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| Registros recuperados: 23 | |
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| Dumas,Leandro Lourenço; Nessimian,Jorge Luiz. |
| A new species of Cernotina (Trichoptera, Polycentropodidae) from the Atlantic Forest, Rio de Janeiro State, southeastern Brazil. Cernotina Ross, 1938, with 64 extant species, is a New World genus of caddisflies. In Brazil, there are 31 described species of which 28 are recorded from the Amazon basin. Cernotina puri sp. nov. is described and figured based on specimens collected in the Atlantic Forest, Rio de Janeiro State, Brazil. The new species can be distinguished by the shape of the intermediate appendages and tergum X. The immature stages of C. puri are unknown. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caddisflies; Cernotina puri; Neotropical Region; Taxonomy. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000100006 |
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| Moreira,Felipe Ferraz Figueiredo; Ribeiro,José Ricardo Inacio; Nessimian,Jorge Luiz. |
| Hydrometra argentina Berg, 1879, H. caraiba Guérin-Méneville, 1857 and H. guianana Hungerford & Evans, 1934 are newly recorded in the Amazon River floodplain, Brazil. A redescription of H. argentina is also given, as the original description is incomplete. A key to the three known species occurring in this region is provided. Hydrometra argentina can be distinguished from H. caraiba and H. guianana by the body length smaller than 12.50 mm, anteoculus/postoculus ratio between 1.80 and 2.00, clypeus narrow and conical, metacetabulum with no circular pits, and projections on male abdominal sternite VI in the shape of simple spines. The other species can be distinguished mainly by the anteoculus/postoculus ratio and position of projections on male... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Aquatic insects; Gerromorpha; Neotropics; Taxonomy. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262009000100017 |
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| Henriques-Oliveira,Ana Lucia; Nessimian,Jorge Luiz. |
| Aquatic macroinvertebrate diversity and composition in streams along an altitudinal gradient in Southeastern Brazil. A study concerning taxonomic richness and composition of the aquatic insect fauna in streams within the same catchment basin along an altitudinal gradient in Southeast Brazil, was conducted to test the hypothesis that there is a faunal discontinuity in the biocenotic composition, related to differences in altitude and latitude. In Southeastern Brazil, around latitude 22°, this faunal transition from rhithron to potamon biocenosis should occur at 500 m above sea level. Eighteen tributaries of the Mambucaba River, at Serra da Bocaina National Park, SP-RJ, Brazil, were studied. The streams were separated into 6 altitudinal zones (zone 1: above... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Altitudinal distribution; Spatial distribution; Taxonomic richness; Benthic macroinvertebrates. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000300012 |
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| Nessimian,Jorge Luiz; Ribeiro,José Ricardo Inácio. |
| A monthly quantitative study on B. platycnemis (Fieber, 1851) was carried out in a sand dune marsh, on the littoral of Rio Janeiro State. The aims of this study were to correlate the life cycle of the species with the seasonal regime of the water body, defining steps of the annual cycle, age strueture, and to indicate oviposition sites and trophic relations. The species shows a marked seasonal tendency. The major steps of the life cycle obtained were an invernal (weak) with a predominance of imagines, followed by another of population expansion, characterized by the absence of adults, massive eclosions and predominance of low instar nymphs. Probably, B. platycnemis has a sensibility to water levei variation and might be intluenced by the concentration of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nepomorpha; Notonectidae; Buenoa platycnemis; Marsh; Restinga. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000100020 |
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| Nessimian,Jorge Luiz; Henriques-de-Oliveira,Ana Lucia. |
| Foram observados os processos de colonização do "litter" de Eleocharis sellowiana (Cyperaceae), macrófita dominante no Brejo-canal de Itaipuaçú, Maricá, RJ, pela fauna de macroinvertebrados aquáticos. Realizou-se um experimento no período de abril a junho de 1996, depositando-se no corpo d'água, 25 amostras de mesmo peso (50 g de peso úmido) de folhas. Foram realizadas 5 retiradas de 5 amostras em um período de 70 dias. Insetos representaram 51% do total de macroinvertebrados colonizadores sendo Chironomidae (Diptera) o principal táxon com 58%, totalizando 2347 indivíduos. Dentre os Chironomidae, Chironomini (Chironominae) constituiu o grupo mais abundante com 63,1%, seguido de Tanypodinae com 34,3%. Tanytarsini (Chironominae) apresentou participação... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chironomidae; Larvas; Colonização; Macrófitas; Brejos. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0328-03812005000200003 |
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| Assis,Juliana C. F. de; Carvalho,Alcimar L.; Nessimian,Jorge Luiz. |
| No período de maio de 1999 a maio de 2000 foram efetuadas coletas de imaturos de Odonata (Insecta), em sete diferentes substratos, ao longo de 50 metros de um trecho do Rio Ubatiba, Maricá, Rio de Janeiro, Brasil. Um total de 1.279 larvas de Odonata foi coligido e identificado em 27 espécies de cinco famílias. Acanthagrion lancea (Selys, 1876), Hetaerina auripennis (Burmeister, 1839), Micrathyria hesperis Ris, 1911 e Telebasis filiola (Perty, 1834) foram as espécies mais numerosas. O substrato com o maior número de indivíduos foi "vegetação em áreas de remanso". Grande parte das espécies estudadas demonstrou preferência por algum dos substratos. Dythemis multipunctata Kirby,1894, Erythrodiplax sp., M. hesperis, T. filiola, A. lancea, Erythemis sp.,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Imaturos; Odonata; Preferência por substrato; Rios de baixada; Sudeste do Brasil. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262004000200017 |
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| Da-Silva,Elidiomar Ribeiro; Nessimian,Jorge Luiz; Coelho,Luci Boa Nova. |
| A família Leptophlebiidae é ainda pobremente conhecida no Estado do Rio de Janeiro, tanto em termos faunísticos quanto taxonômicos e biológicos. No presente trabalho foram reunidos dados biológicos acerca de 14 gêneros (Askola, Farrodes, Hagenulopsis, Hermanella, Hylister, Leentvaaria, Massartella, Miroculis, Needhamella, Perissophlebiodes, Thraulodes, Traverella e Ulmeritoides, além de um gênero ainda não descrito) e em torno de 25 morfoespécies ocorrentes no estado. Em termos ecológicos, a maioria dos gêneros e espécies dessa família está associada a ambientes lóticos ritrais, colonizando áreas de deposição de material orgânico alóctone. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atalophlebiinae; Efemerópteros; Insetos aquáticos; Ecologia; Região Neotropical. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000400012 |
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| Gonçalves,Inês Corrêa; Cid,Bruno; Mortati,Amanda Frederico; Quesado,Letícia Barbosa; Nessimian,Jorge Luiz. |
| Physical environment of streams present many challenging factors to the organisms living under its influence. Water speed, one of the most important factors affecting such environments, has local influence on substrata, temperature, and oxygen levels. It acts determining species distributions and morphological and behavioral adaptations of organisms. The aim of this study was to assess the relative size of gills of Cloeodes jaragua on two mesohabitats: lentic environment (river dam) and lotic environment (fast flowing area of a stream) in Parque Nacional da Serra dos Órgãos (RJ, Brazil). Twenty individuals were collected on each environment and width of the head and gills were taken. Lentic environment showed nymphs with broader and more constant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ephemeroptera; Aquatic insects; Dam; Stream; Gills relative size; Water speed. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032011000200022 |
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| Fernandes,Liliane Henriques; Nessimian,Jorge Luiz; Mendonça,Maria Cleide de. |
| The objectives of this work were to evaluate the richness and diversity of the Poduromorpha fauna in two biotopes in Restinga de Maricá, RJ, Brazil, to identify the characteristic species of each biotope and to determine the relationships between the community structure and the abiotic environmental parameters. Representatives of the Poduromorpha (Collembola) order were studied under an ecological viewpoint in halophyte-psammophyte vegetation and foredune zone in preserved areas of Restinga de Maricá, a sand dune environment in the state of Rio de Janeiro, Brazil. The foredune zone showed the highest diversity, richness and equitability of springtail species. Differences in the fundamental, accessory and accidental species in each environment were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioindicator; Ecology; Littoral; Springtails. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800036 |
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| Registros recuperados: 23 | |
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