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| Registros recuperados: 76 | |
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| Batista,João A. N.; Bianchetti,Luciano B.. |
| kleinii is similar to a group of terrestrial species characterized by their small pseudobulbs, buried underground, and small flowers, but it can be distinguished by the color of its flowers, lip lateral lobes slightly or not falcate and subequal in length and width, lip midlobe base with little or no constriction, and geographical distribution. Cyrtopodium brandonianum subsp. lageanum is similar in general flower color to typical C. brandonianum, but it can be distinguished by its earlier flowering, leaves poorly developed at anthesis and different shape and colour of the lip. Both taxa are rare and only known from southern Brazil. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cyrtopodium; Orchidaceae; Southern Brazil; Taxonomy. |
| Ano: 2005 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932005000100009 |
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| Cassel,Ana Paula Rebelo; Barcellos,Regina Bones; Silva,Cláudia Maria Dornelles da; Almeida,Sabrina Esteves de Matos; Rossetti,Maria Lucia Rosa. |
| The aim of the present study was to investigate the association between HPV-DNA and micronucleus (MN) frequency in women with normal cervical cytology. A total of 158 normal cervical smears were analyzed cytologically. The HPV genome was amplified using the GP5+/bioGP6+ consensus primers. HPV-DNA of high-risk types 16, 18, 31, 33, 39, 45 and 59 were also investigated. Of the 158 samples, 20 (12.7%) and 47 (29.7%) were positive for HPV-DNA and MN, respectively. Evidence for MN was found in 11 out of 20 (55%) HPV-DNA positive samples and in 36 out of 138 (26.1%) HPV-DNA negative ones. MN presence was significantly higher in HPV-DNA positive samples (p = 0.016). On the other hand, the absence of MN observed in a considerable number of HPV-DNA negative samples... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Human papillomavirus; Micronucleus; Cytology; High-risk HPV; Southern Brazil. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000300007 |
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| Bonaldo,Alexandre B.; Marques,Maria Aparecida L.; Pinto-da-Rocha,Ricardo; Gardner,Toby. |
| The taxonomic composition, observed and estimated species richness, and patterns of community structure of arboreal spider assemblages in eleven sites surrounding the "Banhado Grande" wet plain in the state of Rio Grande do Sul, Brazil, are presented. These sites represent three different vegetational types: hillside (four sites), riparian (five sites) and flooded forests (two sites). The spiders were captured by beating on foliage and "aerial litter". A sample was defined as the result of beating on twenty bushes, tree branches or "aerial litter" clusters, which roughly corresponds to one-hour search effort per sample. Fifty five samples (five per site) were obtained, resulting in an observed richness of 212 species present as adult or identifiable... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arboreal spiders; Taxonomic composition; Species richness; Wet plain; Southern Brazil. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212007000200003 |
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| Bernardo-Silva,Jorge S.; Von-Mühlen,Eduardo M.; Di-Bernardo,Marcos; Ketterl,Jochen. |
| We analyzed the alimentary tract of 66 specimens of Amphisbaena munoai Klappenbach, 1969 from the Serra do Sudeste, state of Rio Grande do Sul, southern Brazil. Forty specimens (60.6%) had prey items in their gut. The diet consisted mainly of small invertebrate prey, such as termites, insect larvae and ants. The most abundant prey item was termites, found in 62.5% of the non empty stomachs. The high number of individual prey items in the majority of stomachs, the small size of the regular prey items, and the absence of gut content in specimens of A. munoai kept alive for about two days, indicate that this species forages very frequently. The predominance of fossorial prey items and the occasional records of nomadic ants lead us to suggest that A. munoai... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphisbaena munoai; Diet; Feeding behavior; Natural history; Southern Brazil. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212006000400014 |
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| Döge,Jonas S.; Gottschalk,Marco S.; Valente,Vera Lúcia S.. |
| The Drosophila peruensis species group was recently proposed and includes four taxa: D. atalaia Vilela & Sene, 1982, D. boraceia Vilela & Val, 2004, D. pauliceia Ratcov & Vilela, 2007, and D. peruensis Wheeler, 1959. All these species have most of setae or setulae of mesonotum arinsing from dark spots, wings with crossveins darker (except in D. atalaia) and hypandrium squared-shaped mostly fused to gonopods. Here, we describe two new species, Drosophila itacorubi sp. nov. and Drosophila paraitacorubi sp. nov., belonging to this species group. The male genitalia of these species are figured. An identification key to the D. peruensis species group is provided. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic Rainforest; Male genitalia; Mangrove; Southern Brazil; Spotted thorax. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212011000300005 |
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| Siegloch,Ana Emilia; Froehlich,Claudio Gilberto; Kotzian,Carla B.. |
| The taxonomic composition and diversity of assemblages of Ephemeroptera nymphs of four lotic environments in the central region of State of Rio Grande do Sul, a subtropical area in southern Brazil, were evaluated. Samplings were done monthly, with a Surber sampler, from June 2001 to May 2002, in the Jacuí River and three of its tributaries. The total number of nymphs collected in the four sampling sites was 11,007 in five families and 19 genera, of these, 11 are new records for the State. The highest diversity occurred in Point 4 (H'=2.41) and the lowest in Point 2 (H'=1.69). Point 4 had the highest environmental stability, conservation of the riparian vegetation and the lowest anthropic impact, while Point 2 presented a large environmental simplification... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ephemeroptera; Nymphs; Taxonomic composition; Diversity; Southern Brazil. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000400002 |
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| Amato,J. F. R.. |
| A new species of polychaete, Stratiodrilus vilae, epizoic on Parastacus brasiliensis (von Martens, 1869) and P. defossus Faxon, 1898, is described from the State of Rio Grande do Sul, southern Brazil. The new species has one pair of long, anal, conical ventral lobes, one on each side of the anus, claspers in the males, and one pair of tubercles in each of the posterior locomotor appendages; and the jaw apparatus not reaching the limit between the head and the first segment. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Histriobdellidae; Stratiodrilus; Parastacidae; Parastacus; Southern Brazil. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212001000100004 |
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| Nunes,Daniela M.; Pellanda,Mateus; Hartz,Sandra Maria. |
| Oligosarcus jenynsii (Günther, 1864) and O. robustus Menezes, 1969 are fish species distributed in Rio Grande do Sul, Brazil, Uruguay, and northern Argentina. The reproductive period and recruitment, sex ratio, absolute and relative fecundity, and body length at first gonadal maturation of the two carnivorous species from Fortaleza Lagoon were analized. The specimens were sampled monthly, from May 2000 to April 2001, with fishing effort of 24 hours/month, using stationary gillnets of different mesh sizes and seine net (three samples per edge). The records of each individual included total length, total weight, gonad weight, sex and gonadal maturity stage. The reproductive period of both O. jenynsii and O. robustus ranges from May/June to November/December,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oligosarcus; Reproduction; Characidae; Southern Brazil. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212004000100001 |
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| Santos,Lucyane Moreira dos; Azevedo,Celso Oliveira. |
| Epyris rotundus sp. nov. and Epyris cochlear sp. nov., from southern Brazil, are described and illustrated. Epyris longus Corrêa & Azevedo, 2002, E. argentinicus Evans, 1969, E. angustatus Evans, 1969, E. perpolitus Evans, 1969, E. parallelus Evans, 1969, E. distinctus Corrêa & Azevedo, 2002, E. variatus Corrêa & Azevedo, 2002, E. jugatus Evans, 1969, E. intermedius Evans, 1969 and E. depressigaster Evans, 1966 are recorded for the first time to Paraná, Brazil. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Epyrinae; Epyris; Hymenoptera; Southern Brazil; Taxonomy. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212003000200010 |
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| VARELLA, A. C.; BARRO, R. S.; SILVA, J. L. S. da; PORFIRIO-DA-SILVA, V.; SAIBRO, J. C. de. |
| The cold zone of Brazil occupies approximately 6 % of the national territory and is located between latitudes 24° S and 33° S. In this area, extensive cattle and sheep farming systems and conventional cropping and forestry are predominant. With the end of government subsidies by the decade of 1980s, an increase in farming production costs, a decrease of native forest covering, an increase of degraded areas in agriculture and livestock farming systems and a mismatch between timber national supply and demand after 1990s, an opportunity arises for integrate forestry with livestock and agriculture activities in Brazil, particularly in the southern. This chapter initially reports key events over the last three decades that have supported the increasing interest... |
| Tipo: Capítulo em livro técnico (INFOTECA-E) |
Palavras-chave: Sistema silvipastoril; Sistema agroflorestal; Região Sul; Brasil; Tree; Southern Brazil; Planta Forrageira; Sombreamento; Agroforestry; Cattle; Sheep. |
| Ano: 2016 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1090865 |
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| Bertaco,Vinicius A.; Cardoso,Alexandre R.. |
| A new pseudopimelodid catfish, Microglanis malabarbai, is described from the rio Ijuí drainage, tributary of the middle rio Uruguay, Rio Grande do Sul, Brazil. The new species is distinguished from all other Microglanis species by the caudal fin color pattern, almost completely black, with a narrow vertical white band across central portions of the caudal-fin rays. Furthermore, it is distinguished from M. cottoides and M. eurystoma, both from rio Uruguay drainage, by head length, maxillary barbel length, internareal distance, and number of lateral-line pores, and from M. cibelae from the coastal drainages of northern Rio Grande do Sul and southern Santa Catarina states, by head length, maxillary barbel length, and body width. A key is presented for the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Neotropical; Taxonomy; M. eurystoma; M. cibelae; M. cottoides; Rio Ijuí; Southern Brazil. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000100002 |
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| Giora,Júlia; Fialho,Clarice B.; Dufech,Ana Paula S.. |
| This study aims to describe the feeding habits of a population of the weakly electric fish Eigenmannia trilineata from Southern Brazil through the monthly frequency variation of replection (RI) and hepatosomatic (HSI) indexes, condition factor (CF) and dietary analysis of the species, besides the comparison of the results with abiotic factors. We collected 428 specimens from June/2002 to May/2003 with a dip net and electric fish detector. Stomach contents were analyzed using three measurements: frequency of occurrence of food items, percentage composition per prey type and feeding importance index. Microcrustacea and autochthonous insects were the dominant food items in the stomachs of E. trilineata. The adults (males larger than 63.5 mm and females larger... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gymnotiformes; Electric-fish; Diet; Southern Brazil. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000200007 |
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| Nascimento,Francisco Eriberto de Lima; Santos-Silva,Antonio. |
| Abstract Glyptoscapus letiziae, a new species of Hexoplonini Martins, 2006, is described from Brazil (Minas Gerais). Glyptoscapus cicatricosus Aurivillius, 1899 and G. vanettii Martins, 1959 are synonymized with G. pallidulus (White, 1855). A key to species of Glyptoscapus is provided. New state records are presented for Thoracibidion io (Thomson, 1867) (Neoibidionini), Coleoxestia rafaeli Santos-Silva & Wappes, 2017 and C. denticornis (Gahan, 1892) (Cerambycini). The female of C. rafaeli is described for the first time. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Key; Southern Brazil; South America; Taxonomy. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492018000100234 |
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| CONCENÇO,G.; ANDRES,A.; SCHREIBER,F.; SILVA,A.F.; MOISINHO,I.S.; CORADINI,M.C.. |
| ABSTRACT: The aim of this study was to evaluate the occurrence of weeds in flooded rice areas, as a function of planting system and herbicide programmes in the previous cropping year. The experiment was installed in field conditions, in randomized complete blocks design, arranged in factorial scheme 3 x 2, with eight replications. In factor A, treatments consisted on conventional tillage, minimum tillage and no till cropping systems, coupled to the application (traditional control) or not (semi-ecological system) of herbicides (Factor B). One year after rice cultivation, preceding the planting of the next cropping season, phytosociological evaluations of the weed communities present in the treatments were carried out. We assessed the overall infestation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemical control; Semi-ecological rice; Phytosociology; Southern Brazil. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100286 |
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| Werner,Vera Regina; Sant'anna,Célia Leite; Azevedo,Maria Teresa de Paiva. |
| The paper proposed Cyanoaggregatum brasiliense, a new genus and species from the plankton of a subtropical brackish coastal lagoon from Rio Grande do Sul State, South Brazil. It differs from all other members of Chroococcales by its characteristic arrangement of cells in irregular groups distributed in a single, flat or slightly curved layer, on irregular rows, slightly distant from each other, forming a mosaic-like pattern slightly below the surface of the mucilaginous colonial envelope. The cell division in one plane perpendicular to the long axis and the lack of pseudo-filaments indicate its classification in the family Synechococcaceae, sub-family Aphanothecoideae. The general characteristics, the diagnostic criteria and the taxonomic position are... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coastal lagoon; Cyanoaggregatum brasiliense; Cyanobacteria; New genus and species; Southern Brazil. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000300012 |
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| Registros recuperados: 76 | |
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