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Thematische Bibliographien / Biotic communities / Dissertationen

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Dissertationen zum Thema „Biotic communities“

Autor: Grafiati

Veröffentlicht am 4. Juni 2021

Zuletzt aktualisiert am 30. Juli 2024

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1

Henriksson, Anna. "Biotic resistance in freshwater fish communities." Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-110251.

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Invasions of non-native species cause problems in ecosystems worldwide, and despite the extensive effort that has been put into research about invasions, we still lack a good understanding for why some, but not other, communities resist these invasions. In this doctoral thesis I test hypotheses on biotic resistance using a large dataset of more than 1000 both failed and successful introductions of freshwater fish into Swedish lakes. We have found that the classic species richness hypothesis is a poor descriptor of introduction success because it fails to acknowledge that resident species contr

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2

Ricks, Kevin Daniel. "Biotic Filtering in Endophytic Fungal Communities." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/6871.

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Plants can be colonized by complex communities of endophytic fungi. This thesis presents two studies, both of which investigate biotic filtering in endophytic fungal communities. Chapter 1. Endophytic fungi can be acquired horizontally via propagules produced in the environment such as in plant litters of various species. Given that litters from different plant species harbor distinct endophytic fungal communities and that endophytic fungi may be dispersal-limited, the structure of the endophytic fungal community of a given plant may be determined by proximity to particular inoculum sources. C

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3

MacDonald, Arthur Andrew Meahan. "Abiotic and biotic factors creating variation among bromeliad communities." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/58954.

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Many ecological communities show variation from place to place; understanding the causes of this variation is the goal of community ecology. Differences in community composition will be the result of both stochastic and deterministic processes. However, it is difficult to know to what degree deterministic processes will shape community composition. In this thesis I combined observational and experimental approaches to quantify deterministic processes within a particular ecological community -- they phytotelmata of bromeliad plants. In my thesis I describe three studies at different scales of o

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4

Theron, Leon-Jacques. "Distribution and abundance of rodents, millipedes and trees in coastal dune forests in northern KwaZulu-Natal." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/03292006-103859.

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5

Waterhouse, Martin. "On the edge : peripheral communities and marginal anthropology." Thesis, University of South Wales, 2002. https://pure.southwales.ac.uk/en/studentthesis/on-the-edgeperipheral-communities-and-marginal-anthropology(ef955531-baf0-445a-9e41-6720a9874a88).html.

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This is a study of people, place, and cultural "identity" in two small parishes that are geographically on the periphery of the United Kingdom. Both are coastal parishes: one is in South-west Wales overlooking the Irish Sea and the other is one of the islands comprising The Orkney archipelago.' This is also a work of marginal anthropology (Fox, 1975) that discusses both conventional and more experimental "ways of telling" in an attempt to interpret human social behaviour.

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6

Karsten, Jennifer. "Teaching about complexity in primary and secondary schools : an exploration of new approaches to ecosystem education." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=85174.

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The purpose of this research was to investigate ways in which complexity could be used as the paradigm through which schoolchildren might understand ecosystems in a new way. To that end, new conceptual and practical approaches for learning about ecosystems have been presented, and the effects of these approaches on teachers and other educational stakeholders have been explored. A variety of learning environments were visited and over two hundred educational stakeholders were consulted. This resulted in a number of suggestions on and a discussion of the introduction of complexity, as a l

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7

Fultz, Jessica Erin. "Effects of shelterwood management on flower-visiting insects and their floral resources." Thesis, Montana State University, 2005. http://etd.lib.montana.edu/etd/2005/fultz/FultzJ0805.pdf.

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8

Shanmuganathan, Subana. "Soft systems analysis of ecosystems thesis submitted to Auckland University of Technology in fulfillment of the degree of Doctor of Philosophy, 2004." Full thesis. Abstract, 2004.

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9

Boller, Michael Louis. "Hydrodynamics of marine macroalgae : biotic and physical determinants of drag /." View online ; access limited to URI, 2005. http://0-wwwlib.umi.com.helin.uri.edu/dissertations/dlnow/3188836.

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10

Jaeger, Andrea L. "Invasive species impacts on ecosystem structure and function." Diss., Connect to online resource - MSU authorized users, 2006.

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11

Consuegra, Erin Jean Liles Mark Russell. "Characteristics of viral communities in soil, activated sludge, and influent." Auburn, Ala., 2009. http://hdl.handle.net/10415/1791.

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12

Zhang, Chi Tian Hanqin. "Terrestrial carbon dynamics of southern United States in response to changes in climatic, atmosphere, and land-use/land cover from 1895 to 2005." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SPRING/Forestry_and_Wildlife_Sciences/Dissertation/Zhang_Chi_13.pdf.

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13

Snyder, Gretchen Beth. "Mechanisms driving increased prey consumption with increasing predator diversity." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Dissertations/Summer2009/G_Snyder_051509.pdf.

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14

FAGORZI, CAMILLA. "The green deal challenge: exploiting biotic interactions from bacterial strains to communities." Doctoral thesis, Università degli studi di Ferrara, 2021. http://hdl.handle.net/11392/2488178.

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One of the main factors behind agricultural sustainability is the effective management of nitrogen (N) inputs, a key element for crop production. Plant growth and agricultural yield is a result of complex interactions between the plant, soil and its microbial communities. An effective way for the management of N inputs resulting in farming practices that are economically viable and environmentally prudent is the use of biologically fixed nitrogen. Symbiotic nitrogen fixing bacteria (rhizobia) represent a promising source of biologically fixed nitrogen, since they provide N inputs directly into

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15

Nakamura, Masahiro. "Positive plant-mediated indirect effects of biotic and abiotic factors on arthropod communities." 京都大学 (Kyoto University), 2004. http://hdl.handle.net/2433/147855.

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16

Hoopes, Carla. "Influence of native bunchgrass and invasive forb litter on plant growth in a semi-arid bunchgrass prairie." Thesis, Montana State University, 2006. http://etd.lib.montana.edu/etd/2006/hoopes/HoopesC0506.pdf.

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17

Degerman, Traci Michelle. "The development of landscape design principles based upon ecosystem aesthetics, and their application in rehabilitating Diablo Lake Overlook, Ross Lake National Recreation Area, Washington." Online access for everyone, 2007. http://www.dissertations.wsu.edu/Thesis/Spring2007/T_Degerman_050307.pdf.

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18

Kaye, Maria Ellen. "The role of functional traits and phylogeny in assembly of tropical forest communities in Danum Valley, Sabah." Thesis, University of Aberdeen, 2016. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=231264.

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Tropical forests have been studied by community ecologists since the earliest days of the field because of their diversity and complexity and much of the theory behind community assembly has been developed in the tropics. However, the processes that act to assemble species in tropical forest across a very fine scale are still poorly understood. This study investigates community structure in 20ha area of hyper diverse tropical rainforest in Sabah, Malaysia. In order to examine community phylogenetic structure, I reconstructed a molecular phylogeny for all species in the study site using DNA bar

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19

Harley, Christopher David Grant. "Environmental modification of biological interactions : a comparison across scales /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/5271.

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20

Ciannelli, Lorenzo. "Cross-scale analysis of the Pribilof Archipelago, southeast Bering Sea, with a focus on age-0 walleye pollock (Theragra chalcogramma) /." Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/5292.

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21

Simpson, Roderick F. "EcoSystem-Sim a virtual ecosystem simulator /." [Gainesville, Fla.] : University of Florida, 2001. http://purl.fcla.edu/fcla/etd/UFE0000352.

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Thesis (M.S.)--University of Florida, 2001.<br>Title from title page of source document. Document formatted into pages; contains x, 60 p.; also contains graphics. Includes vita. Includes bibliographical references.

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22

Speckman, Suzann Gail. "Characterizing fish schools in relation to the marine environment and their use by seabirds in lower Cook Inlet, Alaska /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/5301.

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23

Turner, Andy W. Rabeni Charles F. "Watershed-sediment-biotic linkages in small streams of Missouri's Osage River Basin." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/5358.

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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on January 19, 2010). Thesis advisor: Dr. Charles F. Rabeni. Includes bibliographical references.

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24

Selong, Jason H. "Impacts of aquaculture effluent on water quality and biotic communities in Virginia headwater streams." Thesis, This resource online, 1997. http://scholar.lib.vt.edu/theses/available/etd-08252008-162223/.

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25

Stolk, Henk. "Emergent models in hierarchical and distributed simulation of complex systems : with applications to ecosystem and genetic network modelling /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19095.pdf.

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26

Hooten, Mevin B. "Hierarchical spatio-temporal models for ecological processes." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4500.

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Thesis (Ph.D.)--University of Missouri-Columbia, 2006.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (April 26, 2007) Vita. Includes bibliographical references.

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27

Boyd, Eric Stephen. "Biology of acid-sulfate-chloride springs in Yellowstone National Park, Wyoming, United States of America." Diss., Montana State University, 2007. http://etd.lib.montana.edu/etd/2007/boyd/BoydE0807.pdf.

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28

Kathiria, Palak, and University of Lethbridge Faculty of Arts and Science. "Incompatible and compatible plant pathogen interactions." Thesis, Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2006, 2006. http://hdl.handle.net/10133/351.

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Pathogens are one of the prevalent stresses to plants. Resistance mediated by the resistance genes is efficient mechanism for evading the pathogens. To understand the influence of various biotic and abiotic factors on resistance gene promoters, plants having N gene promoter fused with reporter genes were developed. Experiments with tobacco plants revealed that on tobacco mosaic virus infection, the N protein may increase in the cells. Also, extreme temperature may result in decrease in the N protein. The salicylic acid produced during the development of systemic acquired resistance does not hi

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29

Sgarzi, Serena. "Environmental and biotic factors influencing the size structure of the aquatic communities in Mediterranean ponds." Doctoral thesis, Universitat de Vic - Universitat Central de Catalunya, 2022. http://hdl.handle.net/10803/673519.

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Les basses mediterrànies són ecosistemes amb un alt valor ecològic, que pateixen una forta regressió per les pressions antròpiques. No obstant això, l'atenció científica rebuda sempre ha estat molt escassa, i la majoria dels estudis ecològics s'han centrat en la seva biodiversitat, més que l'estructura de la mida corporal de les seves comunitats. Les comunitats planctòniques i les poblacions del peix endèmic i amenaçat Aphanius iberus (Valenciennes, 1846) es van analitzar en basses costaneres permanents salobres (Capítol 1 i 2) i en basses temporànies d'aigua dolça (Capítol 3). L'estruc

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30

Corrao, Jason James. "Relationships Between Streamside Management Zone Width and Biotic Communities of Headwater Streams in West Virginia." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/43919.

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The importance of streamside management zones (SMZ) in minimizing the impact of non-point source pollution from silvicultural operations is recognized by the forestry Best Management Practices of most states. However, research concerning the SMZ width and harvesting intensity required to maintain water quality and biotic communities is limited. The goal of this study is to evaluate the efficacy of different SMZ widths and forest harvesting intensities within SMZs, in maintaining the water quality and biotic communities of 22 headwater streams located in the mountains of East-central West Vir

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31

McCollum, Donna s. "LANDSCAPE AND LOCAL INFLUENCES ON THE BIOTIC INTEGRITY OF FISH COMMUNITIES IN OHIO HEADWATER STREAMS." Miami University / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=miami1091819607.

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32

McCliment, Elizabeth. "Phylogenetic and metabolic diversity of microbial communities inhabiting deep-sea hydrothermal ecosystems." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 217 p, 2007. http://proquest.umi.com/pqdweb?did=1397900421&sid=7&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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33

Tungittiplakorn, Waranoot. "Highland cash crop development and biodiversity conservation : the Hmong in Northern Thailand." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0027/NQ36650.pdf.

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34

Clark, O. Grant (Osborne Grant). "Characterization of cyborged ecosystems." Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36567.

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In this thesis, a philosophy and lexicon for the engineering of biosystems are established. The focus is on a specific class of biosystems ( ecocyborgs) created by combining ecosystems and technological Components. This work is part of the EcoCyborg Project, a highly interdisciplinary research program which concerns the development of a general theory for biosystems engineering, with an emphasis on system autonomy as a design goal. In the short term, the objective is to develop computational models and simulations for use in the study of ecocyborgs as representative instances of substantially

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35

Parrott, Lael. "The EcoCyborg project : a model of an artificial ecosystem." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23696.

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A model of an artificial ecosystem has been formulated for use as a tool to investigate the dynamics of autonomous biosystems. The model is part of a composite model of an EcoCyborg which consists of an ecosystem and its control system, both of which are contained inside a cylindrical space station. The objectives of this project were to design a model of the ecosystem, and to develop a method for its creation and implementation within the overall framework of the EcoCyborg Project.<br>The modeling approach that has been adopted for the ecosystem model is individual-based and object-oriented.

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36

DeWire, Deana Ann. "Assessment and potential adjustments to the snow-related algorithms in BIOME-BGC, v. 4.2." CONNECT TO THIS TITLE ONLINE, 2008. http://etd.lib.umt.edu/theses/available/etd-01262009-124733/.

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37

Unger, Irene M. "A multi-dimensional investigation into the effects of flooding on the physical, chemical and biotic properties of riparian soils." Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/5582.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2008.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed June 17, 2009). Vita. Includes bibliographical references.

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38

Manes, Gianluca. "The near-bottom chlorophyll A̲ maximum in Onslow Bay : effects of wave events on benthic microalgae resuspension /." Electronic version (PDF), 2003. http://dl.uncw.edu/etd/2003/manesg/gianlucamanes.pdf.

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39

Kamffer, Dewald. "Community-level effects of fragmentation of the afromontane grassland in the escarpment region of Mpumalanga, South Africa." Connect to this title online, 2004. http://upetd.up.ac.za/thesis/available/etd-11242004-104932.

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40

Tornwall, Brett Matthew. "The role of dispersal networks in structuring biotic communities: A tale of streams and metacommunity theory." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/75004.

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Identifying the processes and mechanisms that govern communities of organisms is the main goal of community ecology. Locally operating mechanisms such as environmental filtering, in which the environment determines what species are found in a given location, as well as regional processes such as dispersal have all been identified as potential drivers of community processes. However, the relative importance of these drivers may vary temporally and spatially. In dendritic stream networks, headwater streams are isolated when compared to more centrally located mainstem stream sections. I investig

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O'Connor, Rory Charles. "Small Mammals Matter? Linking Plant Invasion, Biotic Resistance, and Climate Change in Post-Fire Plant Communities." BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/5756.

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The introduction and establishment of exotic species can profoundly alter ecosystems. Two exotic species drastically changing the landscape of deserts in western North America are Bromus tectorum L. and Bromus rubens L. Through the buildup of biomass and slow decomposition rates in deserts these two exotic annual grasses can alter fire regimes that change the plant and animal community dynamics in the ecosystems. To better understand the ecological mechanisms that could restrict or alter the patterns of invasive plant establishment we established a replicated full factorial experiment in the G

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42

Stamp, Jennifer D. "Associations between stream macroinvertebrate communities and surface substrate size distributions." Ohio : Ohio University, 2004. http://www.ohiolink.edu/etd/view.cgi?ohiou1103232587.

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43

McLeod, Rebecca Jane, and n/a. "The roles of key species and functional guilds in facilitating fluxes of organic matter across habitat boundaries in Fiordland." University of Otago. Department of Marine Science, 2008. http://adt.otago.ac.nz./public/adt-NZDU20080505.131451.

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The secondary productivity of communities is inherently influenced by the availability and quality of food resources. Movement of organic matter (OM) across landscapes can connect adjacent systems by providing subsidies of carbon and nutrients, implying that alterations of environments from their natural state may affect the productivity of neighboring food webs. The intact terrestrial and marine environments of Fiordland provide a setting to study linkages between the land and the sea. The first general objective of this study was to determine if large but nutritionally poor (nitrogen-poor, c

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44

Collis, John Trifon. "The sustainable development of Benoa Bay an ecosystem approach /." Waterloo, Ont. : University Consortium of the Environment, 1993. http://books.google.com/books?id=qUkoAAAAMAAJ.

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45

BROWN, JOEL STEVEN. "COEXISTENCE ON A RESOURCE WHOSE ABUNDANCE VARIES: A TEST WITH DESERT RODENTS (PREDATION RISK, FORAGING BEHAVIOR, COMMUNITY STRUCTURE)." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/188178.

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Variability is a universal, but poorly understood, property of ecosystems. A common belief that environmental variability has a destabilizing effect on species coexistence is being challenged by a growing body of theoretical research; variance in resource abundances may actually promote species coexistence. Here, I develop three models which give ecological conditions for coexistence on a single resource. The first considers a resource whose abundance varies seasonally. Coexistence may be possible if there is a tradeoff between foraging efficiency and maintenance efficiency. The first species

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46

MacFarland, Katherine Dana. "Valuation of Ecosystem Services in Trinity County, California." Thesis, University of Oregon, 2010. http://hdl.handle.net/1794/10830.

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xvii, 141 p. A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number.<br>This study considers the role of the forest ecosystem in Trinity County, California's economy. I seek to better understand the natural resource-based economy of a national forest-proximate community by creating a framework that describes the resource flows into and out of Trinity County and guides ecosystem services valuation within the County. Thus, this study examines the monetary benefits that ecosystem functions create through delivery of go

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47

Bissett, Spencer N. "CONSEQUENCES OF VINE INFESTATION: LINKING ABIOTIC INFLUENCES AND BIOTIC INTERACTIONS TO SUCCESSIONAL AND STRUCTURAL CHANGES IN COASTAL COMMUNITIES." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/4018.

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Located at the interfaces of terrestrial and marine environments, coastal habitats are inherently vulnerable to the effects of global change. Barrier island systems in particular serve not only as protective buffers against storm events, but also as sentinel ecosystems for observation of the impacts of sea level rise, and of increasing storm frequency and intensity. In the mid-Atlantic region, shrub thickets of Morella species compose the dominant forest community. The often monospecific nature of these plant community assemblages is advantageous to ecological studies and cross-scale applic

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48

Christian, James Robert. "Modelling studies on a marine plankton community : biological, temporal and spatial structure." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/27859.

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The SELECT model (Frost, 1982) is analyzed, criticized, and extended to embrace new information about the feeding behaviour of copepods and the structure of the planktonic food web in a series of alternative models. Diel variations in photosynthesis, grazing, and predation on copepods (temporal structure) and patchiness of zooplankton and their predators (spatial structure) are modelled in other variants. It is observed that the vertical, temporal, and (horizontal) spatial structure of the planktonic ecosystem are important components of ecosystem models that can not safely be ignored. It is f

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Shinneman, Douglas J. "Determining restoration needs for piñon-juniper woodlands and adjacent ecosystems on the Uncompahgre Plateau, western Colorado." Laramie, Wyo. : University of Wyoming, 2006. http://proquest.umi.com/pqdweb?did=1212779251&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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50

Cordova, Vicente D. "Evaluation of simulation-derived data for estimating biogeochemical processes in a secondary forest biome in southern Indiana." Virtual Press, 2003. http://liblink.bsu.edu/uhtbin/catkey/1265099.

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