Relevant bibliographies by topics / Cryptic variation

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  1. Dissertations / Theses

Academic literature on the topic 'Cryptic variation'

Author: Grafiati
Published: 28 June 2021
Last updated: 12 February 2022

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Dissertations / Theses on the topic "Cryptic variation"

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KIssane, Kelly C. "Geographic variation and cryptic species evidence from natural populations of the fishing spider Dolomedes triton /." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3275834.

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Moeser, Andrew A. "Genetic analyses of sympatric cryptic species in the Neotropical catfish, Pimelodella chagresi." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82294.

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I used microsatellite markers to assess reproductive isolation between cryptic, sympatric lineages of a freshwater catfish (Pimelodella chagresi ). These are "cryptic" lineages because they cannot be distinguished visually on the basis of morphological characters, and currently they are recognized as a single species. Previous analyses utilizing mitochondrial DNA (mtDNA) indicated that two highly divergent lineages are present in lower Central America, and that these lineages are the result of independent colonization events from South American source populations. I isolated eight dinucleotide
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Tri, Baskoro T. S. "Cryptic species within Anopheles barbirostris Van der Wulp, 1884 : inferred from nuclear and mitochondrial gene sequence variation." Thesis, University of Liverpool, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250419.

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Van, Leeuwen Travis Edward. "Variation in metabolic rate between individuals and species : cryptic physiological tradeoffs underlying habitat partitioning and life history strategies of juvenile salmonids." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/28689.

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Physiological traits such as standard metabolic rate have been shown to vary up to half an order of magnitude between individuals and species and influence key life history tradeoffs in juvenile salmonids (e.g. smolt timing). The purpose of my thesis research was to examine the relationship between food consumption, dominance and disproportionate feeding on physiological traits and adaptive strategies of juvenile salmonids. Results show that SMR is positively correlated with food consumption and growth in juvenile coho salmon which showed a reduction in SMR under low food and an elevation i
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Bazzano, Jason. "Differences in Sexual Dimorphism and Influences of Sexual Dichromatism on Crypsis Among Populations of the Jumping Spider Habronattus oregonensis." PDXScholar, 2011. https://pdxscholar.library.pdx.edu/open_access_etds/272.

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Crypsis can be an important mechanism of predator avoidance for organisms. However, many species exhibit sexual dichromatism, in which the males possess a suite of colorations in order to attract female attention. The resulting differences in crypsis between the males and females can provide insight into the relative strengths of the sexually and naturally selective forces shaping the coloration of the organism, as well as clues regarding potential sensory biases of the selecting sex. In this study, I examine variation in the coloration of four Pacific Northwest populations of the sexually dim
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Aissaoui, Cherifa. "Les mollusques du Golfe de Gabès (Méditerranée sud-orientale) : néo-endemisme ou variations écophénotypiques ?" Thesis, Paris, Muséum national d'histoire naturelle, 2016. http://www.theses.fr/2016MNHN0014/document.

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L’originalité du golfe de Gabès (Sud de la Tunisie) a été reconnue par les malacologistes depuis le19ème siècle mais reste mal définie. Les espèces de cette région présentent des caractères morphologiques qui ont conduit à l’établissement de variétés, sous-espèces et espèces faiblement caractérisées. Certains auteurs les traitent comme des taxons endémiques tandis que d'autres les considèrent comme de simples variants locaux d'espèces à large répartition méditerranéenne. Le manque d’information concernant la valeur taxonomique de ces caractères morphologiques ne permet pas de traiter de façon
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7

Colson-Proch, Céline. "Écophysiologie évolutive en milieu aquatique souterrain : influence des variations de température sur la distribution de Niphargus rhenorhodanensis et Proasellus valdensis." Thesis, Lyon 1, 2009. http://www.theses.fr/2009LYO10195.

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La température est le paramètre abiotique qui influence de façon majoritaire les traits d’histoire de vie des espèces ectothermes. Pour appréhender les relations entre physiologie, environnement et histoire évolutive et leur influence respective sur la délimitation des aires de distribution des espèces, ce travail exploite les caractéristiques thermiques du milieu souterrain. Les résultats réfutent l’hypothèse de sténothermie des deux organismes hypogés étudiés Niphargus rhenorhodanensis et Proasellus valdensis et prouvent que l’histoire évolutive, la dispersion ou la compétition sont des para
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Cunche, Mathieu. "Codes AL-FEC hautes performances pour les canaux à effacements : variations autour des codes LDPC." Phd thesis, Grenoble, 2010. http://tel.archives-ouvertes.fr/tel-00451336.

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Nous assistons au développement rapide des solutions de diffusion de contenus sur des systèmes, où en plus des traditionnelles corruptions de l'information dans les couches basses, se pose le problème des pertes de paquets d'informations. Le besoin de fiabiliser ces systèmes de transmission a conduit à l'émergence de codes correcteurs d'effacements, qui grâce à l'ajout d'informations redondantes, permettent de reconstruire l'information perdue. Dans cette thèse nous abordons le problème de la conception de codes à effacements ayant de bonnes capacités de correction et dont les algorithmes de d
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Smith, Geneviève Kathleen. "The coexistence of ecologically similar species." 2013. http://hdl.handle.net/2152/23186.

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The biological diversity on planet Earth is astounding. Understanding the origins of this diversity, and how it is maintained, are the twin goals of ecology and evolutionary biology. An early and oft-repeated insight in this investigation is that that similar organisms cannot coexist indefinitely. Theory predicts that individuals and species will compete for limited resources and whichever has even a slight advantage will drive all others extinct in a process known as ‘competitive exclusion’. By diversifying, species avoid competition, thereby ‘stabilizing’ their coexistence. Yet natural syste
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Zhang, Bing. "Habitat selection, cryptic diversity, phylogeny, and phylogeography of the European Lepidocyrtus lanuginosus species group (Collembola: Entomobryidae)." Doctoral thesis, 2018. http://hdl.handle.net/11858/00-1735-0000-002E-E58C-1.

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