954 resultados para Protected area


Relevância:

60.00% 60.00%

Publicador:

Resumo:

A new species of Bachia of the bresslaui group, is described from Estacao Ecologica Serra Geral do Tocantins, a recently created protected area in the Central Brazilian Cerrados of state of Tocantins. The new species is most similar to Bachia psamophila from which it differs in limb morphology and head and body scalation. As in Bachia psamophila the shovel-shaped snout of the new species is highly prominent, an adaptation related to its psamophilous habits.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Os esforços de conservação ambiental têm enfrentado muitos desafios, dentre os quais a dificuldade para implementar áreas protegidas. As evidências sugerem que a criação legal de uma área protegida não é condição suficiente para sua efetiva implementação. O presente trabalho adota uma abordagem institucionalista para entender as condições que poderiam levar ao sucesso ou ao fracasso de tais áreas. O arcabouço teórico é composto por trabalhos de Direito Ambiental, Biologia da Conservação e, principalmente, da Nova Economia Institucional. Inicialmente, busca-se reunir estes diversos campos do conhecimento sob um mesmo corpo de conhecimento, a Governança ambiental. Em seguida, formula-se uma hipótese de complementaridade institucional, i.e., a possibilidade de que exista sinergia na interação entre determinadas instituições. Esta discussão é utilizada para analisar a legislação brasileira referente às Unidades de Conservação. E, por fim, as hipóteses teóricas são examinadas em um estudo de caso da região de Mata Atlântica no Vale do Ribeira, São Paulo.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

A participação de atores sociais na governabilidade e na aplicabilidade de políticas públicas no Brasil é tema recorrente em debates da gestão pública (SANTANA, 2011; TENÓRIO, 2002; NASCIMENTO, 1967), e tem sido defendida por organismos de defesa da sustentabilidade e da preservação ambiental como elemento imprescindível para a gestão de territórios naturais (VAN DE KERKHOF, 2006; UICN, 2011; HOCKINGS ET AL, 2006; BRASIL, 2013; ERVIN, 2003a; BRASIL, 2002; 2014). Para a política ambiental em vigência no Brasil, os conselhos gestores de políticas públicas, tradicionais espaços de consulta e controle social das políticas públicas, encontram-se legalmente institucionalizados como fóruns para garantir a participação de atores sociais na gestão das chamadas unidades de conservação, as UCs (BRASIL, 2000; 2002). Entretanto, o respaldo institucional não se traduz por si só em participação social na gestão destes territórios e o cenário é o de um grau reduzido de conselhos gestores em atividade. O presente trabalho assumiu o desafio de identificar os aspectos que caracterizam a efetividade dos conselhos gestores em sua atuação, sob a perspectiva dos atores que integram estes espaços. Para tanto, foi aplicada uma metodologia de caráter exploratório, adotando-se métodos de análise qualitativa a partir da aplicação de entrevistas semiestruturadas em profundidade. Com o apoio de especialistas em gestão socioambiental, identificou-se conselhos gestores apontados como referências por sua efetividade. E, a partir da perspectiva de especialistas e dos atores que integram tais conselhos gestores em atividade (stakeholders), foi possível compreender variáveis determinantes e fatores como instrumentos e dinâmicas que contribuem para uma atuação efetiva. Concluiu-se que o arcabouço legal e institucional que respalda a existência dos conselhos em unidades de conservação é significativo ao favorecer o envolvimento da sociedade civil, organizações sem fins lucrativos e poder público na gestão de áreas naturais, mas não se traduz por si só em conselhos gestores autônomos e em atividade como fóruns de consulta ou deliberação de questões de interesse para a gestão. Sob a ótica dos stakeholders, a efetividade engloba tanto as ações que geram resultados para a preservação e para o manejo sustentável dos recursos naturais quanto a própria capacidade de existir como um fórum legítimo de debates e de participação social local.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

The present work was carried out at the Atol das Rocas (3º 51 S; 33º 49 W), the only atoll of the South Atlantic and the first Brazilian marine protected area. It was guided by the following hypothesis: the composition of the fish communities varies in agreement with the position of the pools; in other words, with or without permanent ocean connection. To test the validity of this hypothesis, the fish abundance was estimated in the connected pools (Barretinha/Barreta Falsa) and unconnected ones (Cemiteriozinho/Âncoras), carrying an ecological characterization of the fishes that inhabit these pools. Additionally, the structural complexity of the sampled places was also evaluated intending to verify the variations of the abundance and diversity of fishes in function to this factor. By the fact of this research was being carried out through the limits of a conservation unit, the samples was realized using visual census techniques. The results generated through uni and multivariate analytic techniques allowed the evidence that decisive factor in the density, richness and diversity variations of fishes are linked to the substratum type (Hard / Soft bottom) and not by the fact that the pool are or are not connected permanently to the ocean. In relation to the structural complexity; 58% of the variations in the diversity of fishes were attributed to changes in the structural complexity, while 12% of the variations in the abundance were attributed to the structural complexity

Relevância:

60.00% 60.00%

Publicador:

Resumo:

This doctoral thesis addresses the environmental issues and its vinculum with the tourism through the protected natural areas, in particular the conservation units, which consists in territorial areas created and demarcated by the government in order to protect ecosystems that have a high ecological and scenic-landscaped representativeness designed to the contemplation and controlled public visitation. In regard to its use for the touristic activities, are conceived while socio-environmental and symbolic materiality built around an imagery view of a nature-show, designed to attract visitors, aiming ensure the maintenance and reproduction of the capital in an entrepreneurial and preservationist way in the Metropolitan Region of Natal. It s a study about the Dunes State Park Jornalista José Maria Alves and the Jenipabu Environmental Protected Area, both created with the purpose of favor the implantation and empowerment of the touristic area through the State intervention as the main articulator agent of a new process of urbanization that uses the city marketing and the ideological discuss of environmental sustainability to recreate the imaginary of lost paradise and incorporate into the daily universe of tourists visiting the state of Rio Grande do Norte. The unveiling of this empirical reality made possible the construction and defense of the terms environmental entrepreneurship and compensatory preservationism, to explain how the formatting and idealization of this paradisiacal scenarios produce the commoditization of nature in an efficient and competitive way

Relevância:

60.00% 60.00%

Publicador:

Resumo:

The protected culture, among other advantages, made possible to diminish the seasoning in offers and to improve the quality of vegetables. However, one consists in technology of high cost, that it may be attenuated with the increase in the efficiency of the use of the protected area, proportionated for the intercropping. The experiment was carried out at greenhouse at UNESP, Jaboticabal-SP, in the period of August and November of 2005, with the aim of evaluating the operational cost (COT) and the profitability of the crisphead lettuce "Veronica" (Lactuca sativa L.) in monoculture and in intercropping with the Japanese cucumber "Hokushin" (Cucumis sativus L.), in protected environment. The main cost items analyzed were the operational cost, the agricultural amendments and the materials cost. For the crisphead lettuce in monoculture and in intercropping, the COT was R$ 696,37 and R$ 295,06/614,4 m(2) respectively and the productivity was 822.53 and 890.78 kg/614,4 m(2). In monoculture and in intercropping the gross incomes were R$ 489,93 and R$ 452,39/614,4 m(2) respectively. It was verified a loss of R$ 206,44/614,4 m(2) in the crisphead lettuce monoculture and an operational profit of R$ 157,33/614,4 m(2) in protected environment when in intercropping with cucumber.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

60.00% 60.00%

Publicador:

Resumo:

The semiarid rainfall regime is northeastern Brazil is highly variable. Climate processes associated with rainfall are complex and their effects may represent extreme situations of drought or floods, which can have adverse effects on society and the environment. The regional economy has a significant agricultural component, which is strongly influenced by weather conditions. Maximum precipitation analysis is traditionally performed using the intensity-duration-frequency (IDF) probabilistic approach. Results from such analysis are typically used in engineering projects involving hydraulic structures such as drainage network systems and road structures. On the other hand, precipitation data analysis may require the adoption of some kind of event identification criteria. The minimum inter-event duration (IMEE) is one of the most used criteria. This study aims to analyze the effect of the IMEE on the obtained rain event properties. For this purpose, a nine-year precipitation time series (2002- 2011) was used. This data was obtained from an automatic raingauge station, installed in an environmentally protected area, Ecological Seridó Station. The results showed that adopted IMEE values has an important effect on the number of events, duration, event height, mean rainfall rate and mean inter-event duration. Furthermore, a higher occurrence of extreme events was observed for small IMEE values. Most events showed average rainfall intensity higher than 2 mm.h-1 regardless of IMEE. The storm coefficient of advance was, in most cases, within the first quartile of the event, regardless of the IMEE value. Time series analysis using partial time series made it possible to adjust the IDF equations to local characteristics

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Guided Tissue Regeneration (GTR) is a regenerative treatment modality that requires the placement of a physical barrier over a bone defect in such a way that the proliferation of the surrounding soft tissues into the barrier-protected area is prevented. Thereby in the guided osseous regeneration allowing bone-forming cells from the existent bone edges to invade the space and produce bone. The physical barriers should be biocompatible, allow cellular occlusion, maintain adequate space, tissue integration and facility in the application. They can be occlusive or permeable, absorbable or non-absorbable. Among various types of physical barriers in the market, the cellulose biosynthetic membrane is emphasizing by the necessary characteristics for GTR and to be a national product developed in low cost.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

The protected areas are created for conservation to nature. The way they associate with the communities and visitors are essential to its objectives are achieved. This study aims to analyze how tourism is developed in the. The Recifes dos Corais Protected Area (APARC) through the identification of the image that tourists and residents have with respect to Parracho of Maracajaú and knowledge of the factors that contribute to a satisfactory visit of tourists. For this was an exploratorydescriptive study with quali-quantitative approach, with 236 tourists and 70 residents of the district of Maracajaú, using questionnaires and interviews. Data analysis techniques were used and percentage of arithmetic, factor analysis and content analysis. The results showed that the importance and significance attributed by residents to Parracho related to economic gains. Information on the APARC and on their standards are not done efficiently and contribute to negatively impact the site. The profile of tourists is not the most appropriate for a protected area. The dimensions of satisfaction to the tourists demonstrated the need for actions to be undertaken by the administration of APARC. Conclude that the image that the residents and tourists have of APARC is not conducive to the image of a protected areas. The tourists are satisfied with the tour in APARC, however, the dimensions of satisfaction are not consistent with the conservation of the site

Relevância:

60.00% 60.00%

Publicador:

Resumo:

The mangrove ecosystem has a great importance to maintaining marine biodiversity, and to the livelihoods of communities living around it. Despite its importance, many mangrove areas have been extensively cleared and converted to other uses. There are few places where communities can retain their traditional uses of mangrove. A good example of conservation of traditional costumes are the fishing communities of the Sustainable Development Reserve (Reserva de Desenvolvimento Sustentável RDS) Ponta do Tubarão. The creation of the reserve came from the own population, and the devastation of a mangrove area, which would be destined for activity shrimp, was one of the reasons that led the population to ask authorities the establishment of a legally protected area. Thus, this study aimed to investigate the environmental perception of the fishing communities of RDS Ponta do Tubarão with respect to the mangroves in a biological, ecological and social perspective as well as evaluate the influence of the reserve in the mangrove conservation and quality of life. To meet objectives of this study was required the appropriation of some method and approaches of ethnosciences and environmental perception. Data were collected through direct observation, and semi-structured interviews. Through content analysis found that the population has a strong dependence on the mangrove ecosystem, as well as provides a good ecological knowledge of ecosystem functions. It was also found that the reservation has a good performance in the conservation of the mangroves; however, need to outline strategies to conciliate both the biological and cultural conservation.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

The mangrove ecosystem has a great importance to maintaining marine biodiversity, and to the livelihoods of communities living around it. Despite its importance, many mangrove areas have been extensively cleared and converted to other uses. There are few places where communities can retain their traditional uses of mangrove. A good example of conservation of traditional costumes are the fishing communities of the Sustainable Development Reserve (Reserva de Desenvolvimento Sustentável RDS) Ponta do Tubarão. The creation of the reserve came from the own population, and the devastation of a mangrove area, which would be destined for activity shrimp, was one of the reasons that led the population to ask authorities the establishment of a legally protected area. Thus, this study aimed to investigate the environmental perception of the fishing communities of RDS Ponta do Tubarão with respect to the mangroves in a biological, ecological and social perspective as well as evaluate the influence of the reserve in the mangrove conservation and quality of life. To meet objectives of this study was required the appropriation of some method and approaches of ethnosciences and environmental perception. Data were collected through direct observation, and semi-structured interviews. Through content analysis found that the population has a strong dependence on the mangrove ecosystem, as well as provides a good ecological knowledge of ecosystem functions. It was also found that the reservation has a good performance in the conservation of the mangroves; however, need to outline strategies to conciliate both the biological and cultural conservation.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)