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Dissertations / Theses on the topic 'The origin of species (Darwin)'

Author: Grafiati

Published: 27 February 2023

Last updated: 19 July 2025

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1

Duboisée, de Ricquebourg Martin Kevin Michael. "Origin of species or specious origins? : a reformed presuppositional apology to Darwin's origin of species and descent of man / M.K.M. Duboisée de Ricquebourg." Thesis, North-West University, 2010. http://hdl.handle.net/10394/4562.

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Charles Darwin has achieved both notoriety and fame for his evolutionary ideas encapsulated principally in The Origin of Species and The Descent of Man. Although credited for much originality in his writings, Darwin's legacy borrowed extensively from many who had propounded similar speculations centuries before him. His naturalistic argument for origin and species reveals both logical and theological problems with his thesis, and further unavoidable ramifications. The contention is that even Darwin himself could not, and did not, live by the ideas he boldly espoused. His ideas, if true, would

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2

Dias, Vivian Catarina. "A sinfonia da natureza: Charles Darwin e as origens." Pontifícia Universidade Católica de São Paulo, 2015. http://tede2.pucsp.br/handle/handle/2542.

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Made available in DSpace on 2016-04-25T20:21:25Z (GMT). No. of bitstreams: 1 Vivian Catarina Dias.pdf: 16086007 bytes, checksum: 6a5f546b854fa268d7eb63cefb940bd8 (MD5) Previous issue date: 2015-05-04<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Since childhood Charles Darwin showed an interest for the natural world. In his youth he developed that passion into an object of study travelling around the world onboard of The Beagle. The contact with unique species like the ones found in Galapagos Islands, the fossils discovered in South America, the experiences he lived and

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3

Almeida, Filho Enézio Eugênio de. "A natureza das críticas de Mivart ao papel da seleção natural de Darwin na origem das espécies: uma reconsideração histórica da controvérsia." Pontifícia Universidade Católica de São Paulo, 2008. https://tede2.pucsp.br/handle/handle/13405.

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Made available in DSpace on 2016-04-28T14:16:36Z (GMT). No. of bitstreams: 1 Enezio Eugenio de Almeida Filho.pdf: 4288341 bytes, checksum: 6d7c3e5e0f23728ac321058b96f617c8 (MD5) Previous issue date: 2008-10-17<br>Discovery Institute - Center for Science and Culture<br>This research follows the line of History and Theory of Science that has as a goal to explain the construction of scientific thought by discussing the foundation of hypotheses and theories within their historical contexts. The goal of this thesis is to analyze Mivart´s critiques and Darwin´s answers, and to verify if they wer

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4

Castilho, Fernando Moreno. "Concepções evolutivas de Charles Darwin na Origem das espécies (1859) e na Expressão das emoções no homem e nos animais (1872): um estudo comparativo." Pontifícia Universidade Católica de São Paulo, 2010. https://tede2.pucsp.br/handle/handle/13457.

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Made available in DSpace on 2016-04-28T14:16:46Z (GMT). No. of bitstreams: 1 Fernando Moreno Castilho.pdf: 1212881 bytes, checksum: 82b2800cd48eb04a8d3b3f4663ac6d69 (MD5) Previous issue date: 2010-05-21<br>Secretaria da Educação do Estado de São Paulo<br>Among the books written by Charles Robert Darwin (1809-1882) the Origin of species (1859) is the best known. However, in such book he did not deal with man. He had dealt with this subject in two books which were published later: The expression of emotions in man and animals (1872) and The descent of man (1871). This dissertation aims to eluc

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5

Moon, Sangwha. "Dickens in the Context of Victorian Culture: an Interpretation of Three of Dickens's Novels from the Viewpoint of Darwinian Nature." Thesis, University of North Texas, 1996. https://digital.library.unt.edu/ark:/67531/metadc279322/.

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The worlds of Dickens's novels and of Darwin's science reveal striking similarity in spite of their involvement in different areas. The similarity comes from the fact that they shared the ethos of Victorian society: laissez-faire capitalism. In The Origin of Species, which was published on 1859, Charles Darwin theorizes that nature has evolved through the rules of natural selection, survival of the fittest, and the struggle for existence. Although his conclusion comes from the scientific evidence that was acquired from his five-year voyage, it is clear that Dawinian nature is reflected in crue

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6

Seligo, Carlos. "The origin of science fiction in the monsters of botany : Carolus Linnaeus, Erasmus Darwin, Mary Shelley /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/9361.

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7

Borge, Thomas. "Genetics and the Origin of Two Flycatcher Species." Doctoral thesis, Uppsala University, Evolutionary Biology, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3919.

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<p>In this thesis, different genetic tools are used to investigate pre- and postzygotic barriers to gene exchange and their role in speciation in the pied flycatcher (<i>Ficedula hypoleuca</i>) and the collared flycatcher (<i>F. albicollis</i>). This species complex consists of four genetically distinct clades that apparently diverged in allopatry (I). Sequencing of introns from autosomal and Z-linked genes from the two species reveals signs of selection on the Z-chromosome. Sexual selection acting on Z-linked genes might explain this pattern (II). By using large-scale genotyping of single nuc

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Lomax, Charlotte. "Investigating the origin and transport of methylated arsenic species in plants." Thesis, University of Aberdeen, 2013. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=203948.

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Inorganic arsenic is a toxic element known to cause various diseases and cancers in humans. Arsenic contamination is widespread worldwide, particularly in South-East Asia where arsenic-contaminated groundwater is used for drinking and rice cultivation. Unlike other cereals, paddy rice can efficiently accumulate arsenic in the grain. Rice is a staple food for around 50% of the world's population, so arsenic accumulation in rice is of great concern. Arsenite, As(III), is the predominant form of arsenic within plants, but rice grains often contain significant proportions of organic arsenic specie

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9

Whittington, Kate. "Origin and effects of reactive oxygen species (ROS) in human sperm suspensions." Thesis, University of Bristol, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388160.

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10

Ford, Kerry. "Origin and biogeography of New Zealand Craspedia (Compositae: Gnaphalieae)." Thesis, University of Canterbury. Biological Sciences, 2004. http://hdl.handle.net/10092/1741.

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Craspedia (Compositae: Gnaphalieae) is a genus of 23 species found only in Australia and New Zealand. New Zealand species of Craspedia have confusing and continuous character variation, with boundaries between species often indistinct and relationships difficult to elucidate. Taxonomic treatments in the genus so far have been regionally based, with the result that species between New Zealand and Australia have not been adequately compared. Phylogenetic analyses of ITS, ETS and psbA-trnH non-coding spacers show that New Zealand Craspedia is a monophyletic group nested within Australian Crasp

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11

Hassan, Ahdia. "Influence of biogeographic origin and phylogenetic relatedness on the impacts of introduced aquatic species." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=121225.

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Rates of species invasion are rising globally, particularly in freshwater ecosystems. The impacts of only a small fraction of these invasions have been studied, and some have been found to cause substantial ecological and socio-economic damage. Nevertheless, there have been recent claims that the impacts of non-native species have been exaggerated, that native species have an equal propensity to cause damage, and therefore the biogeographic origins of species should not be considered in management decisions. Here, I address these claims by comparing the socio-economic impacts of native and

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12

Gwynn, Lisle. "The identity, origin and impact of a 'new' buzzard species breeding in South Africa." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/15526.

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South Africa is traditionally known to play host to two taxa of small Buteo, the endemic and uncommon Forest Buzzard B. trizonatus, and Steppe Buzzard B. b. vulpinus, an abundant Palearctic migrant. Since the late 1970s and early 1980s, a number of buzzards appearing unlike B. trizonatus have been found breeding in the south-west Cape, particularly on the Cape Peninsula and in and around the Elgin Valley, ca.60km east of Cape Town. Some of these buzzards resemble B. b. vulpinus, whilst others appear atypical of both B. trizonatus and B. b. vulpinus. This study conducted genetic and morphologic

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13

Tabata, Ryouichi. "The origin, history and mitogenome evolution of fishes in Lake Biwa." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215345.

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14

Metzger, Colleen M. "Cross-Temporal Analysis of Genetic Diversity in the Endangered Medium Tree Finch (Camarhynchus pauper) and Closely Related Darwin's Finches." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1380620079.

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15

Hench, Kosmas [Verfasser], Oscar Guillaume [Akademischer Betreuer] Puebla, and Tal [Gutachter] Dagan. "Genomics and the origin of marine species / Kosmas Hench ; Gutachter: Tal Dagan ; Betreuer: Oscar Guillaume Puebla." Kiel : Universitätsbibliothek Kiel, 2020. http://d-nb.info/1215571461/34.

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16

Grjebine, Liv. "Le darwinisme en débat dans la sociéte française (1859-1900) : le rôle du débat public dans la légitimation d'une théorie scientifique." Thesis, Paris 1, 2018. http://www.theses.fr/2018PA01H092.

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Jusqu’à présent, les travaux sur la réception de la théorie darwinienne en France ont surtout porté sur le monde savant. Ils ont conclu à un échec de sa diffusion. En élargissant cette étude à la société dans son ensemble, on découvre qu’il s’agit, en réalité, d’un succès. Le rôle du débat public dans l’introduction du darwinisme en France fait l’objet d’une première partie. Les thèses darwiniennes suscitent d’autant plus la curiosité d’un large public, à Paris et en province, qu’elles paraissent suggérer des réponses à des questions qui sont dans l’air du temps. Une deuxième partie analyse le

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17

Hodges, Tobias. "Clustering large raw DNA sequencing datasets by species of origin using signature features of genomic sequence composition." Thesis, University of York, 2012. http://etheses.whiterose.ac.uk/3202/.

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The establishment of high-throughput massively-parallel DNA sequencing technology has broadened the scope of metagenomics. The size and complexity of the datasets produced in such studies present considerable challenges. The aim of this project was to investigate the potential for genomic signature features to be applied to raw high-throughput sequencing reads generated from multi-species samples. Grouping reads according to the genome from which they originate could allow for the study of previously unknown or poorly- understood pathogens, and improve the performance of assembly of genome seq

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18

Kasprowicz, Adrienne Egge. "The origin and expansion of the eastern red fox." ScholarWorks@UNO, 2016. http://scholarworks.uno.edu/td/2143.

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When new populations are first identified in a region there are multiple potential sources: introduction of a non-native species, extra-range expansion of a nearby population, or demographic growth of a previously unnoticed species. Red foxes were absent or rare in the mid-eastern portion United States until the late 1800s. Their origins potentially include natural population increase/expansion, translocations from Europe, and, eventually, 20th century fur farming. In this study I attempt to identify the relative impact of native expansion versus human mediated introductions of both colonial e

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19

ALMEIDA, CIBELE MARIA STIVANIN DE. "STUDIES ON THE ORIGIN AND TRANSFORMATION OF SELENIUM AND ITS CHEMICAL SPECIES ALONG THE PROCESS OF PETROLEUM REFINING." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2008. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=12188@1.

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PETRÓLEO BRASILEIRO S. A.<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Diferentes métodos espectrométricos de análise, incluindo ICP OES, ICP-DRCMS e Q-ICPMS com técnicas hifenadas (geração de hidreto, vaporização eletrotérmica ou cromatografia de íons), foram aplicados na caracterização química de 16 óleos e 41 amostras de efluentes aquosos de uma refinaria de petróleo. O objetivo específico deste estudo foi o de entender o comportamento do selênio (Se) e de suas espécies químicas ao longo do processo de geração e tratamento dos efluentes desta unidade industrial

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20

Kibeida, Omer Abdelrahman Ismail. "A comparison of methods used to measure the in vitro antimicrobial susceptibilities of Mycoplasma species of animal origin." Diss., University of Pretoria, 2010. http://hdl.handle.net/2263/26686.

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Antimicrobials are commonly used to treat mycoplasmosis in animals. In spite of this and the fact that antimicrobial resistance has been recorded for this group of bacteria there are no universally accepted in vitro means of testing for this resistance, nor is resistance testing for mycoplasmas a routine in most veterinary laboratories. So prior to testing for resistance to a number of mycoplasmas isolated from animals in South Africa it was necessary to compare different tests including broth and agar microdilution tests to find out which one would perform best. Using the field strains M. bov

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21

Spencer, Marc Richard. "Phylogenetic and Biogeographic Assessment of Ornithischian Diversity Throughout the Mesozoic: A Species-Level Analysis from Origin to Extinction." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/4915.

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Ornithischian dinosaurs form a diverse, globally-distributed clade including the dominant large land herbivores in many Mesozoic faunas. However, because we lack a well-resolved species-level phylogeny including basal and derived members, our understanding of the initial ornithischian radiation in the Late Triassic is unclear, which further complicates our ability to test biogeographic scenarios. A new species-level phylogenetic analysis, based on comprehensive empirical assessments of a wide sample of ornithischians with an emphasis

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22

Holt, Ben G. "Evolution and ecology of a species complex : investigating the origin and maintenance of colour polymorphism in the genus Hypoplectrus." Thesis, University of East Anglia, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.502369.

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Research into speciation and t~e processes governing divergence within species has received considerable attel1tion from ecologists and evolutionary biologists in recent years. However, few empirical studies have focused on marine systems, despite the potential evolutionary consequences of the unique conditions in this environment. The coral reef fish genus Hypoplectrus represents an excellent system with which to study marine divergence and comprises 10-14 distinct colour morphotypes. This thesis focuses on the Hypolectrus colour polymorphism and considers how these morphotypes differ genetic

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23

Fournier, Gérald. "Évolution et civilisation : report des pressions sélectives, émancipation et ‘technosymbiose’ : de l’anthropologie de Charles Darwin à l’économie évolutionniste étendue." Thesis, Lyon 1, 2010. http://www.theses.fr/2010LYO10237.

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Le processus sélectif est-il nié, persistant ou dialectiquement réalisé dans la civilisation ? De ce problème, deux thèses générales se dégagent : (1) celle de l’épuisement de la sélection naturelle, la société humaine témoignant d’une véritable émancipation vitale et (2) celle d’un report des pressions de sélection, le système de contraintes sélectives demeurant effectif. En fait, cette interrogation se trouve esquissée dès l’« anthropologie » de Charles Darwin (1871), sujette encore à débats, notamment sur l’existence du darwinisme social de ce dernier, forme, justement, de report des pressi

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Rong, Ying. "Phylogeny of the genus Gossypium and genome origin of its polyploid species inferred from variation in nuclear repetitive DNA sequences." Texas A&M University, 2004. http://hdl.handle.net/1969.1/3161.

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Knowledge of phylogenetic relationships among taxa is essential for comparative and evolutionary genomic research. Here, we report reconstruction of the phylogenetic tree of the genus Gossypium containing cultivated cottons of importance in agriculture by using variation of nuclear repetitive DNA sequences. Genomic DNA was isolated from 87 available accessions of 35 species representing all eight basic genome groups of the genus Gossypium and analyzed to infer phylogeny of the genus and genome origin of its polyploid species. Twenty-two interspersed repeated sequence clones derived from G. hir

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25

Capucho, Liana Carneiro 1984. "Diversidade morfológica de políades em espécies de Mimosoideae (Leguminosae) = Morphological diversity of polyads in Mimosoideae species (Leguminosae)." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315571.

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Orientador: Simone de Pádua Teixeira<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-24T13:42:31Z (GMT). No. of bitstreams: 1 Capucho_LianaCarneiro_D.pdf: 7485279 bytes, checksum: b54a3fba348638fec00612447ae9cdb5 (MD5) Previous issue date: 2014<br>Resumo: Dentre os diversos tipos de agrupamento polínico, encontrados em 42 famílias de angiospermas, as políades são de interesse especial, pois são registradas para apenas quatro destas famílias e sua ocorrência pode ser associada a uma redução no número de grãos de pólen por a

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Pieterson, Elisabeth Corrie. "Nature versus Nurture: The Influence of Phylogenetic Relatedness, Origin, and Environment on Native and Introduced Woody Shrubs in the Eastern United States." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534521742118989.

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27

Nuroniah, Hani Sitti. "Diagnostic markers for the identification of the tree species Shorea leprosula Miq. and S. parvifolia Dyer and the geographic origin of S. leprosula Miq." Göttingen Optimus Mostafa, 2009. http://d-nb.info/994412541/04.

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28

Casties, Isabel [Verfasser], Elizabeta [Akademischer Betreuer] Briski, and Ulrich [Gutachter] Sommer. "Non-indigenous species in Northern Europe and the Great Lakes-St. Lawrence River: the importance of geographic origin / Isabel Casties ; Gutachter: Ulrich Sommer ; Betreuer: Elizabeta Briski." Kiel : Universitätsbibliothek Kiel, 2018. http://d-nb.info/1236572726/34.

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29

Thibault, Margot. "Composition, abundance, origin and distribution of plastic pollution accumulated in the Southern Indian Ocean gyre." Electronic Thesis or Diss., La Réunion, 2024. https://elgebar.univ-reunion.fr/login?url=http://thesesenligne.univ.run/24_01_M_THIBAULT.pdf.

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La plupart des déchets plastiques mal gérés pénètrent dans l'environnement marin. Une fois dans les océans, ces plastiques dérivent jusqu'à atteindre des zones de convergence subtropicales, où ils s'accumulent pour former des « Garbage Patch ». Cinq de ces zones ont été découvertes,dont l’une dans le sud de l'océan Indien. Cette dernière a fait l'objet de peu d'études d'observation en surface, et plusieurs modèles de dispersion indiquent une localisation différente, la plaçant soit à l’ouest ou à l’est du bassin. Supposée être la deuxième « Garbage Patch » la plus polluée après celle du Pacifi

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Yalcindag, Erhan. "Origine, adaptation et évolution de Plasmodium falciparum dans un nouvel environnement : L’analyse d’une espèce invasive." Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20121/document.

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Résumé : La biologie évolutive permet de comprendre et de retracer l'origine des espèces ou des populations, de comprendre leurs dispersions dans différentes zones et d'analyser les différentiations résultant de ces évolutions. L'invasion biologique et les espèces envahissantes en général sont de bons modèles pour étudier et comprendre l'adaptation à de nouveaux environnements. Plasmodium falciparum, un protozoaire parasite agent du paludisme, a envahit de nouvelles populations hôtes et de nouvelles espèces de vecteurs à plusieurs reprises. Notre objectif était d'étudier (i) l'introduction, l'

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Korell, Lotte [Verfasser], Isabell [Akademischer Betreuer] Hensen, Helge [Akademischer Betreuer] Bruelheide, and Mark van [Akademischer Betreuer] Kleunen. "Plant species origin, herbivory and disturbance : effects on seedling recruitment and consequences for grassland diversity and productivity ; [kumulative Dissertation] / Lotte Korell. Betreuer: Isabell Hensen ; Helge Bruelheide ; Mark van Kleunen." Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2015. http://d-nb.info/1076038506/34.

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Paiva, Filipa [Verfasser], Elizabeta [Akademischer Betreuer] Briski, and Martin [Gutachter] Wahl. "The role of geographic origin and life history stages in invasion ecology : a comparative assessment of Northern European, Ponto-Caspian and North American species / Filipa Paiva ; Gutachter: Martin Wahl ; Betreuer: Elizabeta Briski." Kiel : Universitätsbibliothek Kiel, 2020. http://d-nb.info/1225349230/34.

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Helsing, Sophie. "Doktor Moreau och jakten på den etiska figuren : Från misslyckat människoskapande till respektfulla relationer." Thesis, Södertörns högskola, Institutionen för kultur och lärande, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-30245.

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“Doctor Moreau and The Hunt for The Ethical Figure. From unsuccessful man-making to respectful relations with Jacques Derrida, Donna Haraway and H. G. Wells” In H. G. Wells’ science fiction novel, The Island of Doctor Moreau (1896), a scientist on a remote island in the Pacific Ocean attempts to create humans from animals. Wells draws on Charles Darwin’s theories on the origins of species and the descent of man to create a horror story in which the uniqueness of the human is called into question. This study uses the novel to investigate the re-emergent interest in human-animal relations, withi

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Jagadesh, Soushieta. "Biogeography of Emerging Infectious Diseases In search for the hotspots of Disease X: A biogeographic approach to mapping the predictive risk of WHO’s Blueprint Priority Diseases Emerging human infectious diseases of aquatic origin: a comparative biogeographic approach using Bayesian spatial modelling Global emergence of Buruli Ulcer Spatial variations between Leishmania species: A biogeographic approach to mapping the distribution of Leishmania species in French Guiana Mapping priority neighborhoods: A novel approach to cluster identification in HIV/AIDS population." Thesis, Guyane, 2020. http://www.theses.fr/2020YANE0007.

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La récente pandémie de Covid19 nous rappelle, si cela était encore nécessaire, que la propagation des maladies infectieuses ignore les frontières géographiques. Les changements combinés de biodiversité locale et l’utilisation des terres, l’augmentation de la connectivité internationale par le transport et le commerce ainsi que la menace imminente du changement climatique a accru le risque d’émergence et de réémergence des maladies infectieuses (EMI). Jusqu’à présent la réponse des politiques de santé publique a été la surveillance passive sans toutefois s’avérer réellement efficace dans la pré

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Martijn, Joran. "Exploration of microbial diversity and evolution through cultivation independent phylogenomics." Doctoral thesis, Uppsala universitet, Molekylär evolution, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-327310.

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Our understanding of microbial evolution is largely dependent on available genomic data of diverse organisms. Yet, genome-sequencing efforts have mostly ignored the diverse uncultivable majority in favor of cultivable and sociologically relevant organisms. In this thesis, I have applied and developed cultivation independent methods to explore microbial diversity and obtain genomic data in an unbiased manner. The obtained genomes were then used to study the evolution of mitochondria, Rickettsiales and Haloarchaea. Metagenomic binning of oceanic samples recovered draft genomes for thirteen novel

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Gagné-Julien, Anne-Marie. "Études des notions de compétition et de coopération dans l'oeuvre de Charles Darwin." Thèse, 2014. http://hdl.handle.net/1866/11600.

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Dans le domaine de la biologie contemporaine, une attention grandissante est portée aux associations biologiques positives, telles que la symbiose, ce qui vient nuancer la perception traditionnellement « compétitive » de l’évolution. Parallèlement à l’engouement actuel que manifestent les chercheurs pour la coopération biologique, ce mémoire vise à pousser plus avant les recherches historiques concernant l’intégration de tels phénomènes dans l’œuvre de Charles Darwin. Plus spécifiquement, nous souhaitons examiner comment Darwin est parvenu à articuler l’aspect compétitif de l’évolution par sél

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Howard, Kieren Torres. "Origin of Darwin glass." Thesis, 2004. https://eprints.utas.edu.au/20592/1/whole_HowardKierenTorres2005_thesis.pdf.

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Darwin glass is an impact glass found in a strewn field near Mt Darwin, western Tasmania, Australia. It has been dated at 816 ± 7 ka by Ar-Ar methods. A 1.2 km circular depression, named Darwin Crater (42°18.39'S, 145°39.41'E), has previously been suggested as the source crater for the glass. The structure sits in a remote valley in Siluro-Devonian (Eldon Group) quartzite and slate. Earlier geophysical investigations demonstrated that the structure is an almost circular sediment-filled basin. The origin of this structure and its relationship to Darwin glass has long been a subject of controver

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Ng, Peter James Chemical Sciences &amp Engineering Faculty of Engineering UNSW. "Origin and detection of bacterial species associated with lettuce and salad vegetables." 2007. http://handle.unsw.edu.au/1959.4/40742.

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Ready-to-eat vegetable salads containing lettuce as a main ingredient have become popular food items in recent years. Microorganisms associated with these products determine their shelf-life, sensory appeal and safety. This thesis investigates the bacterial ecology of lettuce, aspects of their pre-harvest contamination with microorganisms, and the presence of antimicrobial constituents in such produce. Commercial pesticides (insecticides, herbicides, fungicides), used during lettuce cultivation were examined as potential sources of microbial contaminants. None of the pesticide concentrates con

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Crockford, Susan J. "Animal domestication and vertebrate speciation : a paradigm for the origin of species." 2004. http://hdl.handle.net/1828/542.

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Vaezi, Jamil. "Origin of Symphyotrichum anticostense (Asteraceae: Astereae) : an endemic species of the Gulf of St.Lawrence." Thèse, 2008. http://hdl.handle.net/1866/6601.

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Zhang, Wan-Yu, and 張菀渝. "The hybrid origin of Adiantum meishanianum (Pteridaceae): a rare and endemic species in Taiwan." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/78461189365206146309.

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碩士<br>國立臺灣大學<br>生態學與演化生物學研究所<br>101<br>Adiantum meishanianum is an endemic species distributed only in Meishan village, Kaohsiung, Taiwan. Adiantum meishanianum has been regarded as a hybrid origin. Previous studies suggest that A. caudatum, A.malesianum and A. philippense are its putative parents. Its sporangium contains only abortive spores implying its triploidy. The aim of the study is therefore to determine the hybrid origin of A. meishanianum by examining cytological status, reproductive strategy and reconstructed molecular phylogeny among these species. In A. caudautum we identified dip

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Earon, Ernest J. P. "The origin of digital species : the evolution of autonomous agents and lineages in a simulated ecosystem." 2005. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=232698&T=F.

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Gonzalez, Antonio. "The pariah case : some comments on the origin and evolution of primitive dogs and on the taxonomy of related species." Phd thesis, 2012. http://hdl.handle.net/1885/150900.

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This thesis describes our current knowledge on the taxonomy and archaeology of some Asian, African and Australasian Canis and explores new approaches to their classification and identity, using the Asian pariah as a pivotal point. I analysed several populations of primitive dogs, and described processes of diversification. What in many places is simply designated "the village dog" is a subtype of the pariah; the Australian dingo is also connected to the pariah, although there are some peculiarities related to its non-domestic nature; and I propose a hypothesis on the nature of the pariah. Asia

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Johnston, Monje David Morris. "MICROBIAL ECOLOGY OF ENDOPHYTIC BACTERIA IN ZEA SPECIES AS INFLUENCED BY PLANT GENOTYPE, SEED ORIGIN, AND SOIL ENVIRONMENT." Thesis, 2011. http://hdl.handle.net/10214/2747.

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Endophytes are organisms that live inside plants without causing disease and include microbes that benefit their hosts by aiding in nutrient acquisition and pathogen control. This thesis concerns the endophytes of the genus Zea which includes modern maize (Zea mays L.). Beginning 9,000 years ago, maize was domesticated from wild grasses in Mexico (teosintes), bred into diverse varieties and moved to new soils throughout the Americas. The impact of these long-term changes on the associated endophytic communities has not been examined. Furthermore, today, maize is routinely transplanted around t

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Gadawski, Piotr. "Species diversity and origin of non-biting midges (Chironomidae) from a geologically young lake and its old spring system." Phd diss., 2020. http://hdl.handle.net/11089/32135.

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In the present thesis, using midges (Diptera Chironomidae) as flagship taxa of freshwater ecology, I am focusing on the interesting research model represented by the Skadar Lake system. It is a well-known hot-spot of freshwater biodiversity consisting of the geologically young lake Skadar (originated ca. 1200 years BP) and by its ancient system of springs (originated in the Pliocene). The main aim of my thesis was to reveal and compare the morphological and molecular species diversity of non-biting midges (Diptera, Chironomidae) inhabiting Skadar Lake and its spring system. Using a taxonomy-ba

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Hsieh, Chen-Yu, and 謝鎮宇. "The origin and evolution history of Rhododendron species complex in Taiwan based on the intron sequences of LEAFY gene." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/66927117928670284739.

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碩士<br>中國文化大學<br>生物科技研究所<br>95<br>The genus Rhododendron is distributed throughout the world except Africa and South America. In Taiwan, Rhododendron species are found from the lowlands to the highest mountain. But Taiwanese Rhododendron species, which are only finding in middle to high elevation, contain four species. These four Taiwanese Rhododendron species include R.hyperythrum、R.rubropanctatum、R.morii and R.pseudochrysanthum. In these species, taxonomists classified them as a single species (R.pseudochrysanthum) by morphological way (Flora of Taiwan ver.4). In fact, there is only a 0.4% ge

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Kolnicki, Robin Lee. "Mammalian species origin and geographical dispersal patterns correlate with changes in chromosome structure, exemplified in lemurs (Madagascar) and bats (worldwide)." 2012. https://scholarworks.umass.edu/dissertations/AAI3518251.

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The origin and geographical distribution of mammalian species (my examples are lemurs and bats) correlate with predictable chromosomal structural changes (KFT=karyotypic fission theory). Chromosome studies provide information about fertility between individuals and they are significant for identification of the geographical origin of reproductive isolation within mammal families. Each family predictably has chromosome sets with numbers that range from one to double the lowest number of chromosomes. The chromosome numbers of all species within a single family are used to reconstruct that family

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Hong, Xiang-Gui, and 洪祥貴. "The identification of soy sauce adulterated with bean species and the origin using headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/8855vk.

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碩士<br>國立中興大學<br>分子生物學研究所<br>107<br>Nowadays, there are more and more cases of incomplete food labeling causes the real contents of foods are inaccurate. However, there is still not a complete set of methods to distinguish the geographical origins of soy sauce now. Most of the soy sauces on the market is based on soybeans, wheat and so on as the main raw materials, which are decomposed by Aspergillus oryzae, and then fermented by yeast and lactic acid bacteria. However, volatile compounds may be modified with the quality and type of raw materials, the use of different strains, and the different

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Ilahi, Wafa. "Metabarcoding identification of botanical origin of bee-collected pollen samples: comparison of ITS2 reference database performance before and after enrichment with sequences of bee plant species." Master's thesis, 2020. http://hdl.handle.net/10198/23703.

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Mestrdo de dupla diplomação com a High Institute of Biotechnology of Monastir<br>Sequence analysis of complex DNA samples is an important approach to monitoring species distribution in biodiversity and population studies. Although many traditional methods can be used to identify bee plant resources (e.g., direct observations, microscopy), high-throughput sequencing technologies have transformed our ability to explore more complex plant communities without necessity of experts and in a time cost effective-manner, in comparison with the classical techniques. Recently, metabarcoding, which combin

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Gendron-Pontbriand, Eve-Marie. "Modes de conceptualisation métaphoriques et théorie de l’évolution : analyse textuelle et traduction." Thèse, 2013. http://hdl.handle.net/1866/10747.

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Éminent naturaliste du XIXe siècle, Charles Darwin publie en 1859 ce qui s'avérera être l’un des textes fondateurs des sciences de la vie : On the origin of species by means of natural selection, or the preservation of favoured races in the struggle for life (ou OS). Ce volumineux ouvrage pose les assises conceptuelles de la théorie darwinienne de l'évolution. Cette dernière suscite encore de nos jours la controverse : certains la nient (créationnisme, dessein intelligent, etc.) alors que d'autres la poussent à l'extrême (eugénisme, darwinisme social, etc.). Vu la grande portée de l'OS, le pr

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