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Dissertations / Theses on the topic 'Prey'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Sun, Jing. "Prey." Thesis, California State University, Los Angeles, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10787932.

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<p> The primary purpose of my research is to visually represent what can be regarded as a traditional Chinese thinking system and artistic style. This is to gain a deeper understanding of typical problem-solving processes of the Chinese culture. Through this research, I intend to encourage a bridge of communication between American and other cultures. It is my intent to help analyze problem-solving traditions in Chinese culture, and present a narrative that dramatizes this. The goal of this thesis; therefore, is to give a path of connection and appreciation for those not familiar, to a deeper

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2

Martin, Annik. "Predator-prey models with delays and prey harvesting." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0016/MQ49407.pdf.

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3

Quinones, Paige Valentine. "The Best Prey." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461176139.

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4

Kirkland, Shauna. "Birds of Prey." VCU Scholars Compass, 2013. http://scholarscompass.vcu.edu/etd/3019.

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As a child growing up, I was always in love with the ritual of “dress up”. Whether it was my dolls, various reluctant pets, or myself, it was always an activity I loved. It is not surprising then that adornment has become the medium through which I express myself and bring my fantasy world to life. Jewelry and accessory have the potential to lead many lives. One particular piece can change entirely by putting it on one body as opposed to another, or by removing it to see it as an object. In fashion, the body is the canvas and the runway becomes the moment of performance. My work uses the bo

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5

Miner, Jeffrey G. "Turbidity-mediated predator-prey interactions among piscivores, prey fishes, and zooplankton /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487685204970099.

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6

Rosner, Tammy Dee. "Spatial predator-prey dynamics, the effect of prey movement and environmental heterogeneity." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ38608.pdf.

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7

Kato, Motomi. "Effects of enrichment on one-predator-two-prey systems with different prey profitability." 京都大学 (Kyoto University), 2001. http://hdl.handle.net/2433/86465.

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8

Lindström, Torsten. "Predator-prey systems and applications." Licentiate thesis, Luleå tekniska universitet, 1991. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-25928.

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9

Liu, Shouzong. "AGE-STRUCTURED PREDATOR-PREY MODELS." OpenSIUC, 2018. https://opensiuc.lib.siu.edu/dissertations/1577.

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In this thesis, we study the population dynamics of predator-prey interactions described by mathematical models with age/stage structures. We first consider fixed development times for predators and prey and develop a stage-structured predator-prey model with Holling type II functional response. The analysis shows that the threshold dynamics holds. That is, the predator-extinction equilibrium is globally stable if the net reproductive number of the predator $\mathcal{R}_0$ is less than $1$, while the predator population persists if $\mathcal{R}_0$ is greater than $1$. Numerical simulations are

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10

Reif, V. (Vitali). "Birds of prey and grouse in Finland:do avian predators limit or regulate their prey numbers?" Doctoral thesis, University of Oulu, 2008. http://urn.fi/urn:isbn:9789514288050.

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Abstract Relationships between predators and prey may affect population dynamics of both parties. Predators may also serve as a link between populations of different prey, e.g., small game and small mammals. I used available data on the diet and reproduction of birds of prey (mainly common buzzards Buteo buteo and goshawks Accipiter gentilis) and video surveillance of their nests, as well as multiannual data on numbers of grouse and small mammals for studying food habits and population dynamics of raptors and their links with population fluctuations of voles and grouse (capercaillie Tetrao uro

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11

Clements, Hayley Susan. "Incorporating prey demographics and predator social structure into prey selection and carrying capacity estimates for cheetah." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1018606.

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There is a need for a refined understanding of large carnivore prey preference and carrying capacity (K). To date, K estimates for large carnivores have been developed from predictions of carnivore diet at a prey and predator species-level. These predictions therefore assume that all social classes within a carnivore species display similar prey preferences and that all demographic classes within a prey species are equally preferred or avoided. The objective of this study was to investigate the importance of including prey demographics and carnivore social class in carnivore diet descriptions

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12

Gourley, Stephen Alexander. "Nonlocal effects in predator prey systems." Thesis, University of Bath, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332378.

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13

May, Celia A. "VNTR studies of birds of prey." Thesis, University of Nottingham, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358003.

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14

Brighton, Caroline. "Attack strategies in birds of prey." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:4e8afdec-3b7b-43b1-a693-166d114c827f.

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Pursuit behaviours are vital in predator-prey interactions and in courtship for many flying animals. Existing research on target-directed flight behaviours in insects, birds and bats has aimed at identifying simple geometric rules describing the pursuit-flight trajectories. However, these geometric rules are only part of the picture as they only consider the outcome of the commanded changes in flight kinematics, and not the underlying guidance laws (dynamics) which generate these commands. To intercept a target, a pursuer implements a guidance law using sensory feedback to determine the requir

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15

Chrobok, Viktor. "Harvesting in the Predator - Prey Model." Master's thesis, Vysoká škola ekonomická v Praze, 2009. http://www.nusl.cz/ntk/nusl-10510.

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The paper is focused on the Predator-Prey model modified in the case of harvesting one or both populations. Firstly there is given a short description of the basic model and the sensitivity analysis. The first essential modification is percentage harvesting. This model could be easily converted to the basic one using a substitution. The next modification is constant harvesting. Solving this system requires linearization, which was properly done and brought valuable results applicable even for the basic or the percentage harvesting model. The next chapter describes regulation models, which coul

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16

Johannesen, Asa. "Predator-prey interactions in aquatic environments." Thesis, University of Leeds, 2013. http://etheses.whiterose.ac.uk/7556/.

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In the first half of this thesis, I have focused on predator ability to locate prey using olfaction and how prey aggregation and turbulence affect prey detection. In chapter 2 I investigate the ability of three spined sticklebacks to compensate for loss of visual cues by using olfaction and find that they can use olfactory cues but that these most likely help the fish detect prey rather than locate prey. In chapter 3 I explore the effect of prey aggregation as an anti-predator strategy when avoiding an olfactory predator and find that aggregated prey survive longer than do dispersed prey. In o

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17

Shek, Lok Lun. "Oxygen consumption rate of copepod fecal pellets : variations among copepod species, prey types and prey nutritional values /." View abstract or full-text, 2010. http://library.ust.hk/cgi/db/thesis.pl?ENVR%202010%20SHEK.

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18

Becker, Matthew Smith. "Applying predator-prey theory to evaluate large mammal dynamics wolf predation in a newly-established multiple-prey system /." Thesis, Montana State University, 2008. http://etd.lib.montana.edu/etd/2008/becker/BeckerM1208.pdf.

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I studied wolf prey selection and kill rates during 1996-97 through 2006-07 winters in a newly established two-prey system in central Yellowstone National Park. Prey differed substantially in their vulnerability to wolf (Canis lupus) predation and wolves preyed primarily on elk (Cervus elaphus) but also used bison (Bison bison) to varying degrees within and among winters and packs. Winter severity, wolf abundance, distribution, and prey selection varied during the study, concurrent with variations in the demography, distribution, and behavior of elk and bison. A total of 759 wolf-killed ungula

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19

Cresswell, Will. "Wintering raptors and their avian prey : a study of the behavioural and ecological effects of predator-prey interactions." Thesis, University of Edinburgh, 1993. http://hdl.handle.net/1842/14744.

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Raptor predation was studied by direct observation of sparrowhawks, peregrines, and merlins, hunting a known prey population, and subsequent recovery of kills. Raptor predation was shown to be the most significant cause of mortality in most wader species. Kleptoparasitism of raptors carrying prey, by carrion crows, significantly increased the over winter mortality of some waders. Redshank populations were most affected by raptor predation; over 50% of the total population and over 90% of the juvenile population were taken in two winters. No selection for body size in redshank was found, but ju

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20

Cantryll-Stewart, Ricki. "A discernment of prey selection by the ancient Maya : white-tailed deer (Odocoileus virginianus) : pest, prey, or domesticate." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/50198/.

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This thesis investigates the demographics of paleo-populations of white-tailed deer (Odocoileus virginianus) as a means of testing the hypothesis that this species was domesticated or managed as a vital cultural and economic resource by the ancient Maya in Mesoamerica. To do so it employs a set of standardized bone measurements derived from a modern population and compares them with 1100 deer bone samples recovered by archaeologists from Maya sites dating from 450 B.C. to the late 16th century. These measurements were also applied to modern white-tailed deer specimens representing a discrete p

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21

Johansson, Markus, and Martin Torstensson. "Hostile Takeovers : The Power of the Prey." Thesis, Jönköping University, JIBS, Business Administration, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-1321.

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<p>Takeovers are used as a mean for companies to grow and gain entry to new markets. Hos-tile takeovers, apart from the friendly takeovers, is when an acquirer tries to takeover a corporation against the will of management, shareholders and board of directors of the target company. All listed companies run the risk of being a target for a hostile takeover, and to-day many companies are trying to involve actions protecting them from possible threats. Lacking protection can evolve into a costly defense program with actions with fictitious names such as White knight, Pac-man and Poison pills. The

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22

Supriatna, Asep K. "Optimal harvesting theory for predator-prey metapopulations /." Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phs959.pdf.

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23

Van, Leeuwen Edwin. "Mathmatical Modelling of Predator-Multiple Prey Interactions." Thesis, Royal Holloway, University of London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.499202.

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24

Lerner, Thomas Ryan. "Modification of prey peptidoglycan by Bdellovibrio bacteriovorus." Thesis, University of Nottingham, 2012. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.631749.

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25

Siekmann, Ivo. "Mathematical modelling of pathogen-prey-predator interactions." München Verl. Dr. Hut, 2009. http://d-nb.info/99326039X/04.

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26

Davison, Bruce. "Raptor communities in hill habitats in south-eastern Zimbabwe." Thesis, Rhodes University, 1998. http://hdl.handle.net/10962/d1005438.

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The interrelationships between species composition, resource-use and availability, breeding and competition were studied in two hill habitat raptor communities in a conserved reserve and an unprotected communal land in Zimbabwe in 1995 and 1996. The conserved Lonestar Study Area (LSA) and the unprotected Communal Land Study area (CLSA) had 38 and 31 raptor species, high and normal diversities for the area sizes respectively. An estimated 147 pairs of 21 raptor species bred in 40km² in the LSA compared to only 26 pairs of 22 raptor species per 40km² in the CLSA. Six species (African Hawk Eagle

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27

London, Josh M. "Harbor seals in Hood Canal : predators and prey /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/5394.

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28

Garza, Mark Isaac. "Predator induced defenses in prey with diverse predators." Texas A&M University, 2005. http://hdl.handle.net/1969.1/3309.

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Phenotypic plasticity is an environmentally based change in phenotype and can be adaptive. Often, the change in an organism's phenotype is induced by the presence of a predator and serves as a defense against that predator. Defensive phenotypes are induced in freshwater physid snails in response to both crayfish and molluscivorous fish. Alternative morphologies are produced depending on which of these two predators snails are raised with, thus protecting them from each of these predators' unique mode of predation. Snails and other mollusks have been shown to produce thicker, differently shaped

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29

Huggard, David John. "Prey selectivity of wolves in Banff National Park." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/29880.

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The functional response of wolves to changes in the abundance of their prey must be understood to manage wolf-ungulate systems, but is difficult to measure directly. In this study, behavioral and environmental components of wolf predation were assessed and used to predict features of the dynamics of the wolf-large ungulate system in Banff National Park, Alberta. Elk were the most abundant ungulate, while white-tailed deer, mule deer, bighorn sheep, mountain goats, moose and several non-ungulate species provided a diverse prey base. Two packs of wolves were followed using radio-telemetry and s

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30

Pupovac-Velikonja, Ankica. "Environmental factors affecting predator-prey relationships among yeasts." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ39869.pdf.

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31

Daiquin, Li. "Prey preferences of specialized jumping spiders (Araneae : Salticidae)." Thesis, University of Canterbury. Zoology, 1996. http://hdl.handle.net/10092/5867.

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I studied prey preferences of two groups of specialized jumping spiders (Salticidae), ant-eating ('myrmicophagic') species and spider-eating ('araneophagic') species, in the laboratory. Spiders and ants have in common being unusual and dangerous prey for a salticid. Ten salticid species, four species of Portia (P. africana, P. fimbriata, P. labiata and P. schultzi) which specialize at catching other species of spiders (araneophagic species) and six myrmicophagic species (Chalcotropis sp., Habrocestum pulex, Siler sp., Telamonia masinloc, and two new species of euophryines in a new genus) were

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32

Ahlm, Kristoffer. "Prey specialization and diet of frogs in Borneo." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-102020.

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Earlier studies of the diet of frogs indicate that most adult frogs are mainly insectivorous. Overall, frogs are viewed more as generalists than specialists in terms of their diet. However, despite earlier studies, there are still gaps in our knowledge regarding what frogs tend to eat and the degree of specialization. The aim of this study was to investigate the diet choice of frogs in a tropical ecosystem. The present study was conducted in a well-known hotspot for frogs with 66 of the 156 known frog species in Borneo found in a protected area comprising of primary rainforest. Frogs were ca

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33

Watt, Jon. "Prey selection by coastal otters (Lutra lutra L.)." Thesis, University of Aberdeen, 1991. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=128373.

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The thesis investigated the proximate factors affecting selection among different prey types by coastal otters. From a broad description of coastal otter diet, and its relationship to prey availability, the work progressed to a detailed study of the predatory behaviour of individuals and age classes, and thence to the formulation and testing of specific hypotheses regarding prey choice. Spraint analysis showed that the diet of otters in Loch Spelve consisted principally of small, demersal inshore fishes and shore crabs. It was demonstrated that while the frequency of occurrence of most fish sp

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34

Linkie, Matthew. "Tigers, prey loss and deforestation patterns in Sumatra." Thesis, University of Kent, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.405517.

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35

Botham, Marc Stephen. "Prey choice behaviour in three major Trinidadian piscovores." Thesis, University of Leeds, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421976.

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36

Jiang, Bin [Verfasser]. "Predators promote trait diversification in prey / Bin Jiang." Berlin : Freie Universität Berlin, 2018. http://d-nb.info/1169832156/34.

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37

Klepac, Petra. "Interacting populations : hosts and pathogens, prey and predators." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/38995.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 2007.<br>Includes bibliographical references.<br>The interactions between populations can be positive, neutral or negative. Predation and parasitism are both relationships where one species benefits from the interaction at the expense of the other. Predators kill their prey instantly and use it only for food, whereas parasites use their hosts both as their habitat and their food. I am particularly interested in microbial parasites (including bacteria, fungi, viri, and some protozoans) since they cause many infectious dis

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38

Bolohan, Noah. "Seasonal Variation in a Predator-Predator-Prey Model." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40899.

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Seasonal shifts in predation habits, from a generalist in the summer to a specialist in the winter, have been documented for the great horned owl (Bulbo virginialis) in the boreal forest. This shift occurs largely due to varying prey availability. There is little study of this switching behaviour in the current literature. Since season length is predicted to change under future climate scenarios, it is important to understand resulting effects on species dynamics. Previous work has been done on a two-species seasonal model for the great horned owl and its focal prey, the snowshoe hare (Lepus a

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39

Jurcak, Ana M. "Defining the reaction space of predator-prey interactions." Bowling Green State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1521461052087018.

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40

Sogoni, Msimelelo. "The paradox of enrichment in predator-prey systems." University of Western Cape, 2020. http://hdl.handle.net/11394/7737.

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>Magister Scientiae - MSc<br>In principle, an enrichment of resources in predator-prey systems show prompts destabilisation of a framework, accordingly, falling trophic communication, a phenomenon known to as the \Paradox of Enrichment" [54]. After it was rst genius postured by Rosenzweig [48], various resulting examines, including recently those of Mougi-Nishimura [43] as well as that of Bohannan-Lenski [8], were completed on this problem over numerous decades. Nonetheless, there has been a universal none acceptance of the \paradox" word within an ecological eld due to diverse interpr

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41

Halstead, Brian J. "Predator behavior and prey demography in patchy habitats." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002414.

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42

Topham, Eric. "Biodiversity and ecosystem functioning in predator-prey communities." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:c51b2a47-39bc-4b00-a749-5846ed75675d.

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Once regarded as little more than simple model systems, microbial communities are now understood to drive major earth processes and patterns of biodiversity. In order to more fully understand them, there is a need to investigate the mechanisms that determine the structure and function of microbial systems. Predator-prey interactions have been studied for a long time in macroecological systems and are known for their role in determining community structure and dynamics. Functional diversity has come to the fore of ecology to take a central role in understanding what links species to biodiversit

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Lemos, Felipe de. "Spider mite web protects prey and predator alike." Universidade Federal de Viçosa, 2011. http://locus.ufv.br/handle/123456789/3958.

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Made available in DSpace on 2015-03-26T13:30:42Z (GMT). No. of bitstreams: 1 texto completo.pdf: 484977 bytes, checksum: 368d0f7fd7c2f8a96df8c45cef7c69bf (MD5) Previous issue date: 2011-02-22<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Em todo o mundo lavouras de tomate sofrem o ataque de pragas. Uma das principais pragas do tomate é o ácaro vermelho Tetranychus evansi Baker & Pritchard (Acari: Tetranychidae). Uma característica marcante de T. evansi é a sua alta produção de teia sobre suas plantas hospedeiras. Essa teia pode afetar diretamente os inimigos naturais, r

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Glaspie, Cassandra N. "Marine benthic predator-prey interactions and global change." W&M ScholarWorks, 2016. https://scholarworks.wm.edu/etd/1539616667.

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Anthropogenic stressors such as habitat loss, extreme weather events, and acidification can change predator-prey interactions. An understanding of the mechanisms by which these stressors impact predator-prey interactions may elucidate the fate of bivalves in the face of global change. My dissertation research informs management of marine resources in Chesapeake Bay, which has experienced substantial seagrass and oyster reef loss, increased storm activity, and combined estuarine and atmospheric CO2 acidification. In my dissertation, I used field survey data, field caging experiments, laboratory

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45

Murali, Suraj. "Reinforcement Learning for a Hunter and Prey Robot." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-389998.

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The surge in the use of adaptive Artificial Intelligent (AI) systems have been made possible by leveraging the increasing processing and storage power that modern computers are able to provide. These systems are designed to make quality decisions that assist in making predictions in a wide variety of application fields. When such a system is fueled by data, the foundation for a Machine Learning (ML) approach can be modelled. Reinforcement Learning (RL) is an active model of ML going beyond the traditional supervised or unsupervised ML methods. RL studies algorithms to take actions so that the

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46

Go, Dong-Hun. "Three Essays in Economics of Prey-Predator Relation." DigitalCommons@USU, 2018. https://digitalcommons.usu.edu/etd/7031.

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This dissertation explores how natural ecosystem can be integrated with economic system through two case studies of multiple species interactions, or predator-prey relations. By the inclusion of biological, ecological and economic aspects, the integrated approaches aim at more clearly understanding of how regional ecosystem and economy interact with each other, given threats of resource extinction and environmental shock. I also explain strategies and policy regimes that can be considered to achieve efficient and sustainable ecosystem management in those circumstances. The first case study foc

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47

Truemper, Holly A. "Food habits and prey size-selection of yellow perch in extreme southern Lake Michigan, with emphasis on the prey : round goby." Virtual Press, 2003. http://liblink.bsu.edu/uhtbin/catkey/1260485.

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Food habits for yellow perch Perca flavescens were compared using current and previous diet studies from southern Lake Michigan index sites. Yellow perch were not gape limited but size-selective in consumption of the newly established round goby Neogobius melanostomus. Ingested fish ranged from 7 to 47% of the yellow perch's total length and 2 to 53% of their gape. Currently, yellow perch diets are dominated in volume by fish/fish products (85%), which is double from previous studies. Utilization of zooplankton and insect prey items in the yellow perch diet has decreased to <1% by volume in 20

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48

Rowlands, William Llewelyn. "Is prey selection in young gadoids in the Irish Sea limited by gape size or by the spectrum of prey available?" Thesis, University of Liverpool, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.406715.

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49

Dohet, Loïc. "Coevolution in the specific predator-prey system Rhizophagus grandis-Dendroctonus micans: with emphasis on the predator’s oviposition kairomones and prey symbioses." Doctoral thesis, Universite Libre de Bruxelles, 2016. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/232990.

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Rhizophagus grandis is one of the rare examples of totally specific predators: it only preys upon the bark beetle Dendroctonus micans in its native range (Europe and Asia). In the course of coevolution in such predator-prey systems, prey are selected for avoidance and resistance mechanisms against predators. Previous laboratory trials suggested that R. grandis could lay more eggs in presence of exotic prey species with an ecology similar to that of D. micans, but which could not evolve resistances against this predator, such as the North American parasitic bark beetles D. punctatus and D. vale

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50

Nizinski, Martha. "Caribbean spiny lobster and their molluscan prey: Are top-down forces key in structuring prey assemblages in a Florida Bay seagrass system." W&M ScholarWorks, 1998. https://scholarworks.wm.edu/etd/1539616795.

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Relative importance of predator-prey dynamics and several environmental variables in structuring gastropod and bivalve diversity and distribution was investigated in the subtropical seagrass and macroalgal community of Florida Bay, a highly productive system and primary nursery and foraging ground for finfish and invertebrate predators, including the numerically dominant Caribbean spiny lobster, Panulirus argus. The molluscan assemblage, a primary food source for P. argus in particular, is speciose (75 gastropod and 25 bivalve species) and a significant component of epifaunal and infaunal inve

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