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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 35 for “"Mammalia"”.
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Nature and Origin of Moral Agency in Mammalia
Moral philosophers often claim that animals lack the basic capacities needed for morality. However, with no account that states the minimal requirements for being a moral agent, that claim is vulnerable. After developing such an account, the dissertation shows that many species of mammals satisfy …
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Strukturelle und funktionale Analyse des DAZL1-Locus in Mammalia
… Analyse des DAZL1-Gens in verschiedenen Mammalia wurden zunächst Southern-Blot-Experimente mit genomischer DNA von Mensch, Gibbon, Callithrix jacchus, Maus und Rind durchgeführt. Die Homologie der genomischen DAZL1-Region ist in Altweltaffen und Mensch größer als in Neuweltaffen. Die …
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Phylogeny and Evolution of Locomotor Modes in Carnivoramorpha (Mammalia)
Contained in this thesis are seven chapters, five each with a specific scientific focus relating to the study of basal carnivoramorphans or the evolution of locomotion. Presented here is the first detailed description of the only known postcranial skeletal elements of "Miacis" uintensis, found to …
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Evolução da força de mordida, encefalização e socialidade em canídeos (Carnívora: Mammalia)
As formas em que as diferenças taxonômicas na morfologia, comportamento ou história de vida se relacionam uns com os outros têm sido usadas regularmente para testar idéias sobre forças seletivas envolvidas na sua evolução. A comparação entre espécies é a técnica mais utilizada para examinar como os …
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Estudo da morfologia dentária de Xenorhinotherium bahiense Cartelle & Lessa, 1988 (Mammalia, Litopterna, Macraucheniidae)
A variação da dentição dos mamíferos permite obter informações sobre idade, dieta e relações de parentesco. Além disso, os dentes são constituídos por tecidos altamente resistentes que, por consequência, provêm abundante representatividade no registro fossilífero. Esses fatos tornam o estudo da …
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Diferenciação craniana infraespecífica em Proechimys iheringi Thomas e Proechimys dimidiatus (Guenter) (Mammalia: Rodentia: Echimyidae)
The genus Proechimys is one of the most diversified groups among the neotropical rodents, and also one of the most poorly understood. This genus was subdivided by Moojen (1948) into two subgenera , namely the subgenus Proechimys and the subgenus Trinomys on the basis of the length of the main fold …
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Morfologia comparada do estômago e da junção gastroduodenal de morcegos da família Phyllostomidae (Mammalia, Chiroptera)
Comparative morphological study of the stomach and the gastroduodenal junction is undertaken in 12 genera of bats representing five sub-families of the family Phyllostomidae. We dissected and prepared histological sections of the stomach and gastroduodenal junction of 80 microchiropteran specimens. …
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Ecologia alimentar de morcegos insetívoros de área urbana do município do Rio de Janeiro, RJ (Mammalia: Chiroptera)
This dissertation reports on the feeding ecology of insectivorous bats from urban areas of county of Rio de Janeiro, state of Rio de Janeiro, Brazil. The study was carried out between November of 1991 and July of 1993. The most frequently captured species were the following: Myotis nigricans …
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Extreme Variation in the Sagittal Crest of Tapirus polkensis (Mammalia Perissodactyla) at the Gray Fossil Site Northeastern TN.
<p>The preservation and quantity of fossil tapirs (<em>Tapirus polkensis</em>) from the Gray Fossil Site in northeastern Tennessee provides a unique opportunity for comparison and analysis of skeletal characters. Intraspecifically, modern tapirs show little to no variation in the morphology of the …
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Esquilos Sciurus alphonsei (Mammalia: Rodentia) como dispersores de Attalea oleifera (Arecaceae) em remanescente da Floresta Atlântica Nordestina, Brasil
Este estudo investigou o papel do esquilo, Sciurus alphonsei, como dispersor de frutos de Attalea oleifera em um remanescente da floresta Atlântica do Nordeste brasileiro. Durante 4 meses as visitas de esquilos foram monitoradas em 15 palmeiras, perfazendo 118 horas de observação planta focal, com …
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Assessing the information content of fossilizable data, with a focus on the Asian origin and diversification of Glires (Mammalia)
My thesis explores how the information content of fossil Glires (rodents + rabbits) effects phylogenetic reconstruction and the implications for downstream analysis and interpretation. The first two chapters take a detailed look at the phylogenetic signal contained within fossil Glires, while the …
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An analysis of the evolution of life history traits
… datasets to create a collection of 777 Mammalia species across five taxonomic orders (Artiodactyla, Carnivora, Chiroptera, Primates, Rodentia) to examine the relationships between size, longevity, maturity age, and number of offspring, both within the taxonomic orders and across the …
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Infecções por Trypanosoma sp. (Protozoa; Trypanosomatida) em micos-leões-dourados Leontopithecus rosalia (Mammalia; Primates) da Mata Atlântica do Rio de Janeiro
Primatas não-humanos são naturalmente infectados por tripanosomatídeos, como Trypanosoma cruzi, T. rangeli e T. minasense. O mico-leão-dourado (MLD, Leontopithecus rosalia) é endêmico da Mata Atlântica, símbolo internacional de conservação e tem sido descrito como reservatório de T. cruzi desde …
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Tetrapod phylogeny as inferred from 18S and 28S ribosomal-RNA sequence comparisons
… 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 living forms has provided a definitive solution.
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Tapirus terrestris (Linnaeus, 1758) (Mammalia, Perissodactyla) em uma área de floresta subtropical no sul do Brasil: dieta, uso da área e densidade populacional
This study presents an analysis of a data set concerning habitat use, diet, seed-dispersal role, and density of the lowland tapir (Tapirus terrestris L.) population from the Parque Florestal Estadual do Turvo in the subtropical forest of the upper Uruguay river basin, Rio Grande do Sul State, …
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Ocorrência e uso de habitat da baleia-de-Bryde (Balaenoptera edeni Anderson, 1878) (Mammalia: Cetacea, Balaenopteridae) na região de ressurgência de Cabo Frio, RJ
Bryde's whale occurrence has been commonly related to upwelling ecosystems in different areas. But there are deficient data about the biology and behavior of this rorqual restricted to the tropics. The distance sampling method was used between 2000 and 2003, by the Grupo de Estudos de Mamíferos …
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Etude comparée de l’écologie de deux espèces jumelles de Chiroptères (Mammalia : Chiroptera ) en Belgique: l’oreillard roux (Plecotus auritus) (Linn., 1758) et l’oreillard gris (Plecotus austriacus ) (Fischer, 1829).
Introduction The purpose of this study is to verify one of the principal rules of ecology: the principle of exclusive competition, by using the sibling species of long-eared bats present in Belgium as a model: the brown long-eared bat (Plecotus auritus) and the grey long-eared bat (Plecotus …
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Veados-campeiros (Ozotoceros bezoarticus (Linnaeus, 1758)) (Mammalia : Cervidae) no nordeste do Pantanal do Mato Grosso (RPPN SESC Pantanal), Barão de Melgaço, MT : densidade, tamanho populacional e uso dos hábitats
Ozotoceros bezoarticus (pampas deer) is a South American deer associated to open habitats. The species avoids closed formations. The reduction of habitats has drive the speeies to near the extinction threat. The present study aims to estimate the population density, size and habitat preferences in …
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