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Search Results: 1 - 10 of 12677 matches for " Nunes-Freitas "
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Spatial distribution by Canistropsis microps (E. Morren ex Mez) Leme (Bromeliaceae: Bromelioideae) in the Atlantic rain forest in Ilha Grande, Southeastern Brazil
Nunes-Freitas, AF.;Rocha, CFD.;
Brazilian Journal of Biology , 2007, DOI: 10.1590/S1519-69842007000300011
Abstract: canistropsis microps (bromeliaceae: bromelioideae) is an endemic species of atlantic rain forest areas in rio de janeiro state, which are very abundant in not very disturbed forests in ilha grande, on the southern coast of the state. in this study, we analyzed the vertical and horizontal distribution patterns of the species in an area of rain forest with little evidence of disturbance at vila dois rios, ilha grande, relating the patterns to sunlight in the microhabitat. we also identified the types of substrate used by the species and the rate of asexual reproduction. canistropsis microps had high densities (estimated at 84,425 rosettes/ha), and has an aggregated distribution (id = 2.86). about 80% of the rosettes were generated by clonal growth, whereas less than 20% were produced from seedlings. most of the rosettes were found on straight tree trunks (dbh > 50 cm). there was a significant inverse correlation between the incidence of sunlight in the habitat and the abundance of individuals. rosettes were found up to a maximum height of 9.5 m, but most occured between 1.5 and 5.5 m, where light varied from 25 to 50 μmol.s-1.m-2. we conclude that vertical and horizontal distribution patterns in c. microps may be partially explained by the occurrence of appropriate substrate, an intensity of sunlight favorable to the development of the species and to a high rate of vegetative reproduction.
Estrutura populacional e distribui??o espacial de Miconia prasina D.C. (Melastomataceae) em duas áreas de Floresta Atlantica na Ilha Grande, RJ, Sudeste do Brasil
Antonini, Rafaela Dias;Nunes-Freitas, André Felippe;
Acta Botanica Brasilica , 2004, DOI: 10.1590/S0102-33062004000300024
Abstract: the aim of this study was to identify the spatial distribution pattern and the populational structure of miconia prasina d.c. in two atlantic forest areas at ilha grande, rj. the area i (ai) is a secondary forest near 30 years of regeneration, and area ii (aii) is a primary forest with few evidences of anthropic action. on each area, 40 plots (25m2) were established, where the number of individuals, height and the bhd of each individual were recorded. the pattern of spatial distribution was determined using the morisita's dispersion index (id). possible differences on abundance, bhd and height between the two populations were tested using student's t test. the morisita's index value was 1.91 in ai and 3.32 in aii, indicating a clumped distribution pattern on both areas. there was no significant difference in abundance between populations. bhd and tree height differed significantly between populations, with aii presenting lower mean values than ai. data suggest that the ai population is on a more advanced level of habitat occupation than aii, since it has greater mean values of bhd and height.
Species composition of Bromeliaceae and their distribution at the Massambaba restinga in Arraial do Cabo, Rio de Janeiro, Brazil
Rocha-Pess?a, TC.;Nunes-Freitas, AF.;Cogliatti-Carvalho, L.;Rocha, CFD.;
Brazilian Journal of Biology , 2008, DOI: 10.1590/S1519-69842008000200005
Abstract: we studied some ecological parameters such as richness, abundance, density, biomass and variation in species composition in four vegetation zones and in a zone with anthropic disturbance in the massambaba restinga in arraial do cabo, rio de janeiro state. we sampled 100 plots of 100 m2 (10 x 10 m) recording the bromeliad species and their abundance. we found a total of seven bromeliad species, with vriesea neoglutinosa (5647 ramets) and tillandsia stricta (1277 ramets) being the most abundant. the vegetation zone called clusia shrubs had the highest richness (s = 5) and density (6360 ramets.ha-1) of bromeliads. the differences found in abundance and variation in species composition among vegetation zones seems to be related to the vegetation structure of each zone.
First record of Philornis glaucinis Dodge & Aitken, 1968 (Diptera: Muscidae) in Thalurania glaucopis Gmelin, 1788 (Aves: Trochilidae)
Hermes Ribeiro Luz,Rafaela Dias Antonini,Michele Silva Rodrigues,André Felippe Nunes-Freitas
Biotemas , 2010,
Abstract: From the groups causing myiasis, the genus Philornis Meinert, 1890 appears as the only representative of the family Muscidae, obligatorily associated with birds. Thus, the aim of this work was to report the occurrence of Philornis in Thalurania glaucopis (Trochilidae). Two parasitized nestlings of T. glaucopis were encountered in May of 2008, in an area with a high degree of degradation in the municipal district of Petrópolis, Rio de Janeiro. A total of 11 larvae were located intradermically in the regions of the head and neck. The larvae were removed using tweezers and placed in a plastic container with sawdust, in order to await the emergence of the adult. Only seven larvae completed metamorphosis and reached the adult stage, being identified as Philornis glaucinis. This study presented the first record of P. glaucinis in the state of Rio de Janeiro and also the first occurrence of this parasite in nestlings of T. glaucopis.
Volume de água armazenado no tanque de bromélias, em restingas da costa brasileira
Cogliatti-Carvalho, Luciana;Rocha-Pess?a, Thereza Christina;Nunes-Freitas, André Felippe;Rocha, Carlos Frederico Duarte;
Acta Botanica Brasilica , 2010, DOI: 10.1590/S0102-33062010000100009
Abstract: many bromeliad species store rain water in tanks, as a result of the spiraled distribution of their leaves. the aim of this study was to evaluate how much water is stored and what is the maximum volume of water possible to be stored in different tank-bromeliad species in 13 different brazilian restingas. the species were recorded in 100 plots of 100 m2, in each restinga habitat. for each bromeliad species, the effective and the maximum water stored in the tanks were measured. we found 32 tank-bromeliad species and 59,007 bromeliad rosettes, with a maximum volume estimated in 44,388 liters, and approximately 17,000 liters of effective water stored. we found interspecific difference in effective and maximum volume of water stored. aechmea aquilega, a. blanchetiana and hohenbergia castelanosii had the highest effective water volume stored in their tanks. only a. nudicaulis and billbergia amoena showed differences among their populations in all analyzed parameters. the restingas of maricá, prado, trancoso and jurubatiba had the highest volumes.ha-1 of water stored inside bromeliad tanks. the maximum water volume stored in the bromeliad tanks varied among species due to morphological differences in shape and size parameters.
Bromeliaceae da restinga da Reserva Biológica Estadual da Praia do Sul: composi??o, abundancia e similaridade da comunidade
Nunes-Freitas, André Felippe;Rocha-Pess?a, Thereza Christina;Cogliatti-Carvalho, Luciana;Rocha, Carlos Frederico Duarte;
Acta Botanica Brasilica , 2006, DOI: 10.1590/S0102-33062006000300020
Abstract: the praia do sul state biological reserve (ilha grande, rj) is an important remnant of restinga habitat in rio de janeiro state. restinga vegetation is not homogeneous and it is distributed in different vegetation zones, each zone having different topography, physiognomy and flora. we analyzed ecological parameters of the bromeliad community such as richness, abundance, density, biomass and variation in species composition in four vegetation zones. we sampled 150 plots of 100 m2 (10×10 m), distributed in the four vegetation zones, recording the bromeliad species and their abundance, and measuring the height, dbh, and density of the trees. we tested differences in ramet abundance and vegetation complexity between the four vegetation zones with anova followed by tukey's test. we found a total of 16 bromeliad species, with different abundances and distribution patterns between the four vegetation zones, and with significant differences in abundance between species. the data indicate that the high species richness found in the biological reserve is related to local heterogeneity and complexity. the differences found between vegetation zones seem to be related to the vegetation structure of each zone.
Calliphorid fly (Diptera, Calliphoridae) attraction to different colored traps in the Tingua Biological Reserve, Rio de Janeiro, Brazil
Mello, Renata S;Queiroz, Margareth M. C;Nunes-Freitas, André F;Aguiar-Coelho, Valéria M;
Iheringia. Série Zoologia , 2009, DOI: 10.1590/S0073-47212009000400013
Abstract: the present study intended to analyze calliphorid attraction to traps painted in a variety of colors and the calliphorid constancy index in the tingua biological reserve, rio de janeiro state, brazil. the diptera were collected monthly in the reserve, between 2002 and 2005, totaling 24 samplings. four traps containing sardines as bait were painted olive green, blood red, black, or white and exposed for 48 h at four equidistant points, 50 m from each other. to determine the calliphorid species constancy, the bodenheirmer constancy index was used throughout the study. to analyze differences in the total abundance between species and in their color selection, an ancova test with a significance level of 5 % and a tukey post-test were used, considering the categories species and color as cofactors and climatic variables as co-variables (temperature, relative humidity and precipitation), since the samples were collected over two years. 10,444 insects were captured. of these, 56 % belonged to the calliphoridae family, totaling 13 species, with the most frequent species being laneela nigripes (28.5 %), hemilucilia semidiaphana (17 %), and mesembrinella sp. (16.4 %). the other species had frequencies lower than 12 %. nine species were considered constant, two accessories, and two accidental. the data indicated that the most frequent species presented significant differences between themselves concerning abundance over the captured months, however, the tukey post-test indicated differences only between a few of them. the black trap presented the higher relative calliphorid frequency (27.34 %), followed by green (25 %), red (24.0 %), and white (23.7 %), although the species abundance in the different colored traps did not differ significantly among themselves. therefore, there was no calliphorid flies preference for any of the tested colors.
Bromeliaceae species from coastal restinga habitats, Brazilian states of Rio de Janeiro, Espírito Santo, and Bahia.
Cogliatti-Carvalho, L.,Rocha-Pess?a, T. C.,Nunes-Freitas, A. F.,Rocha, C. F. D.
Check List , 2008,
Abstract: Bromeliaceae is one of the most representative plant families in restinga habitats. We analyzed the speciesrichness and composition of Bromeliaceae in 13 restinga habitats along the Brazilian coast. We found a total of 41species distributed along the restinga habitats studied. The restinga of Praia do Sul, in the state of Rio de Janeiro, hadthe highest number of species (15), whereas the restinga of Abaeté, in the state of Bahia, had the lowest (4). Our dataare suggestive that the Doce River may represent the limit of distribution for some bromeliad species, with some speciesoccurring only south of that river and others occurring only to the north of it. The differences in Bromeliaceae speciescomposition among restinga habitats probably are not only due to differences in local environmental conditions, butalso due to the geographic distribution pattern of each species and to the present degree of disturbance at each restinga.
Bromeliaceae da Ilha Grande, RJ: revis?o da lista de espécies
Nunes-Freitas, André Felippe;Rocha-Pess?a, Thereza Christina da;Dias, Aline dos Santos;Ariani, Cristina Valente;Rocha, Carlos Frederico Duarte da;
Biota Neotropica , 2009, DOI: 10.1590/S1676-06032009000200020
Abstract: ilha grande, located at the southern coast of rio de janeiro state, is constantly punctuated as an important area for conservational purposes, specially because it is a representative fragment of atlantic forest and presents a high number of studies about the local fauna and flora. the aim of this study is to analyze the current knowledge of bromeliaceae family at this island, and understand how the increase of the family's species list occurred through out the amount of time and sampling effort of this study. a total of 58 species of bromeliaceae were listed for ilha grande, and 47 of them were sampled using only the methodology adopted at this study and, therefore, constitute new records for ilha grande.
Narciso e seu reino de sombra em Cantares, de Hilda Hilst
Souza, Enivalda Nunes Freitas e
Letras de Hoje , 2009,
Abstract: Os poemas de Cantares, de Hilda Hilst, convidam ao desvelamento do mito do amor, empreitada que procuro enriquecer, neste artigo, recorrendo à matriz ovidiana do mito de Narciso e seus tantos mitemas, como a busca do conhecimento, a quest o da sombra e do duplo e a intrigante rela o entre amor e ódio, amor e morte. Como afirma Durand, os mitos s o varia es de arquétipos, o que provoca a aproxima o e o entrela amento dos conteúdos míticos. De todos os mitos sobre os desencontros amorosos e a consequente solid o humana, poucos têm a beleza e a for a psíquica desencadeada pelo mito de Narciso elaborado por Ovídio. Além do mito de Narciso, este artigo resgata a genealogia de Eros e os andróginos desafortunados, relatados por Plat o, e a história de Salom o e Sulamita elaborada nos Canticos bíblicos. O aporte teórico envolve Gilbert Durand, Jung, Freud e Kristeva.
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