Jorge Luiz Nessimian
Federal University of Rio de Janeiro
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Jorge Luiz Nessimian.
Hydrobiologia | 2004
Daniel Forsin Buss; Darcilio Fernandes Baptista; Jorge Luiz Nessimian; Mariana Egler
Structure and composition of benthic macroinvertebrate assemblages were investigated in seven sampling sites with a gradient of environmental integrity and water quality conditions. Composite samples of the four most representative substrates were collected in order to characterize the riffle-pool dynamic in each sampling site. Spatial and temporal variability of macroinvertebrate assemblages were analyzed at two scales: using substrates and grouping samples for comparing sampling sites. Distribution of macroinvertebrates was influenced primarily by substrate type, but also by environmental integrity, water quality and sampling period. Species occurrence was highly dependent on substrate type. At local spatial scale, environmental degradation measured by the Riparian Channel Environmental Inventory and water chemistry were the determinants of assemblage patterns. We evaluated to which extent the substrates were influenced by environmental integrity and water chemistry, and we found that degradation influenced significantly the macroinvertebrate fauna on the four substrate types, although they were not responding to the same variables. Our results show that qualitatively communities were not influenced by seasonal changes, but abundance was stochastically dependent on rainfall.
Hydrobiologia | 2007
Darcilio Fernandes Baptista; Daniel Forsin Buss; Mariana Egler; Alexandre Giovanelli; Mariana P. Silveira; Jorge Luiz Nessimian
This study describes the application of a protocol for biological assessment of water quality at first to third order streams at Serra dos Órgãos, an area covered by Atlantic Forest in Rio de Janeiro State, Brazil. Major impacts in the region are domestic effluents and deforestation. Our main objective is to establish biocriteria for the establishment of the Serra dos Órgãos Multimetric Index (SOMI) based on benthic macroinvertebrates. We used data from previous studies, sampled by experienced biologists, from 1999 through 2002. The benthic macroinvertebrate community was sampled in 12 reference sites and seven impaired sites in three river basins: Guapimirim, Macaé and Grande, all from the same bioregion. From the 22 tested metrics, 6 were included in the SOMI (% Diptera, % Coleoptera, Family Taxa, EPT Taxa, BMWP-CETEC and % Shredders). Scores (5, 3 or 1) were developed for these metrics to allow for aggregation into the index. Seven intermediately impaired sites were used for evaluating the applicability of the multimetric index. We concluded that the SOMI is a robust easy-to-apply tool for biomonitoring programs in the Serra dos Órgãos region, south-east Brazil.
Hydrobiologia | 2002
Daniel Forsin Buss; Darcilio Fernandes Baptista; Mariana P. Silveira; Jorge Luiz Nessimian; Luís Fernando M. Dorvillé
Benthic macroinvertebrate assemblages, water chemistry variables and environmental degradation were investigated in an Atlantic Forest region in Brazil. Seven sites of the Guapimirim river basin were studied during three sampling periods based on the rain regime: end of wet season (May 1998), dry season (August 1998), and wet season (January 1999). Four substrates were collected at each site: sand, stony substrates, litter in pool areas and litter in riffle areas. Relationships between macroinvertebrate assemblages, water chemistry variables and environmental degradation were examined using canonical correspondence analysis (CCA). According to CCA, concentrations of dissolved oxygen and chloride, and the environmental degradation, measured by the Riparian Channel Environment index, exhibited the strongest relationship to macroinvertebrate assemblages. Overall, the loss of community diversity measured by the Shannon Index along the degradation gradient was observed. Some taxa were shown to be sensitive to water pollution, especially among Plecoptera, Trichoptera, Coleoptera and some Ephemeroptera, while others such as Simuliidae, Odonata and molluscs were tolerant to moderate levels of pollutants. The Chironomidae were the only group tolerant to a high level of pollutants and degradation.
Revista Brasileira De Entomologia | 2005
Ana Maria Pes; Neusa Hamada; Jorge Luiz Nessimian
Keys for identification of larvae to families and genera of Trichoptera of Central Amazonia are presented.
Cadernos De Saude Publica | 2003
Daniel Forsin Buss; Darcilio Fernandes Baptista; Jorge Luiz Nessimian
Biomonitoring is defined as the systematic use of biological responses to assess environmental changes, usually anthropogenic impacts. In this article we present the conceptual basis and a brief history of biomonitoring as an assessment tool for environmental health. Considering the drawbacks of physical and chemical parameters to assess environmental quality, we pinpoint the need to integrate these analyses with information provided by biological monitoring. The application of biomonitoring in Brazil would help watershed managers and policy-makers to reduce costs, increase the efficiency of analyses, and simplify the results, allowing community participation through volunteer monitoring programs.Biomonitoring is defined as the systematic use of biological responses to assess environmental changes, usually anthropogenic impacts. In this article we present the conceptual basis and a brief history of biomonitoring as an assessment tool for environmental health. Considering the drawbacks of physical and chemical parameters to assess environmental quality, we pinpoint the need to integrate these analyses with information provided by biological monitoring. The application of biomonitoring in Brazil would help watershed managers and policy-makers to reduce costs, increase the efficiency of analyses, and simplify the results, allowing community participation through volunteer monitoring programs.
Philosophical Transactions of the Royal Society B | 2013
Toby A. Gardner; Joice Ferreira; Jos Barlow; Alexander C. Lees; Luke Parry; Ima Célia Guimarães Vieira; Erika Berenguer; Ricardo Abramovay; Alexandre Aleixo; Christian Borges Andretti; Luiz E. O. C. Aragão; Ivanei S. Araujo; Williams Souza de Ávila; Richard D. Bardgett; Mateus Batistella; Rodrigo Anzolin Begotti; Troy Beldini; Driss Ezzine de Blas; Rodrigo Fagundes Braga; Danielle L. Braga; Janaína Gomes de Brito; Plínio Barbosa de Camargo; Fabiane Campos dos Santos; Vívian Campos de Oliveira; Amanda Cardoso Nunes Cordeiro; Thiago Moreira Cardoso; Déborah Reis de Carvalho; Sergio Castelani; Júlio Cézar Mário Chaul; Carlos Eduardo Pellegrino Cerri
Science has a critical role to play in guiding more sustainable development trajectories. Here, we present the Sustainable Amazon Network (Rede Amazônia Sustentável, RAS): a multidisciplinary research initiative involving more than 30 partner organizations working to assess both social and ecological dimensions of land-use sustainability in eastern Brazilian Amazonia. The research approach adopted by RAS offers three advantages for addressing land-use sustainability problems: (i) the collection of synchronized and co-located ecological and socioeconomic data across broad gradients of past and present human use; (ii) a nested sampling design to aid comparison of ecological and socioeconomic conditions associated with different land uses across local, landscape and regional scales; and (iii) a strong engagement with a wide variety of actors and non-research institutions. Here, we elaborate on these key features, and identify the ways in which RAS can help in highlighting those problems in most urgent need of attention, and in guiding improvements in land-use sustainability in Amazonia and elsewhere in the tropics. We also discuss some of the practical lessons, limitations and realities faced during the development of the RAS initiative so far.
Brazilian Journal of Biology | 2003
A. L. Henriques-Oliveira; Jorge Luiz Nessimian; L. F. M. Dorvillé
Chironomids larvae are frequently one of the most abundant and diverse groups of insects in several kinds of aquatic environments. Also, they play a major role in the aquatic food webs, representing a major link among producers and secondary consumers. This work investigates the feeding behavior of the chironomid larvae present in the Rio da Fazenda, situated in the Parque Nacional da Tijuca, Rio de Janeiro, Brazil, between August 1994 and May 1995. Algae, fungi, pollen, leaf and wood fragments, animal remains, detritus and silt were the main gut contents found in the larvae studied. The main food item ingested by the larvae was detritus, except for the Stenochironomus whose main food source was leaf and wood fragments. Tanypodinae exhibited a large quantity of animal remains of several kinds in the diet. During the period studied it was observed that the diet of 16 genera (out of 24 studied) varied. Tanypodinae had mainly coarse particulate organic matter (> 1 mm) in the gut contents, while Chironominae and Orthocladiinae had fine particulate organic matter (< 1 mm).
Revista Brasileira De Biologia | 2001
Darcilio Fernandes Baptista; D. F. Buss; Luís Fernando M. Dorvillé; Jorge Luiz Nessimian
Diversity and habitat preference of macroinvertebrates were studied in Macaé River basin, Rio de Janeiro State, Brazil, along its longitudinal gradient. We selected stream reaches corresponding to 1st, 2nd, 4th, 5th and 6th orders. A Surber sampler was used to collect four macroinvertebrates samples of each substrate (sand, litter in pool areas, stones, and litter in riffle areas) during the three sampling periods, defined based on the rain regime: April (end of the rainy season), July (dry season), and October (beginning of the rainy season). We identified 46,431 specimens corresponding to 117 taxa. Analysis of diversity numbers (both for family or genus level) indicated that all insect taxonomic orders had higher numbers on 2nd order stream reach, except for Ephemeroptera, on 4th order. However when considering morph-species taxonomic level, the higher diversity number occurred on 4th order stream. The highest richness and diversity numbers were found at the dry season. Considering habitat preference, both litter in pool areas and litter in riffle areas had the highest faunal richness.
Studies on Neotropical Fauna and Environment | 2002
Paula Soares Pinheiro; Fábio Martins Vilar de Carvalho; Fernando A. S. Fernandez; Jorge Luiz Nessimian
The diet of the marsupial Micoureus demerarae was studied from fecal samples obtained from live-trapping in Atlantic Coastal Forest fragments at Poço das Antas Biological Reserve, southeastern Brazil, from 1995 to 1997. Among arthropods, the most frequent food items belonged to the orders Coleoptera and Hymenoptera, whereas Arachnida, Orthoptera, Hemiptera and Lepidoptera were also frequent. Lepidoptera and Diptera were represented mostly by larvae and pupae. Crustaceans of the orders Copepoda and Isopoda were also found. Plants were represented by seeds of species from secondary vegetation, mostly belonging to the families Piperaceae, Moraceae and Cecropiaceae, which should reflect frugivory. Predominance of arthropods in the diet was consistent with previous studies. Diet composition was remarkably constant among fragments, sexes, age classes, breeding versus non-breeding seasons, and climatic categories (dry versus humid months). The only significant difference was that diversity of arthropods was higher in the non-breeding than in the breeding season, but this was likely to be due to sampling effects. Given the natural abundances of the food items, the constancy of the diet is likely to reflect opportunism rather than food selection.
Revista Brasileira De Entomologia | 2007
Maria Inês Da Silva Dos Passos; Jorge Luiz Nessimian; Nelson Ferreira Júnior
Illustrated keys for identification of larvae and adult of elmid genera from Rio de Janeiro state are presented. Brief morphological characterization for larval and adult forms for each genus are presented.