Sandy Dunes
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Structure and floristic pattern of a coastal dunes in southeastern Brazil
The Brazilian shrublands area (restinga) is composed of marine coast vegetation on Quaternary sandy plains, where the species composition can vary depending on the surrounding ecosystems. The aims of this study were to describe the structure and floristic composition of a restinga near the community of Itaúnas, in the northern part of the state of Espírito
Acta Bot. Bras.. Publicado em: 2013-03
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2. Sequence variation in the melanocortin-1 receptor (MC1R) pigmentation gene and its role in the cryptic coloration of two South American sand lizards
In reptiles, dorsal body darkness often varies with substrate color or temperature environment, and is generally presumed to be an adaptation for crypsis or thermoregulation. However, the genetic basis of pigmentation is poorly known in this group. In this study we analyzed the coding region of the melanocortin-1-receptor (MC1R) gene, and therefore its role
Genetics and Molecular Biology. Publicado em: 03/02/2012
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3. Diversidade de aves em um fragmento de restinga no Litoral Norte do Rio Grande do Sul, Brasil / Bird diversity of a Restinga area in northern coast of Rio Grande do Sul, Brazil
O litoral norte do Estado do Rio Grande do Sul vem sofrendo um aumento em sua urbanização nos últimos 30 anos, com significativas perdas de áreas naturais. As comunidades de aves dessas áreas são pouco conhecidas e seus hábitats têm sido rapidamente destruídos. Apenas alguns fragmentos preservam a vegetação de restinga original da costa do Rio Gra
Publicado em: 2010
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4. Vegetação dunar: caracterização estrutural de dunas do município de Natal-RN como subsídio para implantação de técnicas de reflorestamernto, recuperação e conservação do ecossistema
The Brazilian coast has a wide variety of complex environments and ecosystems along the coast, about 80% are represented by sandbanks and dunes. The coastal ecosystems were the first to suffer the impacts man and places, as the very fragile ecosystems, are somehow altered. Are few areas of restinga well as natural features, very few protected in conservation
Publicado em: 2009
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5. Relações entre a morfodinâmica e a utilização em trechos da costa oceânica da Ilha de Santa Catarina, SC, Brasil
This Doctorate dissertation analyzes the relation among morphodynamic characteristics of oceanic sandy beaches and the use of its coast. The study area is the oceanic coast of Santa Catarina Island, in Florianópolis, SC, southern Brazil. First of all, data about forty beach profiles, which had been monitored, were collected. Several parameters were analyzed
Publicado em: 2009
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6. Secondary production of brnthonic macrofauna in the intertidal zone in the northern segment of Una beach, on the coast of the estate of São Paulo / Produção secundária da macrofauna bentônica da zona entremarés no segmento norte da praia do Una, litoral sul do estado de São Paulo
This study has as objective to estimate the secondary production and turnover rate (P/B) of the gastropod Hastula cinerea, the isopod Excirolana armata and the decapods Austinixa patogoniensis e Callichirus major in the intertidal zone of Una beach, situated in Estação Ecológica Juréia-Itatins, on the southern coast of the state of São Paulo. For that p
Publicado em: 2008
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7. SeqÃÃncias siluro-devoniana e eocarbonÃfera da Bacia do ParnaÃba, Brasil, como anÃlogos para a explotaÃÃo de hidrocarbonetos
The present study was applied to understanding the similar hydrocarbon reservoirs on the Silurian, Devonian and Early Carboniferous sequences of the ParnaÃba Basin. The exposure investigated are located in the central area in the Piauà state. These outcrops are geologicaly inserted in the southeastern border of the ParnaÃba Basin. Three outcrops constitui
Publicado em: 2005
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8. Dinâmica Costeira dos Campos petrolíferos Macau/Serra, litoral setentrional do Estado do Rio Grande do Norte
This thesis describes the general behavior of the northern shore of the State of Rio Grande do Norte relating beach profile morphology with hydrodynamic and sedimentological parameters. The Macau and Serra Oil Field are inserted on this area and are under accelerated coastal erosion. At these oil fields are installed oil wells from PETROBRAS, nowadays locate
Publicado em: 2005
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9. Cartografia temporal e análise geoambiental da dinâmica da foz do Rio Piranhas-Açu, regiao de Macau-RN, com base em imagens Landast 5-MT
This work embraces the application of Landsat 5-TM digital images, comprising August 2 1989 and September 22 1998, for temporal mapping and geoenvironmental analysis of the dynamic of Piranhas-Açu river mouth, situated in the Macau (RN) region. After treatment using several digital processing techniques (e.g. colour composition in RGB, ratio of bands, princ
Publicado em: 2001
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10. Aspectos Morfo-Dinâmicos daComplexo Lagunar Nísia Floresta-Papeba-Guaraíras, Região Costeira Sul Oriental Do RN
This dissertation presents the results of research developed in the Nísia Floresta-Papeba-Guaraíras Lagoon Complex, located on the south coast of the Rio Grande do Norte State. The main objectives of this dissertation were the stratrigraphic characterization, in detail scale, of the and the coastal dynamics study of the lagoonal deposits sedimentation, as
Publicado em: 2000
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11. Ubiquity and Persistence of Escherichia coli in a Midwestern Coastal Stream†
Dunes Creek, a small Lake Michigan coastal stream that drains sandy aquifers and wetlands of Indiana Dunes, has chronically elevated Escherichia coli levels along the bathing beach near its outfall. This study sought to understand the sources of E. coli in Dunes Creek's central branch. A systematic survey of random and fixed sampling points of water and sedi
American Society for Microbiology.