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Registros recuperados: 274
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A contribution to the phytogeography of Brazilian campos: an analysis based on Poaceae Rev. Bras. Bot.
Garcia,Ricardo José Francischetti; Longhi-Wagner,Hilda Maria; Pirani,José Rubens; Meirelles,Sérgio Tadeu.
Twenty areas from eight Brazilian states were compared according to a list of 224 species of Poaceae. In order to determinate affinity patterns between the areas, a binary matrix was submitted to cluster and ordination analysis. The patterns found were then faced to climate and geographic position. The scores corresponding to the areas obtained from the cluster analysis showed a strong correlation to temperature. The scores corresponding to the species suggest a gradient that associates distribution patterns to the photosynthetic pathway (C3 or C4). The current results suggest that the traditional classification of the Southern American grasslands might require some modification in order to be broadly applicable in the Brazilian context.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilian grasslands; Gramineae; Multivariate analysis; South America.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042009000400009
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A dorsal fold in Gymnura micrura (Bloch and Scheneider, 1801) (Chondrichthyes: Gymnuridae) BABT
Nunes,Jorge Luiz Silva; Piorski,Nivaldo Magalhães.
This paper reports a dorsal fold which is a membranous structure located on the tail of two juvenile butterfly rays, Gymnura micrura (Bloch & Scheneider, 1801), caught through artisanal fishery in the shallow waters of Maranhão State (Brazil).
Tipo: Info:eu-repo/semantics/article Palavras-chave: Elasmobranchii; Rays; Teratogeny; South America; Brazil.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000200027
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A history of the biogeography of Amazonian fishes Neotropical Ichthyology
Dagosta,Fernando C. P.; Pinna,Mário C. C. de.
ABSTRACT The history of knowledge about Amazonian biogeography is as rich as its fish community, and a fascinating theme of study in itself. Several current paradigms and controversies about Amazonian fish biogeography are rooted in principles dating from the second half of the 18th to the first half of the 19th centuries. The present work establishes a relationship between current biogeographical ideas and their old predecessors, on the basis of a chronologically-oriented historical continuity analysis. The advent of evolutionary theory has not contributed significantly to a transformation of the knowledge on the biogeography of Amazonian fishes. On the other hand, the two main schools of biogeographical thought (dispersalist and vicariant) had major...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Biodiversity; Ichthyology; Neotropical; South America.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000300303
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A land cover map of South America. Repositório Alice
EVA, H. D.; BELWARD, A. D.; MIRANDA, E. E. de; DI BELLA, C. M.; GONDS, V.; HUBER, O.; JONES, S.; SGRENZAROLI, M.; FRITZ, S..
A digital land cover map of South America has been produced using remotely sensed satellite data acquired between 1995 and the year 2000. The mapping scale is defined by the 1 km spatial resolution of the map grid-cell. In order to realize the product, different sources of satellite data were used, each source providing either a particular parameter of land cover characteristic required by the legend, or mapping a particular land cover class. The map legend is designed both to fit requirements for regional climate modelling and for studies on land cover change. The legend is also compatible with a wider, global, land cover mapping exercise, which seeks to characterize the world?s land surface for the year 2000. As a first step, the humid forest domain has...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Amazonia; Ecosystems; Land cover; Mapping; South America; Vegetation classes.
Ano: 2004 URL: http://www.alice.cnptia.embrapa.br/handle/doc/17218
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A molecular contribution to the controversial taxonomical status of some freshwater snails (Caenogastropoda: Rissooidea, Cochliopidae) from the Central Andes desert to Patagonia Iheringia, Sér. Zool.
Koch,Eduardo; Martin,Stella M.; Ciocco,Nestor F..
For over 40 years malacologists have been discussing the taxonomical status of Heleobia species, an enigmatic genus from Cochliopidae family (Caenogastropoda: Rissooidea). As with other rissooidean families, the considerable character convergence and the paucity of anatomical synapomorphies has proved to be a problem in resolving cochliopid phylogenetic relations and establishing the validity of several nominal cochliopid species. Here we present a molecular contribution to solve the taxonomical status of one of the most abundant Southern South America cochliopid genera which has many endemic species. We report molecular evidence that supports three of the four Heleobia groups described for this region, the "australis", "parchappii" and "piscium" groups....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cochliopidae; Heleobia; Taxonomical status; Arid diagonal; South America.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212015000100069
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A new Centromochlus Kner, 1858 (Siluriformes: Auchenipteridae: Centromochlinae) from the transition between Amazon floodplain and Guiana shield, Brazil Neotropical Ichthyology
Sarmento-Soares,Luisa Maria; Lazzarotto,Henrique; Py-Daniel,Lucia Rapp; Leitão,Rafael Pereira.
ABSTRACT Species of Centromochlus are widely distributed in South America, with records for major basins such as the Amazon and Orinoco, rivers draining the Guiana Shield such as the Essequibo, Courantyne (Corantijn), Coppename, Maroni, and Oyapock, and Brazilian Shield drainages as upper Paraná and São Francisco. In the last four years, three species of Centromochlus have been described, raising the total number of valid species to sixteen. The new species of Centromochlus described herein is diagnosed by having black ground color sharply delimited from a white underside by conspicuous wavy border. The new species is recorded from the Nhamundá, left bank tributary to the lower Amazon that drain from the Brazilian portion of the Guiana Shield. Although...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Doradoidea; Ostariophysi; South America; Systematics; Tatia ..
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000400210
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A new Ectaga Walsingham (Lepidoptera, Oecophoridae) from southern South America Zoologia
Becker,Vitor O..
Ectaga garcia, sp.n., related to E. promeces Walsingham, 1912 is described. Larvae were reared on Lantana camara, L. griesebachiana and L. montevidensis (Verbenaceae) in Argentina and Brazil.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lepidoptera; Oecophoridae; Ectaga; Lantana; Verbenaceae; South America.
Ano: 1994 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751994000200023
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A new genus and species of Cicadellini (Hemiptera: Cicadellidae) from the Brazilian Atlantic Rainforest Rev. Bras. Zool.
Mejdalani,Gabriel; Cavichioli,Rodney Ramiro.
The Neotropical sharpshooter Parasubrasaca felixi, gen. nov., sp. nov., is described and illustrated from the Atlantic Rainforest of Southeastern Brazil (state of Espírito Santo). The new genus can be distinguished from other members of the Cicadellini by several morphological features, including a unique modification of the basal portion of the aedeagus, which bears a conspicuous, ventrally directed projection that articulates with the connective. The projection bears a pair of strong spines directed posteriorly. In addition to the external morphology, color pattern, and male genitalia, the female genitalia of the new taxon are also described in detail. A discussion comparing the new genus with similar Neotropical taxa (Subrasaca Young, 1977, Soosiulus...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Auchenorrhyncha; Cicadellinae; Morphology; South America; Taxonomy.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000600012
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A new genus of Neotropical spiders of the family Sparassidae (Arachnida: Araneae) Rev. Bras. Zool.
Pinto,Elaine Cristina; Rheims,Cristina Anne.
ABSTRACT Nungara gen. nov. is proposed to include the type species, Nungara niveomaculata (Mello-Leitão, 1941) comb. nov., transferred from Olios Walckenaer, 1837 and two new species, described from males and females: N. anama sp. nov., from the states of Sergipe, Alagoas and Espírito Santo, and N. gaturama sp. nov., from the states of Sergipe, Bahia and Espírito Santo, all in Brazil. The new genus is distinguished from all other Neotropical sparassid genera by the presence of a deep tegular groove on the male palpal bulb and a hood-like projection on the median septum of the female epigyne. In addition, Olios fuscovariatus Mello-Leitão, 1943, Stasina koluene Mello-Leitão, 1941 and Polybetes proximus Mello-Leitão, 1943 are transferred to Nungara gen. nov....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazil; New species; South America; Taxonomy.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000603011
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A new genus of Oniscidea from South America and a phylogenetic analysis of related genera (Crustacea: Isopoda: Philosciidae) Naturalis
Leistikow, Andreas.
In a collection of terrestrial isopods from Venezuela, a distinct species was identified which does not fit any of the known genera. Therefore, a new taxon Metaprosekia gen.n. is instituted to accomodate the new species. An analysis of its morphological characters revealed a close relationship to the genus Prosekia Vandel, 1968 and allied genera. The phylogeny of this group is discussed and one of its poorly known representatives, Xiphoniscus mirabilis Vandel, 1968 is redescribed on the basis of the type material.
Tipo: Article / Letter to the editor Palavras-chave: Oniscidea; Philosciidae; South America; Phylogeny; Phylogenetic sytematics.
Ano: 2000 URL: http://www.repository.naturalis.nl/record/534411
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A new Neotropical species of Megamelus and the reassignment of Stenocranus maculipes (Hemiptera: Delphacidae) Rev. Soc. Entomol. Argent.
Mariani,Roxana; Sosa,Alejandro J.; de Remes Lenicov,Ana M. M..
We report on two species of Delphacidae from Argentine wetlands, Megamelus nigrifasciatus Mariani & Remes Lenicov sp. nov. and Megamelus maculipes (Berg) comb. nov. The first species was collected from Eryngium sp. (Apiales: Apiaceae) and was described from the brachypters of both sexes. The second one, Stenocranus maculipes (Berg, 1879) collected from Echinodorus grandiflorum (Alismataceae), is proposed as Megamelus maculipes comb.nov. The female macropter holotype is redescribed and the male and female brachypters are described for the first time. Geographic distribution and biological data of both species are reported. The genus Eryngium is cited for the first time as host plant for the genus Megamelus. Additionally, a key is provided to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Megamelus nigrifasciatus; Megamelus maculipes; Apiaceae; Alismataceae; South America.
Ano: 2013 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802013000200005
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A new oligolectic bee species of the genus Rhophitulus Ducke (Hymenoptera, Andrenidae) from South Brazil Rev. Bras. entomol.
Ramos,Kelli dos Santos; Siriani-Oliveira,Samuel; Schlindwein,Clemens.
ABSTRACT The genus RhophitulusDucke, 1907 is a large and complex group of bees of the tribe Protandrenini comprising small, slender, mostly black ground-nesting species that are restricted to South America. We describe a new species of Rhophitulus from Parque Nacional São Joaquim, Urubici, state of Santa Catarina, Brazil. Rophitulus ater sp. nov. is distinctive and easily distinguished from other species of the genus by a unique combination of morphological characters in both sexes, but especially by the following: dull black body, coarsely and densely punctate integument, basal area of metapostnotum depressed and areolate rugose, posterior margin of hind tibia and pygidial fimbria of female with blackish pilosity, and characters of the male genitalia with...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Blumenbachia; Loasaceae; Protandrenini; South America; Taxonomy.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262019000400349
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A new species and a key for the Brazilian species of the genus Heterelmis Sharp, 1882 (Coleoptera: Elmidae, Elminae) Pap. Avulsos de Zool. (São Paulo)
Polizei,Thiago Tadeu Silva.
Abstract Heterelmis Sharp, 1882, comprises 22 species and subspecies with 3 species assigned to Brazil so far. Here the forth species, Heterelmis debilis sp. nov. from Brazil, is described and illustrated. The type material is deposited in the Museum of Zoology of the University of São Paulo, São Paulo, Brazil (MZSP) and Natural History Museum, London, UK (NHMUK). Additionally, an identification key with distributional data for Brazilian species is proposed.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquatic beetles; Riffle Beetles; Neotropical; South America; Taxonomy.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492018000100219
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A new species, new synonymy, and notes on Paravelia Breddin (Hemiptera: Heteroptera: Veliidae) Pap. Avulsos de Zool. (São Paulo)
Rodrigues,Higor D.D.; Moreira,Felipe F.F..
ABSTRACT The broad-shouldered water strider Paravelia cunhai sp. nov. is described and illustrated based on material from the state of Pará, northern Brazil. The new species can be distinguished from all other species in this genus mainly by the dark color of the head and pronotum, absence of pruinosity or silvery pubescence on the anterior lobe of pronotum, maculae pattern on the fore wings, hind femur with row of 22 spines on mesal margin, and general shape of the paramere. This new species was collected in a pool inside a cave without incident light, a habitat recorded for the genus only recently, which reinforces the hypothesis that some species of Paravelia have troglophilic habits. In addition, a photograph of the dorsal habitus and notes concerning...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gerromorpha; South America; Veliinae; Broad-shouldered water striders.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492016001700183
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A new species of Andocaeculus (Acari, Caeculidae) from the Pampa biome, southern Brazil Iheringia, Sér. Zool.
Ott,Ana Paula; Ott,Ricardo.
A new caeculid species Andocaeculus caioi sp. nov. is described from Pampa biome in south Brazil. The species of this family are usually large and strong sclerotized mites with robust and spinulose legs I and II. Until now records of species for South America were known only from Chile and Argentina.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mite; Neotropical; South America; Taxonomy.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212014000300012
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A new species of Aquanirmus Clay & Meinertzhagen (Phthiraptera: Philopteridae) parasitic on the Great Grebe, Podiceps major (Aves: Podicipedidae), in Argentina and Chile Neotropical Entomology
Cicchino,Armando C; González-Acuña,Daniel A.
The new species Aquanirmus major Cicchino & González Acuña found on the Great Grebe, Podiceps major, from different localities of Argentina and Chile, is described and illustrated, giving comments on its affinities and differences with the remaining three species included in the Aquanirmus emersoni-species complex.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chewing lice; Bird lice; Ischnocera; South America; Ectoparasite.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2009000300014
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A new species of Brueelia Kéler (Phthiraptera: Philopteridae) parasitic on the common diuca-finch, Diuca diuca diuca (Aves: Emberizidae) in Chile Neotropical Entomology
Cicchino,Armando C; González-Acuña,Daniel.
A new species of the genus Brueelia Kéler is described as parasitic on the Common Diuca-Finch, Diuca diuca diuca, based on specimens from three localities in Chile: Punitaqui (Coquimbo Province), La Rinconada (Colchagua Province) and Chillán (Ñuble Province). The species is fully described and illustrated, and brief comments on its morphological affinities with allied species are also made.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chewing lice; Bird lice; South America; Ectoparasite.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2009000400011
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A new species of Bryconadenos (Characiformes: Characidae) from the rio Curuá, rio Xingu drainage, Brazil Neotropical Ichthyology
Menezes,Naércio A.; Netto-Ferreira,André Luiz; Ferreira,Katiane M..
A second inseminating species bearing club cells organized into an anal-fin gland in sexually active males belonging to the genus Bryconadenos was recently discovered in the rio Xingu drainage and is described as new. It is distinguished from B. tanaothoros by the presence of a conspicuous dark blotch at the humeral region, and fewer scale rows between dorsal-fin origin and anal-fin origin. Males of B. weitzmani have longer pelvic fins at sizes beyond 30 mm SL. Bryconadenos weitzmani is further distinguished from B. tanaothoros by the cup shape of the anal-fin gland, its lower part much more developed than the upper, whereas in B. tanaothoros there is just a slit separating the almost equally developed upper and lower parts.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Freshwater fish; South America; Neotropical; Insemination; Systematics; Taxonomy.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000200003
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A new species of Chomelia (Rubiaceae, Guettardeae) from the Brazilian Planalto Naturalis
Delprete, P.G..
During the ongoing treatment of the Rubiaceae for the Flora of the states of Goiás and Tocantins and the Flora of the Federal District of Brazil, a new species of Chomelia (C. kirkbridei Delprete) from the Brazilian Planalto was found, and is here described and illustrated. A key to the species of Chomelia occurring in the states of Goiás and Tocantins and the Federal District of Brazil, is also included.
Tipo: Article / Letter to the editor Palavras-chave: Guettardeae; Rubiaceae; Chomelia; Federal District; Goiás; Brazil; South America; Floristics; Taxonomy.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/525975
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A New Species Of Cyclanthera (Cucurbitaceae, Sicyeae) From Southern South America Darwiniana
Lima,Luís F. P; Pozner,Raúl.
We describe and illustrate Cyclanthera oligoechinata (Cucurbitaceae, Sicyeae) a new species from southern Brazil (Paraná), northeastern Argentina (Misiones), and central and southern Paraguay (San Pedro). This new species resembles C. hystrix, C. eichleri and C. quinquelobata, but differs by its almost smooth fruits, and pistillate flowers and fruits on long, slender pedicels. A key to distinguish C. oligoechinata from the closest species is also included.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cucurbitaceae; Cyclanthera; South America; Taxonomy.
Ano: 2008 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932008000200010
Registros recuperados: 274
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