Avaliação Das Potencialidades E Fragilidades Das Áreas De Manguezal Para a Implementação Do Ecoturismo Usando Ferramentas De Sensoriamento

Costa, Mauro Renan Pereira; Alcântara, Enner; Amorim, Alexsandro de Jesus Ericeira; Mochel, Flávia Rebelo

doi:10.14393/rcg71715409

Cited by 2 publications

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“…With this type of information, different types of information can be generated from band combinations and calculations. Geoprocessing, on the other hand, brings users closer to these data for processing and development of their applications, where they are provided with the tools for spatial analysis (CARVALHO et al, 2015;COSTA et al, 2006;GRIGIO, 2003).…”

Section: Introductionmentioning

confidence: 99%

Spatio-Temporal Evolution of Environmental Dynamics in Guaratiba State Biological Reserve and Its Surroundings, Rio De Janeiro, Brazil

Santos

Vargas²,

Carvalho³

et al. 2022

RCG

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Mangrove is a coastal ecosystem that suffers from the growth of urban areas. We aim to study the environmental dynamics of the State Biological Reserve of Guaratiba-RJ and its surroundings, between 1990 and 2019, when there was great development in the region. Landsat images from 1990 and 2019, orthophotos from the Brazilian Institute of Geography and Statistics (IBGE), and field research were used. The methodology used the Normalized Difference Vegetation Index (NDVI), Normalized Difference Index on Built-up Areas (NDBI), and the Anthropic Transformation Index (ITA). The results showed that the mangrove area that was 16.07 km² in 1990 increased to 19.95 km² in 2019, the hypersaline areas went from 10.49 km² in 1990 to 7.08 km², and the built-up areas from 9.40 km² in 1990 to 24.73 km² in 2019. Variations occurred between mangrove areas (24.14%) and hypersaline areas (-32.51%), where there was migration of mangrove to these areas. The ITA was 4.13 in 1990 and 4.15 in 2019, varying 0.02, classified as Low Degraded. Geotechnologies showed good results in monitoring the reserve. The study showed the importance of the protection area, which mainly enabled the growth of the mangrove area and creation of barrier for built-up areas.

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Section: Introductionmentioning

confidence: 99%

Spatio-Temporal Evolution of Environmental Dynamics in Guaratiba State Biological Reserve and Its Surroundings, Rio De Janeiro, Brazil

Santos

Vargas²,

Carvalho³

et al. 2022

RCG

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Environmental Factors and Ecosystems Associated with Canine Visceral Leishmaniasis in Northeastern Brazil

Costa

Soares

et al. 2015

Vector-Borne and Zoonotic Diseases

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Environment influences the composition, distribution, and behavior of the vectors and mammalian hosts involved in the transmission of visceral leishmaniasis (VL), affecting the epidemiology of the disease. In Brazil, the urbanization process and canine cases of VL are indicators for local health authorities. This study aimed to investigate the occurrence of the canine visceral leishmaniasis (CVL) in Maranhão State, Brazil. Blood samples collected from 960 dogs from six municipalities and six different ecosystems (Baixada Maranhense, Mangue, Mata dos Cocais, Amazônia, Cerrado, and Restinga) to serological tests (enzyme-linked immunosorbent assay [ELISA], indirect fluorescence antibody test [IFAT], and chromatographic immunoassay methods [Dual Path Platform technology, DPP(®)]) and parasitological diagnosis. From serological tests, 11.14% (107) of the dogs were positive for CVL, with 59.16% (568), 14.5% (148), and 131% (126) positives to ELISA, DPP, and IFAT tests, respectively. Only seven animals (0.73%) were positive in a parasitological test. We also performed parasite isolation and phylogenetic characterization. All isolates of dogs obtained from Maranhão were grouped in a single branch with Leishmania infantum chagasi from Brazil. The ecosystem Amazonia presented the highest positivity rates to CVL in serological and parasitological tests. Brazilian biomes/ecosystems suffer large degradation and may favor, depending on climatic conditions, the installation of new diseases. In the case of VL, dogs are reservoirs of parasites and sentinels for human infection.

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Avaliação Das Potencialidades E Fragilidades Das Áreas De Manguezal Para a Implementação Do Ecoturismo Usando Ferramentas De Sensoriamento

Cited by 2 publications

References 0 publications

Spatio-Temporal Evolution of Environmental Dynamics in Guaratiba State Biological Reserve and Its Surroundings, Rio De Janeiro, Brazil

Spatio-Temporal Evolution of Environmental Dynamics in Guaratiba State Biological Reserve and Its Surroundings, Rio De Janeiro, Brazil

Environmental Factors and Ecosystems Associated with Canine Visceral Leishmaniasis in Northeastern Brazil

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