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Showing 1 to 20 of 23 for “"Squamata"”.
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Phylogeny and evolution of Lerista (Lygosominae, Scincidae, Squamata).
In this thesis, I investigate the phylogeny and evolution of Lerista, a clade of more than 75 species of scincid lizards, distributed in arid, semi-arid, and seasonally dry habitats throughout Australia. Among extant tetrapods, Lerista is exceptional in comprising a large number of closely-related …
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Molecular Systematics & Evolution of the CTENOSAURA HEMILOPHA Complex (SQUAMATA: IGUANIDAE)
<p>Molecular variation within <em>Ctenosaura hemilopha</em> and among other <em>Ctenosaura</em> species are used to identify species boundaries, assess suitable systematic characters, identify evolutionary patterns within <em>C. hemilopha</em> mitochondrial DNA sequences and reconstruct species and …
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Studies on the Life History of Lepidodermella Squamata (Dujardin, 1841)
Made available in DSpace on 2014-12-04T22:45:47Z (GMT). No. of bitstreams: 1 0006979.pdf: 3650701 bytes, checksum: b2fc99ecfd1ad12264abaa6856f01a28 (MD5) Previous issue date: 1953
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Vztah mezi velikostí vajec a dobou inkubace u gekonů (Squamata: Gekkota)
Předchozí studie vztahu mezi velikostí vejce a dobou embryonálního vývinu ukazovaly pozitivní korelaci mezi oběma veličinami na mezidruhové úrovni, tudíž se nabízí myšlenka, že doba vývinu by mohla být limitujícím faktorem pro zvětšování velikosti vajec během evoluce. Některé výzkumy plazů na …
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Systematics and Species Delimitation in New Guinea Skink Species Complexes (Squamata: Scincidae)
<p>Though among the most controversial topics in systematic and evolutionary biology, species are a fundamental unit in biology, and are utilized by and critical to a wide variety of studies in the life sciences. Despite this importance, little work has focused on developing and examining objective …
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Distribuição espaço-temporal de Scolelepsis cf. squamata (Muller, 1808) (Polychaeta: Spionidae) como ferramenta para estudos da dinâmica sedimentar costeira
… of the spionid polychaete Scolelepis cf. squamata was studied on Dois Rios beach, an embayed oceanic beach located at Ilha Grande (a coastal island), at the southeastern Brazilian coast. The relationship between beach morphodynamics and the spatial-temporal distribution of this species …
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Comparative chemical ecology, behaviour, and evolutionary genetics of acanthodactlylus boskianus (Squamata: Lacertidae) : comparative chemical ecology, behaviour and evolution
Acanthodactylus boskianus is a common lizard species frequently occurring in different habitats throughout Egypt. Both males and females have well developed epidermal femoral glands. This species is territorial and males acquire dominance hierarchies in captivity. The current work included three …
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Estudo taxonômico dos "lagartos" fósseis (Lepidosauria: Squamata) da Bacia de São José de Itaboraí (Paleoceno), estado do Rio de Janeiro
ln this dissertation 84 selected "lizard" specimens of the Paleocene deposits from the São José de Itaboraí Basin were studied. The material consists of isolated, sometimes incomplete, premaxillae, maxillae and dentaries. Seven taxa were recognized as follows: Iguania incertae sedis (new gen. and …
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Morfologia e ultra-estrutura do oviduto de Hemidactylus mabouia (Moreau de Jonnès, 1818) (Reptilia, Squamata, Sauria, Gekkonidae) durante o ciclo reprodutivo
… está inserido na família Gekkonidae e na ordem Squamata. A estrutura do oviduto de lagartixas da espécie Hemidactylus mabouia foi analisada ao microscópio eletrônico de varredura e ao microscópio de luz através de técnicas de rotina e histoquímicas, que evidenciaram a presença de quatro regiões …
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Estudo histoquímico e ultra-estrutural das fibras do sistema colágeno na glândula de veneno de Bothrops jararaca (Wied, 1824) (Reptilia, Squamata)
It was studied through optical and eletronic transmission microscopy fragments of the main portion of the venom gland from Bothrops jararaca obtained at 6hs, 4, 8 and 45 days after manual extraction of the venom. The objective of this thesis was to identify some extracellular matrix components of …
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Ein neuer Syntheseweg für wertvolle Fettsäuren in Saccharomyces cerevisiae und Arabidopsis thaliana
… wurden aus den Mikroalgen Mantoniella squamata und Ostreococcus tauri isoliert und die rekombinanten Enzyme durch heterologe Expression in Hefe charakterisiert. Eine neue Δ6-Desaturase aus M. squamata zeigte ausgeprägte Spezifität für die Umsetzung von ω3-Substraten, was beim …
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Tetrapod phylogeny as inferred from 18S and 28S ribosomal-RNA sequence comparisons
… taxa: Anura, Urodela, Gymnophiona, Testudinata, Squamata, Rhychocephalia, Crocodilia, Aves and Mammalia. The relationships among these groups, however, is controversial. Neither paleontological evidence nor morphological, physiological, biochemical or available macromolecular sequence data from …
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Sistemática das espécies brasileiras oceladas de Trichorhina Budde-Lund, 1908 (Crustacea, Isopoda Oniscidea)
… the need of a replacement name for trichorhina squamata (Verhoeff, 1933), junior secondary homonym of Trichorhina squamata Verhoeff, 1926. Trichorhina yucatanensis Hulaik, 1960 is newly considered a junior subjective synonym of Porcellio pearsei Creaser, 1938, currently included in Trichorhina. …
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Evolution in Neotropical Herpetofauna: Species Boundaries in High Andean Frogs and Evolutionary Genetics in the Lava Lizard Genus Microlophus (Squamata: tropiduridae): A History of Colonization and Dispersal
<p>In this collection of papers I have summarized my investigations into the field of evolutionary genetics and more specifically into patterns of biodiversity and evolutionary processes. The lizards (and frogs) studied here share common features in that they are largely present in unique …
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Rise of present-day tetrapods in the paleotropics of Late Triassic equatorial Pangaea: new insights from microvertebrate data
… Salientia, Caudata, Gymnophiona, Mammaliaformes, Squamata, Rhynchocephalia, Testudinata, Crocodylomorpha, and Dinosauria). With few exceptions, only the LTF assemblage survives the end-Triassic Extinction (~201.5 Ma), highlighting the Late Triassic (~227–201.5 Ma) record as essential for …
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Identifizierung und funktionale Charakterisierung neuartiger Acyltransferasen aus Mikroalgen
… Vertreter der LPAAT-Familie aus M. squamata und P. patens scheinen dabei nicht an dem Fettsäuretransfer zwischen dem PtdCho-Pool und dem Acyl-CoA-Pool teilzuhaben. Dagegen zeigte die neuartige OlLPCAT aus O. lucimarinus, dass sie das Zusammenspiel von PtdCho-abhängigen …
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Caracterização da diversidade biológica de macrobentos e do tipo e estado morfodinâmico de cinco praias do litoral nordestino do Brasil
… Hemipodia simplex, Orbinia, Scolelepis squamata e Scolelepis goodbodyi estão fortemente relacionados a praias que possuem características semelhantes à Ilha do Amor, isto é, sedimentos mais finos e estados mais dissipativos. Enquanto que os táxons Protodrilus e Eteone apresentam fortes …
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Evolución de la retención de la puesta y transición al viviparismo en la lagartija de turbera, Zootoca vivípara
… de turbera, Zootoca vivipara (Jacquin, 1797) (Squamata: Lacertidae). Se trata de una de las tres únicas especies de amniotas que presentan bimodalidad reproductora intraespecífica, es decir, mantiene poblaciones ovíparas, todas situadas en el límite suroccidental de su amplia área de …
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