. vibox. Chapter 4 examines biodiversity patterns in the macroinvertebrate detritivore guild in 25 streams encompassing ~80 km of the ridge. Using density and richness of the detritivore community, detrital resource quantity, and top predator abundance, I looked for evidence in support of several mechanisms that can lead to positive species-energy relationships. Patterns conformed to expectations of the More Individuals Hypothesis. It appears that taxonomic richness of the detritivore guild increases with detrital resource availability because more taxa can attain their minimum viable population size where more resources are available.

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Knudson, Kandace Margretta. "Community college freshman composition instructors' choices of readings : the importance of context /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2005. http://uclibs.org/PID/11984.

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42

Wise, Ben. "Community Composition of Nitrite Reductase Genes in an Acid Mine Drainage Environment." Thesis, University of Colorado at Denver, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10607867.

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High elevation, mountainous regions have a high concentration of mining activities and resulting acid mine drainage (AMD) that is typically acidic and often contains elevated concentrations of metals. The impacts of AMD on denitrifying microbial communities is not well understood, despite these organisms’ central role in the nitrogen cycle, contribution to greenhouse gas production, and potential to provide ecosystem services through the mitigation of nitrogen pollution. This study examined denitrifying microbes across four regions within the Iron Springs Mining District (13 sites over four time-points) located in Southwest Colorado at high elevation that receive AMD or naturally-occurring acid rock drainage (ARD). Denitrification functional gene sequences ( nirS and nirK coding for nitrite reductase) had a high number of observed OTUs (260 for nirS and 253 for nirK) and were observed at sites with pH as low as 3.2, dissolved oxygen as low as 1.0 mg/L, and metals >10 mg/L (including aluminum, iron, manganese, and zinc). A majority of the nirK and nirS OTUs (> 60%) were present in only one sampling region. Approximately 8% of the nirK and nirS OTUs had a more cosmopolitan distribution with presence in three or more regions. Phylogenetically related OTUs were found across sites with very different chemistry. The total nirS community structure was correlated to iron, conductivity, sodium, and calcium, which may suggest that these factors play an important role in shaping the nirS community. Overall, these findings improve upon our understanding of the potential for denitrification within an ecosystem impacted by AMD and provide a foundation for future research to understand the rates and physiology of these denitrifying organisms.

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Smith, Ami Marie. "Uncovering microbial community composition, dynamics, and function in a thermophillic anaerobic digester." Thesis, University of Exeter, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.496104.

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Anaerobic digestion is an effective method for reduction of organic waste related pollution while providing a sustainable means of energy production. Anaerobic digestion technologies have been in development for over a century, however much of the microbial diversity responsible for anaerobic digestion remains unknown. Digesters often suffer from Instability leading to inefficiency and failure of the natural microbial process. Greater knowledge of the micrcobial communities involved in anaerobic digestion is important for improving these engineered systems. Many microorganisms are as yet unculturable making it difficult to characterize complex microbial communities. The use of 16S rDNA phylogenetic comparisons has become a powerful tool for elucidating the microbial constituents of complex environmental samples. Volatile fatty acids (VFA's) are important intermediates in the naturally occurring microbial metabolism responsible for methanogenic degradation. Accumulation of VFA's Is a sign of methanogen inhibition and therefore digester malfunction. Acetic acid and propionic acid are important VFA's known to accumulate in anaerobic digesters.

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Si, Weiduo. "The effect of plant residue decomposition on microbial community composition in soil." Thesis, University of Newcastle Upon Tyne, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324866.

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45

Albaggar, Ali. "Investigation of bacterial community composition and abundance in a lowland arable catchment." Thesis, University of East Anglia, 2014. https://ueaeprints.uea.ac.uk/52167/.

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This study aimed to characterise the bacterial community composition and abundance in the River Wensum in Norfolk using epifluorescence microscopy (EFM), automated ribosomal intergenic analysis (ARISA) and 454 pyrosequencing. It also aimed to determine the effects of spatial and temporal variations and environmental factors on bacterial community composition and abundance in this intensively farmed lowland catchment. The three techniques provided the same trends in bacterial community composition and abundance across the Wensum catchment. Total bacterial numbers ranged from 0.21 × 106 cells/mL to 5.34 × 106 cells/mL (mean = 1.1 × 106 cells/mL). The bacterial community composition and abundance showed significant differences between sites and times and were related to environmental parameters, with temperature and flow rate explaining most of the variation in bacterial community composition and abundance. Bacterial abundance increases as water moves downstream, while bacterial diversity decreases as water moves downstream. Some operational taxonomic units (OTUs) become commoner as the water moves downstream (3rd and 4th order streams). This presumably reflects the fact that these bacteria are actively growing in the river, and reducing the abundance of other taxa. Consequently, the community becomes less diverse moving downstream, although a small number of sites do not fit this pattern. The River Wensum is dominated by the phyla Proteobacteria, Bacteroidetes, Cyanobacteria and Actinobacteria. Members of these phyla are well known to be responsible for biogeochemical processes, such as nitrogen cycling. The commonest bacteria at upstream sites were Proteobacteria (OTUs 2 and 4), Deltaproteobacteria (OTU29), Gammaproteobacteria (OTU32), Sphingobacteria (OUT9) and Flavobacteria (OTUs 12 and 23). Most OTUs (2, 9, 17, 29 and 32) are considered to be soil bacteria, suggesting that these bacteria are terrestrial in origin and are flushed into the lower order streams. Most of the upstream bacteria showed positive relationships with total nitrogen (TN) and total carbon (TC) and the presence of arable areas. On the other hand, the commonest bacteria at downstream sites were Cyanobacteria (OTU1), Flavobacteria (OTUs 3, 10 and 19), Cytophagia (OTU14), Actinobacteria (OTUs 20, 21 and 25) and Alphaproteobacteria (OTU26). Most of the downstream bacterial OTUs showed a positive relationship with TP and the presence of urban areas. The results of this research, however, do not provide strong evidence that competition is an important process structuring these bacterial communities. In addition, the correlations between environmental parameters and bacterial composition and abundance are not strong and do not clearly distinguish the most impacted sites from others. This suggests that bacterial community composition cannot be used as an indicator of the ecological status to assess compliance with Water Framework Directive (WFD) in a moderately impacted lowland catchment like the Wensum.

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Popescu, Dorin-Mirel. "An investigation of bacterial composition and biofilm structure in mixed-community bioanodes." Thesis, University of Newcastle upon Tyne, 2016. http://hdl.handle.net/10443/3416.

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Microbial fuel cells (MFC) are devices that convert chemical energy in soluble organic matter into electrical energy. They can be used for wastewater treatment coupled with energy production as well as for sensing, hydrogen production, electrosynthesis and metal recovery. Implementing these technologies is hindered by low current production. Currently, little is known about anodic communities regarding growth, electrode coverage, bacterial composition, biofilm structure, metabolism and how are they affected by operational factors. Such knowledge is needed to engineer MFCs that can overcome current limitations. The subject of the present study is the mixed-community bioanode. The effects of light, anode-tocathode surface ratio (A/C), substrate composition and anode potential on bioanodes were investigated. Two types of substrates were used: the first was based on sodium acetate and the second was a synthetic wastewater which simulated the chemical composition of real wastewater. First bioanodes were studied in presence and absence of light. A different set of bioanodes were grown at 9 different A/C ratios in single-chamber MFCs. Another set of bioanodes were grown in half-cells at 3 different anode potentials (-400 mV, -200 mV and 0 mV vs Ag/AgCl). The development of anodic biofilms and their long-term dynamics were investigated using a multi-anode reactor which allowed for better replication of running conditions. Geobacter was identified in all bioanodes but its abundance was highly variable and dependent on running conditions. Over time the bacterial composition of bioanodes under constant conditions continuously changed during the first 33 days but stabilised by the 67th day. Bioanodes fed on acetate had higher cell counts, Geobacter percentage, and current output than bioanodes fed on synthetic wastewater. Light exposure decreased coulombic efficiency by almost 14 times and favored growth of Rhodopseudomonas species in the detriment of Geobacter. Abundance of Geobacter increased with anode potential when fed on acetate (from 609.98 106 cells/gram at -400 mV to 5212.38 106 cells/gram at 0 mV) but decreased when fed on synthetic wastewater (from 200.6 106 cells/gram at -400 mV to 49 106 cells/gram at 0 mV). Current density and Geobacter density decreased by an order of magnitude when A/C ratio was varied from 1:12 to 1:1 but remained relatively constant when A/C was increased further to 8:1. Uneven biomass coverage on bioanodes and a decrease of biofilm volume with depth inside bioanodes were observed suggesting that anodes were only partially used by electrigenic bacteria. Results reported here have important implications for future reactor designs, on the use of three-dimensional bioanodes and on long-term applications of Microbial Fuel Cells.

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Dempsey, Mark A. "Exotic earthworms and soil microbial community composition in a northern hardwood forest." Miami University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=miami1259958575.

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Hays, Jennifer Lynne. "Changes in Avian Community Composition at Sugarcreek Metropark between 1978 and 2010." Wright State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=wright1311270183.

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Jackson, Chtaura. "Factors Influencing Macroinvertebrate Diversity and Community Composition in Riverine Freshwater Rock Pools." VCU Scholars Compass, 2010. http://scholarscompass.vcu.edu/etd/2311.

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I examined a system of 378-riverine rock pools situated along the James River in Richmond, Virginia, to uncover the factors influencing their macroinvertebrate diversity and community composition. I characterized (total = 60) the physical characteristics, water quality, hydrology, and community assemblages in July 2009 for a subset of pools. I examined whether selected environmental factors (pH, nearest neighbor distance, depth, surface area and inundation height) were related to macroinvertebrate diversity and community composition. Species richness and total abundance of all taxa increased with pool pH and surface area. Ordination indicates that nearest neighbor distance (NND) and pH varied significantly among pools. My findings indicate that macroinvertebrate diversity in this rock pool system were mainly related to the surface area, pH and NND.

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Dempsey, Mark Austin. "Exotic earthworms and soil microbial community composition in a northern hardwood forest." Oxford, Ohio : Miami University, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=miami1259958575.

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