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| Registros recuperados: 2,277 | |
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| Barreto,Aline do V.; Katsuragawa,Mario. |
| Esta pesquisa caracteriza os estádios de desenvolvimento dos testículos e canais deferentes da lagosta Panulirus echinatus Smith, 1869 a partir da relação entre seus aspectos macroscópicos, microscópicos e a relação gonadossomática (RGS). Através de amostragem mensal (novembro de 1999 a outubro de 2000) foram capturados 1716 machos, empregando-se redes de espera de fundo. Retirou-se a região dorsal da carapaça para avaliação dos órgãos reprodutivos. Os testículos e canais deferentes foram dissecados, pesados, fixados em solução de Bouin e submetidos aos procedimentos histológicos. A análise microscópica dos órgãos reprodutivos foi avaliada pela presença ou ausência de espermatozóides nos testículos e canais deferentes. Esta, quando associada a macroscopia... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Histologia; Relação gonadossomática; Reprodução. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000100011 |
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| Fernandes,Geraldo Wilson Afonso; Tameirão Neto,Eugênio; Martins,Rogério Parentoni. |
| Obteve-se 37 tipos de galhas entomógenas, morfologicamente distintas, em 22 espécies de plantas arbustivas e arbóreas do Campus-Pampulha da U.F.M.G., Belo Horizonte - Minas Gerais. A maior parte delas são dipterocecídias causadas por cecidomiídeos, principalmente em folhas. A morfologia externa das galhas é extremamente variável, embora internamente seja mais uniforme. O número de galhas por órgão varia enormemente entre plantas, embora o número de lojas e larvas por lojas seja mais freqüentemente igual a 1. Várias famílias de parasitóides, principalmente das dipterocecídias, foram também obtidas. |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1988 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751988000100002 |
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| Simone,Luiz Ricardo L.. |
| A detailed morphological study of the littorinid Littorina flava (King & Broderip), from Venezuelan and Brazilian coasts, is given and commented. a considerable degree of shell characters variation was found, mainly in color and sculpture. The pallial cavity presents normal fashion of mesogastropods, without any detectable morphological modification for the long air-exposure. The digestive system present odontophore muscles very similar to those of the cerithioideans and hydrobioideans; the radula, however, is enormously long; the stomach lacks differentiate style sac. The penis is characteristic in lacking annex glands. The pallial oviduct has no jelly gland, and has a well developed bursa copulatrix and vaginal tube. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mollusca; Littorina flava; Morphology; Systematics; Brazil. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000400005 |
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| Alho,Cleber J.R.; Rondon,Nelson L.. |
| (1) The Pantanal is the central portion of a sunken flat plain bordering the upper Paraguay river, with an area of 140,000 km². Seasonal floods begin in January and end in April. From May to October the land dries out and campos (grassland formations) and scattered pools appear. (2) Typical capybara habitat in the Pantanal is composed of three components: the water, a patch of forest, and a grass field for foraging. Highest densities of capybaras (14 individuals/km²) were found during the rainy season when the available space for capybaras was reduced due to the flooding. Areas without ponds or creeks presented low densities (from 0.38 to 0.84 capybaras/km²). Group sizes ranged from 2 to 49 individuals (x = 9.48). (3) Reproduction occurred year-round and... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1987 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751987000200006 |
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| Mielke,Carlos G.C. |
| A list of butterflies from Curitiba and vicinity, Paraná, Brazil is given, 486 species are listed. The following are syn.n.: Phanes hoffmani Bell, 1940 of Phanis tavola Schaus, 1902; Parphorus nemorus Bell, 1941 and Tigasis altona Evans. 1955 of Phlebodes fartuga Schaus, 1902; Megistias gisparoides Hayward, 1934 of Megistias sancoya Schaus, 1902; Hesperia curassavica Snellen, 1887 of Hesperia clavus Erickson, 1848. The following is a stat.n.: Vehilius almoneus vetus Mielke, 1969. The following are comb.n.: Phanes tavola (Schaus, 1902); Parphorus fartuga (Schaus, 1902); Cobalopsis sancoya (Schaus, 1902); Arita polistion (Schaus, 1902). The following is sp.rev.: Arita polistion (Schaus, 1902). |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Butterflies; Curitiba; Paraná; Brazil. |
| Ano: 1994 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751994000400018 |
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| Young,Paulo S.. |
| Basead on extensive collections of cnidarians from Brazilian shallow-water marine environments, new occurrences of four species of associated barnacles are cited, the first three being redescribed; Tne archaeobalanid Conopea galeata, asssociated with the gorgonians Muriceopsis sulphurea, Lophogorgia punicea and Heterogorgia sp from the States of Paraíba, Bahia, Rio de Janeiro and São Paulo; the balanid Megabalanus stultus, associated with the hydrozoans Millepora spp from Paraíba to Alagoas and from the south of Bahia to Rio de Janeiro; the pyrgomatids Megatrema madreporarum, associated with the scleractinian corals Agaricia spp from Paraíba to Alagoas and the south of Bahia, and Ceratoconcha floridanum, associated with the seleractinian coral Mussismilia... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1988 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751988000300001 |
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| Bialetzki,Andréa; Sanches,Paulo Vanderlei; Baumgartner,Gilmar; Nakatani,Keshiyu. |
| With the purpose of characterizing morphologicaly the larvae and juveniles of Apareiodon affinis (Steindachner, 1879) and to verify their temporal distribution monthly samples were taken at Leopoldo's Inlet, upper Paraná River. The specimens were captured with a conic-cylindrical plankton net of mesh size 0,5mm from March 1991 to February 1992. Soon after identification, the specimens were separeted according to their development (prefle-xion, flexion, posflexion and juvenile) and then the moiphometric analyses were performed. The results showed that the larvae were captured from August 1991 to February 1992, with greatest densities in November 1991. The specimens occured in every timetable, however, larvae in pretlexion and flexion were captured during... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apareiodon affinis; Morphological development; Temporal distribution; Upper Paraná River. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000400021 |
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| Chaves,Paulo de Tarso C; Vendel,Ana Lúcia. |
| The species of Citharichthys Bleeker, 1862, C. arenaceus Evermann & Marsh, 1900 and C. spilopterus Günther, 1862, are the most common flatfishes found in Guaratuba Bay, south Brazil. Different size categories of these flatfish occur in the mangrove area throughout the year. The Gonadosomatic Index, the Condition Factor, and the morphological analyses of the gonads from samples obtained between 1994 and 1996 reveals a spawning activity during late Spring and early Summer. This period coincides with the increase in temperature and decrease in salinity. Spawning evidence and the presence of ali size categories throughout the year indicate that Citharichthys spp. are permanent inhabitants of the mangrove in Guaratuba Bay, where they complete their life... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Teleostei; Pleuronectiformes; Fish reproduction; Guaratuba Bay; Brazil. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000100007 |
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| Alvarenga,Moacyr. |
| The present catalog is an inventory of names proposed in Erotylidae (from family through subspecies) ocurring in the Neotropical Region, up to the present date (1988). It updates the nomenclature of included taxa, adds taxonomic units proposed after the Kuhnt's Genera Insectorum (Kuhnt, 1909) and includes abbreviated references to the literature, which are fully cited at the end of this catalogue. The systematic order follows Kuhnt, 1909, and afterwards, the position given to each taxa by the original author. |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1994 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751994000100001 |
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| Aranha,José Marcelo R.; Caramaschi,Érica P.; Caramaschi,Ulisses. |
| Patterns of spatial occupation, feeding, and reproductive period of two species, Corydoras aeneus and Corydoras gr. carlae (Siluroidei, Callichthyidae), coexistents in the Alambari River (Botucatu, São Paulo), were studied. High diet overlap, partial spatial segregation, and well differentiated reproductive strategies were verified. These findings do not permit to evidence the occurrence of competitive interactions between the analysed species. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Siluroidei; Callichthyidae; Spatial occupation; Feeding; Reproductive period. |
| Ano: 1993 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751993000300013 |
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| Oliveira,Marcio L.; Morato,Elder F.; Garcia,Marcos V.B.. |
| Stingless bees were collected between 1984 and 1990 in continuous forest, forest fragments and cleared areas 90 Km north of Manaus, Amazonas, Brazil. Several methods were employed. a total of 54 species of 21 genera were collected including two undescribed species of Plebeia Schwarz, 1938. The most abundant genera were Trigona Jurine, 1807; Melipona Illiger, 1806; Partamona Schwarz, 1939 and Tetragona Lepeletier, 1825. The most abundant species were Trigona crassipes (Fabricius, 1793) and T. fulviventris Guérin, 1835. Fruit fly traps baited with fragrances for euglossine bees showed to be an useful method for stingless bee collection too. The study area showed a great richness in relation to other regions of the world. However the density of nests found... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diversity; Nest density; Conservation; Amazônia; Stingless bees. |
| Ano: 1995 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000100004 |
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| Cunico,Almir M.; Agostinho,Angelo A.; Latini,João D.. |
| O objetivo do presente estudo foi avaliar padrões espaciais na composição, estrutura e distribuição das assembléias de peixes e suas relações com características abióticas em três córregos urbanos da cidade de Maringá, Paraná, Brasil. Peixes foram coletados ao longo de um gradiente longitudinal utilizando pesca elétrica nos meses de maio e novembro de 2004. Temperatura, nitrogênio, pH, oxigênio e fósforo foram as variáveis que mais influenciaram a análise de componentes principais (CPA). Riqueza, eqüitabilidade, índice de diversidade de Shannon-Wiener e o primeiro eixo da análise de correspondência com remoção do efeito do arco (DCA) foram diretamente correlacionados com características ligadas ao impacto químico urbano. Adição de espécies prevaleceu nas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Impacto químico; Poecilia reticulata. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000400018 |
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| Reinert,Bianca L; Pinto,Júlio C; Bornschein,Marcos R; Pichorim,Mauro; Marini,Miguel Â. |
| Five hundred and eigh body masses of 74 forest birds, and measurements of wing, tail, tarsus and beak of 14 poorly known species mist-netted at two sites in the Atlantic Forest of eastern Paraná State, southern Brazil, are presented. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Birds; Body masses; Measurements; Atlantic Forest. |
| Ano: 1996 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400001 |
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| Lamas,Carlos José Einicker; Couri,Márcia Souto. |
| Euprepina Hull, 1971 (Diptera, Bombyliidae, Bombyliinae) a neotropical genus with ten species is revised. Redescriptions of eight species were made: E. nuda Hull, 1971, E. amabilis (Wulp, 1881), E. beckeri Lamas & Couri, 1998, E. bicincta (Wiedemann, 1830), E. caminaria (Wiedemann, 1830), E. knutsoni Hull, 1971, E. maracajula Hull, 1971 and E. truxalia Hull, 1971, with illustrations of the types, male terminalia and spermathecae. Two synonymies - E. bicincta (Wiedemann, 1830), syn.: E. bicincta Hull, 1971; and E. nuda Hull, 1971, syn.: E. shannoni Hull, 1971 - are proposed. A key to species are presented except to E. goyaz (Macquart, 1840) and E. aperta (Macquart, 1847), which were not included in this study, as no material was examined. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bombyliidae; Bombyliinae; Diptera; Euprepina; Taxonomy. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000200012 |
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| Registros recuperados: 2,277 | |
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