Seasonal variation and patterns in the land snail community along a fine-scale humidity gradient in an Atlantic Rainforest remnant, Southeastern Brazil R. A. Esteves, S. B. Santos, C. F. D. Rocha Brazilian Journal of Biology, 2025 In this study, we provide the first data regarding seasonal variation and patterns along a fine-scale humidity gradient on the land snail community, including parameters such as richness and abundance, in the Sooretama Biological Reserve, Espírito Santo, Brazil. Our study was conducted from January 2017 to December 2018, covering all four seasons (summer, autumn, winter and spring). We used 24 plots of 250 m each, combined with subplots of 25 x 75 cm (to sample leaf-litter), following the RAPELD methodology. We collected 440 live specimens belonging to 35 species from 11 families. The snail species richness varied among seasons, with the highest mean values in summer and spring. The highest variation of richness occurred between summer and autumn, and the smallest variation occurred between spring and summer. Soil temperature, relative air moisture and soil moisture affected significantly the overall land snail abundance. The rainy season was hotter and wetter than the dry season and showed highest richness and abundance of species. Our results showed a clear compositional change along the moisture gradient, suggesting differences in species preference for moisture conditions even at a fine-scale.
Environmental local public policies and the development of smart cities: assessing the reality of municipalities in the Metropolitan Region of the Rio de Janeiro State using multicriteria analysis Revista Brasileira De Meio Ambiente, 2024
Snail transmitters of schistosomiasis and other mollusks of medical and economic importance at the Simplício queda Única hydroelectric plant, Southeast Brazil Monica Ammon Fernandez, Elizangela Feitosa da Silva, Rafael Alves Esteves, Silvana Carvalho Thiengo Revista Da Sociedade Brasileira De Medicina Tropical, 2018 INTRODUCTION This paper presents the results of an extensive survey of freshwater mollusks in the Simplício Queda Única Hydroelectric Development area, Southeast Brazil. METHODS Mollusks were collected between 2008 and 2013. All specimens were examined for the presence of larval trematodes. RESULTS In total, 12,507 specimens classified into 16 genera were obtained. Known snail vectors of schistosomiasis and fascioliasis and exotic species were identified, and new records are reported. CONCLUSIONS No specimens parasitized by larval trematodes of medical interest were detected. However, the results reinforce the importance of surveillance in study areas vulnerable to the occurrence of schistosomiasis transmission.
Methodological aspects of the zoobenthos application to assessment the environmental health of freshwater ecosystems using BMWP method Espacios, 2016
Analysis of environmental impacts of the production process of the ethyl biodiesel obtained from beef tallow through Life Cycle Assessment (LCA) Espacios, 2016
Analysis of the evolution of biodiesel in Brazil Espacios, 2016
