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Dissertations / Theses on the topic 'Animal phylogenetics'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Howard, Sarah Louise. "Comparative phylogenetics of Yersinia enterocolitica from human and animal sources." Thesis, London School of Hygiene and Tropical Medicine (University of London), 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.435823.

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Putnam, Emily Ruth Smith. "Ecology, Phylogenetics, and Conservation of Draba asterophora Complex: A Rare, Alpine, Endemic from Lake Tahoe, USA." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3904.

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Rare, alpine, endemic species are particularly at risk for extinction. Alpine environments are especially vulnerable to climate change and human impacts, such as ski resort development and snowmaking. Draba asterophora Payson is a rare, alpine species that occurs only in three disjunct mountain-top regions surrounding Lake Tahoe. It is currently threatened by human impacts, such as ski resorts, as well as indirect influences of climate change and therefore in need of better understanding for conservation purposes. Draba asterophora may be able to serve as a case study for other similarly vulne

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3

Sarria, Perea Javier Adolfo [UNESP]. "Taxonomia e filogenia de algumas espécies de Mazama (Mammalia; Cervidae) da Colômbia." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/102769.

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Made available in DSpace on 2014-06-11T19:32:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-06-11Bitstream added on 2014-06-13T19:42:43Z : No. of bitstreams: 1 sarriaperea_ja_dr_jabo.pdf: 821643 bytes, checksum: c83c440effb340e9e4dd400a82552c2b (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Foi feita uma revisão da taxonomia e filogenia de algumas espécies de Mazama da Colômbia. 15 animais provenientes da região caribe e da região andina colombiana foram analisados por técnicas morfométricas, citogenéticas e moleculares. Para definir morfotipos foram fei

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Cannon, Nathaniel S. "Domain Duplication, Darwinian Selection, and the Origin of the Globulin Seed Storage Proteins." BYU ScholarsArchive, 2008. https://scholarsarchive.byu.edu/etd/1544.

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The seed storage globulins found among virtually all spermatophytes comprise a multi-gene family of proteins with ancient evolutionary origins. The two main groups of storage globulins include the legumins (11S) and vicilins (7S), both of which play a main role in protein deposition and storage in the seed endosperm. Composed of two cupin domains (bicupin), these proteins have been recently noted not only for their close structural relationships among the two subfamilies (7S and 11S) but also for their similarity to other proteins such as germin-like proteins (GLP's), bacterial oxalate decarbo

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Wood, Mathew Vincent. "Global Phylogeny of the Water Penny Beetles Using Both Molecular and Morphological Evidence (Co." TopSCHOLAR®, 2016. http://digitalcommons.wku.edu/theses/1560.

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The Psephenidae is a family of freshwater beetles usually found in swift streams worldwide. Their unique disc shaped and flattened larvae have made this a group of interest for scientists for centuries. Morphologically, this family has been relatively well researched, and systematically the family is fairly well known and supported as monophyletic. One issue with Psephenidae, and with many other insect groups, is the lack of the molecular phylogenetic analyses to test morphology hypothesizes. After successfully sequencing these two genes from species representing nearly all of the known genera

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Sarria, Perea Javier Adolfo. "Taxonomia e filogenia de algumas espécies de Mazama (Mammalia; Cervidae) da Colômbia /." Jaboticabal : [s.n.], 2012. http://hdl.handle.net/11449/102769.

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Orientador: Jose Mauricio Barbanti Duarte<br>Banca: Jeffrey Frederico Lui<br>Banca: Maurício Bacci Júnior<br>Banca: Vera Cristina Silva<br>Banca: Pedro Manoel Galetti Junior<br>Resumo: Foi feita uma revisão da taxonomia e filogenia de algumas espécies de Mazama da Colômbia. 15 animais provenientes da região caribe e da região andina colombiana foram analisados por técnicas morfométricas, citogenéticas e moleculares. Para definir morfotipos foram feitas a descrição detalhada dos padrões cromatogênicos do rosto e corpo e análises de componentes principais das medidas morfométricas. Para as anali

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7

Pratt, Renae. "Patterns and processes in animal evolution : molecular phylogenetics of Southern Hemisphere fauna : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Genetics." Massey University, 2008. http://hdl.handle.net/10179/958.

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Three kinds of processes are known to modify the geographical spatial arrangement of organisms: dispersal, extinction and vicariance. The Southern Hemisphere has an intriguing and complicated geological history that provides an ideal backdrop to study these processes. This thesis focuses on three historical events that illustrate these processes: the proposed marine inundation of New Zealand in the Oligocene, the asteroid impact at the K – Pg boundary, and the continental breakup of Gondwana. It investigates what impact these events had on species diversification by studying the phylogenetic r

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Bolton, Samuel John. "The Nematalycidae (Acariformes): An exploration of large-scale morphological variation and evolution using low-temperature scanning electron microscopy." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461084499.

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Burnham, Quinton. "Systematics and biogeography of the Australian burrowing freshwater crayfish genus Engaewa Riekk (Decapoda: Parastacidae)." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2014. https://ro.ecu.edu.au/theses/1278.

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The overall aim of this study was to explore the systematics and biogeographic patterns of the freshwater crayfish genus Engaewa Riek, a strongly burrowing freshwater crayfish restricted to the coastal corner of south-western Australia (SWA). The genus Engaewa is a Gondwanan relict with great potential as a marker of historical processes, due to its high habitat specificity and low dispersal ability. This study comprises an extensive taxonomic and phylogenetic revision of the genus Engaewa (using both molecular and morphological data), a detailed study of its distribution and uses the knowledg

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Nunes, De Matos Farminhão João. "Advances in angraecoid orchid systematics in Tropical Africa and Madagascar: new taxa and hypotheses for their diversification." Doctoral thesis, Universite Libre de Bruxelles, 2021. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/321768.

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Les angrecoïdes constituent le groupe d'orchidées épiphytes le plus diversifié dans les Afrotropiques, comprenant environ 800 espèces. Bien que beaucoup d'attention leur aient été porté, certaines énigmes taxonomiques subsistent au sein des angraecoïdes, et les facteurs à l'origine de leur diversification rapide sont encore inconnus. Les angraecoïdes présentent une remarquable diversité en termes du nombre chromosomique, en faisant un système très approprié pour explorer l'impact des changements caryotypiques sur la cladogenèse, les taux de spéciation/extinction et la diversification morpholog

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Fergusson, Nigel Donald MacDade. "A phylogenetic study of the Cynipoidea (Hymenoptera)." Thesis, London Metropolitan University, 1990. http://repository.londonmet.ac.uk/2955/.

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The current classification of the Cynipoldea was subjected to compatibility analysis on the basis of the characters then employed and shown to have a very poor resolution. A comprehensive morphological investigation of 31 exemplar species was undertaken and 234 characters were found, a 450% increase over the established classification. These characters were analysed and the compatibility clique contained 135 apomorphies, 68 of which were synapomorphies. This is an increase of 600% and 300% respectively over the established data, this is a tremendous improvement in the data-base leading to a gr

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Nall, Gregory Allen. "An alternative model of chimpanzee social structure, with implications for phylogenetic models of stem-hominid social structure." Virtual Press, 1992. http://liblink.bsu.edu/uhtbin/catkey/845924.

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The following research paper was concerned with five basic objectives:(1) outlining the major theoretical and methodological approaches used in the reconstruction of early hominid social behavior/social structure as a context in which to view Richard Wrangham's and Michael Ghiglieri's phylogenetic models of stem-hominid social structure.(2) examining Wrangham's and Ghiglieri's models of stem-hominid and chimpanzee social structure.(3) indicating how theoretical and methodological aspects of structure essentially represent an extension of the theoretical and methodological approaches the same r

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13

Hanson, Sara Jeanette. "The molecular evolution of reproduction in animals: insights from sexual and asexual rotifers." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/1618.

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Sex and meiosis are ubiquitous in eukaryotes as the primary mode of reproduction. This suggests that despite the theoretical energetic advantages of asexual reproduction, organisms capable of sexual reproduction are at a much greater long-term evolutionary advantage. Rotifers, a group of microinvertebrates, offer unique opportunities to examine the evolution of sex due to their extensive proliferation, successful adaptation to a wide variety of ecological niches, and the diversity of reproductive modes represented in the group. The cyclically parthenogenetic monogonont rotifers have overcome c

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Street, Sally E. "Phylogenetic comparative investigations of sexual selection and cognitive evolution in primates." Thesis, University of St Andrews, 2014. http://hdl.handle.net/10023/11198.

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A full understanding of any biological trait requires investigation of its evolutionary origin. Primates inspire great curiosity amongst researchers due to the remarkable diversity across species in both anatomical and behavioural traits, including sociality, sexual behaviour, life histories, neuro-anatomy, cognitive abilities and behavioural repertoires. The study of primates has involved comparative approaches since its inception, however, the necessary tools for statistically investigating the macro-evolutionary processes responsible for current diversity in biological traits have been deve

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15

Smith, Rosemary Josephine. "Predation risk and the community organization of montane ground squirrels and a phylogenetic test of the association between diurnal activity and gregarious behavior in mammals." Diss., The University of Arizona, 1991. http://hdl.handle.net/10150/185454.

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Predation risk strongly influences the ecology and evolution of animal behaviors. However, anti-predator responses differ among species. Tradeoffs between anti-predator abilities and foraging efficiencies across habitats can promote the coexistence of ecologically similar species. In general, larger animals may better exploit riskier habitats; smaller animals, resources at low densities. I studied two montane ground squirrels Spermophilus lateralis and Tamias minimus in Colorado. Using food trays, I determined that the smaller T. minimus foraged more efficiently near meadow edges and was compe

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Carnicer, Castaño Olga. "Spatio-temporal distribution, physiological characterization and toxicity of the marine dinoflagellate Ostreopsis (Schmidt) from a temperate area, the Ebre Delta. Phylogenetic variability in comparison with a tropical area, Reunion Island." Doctoral thesis, Universitat de Barcelona, 2014. http://hdl.handle.net/10803/286276.

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The toxic epi-benthic dinoflagellate Ostreopsis includes several species producers of palytoxin-like compounds, one of the most potent marine toxins known so far. The aims of this thesis are, a) to contribute to the improvement of the genus taxonomy by molecular, morphological and toxicological characterization in Reunion Island and, b) to investigate, combining field and laboratory analysis, the role of environmental factors and their interaction, involved in the ecology of O. cf. ovata blooms in the NW Mediterranean Sea. Three genotypes of the genus Ostreopsis were described; 1) Isolates

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Esteve, Cavaller Manuel. "Spawning behaviour of the Salmoninae subfamily members. A phylogenetic study." Doctoral thesis, Universitat de Barcelona, 2005. http://hdl.handle.net/10803/790.

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Long-term data from underwater video recordings in the wild and in semi-natural channels are used to describe and compare the reproductive behaviour of fishes in the Salmoninae subfamily. The thesis is divided into five chapters. In the first, a new division of male alternative strategies and tactics based on relative age at maturation (strategy) and on behaviour in the spawning grounds (tactic) is proposed. A variation to the evolutionarily stable strategies (ESS) model based on a growth velocity-dependent maturation threshold is suggested. <br/>In the second chapter, methods of video rec

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18

Taylor, David A. "Ecological and phylogenetic characteristics of consumed red-backed salamanders influence antipredator behavior of conspecifics." Diss., Online access via UMI:, 2006.

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19

Magliano, Ana Cristina Mansanaro. "Diversidade de Acanthamoeba spp no Brasil: isolamento, aspectos fisiológicos, genotipagem e relações filogenéticas entre isolados de ambientes e de casos clínicos." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/42/42135/tde-21032012-154020/.

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Organismos do gênero Acanthamoeba são muito pouco investigados no Brasil, não se conhecendo a diversidade genética e o potencial patogênico das espécies prevalentes no país. Este estudo examinou a presença de Acanthamoeba em 118 amostras de solo e água de diversas regiões do Brasil e, como resultado, 38 novas culturas axenicas foram estabelecidas. A partir do sequenciamento da subunidade menor do gene ribossômico foi possível genotipar, avaliar o polimorfismo genético das amostras brasileiras e também inferir relações filogenéticas entre isolados clínicos e de ambiente do Brasil e entre esses

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Teske, Peter R. (Peter Rodja). "Population genetics and phylogenetic placement of the endangered Knysna seahorse, Hippocampus capensis." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53553.

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Thesis (PhD)--Stellenbosch University, 2003.<br>ENGLISH ABSTRACT: The aims of this study were to investigate genetic issues pertaining to the conservation of the Knysna seahorse, Hippocampus capensis, and to determine the phylogenetic placement of this endangered estuarine species among marine seahorses. This was accomplished by focusing on three aspects of the taxonomy: the interspecific level; the inter-population level; and the intra-population level. To determine which species are closely related to H. capensis, and how the evolutionary history of this lineage relates to that of oth

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Comandatore, F. "EVOLUTION OF WOLBACHIA SYMBIOSIS IN ARTHOPODS AND NEMATODES: INSIGTHS FROM PHYLOGENETICS AND COMPARATIVE GENOMICS." Doctoral thesis, Università degli Studi di Milano, 2015. http://hdl.handle.net/2434/274889.

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Wolbachia is a bacterium observed in relationship with a wide array of arthropod and nematode species. This is an obligate intracellular symbiont, maternally transferred through the host oocytes. In arthropods Wolbachia is able to manipulate reproduction, using multiple strategies to increase the fitness of infected females. In nematodes the bacterium has a fundamental, and not completely understood, role in larvae development. Wolbachia infects ~50% of all the arthropod species worldwide, and in some of them it can be considered the most important sex determination factor. In contrast, Wolbac

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Mwinyi, Adina, Achim Meyer, Christoph Bleidorn, Bernhard Lieb, Thomas Bartolomaeus, and Lars Podsiadlowski. "Mitochondrial genome sequence and gene order of Sipunculus nudus give additional support for an inclusion of Sipuncula into Annelida." Universität Potsdam, 2009. http://opus.kobv.de/ubp/volltexte/2010/4491/.

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Background: Mitochondrial genomes are a valuable source of data for analysing phylogenetic relationships. Besides sequence information, mitochondrial gene order may add phylogenetically useful information, too. Sipuncula are unsegmented marine worms, traditionally placed in their own phylum. Recent molecular and morphological findings suggest a close affinity to the segmented Annelida. Results: The first complete mitochondrial genome of a member of Sipuncula, Sipunculus nudus, is presented. All 37 genes characteristic for metazoan mtDNA were detected and are encoded on the same strand. The

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Dias, Fabio Carvalho [UNESP]. "Diarréia viral bovina(BVD): aspectos epidemiológicos da infecção persistente, avaliação sorológica da resposta imune e caracterização molecular do virús." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/103831.

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Made available in DSpace on 2014-06-11T19:32:52Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-02-12Bitstream added on 2014-06-13T19:03:33Z : No. of bitstreams: 1 dias_fc_dr_jabo.pdf: 950154 bytes, checksum: 170fddcca2fc4c7004161e93f093a97f (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>A ocorrência de anticorpos neutralizantes contra os genótipos do vírus da diarréia viral bovina (BVDV 1 e BVDV 2) foi verificada, pelo teste de virusneutralização (VN), em 260 amostras de soro sangüíneo de 26 rebanhos não vacinados contra o BVDV, provenientes dos Estados de

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Brum, Fernanda Thiesen. "Padrões espaciais de ocorrência de tiranídeos (Aves: Tyrannidae) nas florestas com araucária : aspectos filogenéticos e funcionais." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/29985.

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Os gradientes de riqueza e diversidade foram extensivamente explorados por ecólogos, estudando as interações dos organismos com o meio em escalas locais, e biogeógrafos, que buscam entender como os organismos se distribuem atualmente e no passado na superfície da terra em relação a dinâmicas de extinção, especiação e dispersão. Mas tão fundamental quanto saber o que determina o número de espécies em um determinado local, é saber o que determina quem são as espécies que ocorrem ali, ou seja, a composição de espécies. Nas últimas décadas, os ecólogos têm reconhecido que a organização das comunid

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Wragg, Graham. "The comparative biology of Fluttering shearwater and Hutton's shearwater and their relationship to other shearwater species." Lincoln College, University of Canterbury, 1985. http://hdl.handle.net/10182/1635.

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The discovery and taxonomic history of fluttering shearwater (Puffinus gavia (Forster) and Hutton's shearwater (Puffinus huttoni Mathews) are reviewed. Taxonomic theory, where appropriate to this thesis, is discussed. The external morphology of P. gavia and P. huttoni is compared. No single external measurement or plumage character separates more than 60% of birds examined. The best system of identification is to compare the ratio of different body parts within an individual bird. The distribution of P. gavia and P. huttoni is compared. Hutton's shearwater feeds further out to sea and it is be

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Vosloo, W., Klerk LM de, CI Boshoff, B. Botha, and RM Dwarka. "Characterisation of a SAT-1 outbreak of foot-andmouth disease in captive African buffalo (Syncerus caffer): Clinical symptoms, genetic characterisation and phylogenetic comparison of outbreak isolates." Veterinary Microbiology, 2007. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000818.

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African buffalo (Syncerus caffer) play an important role in the maintenance of the SAT types of foot-and-mouth disease (FMD) in southern Africa. These long-term carriers mostly become sub-clinically infected, maintaining the disease and posing a threat to other susceptible wildlife and domestic species. During an unrelated bovine tuberculosis experiment using captive buffalo in the Kruger National Park (KNP), an outbreak of SAT-1 occurred and was further investigated. The clinical signs were recorded and all animals demonstrated significant weight loss and lymphopenia that lasted 100 days. In

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Campbell, Terry G. "Analysis of glycerol 3-phosphate dehydrogenase and sarco/endoplasmic reticulum calcium ion channel ATpase for use in deep metazoan phylogenetics." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002375.

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Dias, Fabio Carvalho. "Diarréia viral bovina(BVD) : aspectos epidemiológicos da infecção persistente, avaliação sorológica da resposta imune e caracterização molecular do virús /." Jaboticabal : [s.n.], 2008. http://hdl.handle.net/11449/103831.

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Orientador: Samir Issa Samara<br>Banca: Claudia Del Fava<br>Banca: Amauri Alcindo Alfieri<br>Banca: Adolorata Aparecida Bianco Carvalho<br>Banca: Aramis Augusto Pinto<br>Resumo: A ocorrência de anticorpos neutralizantes contra os genótipos do vírus da diarréia viral bovina (BVDV 1 e BVDV 2) foi verificada, pelo teste de virusneutralização (VN), em 260 amostras de soro sangüíneo de 26 rebanhos não vacinados contra o BVDV, provenientes dos Estados de Minas Gerais e São Paulo. Do total de amostras, 102 (39,2%) reagiram ao BVDV, das quais 81 (31,1 %) foram reagentes ao BVDV 1 e ao BVDV 2, sete (2,

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Maestri, Renan. "Evolução morfológica na radiação dos roedores sigmodontíneos : ecologia e história evolutiva." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/163695.

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Radiações evolutivas estão entre os eventos mais fascinantes da evolução. Grande parte da diversidade da vida, tanto de espécies como ecológica, surgiu nos breves intervalos temporais de rápida especiação que configuram as radiações. As causas ecológicas e não-ecológicas do surgimento da diversidade em radiações evolutivas, em especial nas radiações adaptativas, são tema de pesquisa há muito tempo, pelo menos desde que Darwin observou a imensa diversidade de um grupo de pássaros nas ilhas Galápagos. Desde então, as ilhas têm sido os ambientes ideais para o estudo desse fenômeno, e foi a partir

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Aguiar, Hilton Jeferson Alves Cardoso de. "First report on spontaneous hybridization between Astyanax giton Baird & Girard 1854 and Oligosarcus argenteus Günther 1864 (Pisces : Characidae): ecological and phylogenetic inferences." Universidade Federal de Viçosa, 2011. http://locus.ufv.br/handle/123456789/4748.

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Made available in DSpace on 2015-03-26T13:42:21Z (GMT). No. of bitstreams: 1 texto completo.pdf: 3749391 bytes, checksum: 3aaf46231fff9be22a66ac420fb3e525 (MD5) Previous issue date: 2011-02-14<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>A complexa família Characidae é parte da fauna ictiológica neotropical e conta com várias espécies e gêneros em condição de Incertae Sedis. Os gêneros Astyanax e Oligosarcus, considerados muito aparentados, estão incluídos nesta família e abrangem espécies de pequeno tamanho e expressiva abundância em muitos rios e córregos da América

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Moreno-Borrallo, Adrián. "Glucose and glycation in birds : phylogenetic and ecological factors, physiological mechanisms and individual fitness links." Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAJ057.

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Le glucose est central dans le métabolisme, mais il affecte également le vieillissement en favorisant la glycation non enzymatique et la formation de produits finaux de glycation avancée (AGE). Cette thèse étudie le glucose et la glycation chez les oiseaux, qui montrent une longévité ajustée à la masse plus élevée par rapport aux mammifères malgré des niveaux de glucose sanguin plus élevés, à travers de: (i) une étude mettant en relation ces traits avec la diète et les traits d'histoire de vie le long de l'arbre des oiseaux, (ii) une évaluation de leur lien avec le fitness dans une population

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Brito, Cristina de Jesus Câmara. "Caracterização biológica, antigência e genética de amostras de vírus da raiva isoladas de animais domésticos e de seres humanos no Estado do Maranhão." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/10/10134/tde-23042009-152205/.

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Analisou-se 54 amostras de vírus da raiva isoladas de diferentes espécies animais e de seres humanos do Estado do Maranhão, inicialmente pelas técnicas tradicionais de imunofluorescência direta (IFD) e de inoculação intracerebral em camundongos (ICC), com o objetivo de realizar um estudo de epidemiologia da doença. No reteste, todas as amostras foram positivas na IFD e 19 resultaram negativas à ICC. O comportamento biológico dos isolados foi estudado em camundongos, revelando um período de incubação entre 7 e 17 dias, com sinais clínicos variados e duração média de 4 dias. Para a avaliação da

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Nogueira, Anselmo. "Evolução e ecologia de tricomas em Bignonieae (Bignoniaceae): estruturas morfológicas de defesa anti-herbivoria?" Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/41/41132/tde-19042012-104435/.

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Este trabalho focou nos aspectos evolutivos e ecológicos dos tricomas em espécies da tribo Bignonieae (Bignoniaceae), e no potencial papel defensivo dessas estruturas no aumento da resistência das plantas frente aos herbívoros. Esta tese caracterizou quatro morfotipos de tricomas encontrados nas partes vegetativas das plantas da tribo Bignonieae morfologicamente, estudou os padrões macro-evolutivos destes tricomas e o papel funcional dos tricomas pateliformes secretores de néctar em diferentes escalas de tempo e espaço. O primeiro capítulo descreveu os quatro tipos de tricomas micro e macro-mo

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Luzzago, C. "SPATIAL AND TEMPORAL DYNAMICS OF PESTIVIRUS, CRIMEAN-CONGO HEMORRHAGIC FEVER AND HEPATITIS E VIRUS: A PHYLOGENETIC APPROACH." Doctoral thesis, Università degli Studi di Milano, 2015. http://hdl.handle.net/2434/345519.

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The general aim of the PhD project was to apply phylogenetic analysis to viral sequences obtained in different geographic areas at different times, in order to reconstruct the most probable places of origin and pathways of dispersion of infections. Viral population growth and evolution leave a measurable imprint on the genome of viruses over the course of years, months or even days and occur simultaneously with geographic dispersal (Holmes, 2008; Pybus & Rambaut, 2009). This interaction characterizes a spatial phylodynamic process that can be recovered from genomic data using phylogeographic a

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Kuehnl, Kody F. "Exploring Levels of Genetic Variation in the Freshwater Mussel Genus Villosa (Bivalvia Unionidae) at Different Spatial and Systematic Scales: Implications for Biogeography, Taxonomy, and Conservation." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1253565660.

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CANELLI, ELENA. "DEVELOPMENT OF INNOVATIVE DIAGNOSTIC PROTOCOLS TO BE APPLIED TO THE STUDY OF THE EPIDEMIOLOGY AND GENETICS OF AVIAN ROTAVIRUSES." Doctoral thesis, Università degli Studi di Milano, 2015. http://hdl.handle.net/2434/341921.

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Rotaviruses (RVs) are the major cause of acute gastroenteritis in infants and young animals of mammalian and avian species. In avian species, group A and D are represented with high frequency, while group F and G are sporadic. Enteric syndrome in young birds is a major concern to the poultry industry, causing severe economic losses. Monitoring Rotavirus distribution in different avian species is crucial to uncover diversity among strains and to better understand RV ecology in the field. The aims of this project were: i) to provide information on distribution of the different RV groups in avi

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Chan, Matthew D. "Fish ecomorphology predicting habitat preferences of stream fishes from their body shape /." Diss., Connect to this title online, 2001. http://scholar.lib.vt.edu/theses/available/etd-05242001-183326.

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Bünger, Amarilis Novaes D'Elboux. "Detecção e caracterização molecular do gene 3 e 5 do coronavírus de perus (TCOV) isolados de perus com severa enterite no Brasil." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/42/42132/tde-02122009-085608/.

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O coronavírus de perus (TCoV) é o agente etiológico associado a síndrome de mortalidade entérica das aves (PEMS). PEMS é uma enfermidade entérica, aguda e altamente contagiosa dos perus caracterizada por depressão, anorexia, diarréia e alta mortalidade em lotes de perus comerciais. A presença do coronavírus de perus (TCov) foi pesquisada em 29 amostras de conteúdo intestinal de perus entre 10 e 104 dias de idade que apresentaram enterite severa no período de 2004 a 2006. A detecção do TcoV foi realizada realizada através da técnica da transcriptase reversa e da reação em cadeia pela polimerase

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Prévot, Vanya. "Exploring the taxonomy of a facultative selfing, polymorphic land snail: the genus Rumina, Gastropoda Pulmonata." Doctoral thesis, Universite Libre de Bruxelles, 2011. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209873.

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Le genre Rumina Risso, 1926 (Subulinidae) est constitué de gastéropodes terrestres, hermaphrodites et capables de réaliser de l’autofécondation ainsi que de la fécondation croisée. Plusieurs espèces ont été décrites sur base de subtiles différences morphologiques telles que la forme et la taille de la coquille et la coloration du corps. Trois espèces sont actuellement toujours reconnue dans la littérature: Rumina decollata (Linnaeus, 1758), R. saharica Pallary, 1901 et R. paivae (Lowe 1861). Cependant, uniquement le statut spécifique de R. decollata et R. saharica a été confirmé par la morphol

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Correia, Kelly Isadora de Oliveira. "Diversidade taxonômica, filogenética e funcional de aves em gradientes ambientais na caatinga." Universidade Federal de Sergipe, 2016. https://ri.ufs.br/handle/riufs/4461.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Biological diversity is a broad, deep and multifaceted concept that describes all variability of living forms on different spatial and temporal scales and levels of organization. Even among species, diversity can assume distinct characters, including a taxonomic, a phylogenetic and a functional one. Semiarid ecosystems such as the Caatinga were poorly addressed from an integrated perspective of its biodiversity. The region possess high biotic variability and undergoes intense pressures from abiotic and anthropogenic fa

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Tidière, Morgane. "The diversity of actuarial senescence across mammals : demographic data from captive populations reveal the influence of sexual selection." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSE1237/document.

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La sénescence de survie est un processus défini comme le déclin progressif des probabilités de survivre en fonction de l'âge, et caractérisé par deux paramètres clés : l'âge de début de sénescence et le taux de sénescence. En dépit de son caractère délétère sur la fitness, la sénescence est observée chez la plupart des êtres vivants et plusieurs théories évolutives de la sénescence ont été proposées pour expliquer ce paradoxe. Chez les mammifères, il existe une grande diversité de patrons de sénescence de survie entre les espèces, mais aussi entre les sexes. En général, les males sénescent plu

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Jiang, Yiting. "Anti-predator Behavior of Birds and Conservation." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS076/document.

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Prey s'appuie sur les décisions d'évasion lorsqu'il est confronté à des prédateurs pour maximiser les avantages de rester en place tout en réduisant les coûts de la prédation. Ce compromis de l'histoire de vie peut être reflété par la distance d'initiation de vol (FID), la distance à laquelle un individu prend son envol lorsqu'il est approché par un humain. J'ai abordé les facteurs potentiels expliquant la variation FID avec des données d'espèces d'oiseaux en Europe. La variabilité génétique était liée au risque de prédation FID; les espèces d'oiseaux menacées avaient généralement une FID plus

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RIBEIRO, Elâine Maria dos Santos. "Efeito de pertubações antrópicas crônicas sobre a diversidade da flora lenhosa da caatinga." Universidade Federal de Pernambuco, 2015. https://repositorio.ufpe.br/handle/123456789/17412.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2016-07-15T14:44:30Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Elâine_Ribeiro_TESE_PPGBV.final_V2.pdf: 8805946 bytes, checksum: 49c5072b57c8b0d0264ac0e02e425dc3 (MD5)<br>Made available in DSpace on 2016-07-15T14:44:30Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Elâine_Ribeiro_TESE_PPGBV.final_V2.pdf: 8805946 bytes, checksum: 49c5072b57c8b0d0264ac0e02e425dc3 (MD5) Previous issue date: 2015-02-25<br>FACEPE<

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Chen, Ting-Wen. "Assembly processes in soil animal communities: Integrating phylogeny and trait-based approaches." Doctoral thesis, 2018. http://hdl.handle.net/11858/00-1735-0000-002E-E372-9.

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Pauly, Gregory Blair. "Phylogenetic systematics, historical biogeography, and the evolution of vocalizations in Nearctic toads (Bufo)." 2008. http://hdl.handle.net/2152/17896.

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The evolution of mating signals has long interested biologists because changes in mating signal production and/or reception can lead to reproductive isolation and speciation. Here, I examine the evolution of the male mating signal (the advertisement call) and the female preference for this call in the Western Toad, Bufo boreas. Call surveys and a morphological study for the occurrence of vocal sacs, which are necessary for producing these calls, reveal that only populations in the northeastern corner of this species’ range produce long, high-amplitude advertisement calls. This is the first stu

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MacLean, Evan. "What Makes Our Minds Human? Comparative Phylogenetic Perspectives on the Evolution of Cognition." Diss., 2012. http://hdl.handle.net/10161/5410.

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<p>What makes our minds human? How did they evolve to be this way? This dissertation presents data from two complementary lines of research driven by these orienting questions. The first of these explores the `what' of human cognitive evolution through comparative studies with chimpanzees and bonobos. The general aim of these studies is to understand which aspects of cognition are unique to humans, and which are shared with our closest living relatives. Chapters 2-3 test the hypothesis that humans have unique cognitive skills for reasoning about the attention of other individuals (theory

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