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Tesi sul tema "Ecology parasite"

Autore: Grafiati

Pubblicato: 5 ottobre 2024

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1

Prior, Kimberley Faith. "The evolutionary ecology of circadian rhythms in malaria parasites." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/29562.

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Biological rhythms are thought to have evolved to enable organisms to organise their activities according to the Earth’s predictable cycles, but quantifying the fitness advantages of rhythms is challenging and data revealing their costs and benefits are scarce. More difficult still is explaining why parasites that exclusively live within the bodies of other organisms have biological rhythms. Rhythms exist in the development and traits of parasites, in host immune responses, and in disease susceptibility. This raises the possibility that timing matters for how hosts and parasites interact and,

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2

Tompkins, Daniel Michael. "Evolutionary ecology of bird-parasite associations." Thesis, University of Oxford, 1996. http://ora.ox.ac.uk/objects/uuid:a5f5ea19-b799-490b-b738-99ff52df25c1.

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This thesis investigates the ecological determinants of chewing louse (Insecta: Phthiraptera) host-specificity on four species of Malaysian swiftlets (Aves: Apodidae). Influences of host coloniality on louse ecology were also demonstrated, illustrating the dependence which these permanent ectoparasites have on their hosts. Louse collections were made to look for incidences of host-specific lice occurring on the "wrong" host ("straggling"). Straggling was observed, implying that lice disperse among host species. Thus, opportunity for louse dispersal (or lack thereof) does not govern the host-sp

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3

Gregory, Richard D. "Host-parasite interactions : population and community ecology." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.276582.

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4

O'Brien, Chris. "Appreciating the Importance of Parasites: Analyzing and Understanding the Ecology of Parasite-Host Interactions." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/194212.

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There is a growing interest in the nature of parasite-host interactions, the role these relationships play in ecological communities, and how human activities alter these associations. Furthermore, because inference about these interactions is usually gained by methods of statistical hypothesis testing, additional importance should be placed on the analysis and interpretation of parasite-host interactions. In this dissertation I address these ideas in three separate but interrelated studies with the three following questions: 1) How do two parasites with complex life-cycles alter the behavi

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5

Mahmud, Muayad Ahmed. "Evolutionary ecology of virulence in a fish parasite." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/32945/.

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Virulence (parasite- induced host fitness reduction) is thought to correlate positively with pathogen reproduction rates, but its relationship with pathogen transmission is likely to be determined by a trade- off between the costs and benefits of harming hosts. This project aims to investigate factors which affect host-parasite interactions and particularly those which may play a role in virulence evolution. In doing so, it describes experiments carried out using a monogenean ectoparasitic flatworm (Gyrodactylus arcuatus) and its three-spined stickleback (Gasterosteus aculeatus) host. Populati

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6

Lynsdale, Carly L. "Evolutionary ecology of parasite infection in Asian elephants." Thesis, University of Sheffield, 2017. http://etheses.whiterose.ac.uk/19058/.

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7

Jackson, M. H. "The epidemiology and ecology of toxoplasmosis." Thesis, University of Strathclyde, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381379.

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8

Keeling, Matthew James. "The ecology and evolution of spatial host-parasite systems." Thesis, University of Warwick, 1995. http://wrap.warwick.ac.uk/30/.

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All ecological and epidemiological systems are embedded in space and composed of individuals; these facts often have a profound effect on the dynamics and means many tools and definitions require reformulation. Modelling has always been about taking highly complex dynamical systems, such as the natural environment, and attempting to simplify them to a leve that can be conceptualised, in the process losing all the features that are not understood or not anticipated. The individual based spatial models which form the basis of this work start from the simple rules for individuals and build up to

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9

Fedna, Jimmy. "Prévalence du parasite Angiostrongylus cantonensis en Haïti chez les rats et gastéropodes." Electronic Thesis or Diss., Bourgogne Franche-Comté, 2024. http://www.theses.fr/2024UBFCD017.

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Ma recherche examine la prévalence et la répartition du parasite Angiostrongylus cantonensis en Haïti, également connu sous le nom de ver pulmonaire du rat, et qui est la première cause de méningite à éosinophiles chez l’homme dans le monde. Ce parasite a un cycle de vie complexe impliquant à la fois des hôtes définitifs (rats) et des hôtes intermédiaires (escargots et les limaces). J’ai documenté l'écologie du parasite et sa persistance deux décennies après sa découverte initiale dans le pays. Trois objectifs ont été fixés : synthétiser les connaissances sur les dimensions spatiales et écolog

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10

Aguirre, Macedo Maria Leopoldina. "Study on helminth and other parasite communities of oysters." Thesis, University of Exeter, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337758.

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11

Carter, Lucy Mary. "Evolutionary ecology of reproductive strategies in malaria parasites." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/9910.

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For vector-borne parasites such as malaria, how within- and between-host processes interact to shape transmission is poorly understood. In the host, malaria parasites replicate asexually but for transmission via mosquitoes to occur, specialized sexual stages (gametocytes) must be produced. Once inside the mosquito vector, gametocytes immediately differentiate into male and female gametes, and motile male gametes must swim through the hostile environment of the bloodmeal to find and fertilise female gametes. Despite the central role that gametocytes play in disease transmission, explanations of

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12

Pereira, Felipe Bisaggio. "Estrutura da comunidade de helmintos associados ao lagarto Tropidurus torquatus (Squamata: Tropiduridae) em uma área de afloramento rochoso no distrito de Toledos, Juiz de Fora, MG." Universidade Federal de Juiz de Fora (UFJF), 2010. https://repositorio.ufjf.br/jspui/handle/ufjf/3017.

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Submitted by Renata Lopes (renatasil82@gmail.com) on 2016-12-16T12:33:44Z No. of bitstreams: 1 felipebisaggiopereira.pdf: 1115383 bytes, checksum: c4128dd85e239865ce346d0569b37b98 (MD5)<br>Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2016-12-19T12:34:46Z (GMT) No. of bitstreams: 1 felipebisaggiopereira.pdf: 1115383 bytes, checksum: c4128dd85e239865ce346d0569b37b98 (MD5)<br>Made available in DSpace on 2016-12-19T12:34:46Z (GMT). No. of bitstreams: 1 felipebisaggiopereira.pdf: 1115383 bytes, checksum: c4128dd85e239865ce346d0569b37b98 (MD5) Previous

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13

Lello, Joanne. "The community ecology of rabbit (Oryctolagus cuniculus) parasites." Thesis, University of Stirling, 2003. http://hdl.handle.net/1893/25418.

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This thesis investigates aspects of the community ecology of rabbit parasites with particular emphasis upon the gut helminths, utilising a 23 (later extended to 26) year time series of rabbits and their parasites. A clearer understanding of parasite communities can lead to more effective biological control strategies. Rabbits are regarded as a serious pest species throughout Europe and the Antipodes and the use of the myxomatosis virus, as a biological control agent, has already been tried and failed. However, a clearer picture of the parasite community may offer future possibilities for contr

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14

STRONA, GIOVANNI. "Investingating the relationships between fish parasites and their hosts: an ecological approach." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2010. http://hdl.handle.net/10281/10932.

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Fish parasite assemblages from different areas and environments were examined in search for significant patterns related to parasite host specificity. Ecological niche models were used to test the relevance of ecological factors in the qualitative determination of the parasite species assemblages on host species. The host/parasite cospeciation paradigm was discussed, with the proposal of a theoretical framework aimed to integrate the role of coevolutionary and ecological factors in the determination of parasite host range. Host specificity was investigated through different statistical techniq

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15

Berry, Katharine M. "The role of parasites in the invasion ecology of Harmonia axyridis." Thesis, University of Stirling, 2017. http://hdl.handle.net/1893/27336.

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The success of an invasive alien species is often attributed to the ecological advantage gained from natural enemy release. Numerous factors have been suggested as contributing to the success of Harmonia axyridis as an invasive alien species, including enemy release. This thesis studied the interactions of several parasites with H. axyridis, investigating parasite transmission, growth and virulence as well as host immune responses, thereby shedding light on the potential role of enemy release in the invasion biology of this ladybird. Benefits gained by invasive alien species from enemy release

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16

Tseng, Michelle. "Virulence ecology and evolution in a mosquito and its protozoan parasite." [Bloomington, Ind.] : Indiana University, 2005. http://wwwlib.umi.com/dissertations/fullcit/3204298.

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Thesis (Ph.D.)--Indiana University, Dept. of Biology, 2005.<br>Source: Dissertation Abstracts International, Volume: 67-01, Section: B, page: 0059. Adviser: Curtis Lively. "Title from dissertation home page (viewed Feb. 21, 2007)."

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17

Hutchence, Katherine Jane. "The evolutionary ecology of host-parasite interactions between drosophila and spiroplasma." Thesis, University of Liverpool, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.548770.

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18

Brickle, Paul. "The parasite ecology of the Patagonian toothfish (Dissostichus eleginoides Smitt, 1898)." Thesis, University of Aberdeen, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.425070.

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In this study the parasites of the Patagonian toothfish were examined from the Patagonian Shelf and the Southern Ocean. The study presents a catalogue and reviews the parasites recovered. Only 21.6% of the parasite fauna is specific to <i>D. eleginoides</i> and it is infected with many generalist species which infect some of the fish on which it preys upon and are likely to be directly transferred from predator to prey, this feature appears to be characteristic of predatory fish species. On the Patagonian Shelf a total of 27 parasite taxa were recorded and this diverse fauna was comparable

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19

Ferreira, Susana Carolina Martins. "Parasite ecology in spotted hyena in Serengeti National Park in Tanzania." Master's thesis, Universidade de Lisboa. Faculdade de Medicina Veterinária, 2015. http://hdl.handle.net/10400.5/10191.

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Dissertação de Mestrado Integrado em Medicina Veterinária<br>Allostatic load is the energetic cost required to maintain homeostasis. A significant increase in allostatic load which cannot be fulfilled by increased food intake would be expected to result in resource allocation trade-offs, i.e., reduced allocation of resources to one life-process so that allocation of resources to another, more critical process can be maintained. In young animals, maintenance of growth is essential, and when food intake is insufficient, other life processes such as components of the immune system may be down reg

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20

Blunt, Sarah Jane. "The ecology of Polymyxa betae, a fungal root parasite of Beta vulgaris." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316297.

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21

Nie, Pin. "Ecology of the Helminth parasites of the eel Anguilla anguilla in Devon." Thesis, University of Exeter, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253542.

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22

Smar, Matt. "The ecology of Protocalliphora (Diptera:Calliphoridae) parasitism of two cavity nesting passerine birds in southwestern Québec." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22806.

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The ecology of Protocalliphora parasitism was studied for a two-year period in two species of cavity nesting passerine birds breeding in southwestern Quebec, the eastern bluebird (Sialia sialis Linnaeus) and the tree swallow (Tachycineta bicolor Vieillot). Both species occupied next boxes in open field habitats. Nests were parasitized primarily by Protocalliphora sialia Shannon and Dobroscky.<br>The relationship between the number of Protocalliphora larvae per nest and selected nesting variables was examine for the two species. The variables included hatching date of the host young, nest mater

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23

Barker, Elizabeth Rachel. "Growth and carbon relations of the tomato-Orobanche aegyptiaca host-parasite association." Thesis, University of Sheffield, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265912.

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24

Vogwill, Tom. "The ecology and evolution of host-parasite interactions in spatially structured populations." Thesis, University of Liverpool, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.533910.

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25

Ferguson, Heather M. "The ecology and evolutionary implications of malaria parasite virulence in mosquito vectors." Thesis, University of Edinburgh, 2002. http://hdl.handle.net/1842/14838.

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A laboratory study with the rodent malaria parasite <i>P. chabaudi </i>and <i>A. stephensi</i> vector indicated that mosquito morality varied with parasite genotype, infection diversity and nutrient availability. In standard conditions, mixed clone infections were the most lethal, but when glucose water was limited, mortality was highest in mosquitoes infected with CR. A second experiment showed that under standard conditions, mixed infections also had the greatest impact on vector fecundity. The virulence of mixed infections could not be explained by parasite load, nor their rate of resource

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26

Dunlop, Judy. "The ecology and host parasite dynamics of a fauna translocation in Australia." Thesis, Dunlop, Judy (2015) The ecology and host parasite dynamics of a fauna translocation in Australia. PhD thesis, Murdoch University, 2015. https://researchrepository.murdoch.edu.au/id/eprint/29146/.

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Despite the frequency of fauna translocations as a technique to improve the conservation status of threatened species, new populations frequently fail to establish. Translocations often lack experimental manipulation to determine ‘best practice’ methods to improve success. One poorly understood element of translocation science is the impact of parasites and disease-‐causing pathogens on the animals moved and the ecosystem they are moved into. Of 58 published Australian translocations in the last 40 years, only 20 (35%) employed any level of parasite management, despite potential contribution

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27

Seibert, Sara Rose. "Host-parasite interactions: comparative analyses of population genomics, disease-associated genomic regions, and host use." Wright State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=wright1590585260282244.

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28

Coon, Courtney A. c. "Host-Parasite Interactions in an Invasive Songbird." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5004.

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Introduced species are the greatest threat to biodiversity after habitat loss. Understanding the processes that permit organisms to become successful invaders may provide opportunities to prevent or limit their dispersal and establishment and thereby alleviate some of their harmful effects. The goal of my dissertation research has been to investigate whether invasive species have distinctive interactions with parasites, and some of the mechanisms that may underlie that variation. I used one of the world's most successful vertebrate invaders as a case study: the house sparrow (Passer domesticus

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29

Chandler, Mark. "The evolutionary ecology of parasitism in relation to recombination in a neotropical community of anurans." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=39826.

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The rate of recombination and parasite load of species of anuran from Peruvian Amazonia were examined to test the idea that recombination functions to diversify progeny in order to resist the continual counter-adaptation of parasites. The anurans were found to be hosts to over 32 species of macroparasite, as well as a wide variety of protistan and moneran parasites. It was found that a combination of three variables (diet, habitat, abundance), together with host body size accounted for a substantial proportion of the variation in mean parasite richness and parasite species distribution among h

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30

Leung, Tommy Ling Fong, and n/a. "Interspecific and intraspecific interactions of trematodes parasitising the New Zealand cockle Austrovenus stutchburyi." University of Otago. Department of Zoology, 2008. http://adt.otago.ac.nz./public/adt-NZDU20090105.160127.

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Most organisms are rarely infected with just a single species of parasite and are usually simultaneously infected with a range of species. Thus, the parasite fauna of a host represents an entire community composed of multiple individuals from many different species. In nature, it is within the host that parasites can encounter conspecifics and individuals from other species. As in any ecosystem, while such interactions between parasites can be antagonistic due to competition or conflicting interests, association between different species can also be beneficial. In this thesis, I investigated

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31

Magee, Catherine Anne. "Host-parasite interactions : the ecology and neurobiology of helminth infections in Apodemus sylvaticus (L.)." Thesis, Queen's University Belfast, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359113.

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32

Northover, Amy Susan. "The ecology of parasite transmission during fauna translocations: Observations from the woylie (Bettongia penicillata)." Thesis, Northover, Amy Susan (2019) The ecology of parasite transmission during fauna translocations: Observations from the woylie (Bettongia penicillata). PhD thesis, Murdoch University, 2019. https://researchrepository.murdoch.edu.au/id/eprint/45922/.

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Fauna translocations play a pivotal role in the management of threatened wildlife, though we are limited by our understanding of how the host-parasite community changes during translocation and in response to antiparasitic drug treatment. This project aimed to quantify changes in parasite community structure and host health in woylies following translocation, and in response to ivermectin treatment. This is the first study to evaluate changes to the broader parasite community in translocated and resident animals following translocation. During two fauna translocations to three different locati

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33

Koskella, Britt L. "An examination of host-parasite coevolution and negative frequency-dependent selection in a snail-trematode system." [Bloomington, Ind.] : Indiana University, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3331252.

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Thesis (Ph.D.)--Indiana University, Dept. of Biology, 2008.<br>Title from PDF t.p. (viewed on Jul 27, 2009). Source: Dissertation Abstracts International, Volume: 69-11, Section: B, page: 6617. Adviser: Curt M. Lively.

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McLeish, Jenny. "Non-native bullhead in Scotland : molecular and morphological identification and parasite links with native fauna." Thesis, Edinburgh Napier University, 2018. http://researchrepository.napier.ac.uk/Output/1253308.

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The arrival of a non-native species to has the potential to shape native communities by influencing ecological interactions such as predation, foraging, competition and disease transfer. A designation of invasive is applied to an introduced non-native species that has the potential to threaten the continued wellbeing of a native species, pose a risk to human health or negatively impact the economy. The European bullhead (Cottus perifretum) is a freshwater benthic-dwelling fish that is native to England but considered invasive in Scotland. The species was first reported in Scotland in the 1950'

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35

Muzaffar, Sabir Bin. "Ectoparasites of auks (Alcidae) at the Gannet Islands, Labrador, diversity, ecology and host-parasite interactions." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0015/MQ55531.pdf.

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36

Shaw, Jennifer Lyn. "Epidemiology of the caecal threadworm Trichostrongylus tenuis in red grouse (Lagopus lagopus scoticus Lath.)." Thesis, University of Aberdeen, 1988. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU010263.

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The prevalence of Trichostrongylus tenuis in red grouse was high and the distribution of parasites in their hosts highly aggregated. The prevalence and intensity of threadworms were greater in old birds than in young ones. There was no relationship between the body condition of individual grouse and their burden of adult worms. On the moor, T. tenuis eggs did not develop to third-stage infective larvae during the winter. In the summer, when development did occur, yields of third-stage larvae were dependent on temperature. Third-stage larvae moved laterally through the heather but were relative

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37

Bouillon, Daniel Richard. "Ecology of the Arctic charr (Salvelinus alpinus) in northern Labrador with reference to their parasite faunas." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63309.

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38

Allen, Geoffrey Rowland. "Behaviour and ecology of the primary parasitoids Cotesia urabae and Dolichogenidia eucalypti (Hymenoptera: Braconidae) and their host Uraba lugens (Lepidoptera: Noctuidae)." Title page, contents and preface only, 1989. http://web4.library.adelaide.edu.au/theses/09PH/09pha425.pdf.

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Kosciuch, Karl L. "Host-parasite interactions on an experimental landscape." Diss., Manhattan, Kan. : Kansas State University, 2006. http://hdl.handle.net/2097/186.

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Garnier, Romain. "Ecologie évolutive de la transmission maternelle d'anticorps." Thesis, Montpellier, SupAgro, 2011. http://www.theses.fr/2011NSAM0045/document.

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Chez les vertébrés, la réponse immunitaire acquise représente un mécanisme sophistiqué de réponse face aux parasites dont l‟une des particularités est la possibilité qu‟il offre aux mères de transférer certains de ses effecteurs à leurs nouveau-nés. Pourtant, malgré un intérêt croissant pour les effets maternels, les déterminants écologiques et évolutifs du transfert d‟anticorps maternels n‟ont pas encore été beaucoup étudiés. L‟analyse d‟un cadre théorique spécialement développé pour inclure le transfert transgénérationnel d‟immunité montre que l‟évolution de la capacité à transférer une immu

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Cecile, Anna Sarabian. "Exploring the origins of disgust: Evolution of parasite avoidance behaviors in primates." Kyoto University, 2019. http://hdl.handle.net/2433/242653.

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付記する学位プログラム名: 霊長類学・ワイルドライフサイエンス・リーディング大学院<br>Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(理学)<br>甲第21615号<br>理博第4522号<br>新制||理||1649(附属図書館)<br>京都大学大学院理学研究科生物科学専攻<br>(主査)准教授 Andrew MacIntosh, 教授古市剛史, 教授髙井正成<br>学位規則第4条第1項該当

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Schneider, Lea Dominique. "Conservation ecology of the thick-shelled river mussel Unio crassus : The importance of parasite-host interactions." Doctoral thesis, Karlstads universitet, Institutionen för miljö- och livsvetenskaper, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-47636.

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Unionoid mussels are globally threatened and their conservation requires species-specific knowledge on their ecology and parasite-host interaction. Unio crassus is one of Europe’s most threatened unionoid species and has a temporary obligate parasitic life stage (glochidia) on fish. A lack of suitable hosts is probably a major limitation for mussel recruitment, but host species composition, suitability and availability in time and space have yet to be fully explored. This thesis examines different aspects of the host fish species, including their composition, suitability and ecological importa

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Watson, Harold. "The ecology and pathology of Trichostrongylus tenuis (Nematoda), a parasite of red grouse (Lagopus lagopus scoticus)." Thesis, University of Leeds, 1988. http://etheses.whiterose.ac.uk/9171/.

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Trichostrongylus tenuis is a nematode that lives in the caeca of wild red grouse. It causes disease in red grouse and can cause fluctuations in grouse pop ulations. The aim of the work described in this thesis was to study aspects of the ecology of the infective-stage larvae of T.tenuis, and also certain aspects of the pathology and immunology of red grouse and chickens infected with this nematode. The survival of the infective-stage larvae of T.tenuis was found to decrease as temperature increased, at temperatures between 0-30 C? and larvae were susceptible to freezing and desiccation. The li

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Rasch, Jennifer A. "Reproductive Ecology and Sexual Biology of the Seagrass Shrimp Ambidexter symmetricus (Caridea| Processidae) and its Isopod Parasite Urobopyrus processae (Bopyroidea| Bopyridae)." Thesis, University of Louisiana at Lafayette, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10002449.

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<p> The purpose of the current study was to analyze the reproductive ecology and sexual system in <i>Ambidexter symmetricus,</i> a nxocturnal seagrass shrimp and its parasite <i>Urobopyrus processae.</i> (Abstract shortened by UMI.)</p>

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45

Simpson, Lunden A. "Carcinonemertes conanobrieni| A Nemertean Parasite Infecting the Caribbean Spiny Lobster, Panulirus argus| Species Description, Host-Use, and Effect on Host Reproductive Health." Thesis, Clemson University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10816034.

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<p> Marine ecosystems are one of the world’s most heavily used and valuable natural systems. However, over the past decades, they have seen changes in the oceans’ pH, temperature, salinity, and other abiotic factors - all of which appear to have impacted the health of these systems, and there seems to be a global trend indicating that diseases in marine environments are emerging at an increased rate. Infection by a disease can result in a variety of negative effects on the health of a host, all of which are especially relevant in instances where commercially important hosts are inf

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46

Vieira, Vivian Suane de Freitas. "Metazo?rios parasitos de Pimelodus spp. e estrutura da comunidade parasit?ria de Pimelodus maculatus (Siluriformes: Pimelodidae) coletados em duas bacias hidrogr?ficas do Brasil." Universidade Federal Rural do Rio de Janeiro, 2016. https://tede.ufrrj.br/jspui/handle/jspui/1199.

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Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2016-09-14T11:46:46Z No. of bitstreams: 1 2011 - Vivian Suane de Freitas Vieira.pdf: 2001045 bytes, checksum: 2cce4947186746927e3f6cc35826b411 (MD5)<br>Made available in DSpace on 2016-09-14T11:46:46Z (GMT). No. of bitstreams: 1 2011 - Vivian Suane de Freitas Vieira.pdf: 2001045 bytes, checksum: 2cce4947186746927e3f6cc35826b411 (MD5) Previous issue date: 2016-01-20<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES<br>A list of metazoan species associated to Pimelodus Lac?p?de, 1803 genus has been prepared in this

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47

Zemmer, Sally A. "Trematode Communities of the Appalachian Stream Snail, Elimia proxima: the Importance of Scale in Parasite Ecology Research." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/82832.

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Understanding the ecological processes that impact parasite abundance and distribution is critically important for epidemiology and predicting how infectious disease dynamics may respond to future disturbance. Digenean trematodes (Platyhelminthes: Trematoda) are parasitic flatworms with complex, multi-host life cycles that include snail first-intermediate hosts and vertebrate definitive hosts. Trematodes cause numerous diseases of humans (e.g. schistosomiasis) and livestock (e.g. fascioliasis), and impact the ecology of wildlife systems. Identifying the ecological mechanisms that regulate t

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Skelton, James. "Towards an understanding of symbiont natural history through studies of crayfish and their annelid associates." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/51663.

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Crayfish throughout North America, Europe, and Asia host assemblages of obligate ectosymbiotic annelid worms called branchiobdellidans. The work presented here is a detailed experimental and observational study of the ecological interactions between crayfish and their worms. In a comprehensive literature review, I show that branchiobdellidans have complex and context-dependent effects on their hosts, serving as both beneficial cleaners and tissue-consuming parasites. Using a field survey and laboratory experiments, I provide novel evidence for age-specific resistance as an adaptation to maximi

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August, Thomas Adam. "The social structure, ecology and pathogens of bats in the UK." Thesis, University of Exeter, 2012. http://hdl.handle.net/10036/4341.

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This thesis examines the ecology, parasites and pathogens of three insectivorous bat species in Wytham Woods, Oxfordshire; Myotis nattereri (Natterer’s bat), M. daubentonii (Daubenton’s bat) and Plecotus auritus (Brown long-eared bat). The population structure was assessed by monitoring associations between ringed individuals, utilising recent advances in social network analysis. Populations of both M. daubentonii and M. nattereri were found to subdivide into tight-knit social groups roosting within small areas of a continuous woodland (average minimum roost home range of 0.23km2 and 0.17km2 r

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Ortega, Nicole. "Flames and Frogs – The Impact of Environmental Disturbances on Host-Parasite Dynamics." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7640.

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The successful completion of this work is dedicated first to my grandparents for having always shown their unwavering love and encouragement in my journeys (most of which they kindly and politely only pretended to understand) and for having also served as life-long role models who upheld an unparalleled work ethic. To many whom I consider to be my chosen family, especially Ann Williams and Brittany Sears, who kept me laughing, but more importantly, kept my crazy train from derailing during these tumultuous years. To Wayne Price and Tom Jackman, who fostered the success of my career and are t

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