Dunes
Mostrando 1-12 de 88 artigos, teses e dissertações.
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1. Analysis of the Levels of Alteration of Aquifers Caused by the Installation of Wind Farms on Dunes on the Coast of Ceará, Brazil
Resumo A pesquisa objetivou avaliar os níveis de alteração dos aquíferos a partir da instalação de parques eólicos sobre dunas no litoral do Ceará por meio dos métodos de vulnerabilidade GOD e POSH, fluxo subterrâneo e aplicação da análise multivariada para subsidiar no monitoramento da qualidade da água subterrânea na área. Foram realizadas
Rev. Ambient. Água. Publicado em: 25/11/2019
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2. “FAVELA” TERRITORY (IES) AND SOCIO-ENVIRONMENTAL CONFLICTS: IN THE ARVOREDO COMMUNITY, FLORIANÓPOLIS-SC
Resumo Os estudos que envolvem as comunidades segregadas em favelas são constantes nos meios acadêmicos por envolverem um número crescente da população. Eles se constituem também no maior desafio urbano dos países latino americanos, cujo fenômeno carece de compreensão e soluções. Este artigo se propõe a identificar as formas de territorializaçã
Ambient. soc.. Publicado em: 26/08/2019
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3. Experimental bedforms by saline density currents
Abstract Bedforms are sedimentary features that can be generated on the seafloor by the interaction between density currents and mobile beds. Developing knowledge about the hydraulic and sedimentary processes involved during these events is in the interest of research groups and oil companies. Because of the magnitude of the density currents in its natural e
Braz. J. Geol.. Publicado em: 20/05/2019
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4. The importance of climate scenarios in setting the productivity indexes in the Pampa Arenosa sub-region of the province of Buenos Aires, Argentina
Resumo A partir da década de 70, a sub-região Pampa Arenosa experimentou um aumento no seu regime de água, o que permitiu o crescimento da área dedicada à agricultura de secas. Em vista da intensificação da atividade agrícola, uma avaliação da terra é uma ferramenta estratégica essencial para o planejamento. O objetivo do trabalho foi destacar a
Rev. Ambient. Água. Publicado em: 11/03/2019
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5. Tripartite symbiosis of Sophora tomentosa, rhizobia and arbuscular mycorhizal fungi
ABSTRACT Sophora tomentosa is a pantropical legume species with potential for recovery of areas degraded by salinization, and for stabilization of sand dunes. However, few studies on this species have been carried out, and none regarding its symbiotic relationship with beneficial soil microorganisms. Therefore, this study aimed to evaluate the diversity of n
Braz. J. Microbiol.. Publicado em: 2017-12
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6. Species richness and activity pattern of bees (Hymenoptera, Apidae) in the restinga area of Lençóis Maranhenses National Park, Barreirinhas, Maranhão, Brazil
ABSTRACT The Apidae community structure was studied in a vegetated area of coastal dunes in Lençóis Maranhenses National Park. Collections were performed monthly from August 2009 to July 2010. The collection methods included the use of entomological nets on flowers and Moerike traps. In total, 1211 individuals belonging to 59 species were collected. The pa
Rev. Bras. entomol.. Publicado em: 2016-12
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7. Behavior and identification of ephemeral sand dunes at the backshore zone using video images
ABSTRACT The backshore zone is transitional environment strongly affected by ocean, air and sand movements. On dissipative beaches, the formation of ephemeral dunes over the backshore zone plays significant contribution in the beach morphodynamics and sediment budget. The aim of this work is to describe a novel method to identify ephemeral dunes in the backs
An. Acad. Bras. Ciênc.. Publicado em: 01/09/2016
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8. 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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9. Plant facilitation and its implications for the dynamics and restoration of coastal dunes / Facilitação entre plantas e suas implicações para a dinâmica e restauração de restingas
Nas últimas duas décadas estudos empíricos têm demonstrado a importância da facilitação entre plantas, especialmente sob condições ambientais severas. Tal constatação inspirou a proposição da hipótese do gradiente de estresse (HGE), um modelo conceitual que prediz que a freqüência relativa entre facilitação e competição deve variar invers
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/06/2012
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10. Feeding ecology of the pygmy gecko Coleodactylus natalensis (Squamata: Sphaerodactylidae) in the Brazilian Atlantic Forest
We studied the feeding ecology of a population of Coleodactylus natalensis Freire, 1999, an endemic gecko of Atlantic Forest fragments in the state of Rio Grande do Norte, northeastern Brazil. Lizards (N = 49) were collected manually through active search in the four habitats of Parque Estadual Dunas de Natal, type locality of the species. In the laboratory,
Zoologia (Curitiba). Publicado em: 2012-08
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11. Numerical prediction of bed-load and surface deformation on a granular bed sheared by a turbulent boundary-layer
The entrainment of solid particles by a fluid flow is frequently found in nature and in industry. A better knowledge of this is of importance to understand the physical nature of the phenomenon and to improve industrial processes. Bed-load occurs if the shear stresses exerted by the fluid on the granular bed are bounded to some limits: a mobile granular laye
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2012-03
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12. 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