Consulta: subjectFacets:"South America"
Registros recuperados: 259
Data/hora: 08/06/2024 01:28:36

The genera of Caesalpinioideae (Leguminosae) from South America
Provedor de dados: Darwiniana
Autores: Ulibarri,Emilio A.
The South American flora includes 65 genera of Caesalpinioideae (Leguminosae) with wide morphological variation. The four tribes of that subafmily are represented: 31 genera belong to the Caesalpinieae (3 of them introduced); 9 to the Cassieae; 2 to Cercideae (1 introduced), and 23 to Detarieae (2 introduced). Among the South American Caesalpinoideae, 30 genera are endemic (mainly to Brazil), the remaining ones inhabit in tropical and subtropical areas from both hemispheres. All of them grow in diverse habitats: from rainforests, evergreen or deciduous forests, to savannas, semideserts and high mountains. Tribes and genera are arranged according to Polhill &amp;amp; Raven (1981), only Poepiggia has been transferred from Caesalpinieae to Cassieae, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caesalpinioideae; Distribution; Leguminosae; Morphology; South America; Taxonomy; Utilization.
Ano: 2008
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932008000100007

Carex sagei (Cyperaceae), the correct name for C. barrosii
Provedor de dados: Darwiniana
Autores: Wheeler,Gerald A.
The holotype of Carex sagei comes from central Chile, and this name has long been treated as a synonym of C. fuscula. Recent study indicates, however, that C. sagei is referrable to Carex section Ceratocystis, whereas C. fuscula belongs in section Spirostachyae. It is also demonstrated that C. sagei is the correct name for plants currently called C. barrosii. Carex sagei is known from Argentina, Chile, and the Falkland Islands (Islas Malvinas), where it frequents hydric habitats, such as marshes, wet meadows, and the margins of lakes, from near sea level to about 850 m.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carex; Cyperaceae; Ceratocystis; South America; Taxonomy.
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932007000200010

A synopsis of the South American Lepidium (Brassicaceae)
Provedor de dados: Darwiniana
Autores: Al-Shehbaz,Ihsan A.
Fifty native and 12 naturalized species of Lepidium grow in South America, and a key to all 62 species is presented. Three new species from Argentina (L. hickenii, L. pedersenii, and L. santacruzensis) and two from Peru (L. cuzcoensis and L. werffii) are described, illustrated, and their relationships to nearest relatives are discussed. The new combination Lepidium crassius is proposed. Furthermore, 19 taxa (Coronopus didymus var. macrocarpus, C. didymus var. procumbens, L. abrotanifolium var. steinmannii, L. affine, L. argentinum, L. auriculatum, L. bonariense var. pseudovirginicum, L. calycinum var. integrifolium, L. costaricense, L. cumingianum var. orbiculatum, L. cumingianum subsp. berteroanum, L. depressum, L. myrianthum, L. neglectum, L. parodii, L....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brassicaceae; Lepidium; South America; Taxonomy.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932010000200002

The genus Sisymbrium in South America, with synopsesof the genera Chilocardamum, Mostacillastrum, Neuontobotrys, and Polypsecadium (Brassicaceae)
Provedor de dados: Darwiniana
Autores: Al-Shehbaz,Ihsan A.
Based on extensive molecular and morphological data, all of the native South American species previously assigned to Sisymbrium (tribe Sisymbrieae) are assigned to the genera Chilocardamum, Mostacillastrum, Neuontobotrys, and Polypsecadium of the tribe Schizopetaleae (Brassicaceae). Akey distinguishing these four genera is presented. For each genus, a revised synopsis, an expanded generic description, a key to species, and an enumeration of all taxa is given. Polypsecadium zoellneri is described as a new species from northern Chile, and its distinguishing characters from its nearest relative P. gilliesii are discussed. The following 36 new combinations are proposed: Chilocardamum castellanosii, C. longistylum, C. onuridifolium, Mostacillastrum andinum, M....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brassicaceae; Chilocardamum; Mostacillastrum; Neuontobotrys; Polypsecadium; Sisymbrium; South America.
Ano: 2006
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932006000200004

Micromorphological characters supporting the removal of Senecio series Otopteri from Senecio (Asteraceae, Senecioneae)
Provedor de dados: Darwiniana
Autores: Riva,Adriana; Pozner,Raúl; Freire,Susana E.
Recent molecular studies suggest that Senecio otites belonging to Senecio sect. Senecio ser. Otopteri should be removed from Senecio so that this large and taxonomically complicated genus would be monophyletic. In order to evaluate the taxonomic position of Senecio otites and the placement of series Otopteri, 13 species belonging to Senecio sect. Senecio ser. Otopteri, including S. otites, were examined for micromorphological characters of the style branches (stigmatic surface, stylearm apices) and anthers (filament collar, anther bases, anther appendages). Three states of these micromorphological characters were present in nearly all species of Senecio sect. Senecio ser. Otopteri: 1) the style-arms are apically convex or subconvex, papillate, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Asteraceae; Compositae; Micro-morphology; Section Otites; Senecio; Series Otopteri; South America.
Ano: 2009
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932009000200011

Placentation patterns and seed number in fruits of South American Solanum subgen. Leptostemonum (Solanaceae) species
Provedor de dados: Darwiniana
Autores: Chiarini,Franco E.; Barboza,Gloria E.
Thirty-seven South American species representing seven sections of Solanum subgen. Leptostemonum were analyzed. Andromonoecious as well as hermaphrodite species were considered. The length and width of their fruits was measured, and the number of seeds per fruit was counted. Medial cross sections of fresh, ripe fruits were observed with a stereoscopic microscope and illustrated. Six placentation patterns and three types of seeds were described. A relationship among seed number, fruit size, fruit color and sexual system was detected by means of statistical analysis. These results suggest that andromonoecy affects fruit size and placentation patterns, in order to contain a higher number of seeds per fruit.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Andromonoecy; Leptostemonum; Placentation; Seed number; Solanum; South America.
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932007000200002

A New Species Of Cyclanthera (Cucurbitaceae, Sicyeae) From Southern South America
Provedor de dados: Darwiniana
Autores: 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

Saline waters and macroinvertebrates in subtropical Andean streams
Provedor de dados: Ecología Austral
Autores: González Achem,Ana Lucía; Rolandi,María Laura; Fernández,Hugo Rafael.
Salinity of rivers is an expression of the concentration of salts dissolved in the water body. Secondary salinization is the increase in salinity of a water body as a result of human activity. Salinity may restrict the species composition of aquatic biota to tolerant species. In this study we analyzed benthic communities and their relationship with physicochemical variables in natural pristine systems and impacted environments. We collected benthic community samples using a D-net and water samples for laboratory major ions analysis. We noted a critical limit of electrical conductivity above 800µS/cm breaking up taxa pools of benthic macroinvertebrates. We observed that taxonomic richness is a sensitive indicator to detect effects of secondary salinization....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: South America; Secondary salinization; Benthic community; Seasonal rainfall; Salt mining.
Ano: 2015
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2015000100004

CONSERVATION STATE OF SILURIFORMES FISHES FROM THE RAMSAR SITE JAAUKANIGAS (MIDDLE PARANA RIVER), ARGENTINA
Provedor de dados: Gayana
Autores: Cordiviola,Elly; Campana,Mirta; Demonte,Danilo; del Barco,Daniel; Trógolo,Alicia.
The Siluriformes conservation state was quantified by means of the SUMIN index, composed by the sum of 12 outstanding variables for the species survival and/or conservation. An arranged list of the thirty -three Siluriformes species from the Ramsar Site was obtained based on a gradient of conservation necessity. The species were defined as Vulnerable of Maximum Priority: Pseudoplatystoma corruscans, P. f. fasciatum, Luciopimeloduspati and Hemisorubimplatyrhinchos; species Vulnerables of Special Attention: Oxydoras kneri, Ageneiosus valenciennesi, Sorubim lima, Platydoras costatus, Pterodoras granulosus, Sturisoma robustum, Trachydoras paraguayensis and Ageneiosus brevifilis. The remaining species, were qualified as Not Threatened: Corydoras paleatus,...
Tipo: Journal article
Palavras-chave: Conservation index; Ichthyofauna; South America.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382009000200006

DEFINITION AND DIAGNOSIS OF A NEW TRIBE OF SIGMODONTINE RODENTS (CRICETIDAE: SIGMODONTINAE), AND A REVISED CLASSIFICATION OF THE SUBFAMILY
Provedor de dados: Gayana
Autores: D'Elía,Guillermo; Pardiñas,Ulyses F. J; Teta,Pablo; Patton,James L.
A new tribe of sigmodontine rodents is formally defined and diagnosed. The tribe contains the extant genera Abrothrix (including Chroeomys), Chelemys, Geoxus, Pearsonomys, and Notiomys, a group of taxa distributed in the central and southern Andes and lowlands both east and west of the cordillera. The new tribe presents a unique combination of characters including nasals and premaxilla usually projected anterior to the incisors, moderately trumpeted; zygomatic plate with upper free border reduced or obsolete; and third upper molar reduced and sub-cylindrical in out-line with an internal ring-like enamel fossette. Molecular phylogenetic analyses indicate that Abrothrix is sister to a clade containing the remaining genera of the new tribe.
Tipo: Journal article
Palavras-chave: Abrothrix; Chelemys; Chroeomys; Geoxus; Pearsonomys; Notiomys; South America; Classification.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382007000200007

CHILEAN MARINE MOLLUSCA OF NORTHERN PATAGONIA COLLECTED DURING THE CIMAR-10 FJORDS CRUISE
Provedor de dados: Gayana
Autores: Cárdenas,Javiera; Aldea,Cristian; Valdovinos,Claudio.
The tip of the South American cone is one of the most interesting Subantarctic areas, both biogeographically and ecologically. Nonetheless, knowledge of the area's biodiversity, in particular that of the subtidal marine habitats, remains poor. Therefore, in 2004, a biodiversity research project was carried out as a part of the cruise Cimar-10 Fjords, organized and supported by the Chilean National Oceanographic Committee (CONA). The results of the subtidal marine mollusk surveys are presented herein. The samples were collected aboard the Agor 60 "Vidal Gormaz" in winter 2004. The study area covered the northern Chilean Patagonia from Seno de Relocanví (41°31'S) to Boca del Guafo (43°49'S), on the continental shelf from 22 to 353 m depth. The Mollusca were...
Tipo: Journal article
Palavras-chave: Biodiversity; Taxonomy; South America; Fjords; Polyplacophora; Gastropoda; Bivalvia; Scaphopoda.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382008000200010

Pelagic Biodiversity and Biogeography around the SouthAmerican continent
Provedor de dados: Gayana
Autores: Pierrot-Bults,Annelies C.
Biogeography around South America is well documented on the Atlantic side and less well documented on the Pacific side especially south of about 30º S. The South Pacific oceanic areas are the least known of all pelagic areas. The different approaches to determine biogeographic provinces (e.g. the classical one showing mainly latitudinal and watermass distribution patterns based on presence/absence of species; and the biogeochemical approach based on productivity regimes and modelling) are discussed. The latter shows more east-west division. Testing of these concepts will probably reveal more coastal provinces in the Pacific area. The transitional area in the South Pacific is also an interesting area for molecular species research because there are some...
Tipo: Journal article
Palavras-chave: Pelagic biodiversity; Biogeography; South America.
Ano: 2003
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382003000200005

Diverse approaches to questions of Biodiversity: German contributions to studies of Marine Benthos around South America and Antartica
Provedor de dados: Gayana
Autores: Gutt,Julian; Arntz,Wolf E; Balguerias,Eduardo; Brandt,Angelika; Gerdes,Dieter; Gorny,Matthias; Sirenko,Boris.
A look at the latitudinal gradient from North America via South America to Antarctica supports the impression that the ecosystems of this part of the world provide perfect conditions for marine biodiversity studies. Several bilateral or international initiatives with major German contributions have focused on biodiversity questions, especially in South America and Antarctica. At depths &gt; 50 m accessible to shipboard sampling, an oxygen minimum zone (OMZ) prevails off Peru and Chile (except in the extreme south). The macrobenthic biota associated with the OMZ are extremely poor but show a gradient of increasing diversity at great depths and towards the south. In the southern Chilean fjords and channels, habitat heterogeneity is high and differences in...
Tipo: Journal article
Palavras-chave: Marine biodiversity; South America; Antarctica.
Ano: 2003
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382003000200007

THE CONSERVATION STATE OF CHARACIDAE FISH (PISCES: CHARACIFORMES) IN AN AREA OF THE PLATA BASIN, ARGENTINA
Provedor de dados: Gayana
Autores: Zayas,Marcelo A; Cordiviola,Elly.
The fish conservation was quantified by means of the index SUMIN, composed by the summation of 12 outstanding variables for the species survival and/or conservation. An arranged list of 53 species was obtained according to a gradient of conservation necessity. The species determined as vulnerable of maximum priority: Salminus brasiliensis, Pygocentrus nattereri, Serrasalmus marginatus and S. rhombeus; species vulnerable of special attention: Brycon orbygnianus, Triportheus paranensis, Serrasalmus serrulatus, S. spilopleura, Piaractus mesopotamicus, Hemigrammus mattei, Cynopotamus argenteus, Astyanax correntinus, Gymnocorymbus ternetzi, Hyphessobrycon anisitsi and Mylossoma orbignyanus. The remaining species, were qualified as not threatened: Poptella...
Tipo: Journal article
Palavras-chave: Conservation; Fish; Characidae; South America.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382007000200006

Taxonomic revision of the genus Gamochaeta Wedd. (Gnaphalieae, Asteraceae) in Chile
Provedor de dados: Gayana Botánica
Autores: Freire,Susana E.; Salomón,Luciana; Bayón,Néstor D.; Baeza,Carlos M.; Muñoz-Schick,Mélica; Migoya,María A.
ABSTRACT Twenty four species of Gamochaeta (Gnaphalieae, Asteraceae), G. aliena, G. alpina, G. americana, G. andina, G. axillaris, G. chamissonis, G. depilata, G. deserticola, G. falcata, G. filaginea, G. humilis, G. longipedicellata, G. neuquensis, G. nivalis, G. oligantha, G. procumbens, G. ramosa, G. serpyllifolia, G. simplicicaulis, G. spiciformis, G. stachydifolia, G. subfalcata, G. valparadisea, and G. villarroelii, are formally monographed with morphological descriptions, illustrations, geographic distribution and habitat, distribution maps, phenology, lists of representative specimens examined, and a comprehensive identification key for every species. A new name Gamochaeta ramosa S.E. Freire, N. Bayón &amp; C.M. Baeza for Gnaphalium ramosum Phil....
Tipo: Journal article
Palavras-chave: Compositae; Endemism; Lectotypification; South America; Synonyms; Taxonomy.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432016000200292

Chromosome studies in Orchidaceae from Argentina
Provedor de dados: Genetics and Molecular Biology
Autores: Daviña,Julio Rubén; Grabiele,Mauro; Cerutti,Juan Carlos; Hojsgaard,Diego Hernán; Almada,Rubén Dario; Insaurralde,Irma Stella; Honfi,Ana Isabel.
The center of diversity of Argentinean orchids is in the northeast region of the country. Chromosome numbers and karyotype features of 43 species belonging to 28 genera are presented here. Five chromosome records are the first ones at the genus level; these taxa are Aspidogyne kuckzinskii (2n = 42), Eurystyles actinosophila (2n = 56), Skeptrostachys paraguayensis (2n = 46), Stigmatosema polyaden (2n = 40) and Zygostates alleniana (2n = 54). In addition, a chromosome number is presented for the first time for 15 species: Corymborkis flava (2n = 56), Cyclopogon callophyllus (2n = 28), C. oliganthus (2n = 64), Cyrtopodium hatschbachii (2n = 46), C. palmifrons (2n = 46), Galeandra beyrichii (2n = 54), Habenaria bractescens (2n = 44), Oncidium edwallii (2n =...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chromosome number; Karyotype features; Polyploidy; Karyology; Orchids; South America.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000400024

Genetic structure of honeybee populations from southern Brazil and Uruguay
Provedor de dados: Genetics and Molecular Biology
Autores: Diniz,Nilza Maria; Soares,Ademilson Espencer Egea; Sheppard,Walter Steve; Del Lama,Marco Antonio.
Apis mellifera scutellata was introduced to Brazil in 1956 and Africanized honeybee populations have now spread from Argentina to the southwestern United States. Temperate climatic restrictions seem to be a natural limit to Africanized honeybee expansion around parallels 35° to 40° SL. We used allozyme loci (Mdh-1 and Hk-1) and mtDNA haplotypes to characterize honeybee populations in southern Brazil and Uruguay and define a possible transition area between Africanized and European bees. Samples of 194 bee colonies were collected from ten localities between 30°-35° SL and 52°-59° WL. The mtDNA restriction patterns of these colonies were obtained through digestion of the mitochondrial genome by Eco RI, or by digestion by Bgl II and Xba I of the cytochrome B...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Africanized honeybees; Transition area; South America; MtDNA; Allozymes; Population genetics.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000100008

A snapshot of gene therapy in Latin America
Provedor de dados: Genetics and Molecular Biology
Autores: Linden,Rafael; Matte,Ursula.
Gene therapy attempts the insertion and expression of exogenous genetic material in cells for therapeutic purposes. Conceived in the 1960s, gene therapy reached its first clinical trial at the end of the 1980s and by December 2013 around 600 genuine open clinical trials of gene therapy were registered at NIH Clinical Trials Database. Here, we summarize the current efforts towards the development of gene therapy in Latin America. Our survey shows that the number of scientists involved in the development of gene therapy and DNA vaccines in Latin America is still very low. Higher levels of investment in this technology are necessary to boost the advancement of innovation and intellectual property in this field in a way that would ease both the social and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gene therapy; Gene transfer; Gene delivery; Viral vector; South America.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000200015

Cytogenetic divergence in two sympatric fish species of the genus Astyanax Baird and Girard, 1854 (Characiformes, Characidae) from northeastern Brazil
Provedor de dados: Genetics and Molecular Biology
Autores: Medrado,Aline Souza; Ribeiro,Mavione Souza; Affonso,Paulo Roberto Antunes de Mello; Carneiro,Paulo Luíz Souza; Costa,Marco Antônio.
The fish genus Astyanax is widespread throughout the Neotropical region and is one of the most species-rich genera of the Characiformes. Cytogenetic studies of Astyanax have revealed marked intra-and interspecific diversity, with the identification of various species complexes. In this report, we describe the karyotypic structure of two sympatric species of Astyanax (Astyanax sp. and Astyanax aff. fasciatus) from the Middle Contas River basin in the northeastern Brazilian state of Bahia. Both species had 2n = 48 but differed in their karyotypic formulae. Small heterochromatic blocks and multiple nucleolar organizer regions (NORs) were identified in both species. Terminal CMA3+/DAPI-signals were observed in Astyanax sp. and A. aff. fasciatus, mostly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ag-NOR; Cytotaxonomy; Fish; Fluorochromes; South America.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000500014

First record of Wolbachia in South American terrestrial isopods: prevalence and diversity in two species of Balloniscus (Crustacea, Oniscidea)
Provedor de dados: Genetics and Molecular Biology
Autores: Almerão,Mauricio Pereira; Fagundes,Nelson Jurandi Rosa; Araújo,Paula Beatriz de; Verne,Sébastien; Grandjean,Frédéric; Bouchon,Didier; Araújo,Aldo Mellender.
Wolbachia are endosymbiotic bacteria that commonly infect arthropods, inducing certain phenotypes in their hosts. So far, no endemic South American species of terrestrial isopods have been investigated for Wolbachia infection. In this work, populations from two species of Balloniscus (B. sellowii and B. glaber) were studied through a diagnostic PCR assay. Fifteen new Wolbachia 16S rDNA sequences were detected. Wolbachia found in both species were generally specific to one population, and five populations hosted two different Wolbachia 16S rDNA sequences. Prevalence was higher in B. glaber than in B. sellowii, but uninfected populations could be found in both species. Wolbachia strains from B. sellowii had a higher genetic variation than those isolated from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Wolbachia; Prevalence; Diversity; South America; Oniscidea.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000600013

Phylogeographic history of South American populations of the silky anteater Cyclopes didactylus (Pilosa: Cyclopedidae)
Provedor de dados: Genetics and Molecular Biology
Autores: Coimbra,Raphael Teodoro Franciscani; Miranda,Flávia Regina; Lara,Camila Clozato; Schetino,Marco Antônio Alves; Santos,Fabrício Rodrigues dos.
Abstract Cyclopes didactylus, commonly called silky anteater, is the smallest and least studied of the anteaters. It is an arboreal species occurring in rainforests, ranging from southern Mexico to Central and South America, with an apparently disjoint distribution between Amazon and Atlantic rainforests in Brazil. Although seven subspecies are recognized, little is known about its geographical variation. Thus, to evaluate the population dynamics and evolutionary history of the South American silky anteater, we analyzed 1542 bp sequences of the mitochondrial control region (CR), COI and Cyt-b genes of 32 individuals. Haplotype network, AMOVA and molecular dating analyses were performed and identified seven geographic clusters. The split of lineages...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Xenarthra; Mitochondrial DNA; Population structure; Molecular dating; South America.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000100040

The diet of the black widow spider Latrodectus mirabilis (Theridiidae) in two cereal crops of central Argentina
Provedor de dados: Iheringia Série Zoologia
Autores: Pompozzi,Gabriel; Ferretti,Nelson; Schwerdt,Leonela; Copperi,Sofía; Ferrero,Adriana A.; Simó,Miguel.
The spider Latrodectus mirabilis (Holmberg, 1876) is commonly found in cereals crops of central Argentina. We studied its diet composition at the field and capture rate on leaf-cutting ants based on laboratory experiments. This study comprises the first approach that documents the diet of L. mirabilis in wheat and oat fields of central Argentina. We identified 1,004 prey items collected from its webs during the last phenological stages of both cereal crops. The prey composition was variable but the spiders prey mainly on ants (Formicidae, Hymenoptera), who represented more than 86% of the total. Meanwhile, in the capture rate experiences we registered a high proportion of ants captured by spiders at the beginning of experiences, capturing the half of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet composition; Capture rate; Polyphagous predator; South America.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212013000400009

The genus Trichorhina Budde-Lund in Brazil, with description of seven new species (Isopoda, Oniscidea, Platyarthridae)
Provedor de dados: Iheringia Série Zoologia
Autores: Souza,Leila A.; Araújo,Joafrâncio P. de; Campos-Filho,Ivanklin S.
Seven new species of Trichorhina Budde-Lund, 1908 are described, six from Southeastern Brazil, T. biumbonata sp. nov., T. lenkoi sp. nov., T. myrmecophila sp. nov., T. orensis sp. nov., T. sexdens sp. nov., T. tropidocerata sp. nov., and one from Central Brazil, T. crassisetae sp. nov. An emended diagnosis for the genus and a key to the 19 species recorded from Brazil are provided. Trichorhina acuta Araújo &amp;amp; Buckup, 1994 is recorded to state of Mato Grosso do Sul.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Terrestrial isopods; Taxonomy; South America; Neotropical Region.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212011000200012

Freshwater sponges (Porifera, Demospongiae) indicators of some coastal habitats in South America: redescriptions and key to identification
Provedor de dados: Iheringia Série Zoologia
Autores: Volkmer-Ribeiro,Cecilia; Machado,Vanessa de Souza.
Surveys for freshwater sponges were performed at several water bodies at sandy environments along a north-south direction of particularly the Brazilian coastal line. The results allowed for the distinction of four different species-specific environments along this coastal border. The main fact considered was the dominant or the sole recurrent occurrence of a single sponge species at one particular habitat. The first one is that of the lagoonal mesohaline habitats at the tropical and subtropical realms, indicated by Spongilla alba Carter, 1849. The second one refers to shallow ponds among dunes at the tropical area indicated by Corvoheteromeyenia heterosclera (Ezcurra de Drago, 1974). The third one is that of also shallow ponds close to the dune belt at the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Freshwater sponges; Indicator species; Sandy coastal environments; Paleo-reconstructions; South America.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212007000200005

On the true identity of Scopadus ciliatus Pascoe, reinstatement of Acanthomerosternoplini, and description of a new species (Coleoptera, Cerambycidae, Lamiinae)
Provedor de dados: Iheringia Série Zoologia
Autores: Santos-Silva,Antonio; Nascimento,Francisco E. de L.
ABSTRACT A new species, Scopadus charynae sp. nov., is described and illustrated. Acanthomerosternoplini Tippmann, 1955 is reinstated. The female of Scopadus ciliatus Pascoe, 1857 is described, and previous misidentification of this species from is discussed; the distribution of this species is updated.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Misidentification; Peru; South America; Taxonomy.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212019000100203

New species of Eclipta from the Brazilian Atlantic Rainforest (Coleoptera, Cerambycidae, Cerambycinae, Rhinotragini)
Provedor de dados: Iheringia Série Zoologia
Autores: Nascimento,Francisco E. de L.; Santos-Silva,Antonio.
ABSTRACT In this work, a new species of cerambycid beetles is described and illustrated: Eclipta dendensis sp. nov., from the state of Bahia, Brazil.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical Region; South America; Taxonomy.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212017000100227

Ontogenetic variation of plastral spotting pattern in Phrynops hilarii (Testudines, Chelidae)
Provedor de dados: Iheringia Série Zoologia
Autores: Cabrera,Mario R.; Colantonio,Sonia E.
The plastral spotting variation in the chelid turtle Phrynops hilarii (Duméril &amp;amp; Bibron, 1835) in relation to sex, size, and geographic procedence of individuals was analyzed. States for qualitative characters were analyzed using non-parametric tests. Quantitative characters (shell and scute measurements) were standardized for body size by linear regression against carapace length, and were subjected to principal components analysis and canonical discriminant function analysis. Results suggest that increased plastral spotting is a polymorphic ontogenetic trait in P. hilarii. Neither hatchlings nor juveniles have plastral pattern moderately or heavily pigmented. The simplest pattern, however, may persist without changes in some adults. There are no...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reptilia; Chelidae; Phrynops; Pattern variation; South America.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212001000200017

Description of Scoloplos maranhensis sp. nov. (Orbiniidae, Annelida) from tropical Brazilian mangrove
Provedor de dados: Iheringia Série Zoologia
Autores: Oliveira,Veronica M.; Cutrim,Allana S. T.; Vieira,Anna Karen M.; Ferreira,Camila N.; Almeida,Zafira S.; Nogueira Júnior,Miodeli.
ABSTRACT A new species of orbiniid, Scoloplos maranhensis sp. nov., is described from a tropical mangrove (Quebra Pote, state of Maranhão, Brazil, 02°41.344’S; 44°12.604’W) along with a comparative table with all Scoloplos species. The main distinguishing characters of S. maranhensis sp. nov. are thorax with 12 chaetigers, neuropodia from first chaetiger, notopodia and neuropodia without papillae, conical branchiae from 12th chaetiger to the end of the body, being larger and more robust in the anterior segments. Thoracic notopodia with seven crenulated capillary chaetae and abdominal notopodia with furcated and capillary chaetae. Thoracic neuropodia rounded with two crenulated capillary chaetae and six slender-smooth hooks, abdominal neuropodia with a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species; Polychaeta; Biodiversity; South America.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212019000100209

A new species of rake-legged mite Neocaeculus (Acari, Caeculidae) from Brazilian semiarid and new data on distribution of Andocaeculus caioi
Provedor de dados: Iheringia Série Zoologia
Autores: Ott,Ana Paula; Ott,Ricardo.
ABSTRACT A new caeculid species Neocaeculus setecidades sp. nov. from the semiarid is described from the National Park Sete Cidades located in the state of Piauí, Brazil. The species is included in Neocaeculus Coineau, 1967 due the presence of different sized claws on leg I, absence of bothridia in the tarsi of anterior legs and the aspidosomal sclerite not overhanging the gnathosoma in lateral view. New data on distribution of Andocaeculus caioi Ott &amp; Ott, 2014 is presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical; South America; Taxonomy.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212018000100227

Phylogeny of Thylamys (Didelphimorphia, Didelphidae) species, with special reference to Thylamys karimii
Provedor de dados: Iheringia Série Zoologia
Autores: Carvalho,Bianca de A; Oliveira,Luiz F. B; Mattevi,Margarete S.
The genus Thylamys Gray, 1843 lives in the central and southern portions of South America inhabiting open and shrub-like vegetation, from prairies to dry forest habitats in contrast to the preference of other Didelphidae genera for more mesic environments. Thylamys is a speciose genus including T. elegans (Waterhouse, 1839), T. macrurus (Olfers, 1818), T. pallidior (Thomas, 1902), T. pusillus (Desmarest, 1804), T. venustus (Thomas, 1902), T. sponsorius (Thomas, 1921), T. cinderella (Thomas, 1902), T. tatei (Handley, 1957), T. karimii (Petter, 1968), and T. velutinus (Wagner, 1842) species. Previous phylogenetic analyses in this genus did not include the Brazilian species T. karimii, which is widely distributed in this country. In this study, phylogenetic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytochrome b; Didelphidae; Didelphimorphia; South America; Thylamys phylogeny.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212009000400012

A molecular contribution to the controversial taxonomical status of some freshwater snails (Caenogastropoda: Rissooidea, Cochliopidae) from the Central Andes desert to Patagonia
Provedor de dados: Iheringia Série Zoologia
Autores: 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

A new species of Andocaeculus (Acari, Caeculidae) from the Pampa biome, southern Brazil
Provedor de dados: Iheringia Série Zoologia
Autores: 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

Revisão das espécies sul-americanas de Euhybus (Diptera, Hybotidae, Hybotinae) do grupo purpureus
Provedor de dados: Iheringia Série Zoologia
Autores: Ale-Rocha,Rosaly.
The South American species of Euhybus Coquillett, 1895 (Diptera, Hybotidae, Hybotinae) of the purpureus species-group are reviewed. A diagnosis for this group of species is presented and six new species are described: E. fuscipennis, E. grandis, E. novoaripuanensis, E. niger, E. reduncus and E. tomentosus. New records are made and the relationships of the purpureus species-group with other species-groups of Euhybus are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: South America; Taxonomy; Identification key; New species; Euhybus.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212004000400003

Validation of Eclipta dendensis Nascimento &amp;amp; Santos-Silva, 2017 (nomen nudum) (Coleoptera, Cerambycidae, Cerambycinae, Rhinotragini)
Provedor de dados: Iheringia Série Zoologia
Autores: Nascimento,Francisco E. de L.; Santos-Silva,Antonio.
ABSTRACT Eclipta dendensis Nascimento &amp; Santos Silva, 2017 (nomen nudum) is validated. The Neotropical Eclipta Bates, 1873, together with five other genera, composes a generic complex in Rhinotragini, which were previously allocated in Ommata White, 1855. In Brazil, many species of Eclipta are distributed in the Amazon and Atlantic forest regions. In this work, Eclipta dendensis sp. nov. from the Brazilian Atlantic Forest is described and illustrated.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical region; South America; Taxonomy.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212018000100206

First illustrated description of the male of Diphya macrophthalma, the type species of the genus (Araneae, Tetragnathidae)
Provedor de dados: Iheringia Série Zoologia
Autores: Marusik,Yuri M.; Omelko,Mikhail M.
ABSTRACT Diphya macrophthalma Nicolet, 1849, a type species of the genus and known by only holotype female from Central Chile, is redescribed in details based on recently collected material. The male is described in details and illustrated for the first time. Diphya rugosa Tullgren, 1902 previously considered as junior synonym of D. macrophthalma is revalidated. The known distribution of Diphya species from southern South America is mapped. Comments about status of northernmost populations of D. spinifera Tullgren, 1902 are given.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aranei; South America; Chile; Argentina; Revalidisation.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212017000100236

New genus of Psychodinae (Diptera, Psychodidae) from Argentina
Provedor de dados: Iheringia Série Zoologia
Autores: Omad,Guillermo; Mangudo,Carolina; Gleiser,Raquel M.
ABSTRACT Adults (male and female) and pupae of Chuspilepia saltenia gen. nov., sp. nov. were collected in tree holes in the Yungas rainforest, near San Ramón de la Nueva Orán city, Salta province, Argentina. It was not possible to place this new species in any known genera using the available keys and published descriptions, thus a new genus is proposed for the Neotropical region of Argentina.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: South America; New species; Chuspilepia; Rainforest; Neotropical.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212015000400499

Etiologia de algumas doenças de bezerros de corte no Estado de Mato Grosso do Sul.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: MADRUGA, C. R.; GOMES, R.; SCHENK, M. A. M.; KESSLER, R. H.; GRATÃO, G.; GALES, M. E.; SCHENK, J. A. P.; ANDREASI, M.; BIANCHIN, I.
Foi realizado um levantamento de algumas doenças de bezerros de corte do nascimento ao desmame criados extensivamente na região de Campo Grande, Estado de Mato Grosso do Sul. Foi observado índice médio de mortalidade de 5,9% e o de morbidade de 26,8%. Os maiores índices de mortalidade ocorreram em fazendas com vacas positivas ao teste sorológico para o diagnóstico da brucelose.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Bovino de corte; Sanidade; América do Sul; Brasil; Mato Grosso do Sul; Calf; Disease; Health; Oetiology.; Bezerro; Etiologia; Doença.; South America; Brazil; Beef cattle.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/319326

Boll weevil in South America.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: CAMPANHOLA, C.; MORAES, G. J. de.
bitstream/item/145707/1/1994FL001-CAmpanhola-boll-2405.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Bollweevil; Insect; Production system; Bicudo do algodoeiro; Manejo integrado; IPM; Brasil; Paraguai; America do Sul.; Anthonomus Grandis; Algodão; Inseto; Praga; Sistema de Produção.; Argentina; South America; Paraguay; Cotton; Integrated pest management; Brazil.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/11770

Avaliacao do desempenho de cruzamentos entre racas taurinas e zebuinas em diferentes regioes do Brasil central.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: NOBRE, P. R. C.; PORTO, J. C. A.; MATTOS, S. de; ROSA, A. do N.; SILVA, L. O. C. da; MARIANTE, A. da S.; FIGUEIREDO, G. R. de; ABREU, G. P. de.
bitstream/item/137571/1/PESQ-EM-ANDAMENTO-26.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Taurino; America do sul; Brasil; Regiao Centro-Oeste; Desempenho; Breed; West Central Region.; Bovino; Cruzamento; Raça.; South America; Cattle; Crossbreds; Brazil; Zebu.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/319794

The tsunami signature on a submerged promontory: the case study of the Atacames Promontory, Ecuador
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Ioualalen, Mansour; Ratzov, G.; Collot, Jean-yves; Sanclemente, E.
P&gt;Shelf promontories exhibit very specific bathymetric features with regards to tsunamis. Because of their submerged cape morphology, a potential tsunami generated seawards of the promontory will exhibit a specific mode of propagation and coastal impact. To identify this peculiar tsunami signature, the Atacames Promontory, Ecuador, was chosen as a case study (another example is the shelf of the Nile delta, Egypt). The area is tectonically very active, hosts earthquakes among the most powerful recorded, as well as areas of slope instabilities that have triggered significant submarine landslides in the past (several cubic kilometres of volume). Both types of events are likely to be tsunamigenic. To examine the tsunami behaviour at the coastal area of the...
Tipo: Text
Palavras-chave: Tsunamis; Site effects; Wave propagation; Submarine landslides; South America.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00200/31101/29509.pdf

First Assessment of the Benthic Meiofauna Sensitivity to Low Human-Impacted Mangroves in French Guiana
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Michelet, Claire; Zeppilli, Daniela; Hubas, Cédric; Baldrighi, Elisa; Cuny, Philippe; Dirberg, Guillaume; Militon, Cécile; Walcker, Romain; Lamy, Dominique; Jézéquel, Ronan; Receveur, Justine; Gilbert, Franck; Houssainy, Amonda El; Dufour, Aurélie; Heimbürger-boavida, Lars-eric; Bihannic, Isabelle; Sylvi, Léa; Vivier, Baptiste; Michaud, Emma.
Bioindicators assess the mangroves ecological state according to the types of pressures but they differ with the ecosystem’s specificities. We investigated benthic meiofauna diversity and structure within the low human-impacted mangroves in French Guiana (South America) in response to sediment variables with various distances to the main city. Contaminant’s concentrations differed among the stations, but they remained below toxicity guidelines. Meiofauna structure (Foraminifera, Kinorhyncha, Nematoda) however varied accordingly. Nematode’s identification brought details on the sediment’s quality. The opportunistic genus Paraethmolaimus (Jensen, 1994) strongly correlated to the higher concentrations of Hg, Pb. Anoxic sediments were marked by organic...
Tipo: Text
Palavras-chave: Mangroves; Biodiversity; Meiofauna; Nematode; Anthropogenic pressures; Natural contamination; South America.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00684/79587/82274.pdf

Imaging proto-oceanic crust off the Brazilian Continental Margin
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Klingelhoefer, Frauke; Evain, Mikael; Afilhado, A.; Rigoti, Caesar; Loureiro, Afonso; Alves, D.; Lepretre, Angelique; Moulin, Maryline; Schnurle, Philippe; Benabdellouahed, Massinissa; Baltzer, Agnes; Rabineau, Marina; Feld, Aurelie; Viana, A.; Aslanian, Daniel.
During the Sanba (Santos basin seismic transect) experiment in 2010–2011, a 380-km-long combined wide-angle and reflection seismic profile has been acquired using 30 ocean-bottom seismometers, a 4.5 km seismic streamer and a 8900 in.3 airgun array. The Sanba 3 profile crosses the southern flank of the Sao Paulo Plateau, the Sao Paulo Ridge and the easternmost Santos Basin in an east–west direction. Its eastern end is located on undisturbed oceanic crust. Tomographic and forward modelling of the wide-angle seismic data reveals that the sedimentary thickness is variable with only 1–2 km on top of the ridge and thickening to 4–5 km in the basin. Crustal thickness at the ridge is about 18 km and the relative layer thickness and velocity gradients indicate a...
Tipo: Text
Palavras-chave: Controlled source seismology; Seismic tomography; Mid-ocean ridge processes; Continental margins: divergent; Continental tectonics: extensional; Crustal structure; South America.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00242/35296/33826.pdf

Comment on 'A new scheme for the opening of the South Atlantic Ocean and the dissection of an Aptian salt basin' by Trond H. Torsvik, Sonia Rousse, Cinthia Labails and Mark A. Smethurst
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Aslanian, Daniel; Moulin, Maryline.
P&gt;Torsvik et al. recently presented a revised model for the opening of the South Atlantic Ocean. According to these authors, this new plate tectonic model is internally consistent and consistent with globally balanced plate motion solutions and takes into account realistic intraplate deformation. However, this model shows a number of kinematic and geological problems that we underline here, together with some comparisons with the new kinematic model recently proposed by Moulin et al.
Tipo: Text
Palavras-chave: Plate motions; Continental margins: divergent; Africa; Atlantic Ocean; South America.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00014/12504/9878.pdf

Ocean circulation and climate variability in the western South Atlantic and eastern South America during the last deglaciation
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Chiessi, Cristiano Mazur.
The growing impact of human activities on the climate system adds a new dimension of complexity and urgency to climate change research. Human activities may have the potential to push key components of the climate system past critical states into qualitatively different modes of operation, i.e. to exceed a tipping point. This possibility requires additional efforts from the many branches of climate change research in order to improve the accuracy of climate change projections. The examination of past climate records has proven to be a very useful area of climate change research. This thesis tackles two elements of the climate system whose tipping points are currently considered very critical: the Atlantic meridional overturning circulation and South...
Tipo: Text
Palavras-chave: South Atlantic; South America; Last deglaciation; Stable isotopes; Trace elements; Atlantic meridional overturning circulation; South American summer monsoon.
Ano: 2008
URL: https://archimer.ifremer.fr/doc/00495/60660/64157.pdf

First record of Ptychoglossus brevifrontalis Boulenger, 1912 (Squamata, Alopoglossidae) in French Guiana
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Dewynter, Maël; Godé, Laurent; Girardot, Thierry; Courtois, Elodie Alice.
One specimen of Ptychoglossus brevifrontalis Boulenger, 1912 was found during a field survey in the core area of the Amazonian National Park of French Guiana in the southern part of the country. Despite intensive herpetological surveys in French Guiana during the last three decades, this is the first record of the species for this country. This new locality extends the distribution of the species and draws attention to the need for more study of litter-dwelling lizards in French Guiana.
Tipo: Text
Palavras-chave: Guiana Shield; Herpetofauna; Lizards; Neotropical region; Parc Amazonien de Guyane; South America.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00607/71942/70640.pdf

New records of Monodelphis kunsi (Didelphimorphia, Didelphidae) from Brazil
Provedor de dados: Mastozoología Neotropical
Autores: Hannibal,Wellington; Figueiredo,Valquiria V; Filho,Paulo Landgref; Godoi,Maurício N.
We review the known distribution of Monodelphis kunsi from South America and reported nine new localities of occurrence in Mato Grosso do Sul state, southwestern Brazil. These new records fill the gap on geographic distribution of M. kunsi in southwestern Brazil. The species presents wide geographic range including distinct habitats. The lack of studies in southwestern Brazil and the non-utilization of pitfall traps can be the main factors responsible for the lack of knowledge on distribution of small mammal species to this region.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Biogeography; Ecoregions; Pitfall traps; Pygmy short-tailed opossum; South America.
Ano: 2012
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832012000200012

The extinction of some south american camelids: the case of Lama (Vicugna) Gracilis
Provedor de dados: Mastozoología Neotropical
Autores: Cajal,Jorge; Tonni,Eduardo P.; Tartarini,Viviana.
Lama (Vicugna) gracilis (Gervais and Ameghino, 1881) is a Camelidae that inhabited the low plains of Argentina and Uruguay during the Pleistocene and early Holocene. Considering that Lama gracilis was a vicariant of L. vicugna in the low plains, sympatry cases between Lama guanicoe and Lama vicugna are analyzed to test the hypothesis that considers the competence for the same resource as the cause of extinction of Lama gracilis. It is concluded that the reduced populations of L. gracilis were forced to extinction especially by hunting pressure of paleoindian groups.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Camelidae; Extinction; Pleistocene; South America.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832010000100014

Three new species of the genus Adelophryne (Amphibia: Anura: Leptodactylidae) from northeastern Brazil, with remarks on the other species of the genus
Provedor de dados: Naturalis Digital Academic Repository
Autores: Hoogmoed, M.S.; Borges, D.M.; Cascon, P.
In the present paper three new species of the genus Adelophryne from the coastal Atlantic forest in Brazil are described. The species are separated from the two species formerly known from the Amazon forest by caatinga vegetation and a distance of at least 1600 km. A. pachydactylus from Bahia has a reduced number of phalanges in the fourth finger, and large subdigital pads under fingers and toes. A. baturitensis has distinct subarticular tubercles under the toes and a relatively large size. A. maranguapensis has large discs on fingers and toes and is boldly patterned. During fieldwork in Amapá two specimens of A. gutturosa were collected and based on them additional data are provided and some concepts from the original description are revised. Literature...
Tipo: Article / Letter to the editor
Palavras-chave: Adelophryne; South America; Brazil; Atlantic forest; New species; 42.82.
Ano: 1994
URL: http://www.repository.naturalis.nl/record/319391

Sphaeromatidae (Crustacea, Isopoda) of the Beagle Channel and description of Cymodopsis beageli n. sp
Provedor de dados: Naturalis Digital Academic Repository
Autores: Brandt, Angelina.
During an expedition with RV Victor Hensen (1994) and the RV Polarstern (1996) Isopoda Sphaeromatidae were collected in and off the eastern entrance of the Beagle Channel. The species found, Caecocassidias patagonica Kussakin, 1967, Cassidinopsis emarginata (Guérin-Méneville, 1843) and Moruloidea darwinii (Cunningham, 1871), were previously all poorly or insufficiently described; therefore a redescription is presented herein. Exosphaeroma gigas (Leach, 1818) was also collected frequently, but it was already redescribed earlier and thus only the localities are presented. Moreover, a new species, Cymodopsis beageli, n.sp., which is most closely allied to Cymodopsis sphyracephalata Hurley &amp; Janssen, 1977, is described from the Beagle Channel.
Tipo: Article / Letter to the editor
Palavras-chave: Crustacea; Isopoda; Taxonomy; Beagle Channel; South America; Southern Ocean; Subantarctic.
Ano: 1998
URL: http://www.repository.naturalis.nl/record/504937

Four new combinations in Chomelia and Stenostomum (Rubiaceae, Guettardeae) from Central America, the Guianas and the Amazon Basin
Provedor de dados: Naturalis Digital Academic Repository
Autores: Delprete, P.G.; Achille, F.; Mouly, A.
According to current generic delimitations, supported by wood anatomy, palynology, and recent molecular phylogenies, Antirhea, traditionally treated as a Pantropical genus, is instead restricted to the Paleotropics. At the same time, the Neotropical species traditionally positioned in Antirhea should be positioned in Stenostomum. Following these definitions, Stenostomum is a genus with most of the species present in the Caribbean Region, and two species present in the Guianas, namely S. acreanum and S. guianensis, distributed throughout the Amazon Basin. In addition, according to these new generic delimitations, two species previously positioned in Guettarda and Antirhea need to be transferred to Chomelia, as C. triflora and C. ulei.
Tipo: Article / Letter to the editor
Palavras-chave: Amazon Basin; Chomelia; Floristics; French Guiana; Guettarda; Guettardeae; Guyana; Rubiaceae; South America; Stenostomum; Taxonomy.
Ano: 2010
URL: http://www.repository.naturalis.nl/record/525264

On the female sex of some elusive South-American Gomphidae with the descriptions of three new genera and four new species (Odonata)
Provedor de dados: Naturalis Digital Academic Repository
Autores: Belle, J.
Females of some South-American Gomphidae are recorded. Anomalophlebia nitida gen. nov. et spec. nov. ( ♀ holotype: Venezuela, State of Bolivar, Los Pijiguasos), Praeviogomphus proprius gen. nov. et spec. nov. ( ♀ holotype: Brazil, State of Rio de Janeiro, Itatiaya), Brasiliogomphus uniseries gen. nov. et spec. nov. ( ♀ holotype: Brazil, State of São Paulo, Lins) and Idiogomphoides emmeli spec. nov. ( ♀ holotype: Brazil, State of Rondônia, Rio Pardo) are described and illustrated. A syntype female of Agriogomphus sylvicola Selys is designated as lectotype. The female of Diaphlebia nexans Calvert and Gomphoides perdita (Förster) are described for the first time while two females pertaining to unknown species of Progomphus and Aphylla are described under...
Tipo: Article / Letter to the editor
Palavras-chave: Gomphidae; New taxa; South America; 42.75.
Ano: 1995
URL: http://www.repository.naturalis.nl/record/319073

Taxonomic position and identity of Stenocephalum monticola (Vernonieae, Asteraceae)
Provedor de dados: Naturalis Digital Academic Repository
Autores: Dematteis, M.; Angulo, M.B.
The genus Stenocephalum (Vernonieae, Asteraceae) includes six South American species that have cylindrical heads, 4–11 florets by capitula, cymose inflorescences and type ‘C’ pollen. Until now, Stenocephalum monticola has been considered as a synonym of S. apiculatum. However, the analysis of the type material and additional specimens indicate that it is a quite different species, which differs in leaf size, pubescence and capitula arrangement. Stenocephalum monticola has leaves of 9–20 mm long, leaf blades villous at the base and capitula agglomerate at the stems tips, while S. apiculatum presents leaves of 30–60 mm long, leaf blades basally glabrous and heads mostly solitary, arranged in a pseudo-spiciform inflorescence. Consequently, in this paper S....
Tipo: Article / Letter to the editor
Palavras-chave: Vernonia; Compositae; South America; Brazil; Taxonomy.
Ano: 2008
URL: http://www.repository.naturalis.nl/record/524666

New species of Lessingianthus (Asteraceae, Vernonieae) from Brazil and Paraguay
Provedor de dados: Naturalis Digital Academic Repository
Autores: Dematteis, M.; Angulo, M.B.
Two new species of the genus Lessingianthus (Vernonieae, Asteraceae) from Brazil and Paraguay are described and illustrated. Lessingianthus cipoensis is characterized by the presence of solitary heads disposed in short branches and ovate to elliptical leaves. It has a certain resemblance to L. vestitus, which has more branched inflorescences, with long branches, and lanceolate to obovate-lanceolate leaves. Lessingianthus paraguariensis is closely related to L. asteriflorus and L. mollissimus, but it can be distinguished by the broadly elliptical leaves and the large size of the outer phyllaries.
Tipo: Article / Letter to the editor
Palavras-chave: Compositae; New species; South America; Taxonomy; Vernonia.
Ano: 2012
URL: http://www.repository.naturalis.nl/record/525043

Morphological comparison of Mesocyclops araucanus Campos et al., 1974, and M. longisetus Thiébaud, 1912, and first description of their males
Provedor de dados: Naturalis Digital Academic Repository
Autores: Pilati, Alberto; Menu-Marque, Silvina.
Originally described by Löffler in 1962 as a variety of Mesocyclops longisetus, M. araucanus was found to have autapomorphies of its own to deserve specific rank. For a long time the identification of these two species were mixed up. Here, M. araucanus female is redescribed and the male described for the first time. A comparison is made with M. longisetus, whose male is also described for the first time. Detailed comparison between these two species shows that the following traits on specimens of both sexes can be used to separate the species: length/width ratio of caudal rami, ratio of terminal caudal setae, and length/width ratio of last segment of endopod of leg 4. Additional diagnostic characters for each sex are given. The geographic distributions of...
Tipo: Article / Letter to the editor
Palavras-chave: Copepoda; Cyclopoida; Mesocyclops; South America; Morphology.
Ano: 2002
URL: http://www.repository.naturalis.nl/record/505083

The fry patterns in the South-American catfish genus Corydoras (Pisces, Siluriformes, Callichthyidae)
Provedor de dados: Naturalis Digital Academic Repository
Autores: Fuller, Ian.
The fry pattern of aquarium-bred species of the South-American catfish genus Corydoras, contribute to discriminate between species of the so-called ‘acutus’-group, showing a greyish adult colour pattern.
Tipo: Article / Letter to the editor
Palavras-chave: Callichthyidae; Corydoras; Development; Colour pattern; South America.
Ano: 1999
URL: http://www.repository.naturalis.nl/record/505319

On relict hydrobiid species in Brazilian Amazonia (Gastropoda, Prosobranchia, Hydrobiidae)
Provedor de dados: Naturalis Digital Academic Repository
Autores: Wesselingh, F.P.
Two extant hydrobiid species from the lower Tapajos river of Brazil are redescribed. Potamopyrgus amazonicus Haas, 1949, is assigned to the genus Dyris Conrad, 1871. At least eleven species from Miocene deposits of Western Amazonia are assigned to Dyris, a genus that was previously assumed to be extinct. The apertural features of Sioliella effusa Haas, 1949, are considered indicative of a close relationship to Miocene Amazonian taxa formaly assigned to Eubora Kadolsky, 1980. Sioliella ovata spec. nov., a Miocene species resembling S. effusa is described. The two Tapajos species can be regarded as relicts of a speciose, endemic, Miocene Western Amazonian molluscan fauna.
Tipo: Article / Letter to the editor
Palavras-chave: South America; Amazonia; Miocene; Recent; Hydrobiidae; Dyris; Sioliella; New species; 42.73; 38.22.
Ano: 2000
URL: http://www.repository.naturalis.nl/record/235203

A new species of the genus Homolobus Foerster from Ecuador (Hymenoptera: Braconidae: Homolobinae)
Provedor de dados: Naturalis Digital Academic Repository
Autores: Achterberg, C. van; Shaw, S.R.
A new high elevation altitude species of the genus Homolobus Foerster (Hymenoptera: Braconidae: Homolobinae), H. fuscinervis spec. nov. from Ecuador (Napo province, 2163 m elevation) is described and illustrated.
Tipo: Article / Letter to the editor
Palavras-chave: Hymenoptera; Braconidae; Homolobinae; Homolobus; Oulophus; Neotropical; South America; Ecuador; 42.75.
Ano: 2009
URL: http://www.repository.naturalis.nl/record/315877

Studies on the species of the South American lizard genus Arthrosaura Boulenger (Reptilia: Sauria: Teiidae), with the resurrection of two species
Provedor de dados: Naturalis Digital Academic Repository
Autores: Hoogmoed, M.S.; Avila-Pires, T.C.S.
Arthrosaura versteegii and Pantodactylus tyleri are resurrected from the synonymy of A. reticulata. Detailed descriptions of the three species are provided, a key to the species of the genus is presented, differences are pointed out and synonymy and distribution of the known species are given. Two of the species occur sympatrically in several areas, whereas in one area three species are sympatric. The distribution of A. kockii mainly is limited to the eastern part of the Guianas, but also encompasses eastern Pará; that of A. reticulata extends from the Amazonian lowlands of Ecuador to the mouth of the Amazon and also includes the Guianas, that of A. versteegii seems to be restricted to the Guianas, whereas A. tyleri is only known from a high altitude on...
Tipo: Article / Letter to the editor
Palavras-chave: Arthrosaura kockii; Arthrosaura reticulata; Arthrosaura tyleri; Arthrosaura versteegii; South America; Cis-Andean; Brazil; Guianas; Venezuela; Ecuador; Amazon basin; Distribution; Morphology; 42.82.
Ano: 1992
URL: http://www.repository.naturalis.nl/record/318225

Two new species of Coussarea and a new combination in Faramea (Rubiaceae, Coussareeae) from the Guianas
Provedor de dados: Naturalis Digital Academic Repository
Autores: Delprete, P.G.
During the preparation of the treatment of the family Rubiaceae for the Flora of the Guianas, two new species of Coussarea were discovered. One species, Coussarea longilaciniata, was collected in Guyana and is characterized by its long-lanceolate calyx lobes; the other, C. spicata, is from French Guiana and is unique in the genus by its spicate inflorescences. In addition, Faramea sessiliflora var. pedunculata is here elevated to the species level, and a new description of F. sessiliflora is also provided in view of the re-delimitation of this species.
Tipo: Article / Letter to the editor
Palavras-chave: Rubiaceae; Coussareeae; Coussarea; Faramea; Guianas; South America; Floristics; Taxonomy.
Ano: 2006
URL: http://www.repository.naturalis.nl/record/525621

Three new species of South American Moraceae
Provedor de dados: Naturalis Digital Academic Repository
Autores: Berg, C.C.; Homeier, J.
New South American species are described, one in each of the following genera: Ficus, Helicostylis and Naucleopsis.
Tipo: Article / Letter to the editor
Palavras-chave: Ficus; Helicostylis; Moraceae; Naucleopsis; New species; South America.
Ano: 2010
URL: http://www.repository.naturalis.nl/record/525108

A new species of Chomelia (Rubiaceae, Guettardeae) from the Brazilian Planalto
Provedor de dados: Naturalis Digital Academic Repository
Autores: 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

Olssoνella Scalatella (Guppy) living off northern South America (Mollusca: Neogastropoda: Cancellariidae)
Provedor de dados: Naturalis Digital Academic Repository
Autores: Verhecken, A.
Olssonella scalatella (Guppy, 1873), originally described from early Pliocene deposits in Jamaica, still occurs as a recent species off the northern coast of S. America. This opinion is based on shells collected off Surinam and French Guyana, fossil specimens from the type-locality, and data from the literature. O. smithii (Dall, 1888) is considered a closely related recent species, occurring more to the north; it differs from O. scalatella mainly in characters of the protoconch. Conchological characters of the two taxa are discussed and some general notes are given concerning the importance of protoconch characters.
Tipo: Article / Letter to the editor
Palavras-chave: Mollusca; Cancellariidae; Olssonella; South America; 42.73.
Ano: 1984
URL: http://www.repository.naturalis.nl/record/318165

New species of Ficus (Moraceae) from South America
Provedor de dados: Naturalis Digital Academic Repository
Autores: Berg, C.C.
Eleven new species and one new subspecies of Ficus from South America, mainly from the Andean region, are described and illustrated: F. cotopaxiensis, F. ecuadorensis, F. francoae, F. jacobii subsp. mantana, F. loxensis, F. maximoides, F. pastasana, F. quichuana, F. quistocochensis, F. rimacana, F. sumacoana, and F. valaria. Ficus malacocarpa Standl. is reduced to a subspecies of F. popenoei Standl.
Tipo: Article / Letter to the editor
Palavras-chave: Moraceae; Ficus; South America.
Ano: 2007
URL: http://www.repository.naturalis.nl/record/524515

Revision of Hydroides Gunnerus, 1768 (Polychaeta: Serpulidae) from the Western Atlantic region
Provedor de dados: Naturalis Digital Academic Repository
Autores: Rolando Bastida-Zavala, J.; Hove, Harry A. ten.
A taxonomic revision of the Hydroides species (Polychaeta: Serpulidae) from the Western Atlantic Region is presented. Twenty-six taxa are described, including a comparison between four species with ‘winged’ verticil spines: Hydroides alatalateralis, H. elegantulus, H. floridanus and H. spongicola, between two forms of the H. mongeslopezi complex, and between two forms of the H. brachyacanthus complex. Three widespread species are recorded: H. dianthus, H. diramphus and H. elegans. Five new forms are recorded, including one with 7-9 thoracic chaetigers. Three species are newly described: H. lambecki n. sp., H. similoides n. sp. and H. salazarvallejoi n. sp. Seven specific names are placed into synonymy: H. abbreviatus Krøyer [in] Mörch, H. benzoni Mörch, H....
Tipo: Article / Letter to the editor
Palavras-chave: Caribbean; Gulf of Mexico; Key; New species; Serpulinae; South America; Standard diagnosis.
Ano: 2002
URL: http://www.repository.naturalis.nl/record/504958

A revision of the South American species of Aphylla Selys, 1854 (Odonata: Gomphidae)
Provedor de dados: Naturalis Digital Academic Repository
Autores: Belle, J.
A revision is given of the 16 recognized South American species of the New World genus Aphylla Selys. Three new species are described and figured, viz. A. scapula (♂ holotype; Brazil, Territorio de Rondônia, Fazenda Rancho Grande), A. silvatica (♂ holotype: Ecuador, Provincia Napo, Limoncocha) and A. spinula (♂ holotype: Perú, Departamento de Cuzco, Río Urubamba). A. obscura (Kirby, 1899) and A. albinensis Belle, 1970, are considered junior synonyms of A. tenuis Selys, 1859, and A. brevipes Selys, 1854, respectively, while A. simulata Belle, 1964, is considered a synonym of A. dentata Selys, 1859. Separate identification keys to the males and the females of the South American species of Aphylla are provided.
Tipo: Article / Letter to the editor
Palavras-chave: Aphylla; Gomphidae; Revision; South America; 42.75.
Ano: 1992
URL: http://www.repository.naturalis.nl/record/318221

What Is Oligoclada Abbreviata (Rambur, 1842) ? (Odonata: Libellulidae)
Provedor de dados: Naturalis Digital Academic Repository
Autores: Geijskes, D.C.
A re-examination of the female holotype of Libellula (Oligoclada) abbreviata Rambur (1842) from Cayenne, deposited in the collection of de Selys Longchamps at the Brussels Museum, has brought to light that this is a female of Oligoclada raineyi Ris (1919), described after a single male from British Guiana. It could be compared with a pair captured in copulation of Oligoclada raineyi Ris (1919), from the interior of Surinam. The misidentified male of O. abbreviata discussed by Ris (1911), is now named O. risi spec. nov. A copulating pair of this insect was also found in Surinam and has been used for the redescription of that species.
Tipo: Article / Letter to the editor
Palavras-chave: Odonata; Libellulidae; Oligoclada; South America; 42.75.
Ano: 1984
URL: http://www.repository.naturalis.nl/record/319194

A new species of Sipapoantha (Gentianaceae: Helieae) from northern Brazil
Provedor de dados: Naturalis Digital Academic Repository
Autores: Lepis, K.B.; Maas, P.J.M.; Struwe, L.
A new species from Gentianaceae (tribe Helieae) is described from northern Brazil. Sipapoantha obtusisepala sp. nov. is distinct from the previously single member of the genus, Sipapoantha ostrina, by having a woody and branched habit, sessile and ovate leaves with an acute apex, and a smaller calyx with circular lobes. Sipapoantha obtusisepala is based on somewhat incomplete material and tentatively placed in Sipapoantha based on the presence of key generic characters such as coriaceous leaves with strongly revolute margins and blue corollas. It has only been recorded from one locality in the Brazilian-Guyana border area in the state of Roraima.
Tipo: Article / Letter to the editor
Palavras-chave: Floristics; Gentianaceae; Helieae; Morphology; Neotropics; New taxa; Sierra Baeta; South America.
Ano: 2011
URL: http://www.repository.naturalis.nl/record/525073

A new genus of Oniscidea from South America and a phylogenetic analysis of related genera (Crustacea: Isopoda: Philosciidae)
Provedor de dados: Naturalis Digital Academic Repository
Autores: 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

Curtia ayangannae, a new species of Gentianaceae from the Pakaraima Mountains, Guyana
Provedor de dados: Naturalis Digital Academic Repository
Autores: Cobb, L.; Jansen-Jacobs, M.J.; Ham, R.W.J.M. van der.
A new species of Curtia (Gentianaceae: Saccifolieae), C. ayangannae L. Cobb &amp; Jans.-Jac., from Mt Ayanganna, Guyana, is described and illustrated. The relationship between the genera Curtia, Tapeinostemon, and Saccifolium is discussed.
Tipo: Article / Letter to the editor
Palavras-chave: Gentianaceae; Curtia; Pakaraima Mountains; Guyana; South America; Taxonomy.
Ano: 2007
URL: http://www.repository.naturalis.nl/record/525398

Higher classification of the South-American Gomphidae (Odonata)
Provedor de dados: Naturalis Digital Academic Repository
Autores: Belle, J.
The adults and larvae of the South-American Gomphidae are classified. Keys to the subfamilies and tribes are constructed followed by tribal descriptions and descriptive notes. The existing classification is revised as follows: - Octogomphinae comb. nov.: Hemigomphini (Neogomphus, Praeviogomphus), Anomalophlebiini trib. nov. (Anomalophlebia); - Onychogomphinae: Onychogomphini (Erpetogomphus); - Epigomphinae: Archaeogomphini (Archaeogomphus), Agriogomphini trib. nov. (Agriogomphus, Brasiliogomphus, Ebegomphus), Cyanogomphini comb. nov. (Cyanogomphus, Tibiagomphus), Epigomphini (Epigomphus); - Ictinogomphinae comb. nov.: Ictinogomphini comb. nov. (Cacoides, Melanocacus); Zonophorinae: Zonophorini (Mitragomphus, Zonophora); - Gomphoidinae comb. nov.: Aphyllini...
Tipo: Article / Letter to the editor
Palavras-chave: Gomphidae; Classification; South America; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318464

New species of Lessingianthus (Asteraceae, Vernonieae) from Central Brazil
Provedor de dados: Naturalis Digital Academic Repository
Autores: Dematteis, M.
Two additional species of Lessingianthus (Vernonieae, Asteraceae) from the Brazilian highlands are described and illustrated. One of the new species, Lessingianthus barrosoanus, is characterized by the presence of solitary heads disposed in relatively long, flexuous branches. It has certain resemblance to L. ligulifolius (Mart. ex DC.) H. Rob., which has short, commonly erect branches of the inflorescence, and capitula geminate or disposed in groups. Lessingianthus minimus is closely related to L. reitzianus (Cabrera) H. Rob., but differs in having acuminate phyllaries, glabrous corolla lobes and lanceolate leaves, cuneate at the base.
Tipo: Article / Letter to the editor
Palavras-chave: Asteraceae; Vernonieae; South America; New species; Taxonomy.
Ano: 2006
URL: http://www.repository.naturalis.nl/record/525220

Moutabea arianae, a new species of Polygalaceae from French Guiana and adjacent Brazil
Provedor de dados: Naturalis Digital Academic Repository
Autores: Jansen-Jacobs, M.J.; Maas, P.J.M.
A new species of Moutabea (Polygalaceae), M. arianae, is described and illustrated.
Tipo: Article / Letter to the editor
Palavras-chave: Key Guianan species; Moutabea; Polygalaceae; South America; Taxonomy.
Ano: 2010
URL: http://www.repository.naturalis.nl/record/525229

First report of the citrus hindu mite, Schizotetranychus hindustanicus (Hirst) (Prostigmata: Tetranychidae), in Brazil
Provedor de dados: Neotropical Entomology
Autores: Navia,Denise; Marsaro Jr,Alberto L.
The citrus Hindu mite, Schizotetranychus hindustanicus (Hirst), is reported for the first time in Brazil and for the second time in South America. Mite specimens were collected from citrus in the municipality of Boa Vista, State of Roraima, northern Brazil. Symptoms associated with S.hindustanicus infestations on citrus are described. The importance of avoiding dissemination of this mite to the main citrus production areas in Brazil is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lemon; Spider mite; South America; Roraima; Plant protection.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000100021

New species of Brachygasterina Macquart (Diptera: Muscidae) from high altitudes of Colombia, Ecuador and Venezuela
Provedor de dados: Neotropical Entomology
Autores: Soares,Elaine D.G.; Carvalho,Claudio J.B. de.
The genus Brachygasterina Macquart (Muscidae), comprising seven species, is endemic in South America. Three new species are herein described from the highlands of Colombia, Ecuador and Venezuela. A key to the species of this genus is provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reinwardtiini; South America; Taxonomy.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000300010

Uma nova espécie de Xylocopa (Monoxylocopa) Hurd &amp;amp; Moure e novos registros de X. abbreviata Hurd &amp;amp; Moure (Hymenoptera: Apidae)
Provedor de dados: Neotropical Entomology
Autores: Zanella,Fernando C V; Silva,Maise.
Xylocopa (Monoxylocopa) macambirae sp. nov. is described from specimens collected mainly in areas at moderately high altitude of Northeastern brazil, inside the caatinga semi-arid domain. Additionally, a complementary diagnosis for the subgenus is presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caatinga domain; Neotropical region; South America; Taxonomy; Xylocopa macambirae sp. nov.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000100009

South American Haplothrips Species (Thysanoptera: Phlaeothripidae), with a new species of biological control interest to Australia against weedy Heliotropium amplexicaule (Boraginaceae)
Provedor de dados: Neotropical Entomology
Autores: Mound,Laurence A.; Zapater,Miguel C.
A new species, Haplothrips heliotropica, is described from Argentina causing severe damage to the leaves of Heliotropium amplexicaule (Boraginaceae), a South American plant that is now a serious weed of pastures in Australia. Observations are presented on the host specificity, seasonal population changes and overwintering of this thrips. The genus Haplothrips includes more than 230 species worldwide, mostly feeding in flowers. In contrast, adults and larvae of H. heliotropica feed exclusively on green tissues. This is only the third South American species of Haplothrips. Character states are given for distinguishing these three species, and also for Haplothrips heliotropii Priesner from Egypt and Yemen.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Haplothrips heliotropica; South America; Leaf-feeding; Thrips.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000300009

A new species of Aquanirmus Clay &amp;amp; Meinertzhagen (Phthiraptera: Philopteridae) parasitic on the Great Grebe, Podiceps major (Aves: Podicipedidae), in Argentina and Chile
Provedor de dados: Neotropical Entomology
Autores: Cicchino,Armando C; González-Acuña,Daniel A.
The new species Aquanirmus major Cicchino &amp;amp; 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

A new species of Uroleucon (Hemiptera: Aphididae) on Madia (Asteraceae) in Chile
Provedor de dados: Neotropical Entomology
Autores: Delfino,Miguel A.; Gonzáles,Wilfredo L.
Uroleucon is one of very few aphid genera that have species indigenous to South America. A new species of aphid from Chile is described and illustrated, Uroleucon eumadiae sp. nov., living on the two South American species of the genus Madia (Asteraceae): M. sativa Mol. and M. chilensis (Nutt.) Reiche. Morphological characters are discussed and the characters by which this aphid species may be distinguished from related ones are given. The long, hairy last rostral segment of the new species suggests strongly a feeding adaptation, and parallels that of a North American Madia-feeding species in the same genus which is not, however, closely related.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: South America; Aphid; Uroleucon eumadiae; Feeding adaptation.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000200010

Two new species of Brueelia (Phthiraptera: Philopteridas s. l.) parasitic on two species of Phrygilus (Aves: Emberizidae) from Chile
Provedor de dados: Neotropical Entomology
Autores: Cicchino,A.C.; González-Acuña,D.
Two new species of the genus Brueelia Kéler, 1936 are described of two species in the genus Phrygilus Cabanis, 1844 from Punitaqui, Coquimbo, IV Región, Chile: Phrygilus gayi (Gervais, 1834) and P. fruticeti (Kittlitz, 1833). Descriptions were made in a comparative form, adding comments on their relatives, as well as an account of all Brueelia species known to infest South American Emberizine finches.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Louse; South America; Taxonomy.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000300009

A new species of Brueelia Kéler (Phthiraptera: Philopteridae) parasitic on the common diuca-finch, Diuca diuca diuca (Aves: Emberizidae) in Chile
Provedor de dados: Neotropical Entomology
Autores: 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

The Neotropical whale catfishes (Siluriformes: Cetopsidae: Cetopsinae), a revisionary study
Provedor de dados: Neotropical Ichthyology
Autores: Vari,Richard P.; Ferraris Jr.,Carl J.; Pinna,Mário C. C. de.
The catfishes of the subfamily Cetopsinae of the Neotropical family Cetopsidae are revised. Four genera, Cetopsidium new genus, Cetopsis, Denticetopsis, and Paracetopsis Bleeker are recognized as valid. Bathycetopsis, Hemicetopsis, and Pseudocetopsis are considered synonyms of Cetopsis and Paracetopsis Eigenmann &amp;amp; Bean and Cetopsogiton synonyms of Paracetopsis. Thirty-seven species are recognized in the Cetopsinae. Cetopsidium includes six species: C. ferreirai, new species, rio Trombetas; C. minutum, Essequibo River; C. morenoi, central and western portions of río Orinoco; C. orientale, coastal rivers of Suriname and French Guiana, and tentatively rio Tocantins and rio Xingu; C. pemon, new species, río Caura, río Caroni, río Meta, and rio Branco;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paracetopsis; Cetopsis; Denticetopsis; Cetopsidium; New species; South America.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000200001

A new Centromochlus Kner, 1858 (Siluriformes: Auchenipteridae: Centromochlinae) from the transition between Amazon floodplain and Guiana shield, Brazil
Provedor de dados: Neotropical Ichthyology
Autores: 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

Discovery of endangered annual killifish Austrolebias cheradophilus (Aplocheiloidei: Rivulidae) in Brazil, with comments on habitat, population structure and conservation status
Provedor de dados: Neotropical Ichthyology
Autores: Lanés,Luis Esteban Krause; Gonçalves,Ândrio Cardozo; Volcan,Matheus Vieira.
Austrolebias genus comprises about 40 small annual killifishes endemic to South America and their highest diversity occurs in southern Brazil and Uruguay, especially in drainages of Patos-Mirim system. Austrolebiasspecies are severely threatened with extinction because their life cycle and restricted ranges. Low dispersal ability and the extensive loss and fragmentation of freshwater wetlands contribute to this threat. Accurate information on the geographic distribution and ecology of the species, vital to plan conservation and management strategies, are scarce. In order to provide basic knowledge for annual fish conservation this paper reports the presence of Austrolebias cheradophilus and present data about its population structure (CPUA, size, sex...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Annual fishes; Restricted range; South America; Temporary ponds; Threatened fauna.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000100117

Revision of the Neotropical trahiras of the Hoplias lacerdae species-group (Ostariophysi: Characiformes: Erythrinidae) with descriptions of two new species
Provedor de dados: Neotropical Ichthyology
Autores: Oyakawa,Osvaldo T.; Mattox,George M. T.
Hoplias lacerdae was originally described from the rio Ribeira de Iguape, Iporanga, São Paulo State. The Hoplias lacerdae group is defined as containing generally large trahiras with the medial margins of dentaries running parallel to each other and lacking teeth on the basihyal compared to the H. malabaricus group in which the medial margins of the dentaries converge towards the mandibular symphysis and which have teeth on the basihyal. A taxonomic revision of the group based on meristic and morphometric data identified five distinct species: H. lacerdae distributed in the rio Ribeira de Iguape and rio Uruguai; H. intermedius from the rio São Francisco, upper rio Paraná basin, and rio Doce; H. brasiliensis from rivers of the Atlantic Coastal drainage from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trairão; Freshwater fish; South America; Taxonomy; Distribution patterns.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000200001

Three new Pimelodus species (Siluriformes: Pimelodidae) from the rio Tocantins drainage, Brazil
Provedor de dados: Neotropical Ichthyology
Autores: Ribeiro,Frank R.V.; Lucena,Carlos A. S.; Lucinda,Paulo H. F.
Three new species of Siluriformes from the rio Tocantins drainage of Brazil are placed in the genus Pimelodus, P. stewarti, P. joannis, and P. halisodous. Pimelodus halisodous differs from the sympatric P. joannis and P. stewarti by the number of premaxillary tooth rows (13-16 vs. 5-9). Pimelodus joannis differs from P. stewarti by the presence of two dark blotches on the base of the caudal fin. The three new species differ from all other species of Pimelodus by the possession of a uniform gray coloration along flanks; the relatively short distance between the posterior nostril and the anterior orbital border; a short maxillary barbel, that only slightly surpasses the caudal-fin base.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Catfish; Taxonomy; South America; Neotropical Region.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000300019

New species of Leporinus (Characiformes: Anostomidae) from the highlands of the Guiana Shield in Venezuela
Provedor de dados: Neotropical Ichthyology
Autores: Birindelli,José L. O.; Britski,Heraldo A.; Provenzano,Francisco.
ABSTRACT A new species of Leporinus is described using morphological data and compared to all other species of the family. Specimens were illustrated using digital photograph, measured using digital calipers, and had teeth, scales, and fin rays counted under a stereomicroscope. The new species is distinguished from all other Anostomidae, except Anostomus anostomus, A. brevior, A. ternetzi, Hypomasticus despaxi, Leporinus arcus, and L. striatus, by having four dark longitudinal stripes on body. The new species is distinguished from aforementioned species by having terminal mouth with four teeth on the premaxilla, 12 series of scales around caudal peduncle, and 34 to 36 scales in the lateral line. The new species is remarkably similar to Leporinus arcus,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anostomoidea; Phylogeny; South America; Systematics; Taxonomy.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000200218

Ageneiosus uranophthalmus, a new species of auchenipterid catfish (Osteichthyes: Siluriformes) from river channels of the central Amazon basin, Brazil
Provedor de dados: Neotropical Ichthyology
Autores: Ribeiro,Frank Raynner V; Py-Daniel,Lúcia H. Rapp.
Ageneiosus uranophthalmus is described from river channels of the central Amazon basin, Brazil. The new species is widely distributed in the Amazon and is distinguished from its congeners by the V-shape snout and eye laterally placed and dorsally oriented, more visible in dorsal view than in ventral view. Ageneiosus uranophthalmus shows a range of variation on color pattern when compared with its congeners. This and other differences are described and discussed herein.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy; South America; Benthic fishes; Auchenipteridae.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000100012

Jupiaba citrina, a new species from rio Aripuanã, rio Madeira basin, Amazonas and Mato Grosso States, Brazil (Characiformes: Characidae)
Provedor de dados: Neotropical Ichthyology
Autores: Zanata,Angela M.; Ohara,Willian M.
A new species of Jupiaba Zanata is described from tributaries of the rio Aripuanã, rio Madeira basin, Amazonas and Mato Grosso States, Brazil. The new species can be diagnosed from its congeners (except J. abramoides, J. anteroides, and J. poranga) by having two vertically-elongated humeral blotches, the anterior usually with a darker median portion forming an horizontally-elongated trace pointed anteriorly, and a well defined dark longitudinal line extending from the second humeral blotch to the caudal peduncle. The new species differs from J. abramoides, J. anteroides, and J. poranga by having an elongated blotch over caudal peduncle that extends to the distal tip of the caudal-fin median rays. Also, it can be distinguished from most congeners by the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy; Small characid; Neotropical fish; South America.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400001

Glanidium botocudo, a new species from the rio Doce and rio Mucuri, Minas Gerais, Brazil (Siluriformes: Auchenipteridae) with comments on taxonomic position of Glanidium bockmanniSarmento-Soares &amp;amp; Buckup
Provedor de dados: Neotropical Ichthyology
Autores: Sarmento-Soares,Luisa Maria; Martins-Pinheiro,Ronaldo Fernando.
Glanidium botocudo, new species, is described from the tributaries to the upper rio Doce and Mucuri, eastern Minas Gerais State, Brazil. It represents the northernmost record of a centromochlin catfish from the coastal rivers of the Northeastern Atlantic Forest. Glanidium botocudo is readily distinguished from its congeners, except Glanidium albescens, by the whitish grey body coloration with evenly spaced small dark brown dots. The new species has a long sharpened ventral process on the urohyal, an uncommon condition among congeners, and the lowest vertebral count among the large-sized Glanidium, 36-37. It differs from Glanidium albescensby proportional measurements and higher number of ribs. Glanidium botocudo and Glanidium albescens are probably sister...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Centromochlinae; Centromochlus; Distribution; South America; Systematics.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200265

The fish fauna in the fish passage at the Ourinhos Dam, Paranapanema River
Provedor de dados: Neotropical Ichthyology
Autores: Arcifa,Marlene Sofia; Esguícero,André Luiz Henríques.
The composition and abundance of the fish assemblage were evaluated in the fish ladder of Ourinhos Dam, the newest dam (closed in 2005) in the cascade of dams constructed on the Paranapanema River. Samplings were carried out three times on a diel cycle, in three sampling periods, two in the warm season and one in the cold season of 2008 - 2009. The ladder was closed and emptied and the entire fish assemblage was sampled and identified. Most individuals were released alive downstream of the dam. The assemblage found in the ladder was compared with the fish fauna sampled in the reservoir and in downstream sites, in the same period. Twenty seven species and a total of 4682 individuals were caught in the ladder. Pimelodus maculatus was the only migratory...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish abundance; Fish fauna composition; Fish ladder; South America.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000400004

A new species of Pimelodus LaCépède, 1803 (Siluriformes: Pimelodidae) from the rio São Francisco drainage, Brazil
Provedor de dados: Neotropical Ichthyology
Autores: Ribeiro,Frank Raynner V.; Lucena,Carlos Alberto S. de.
Pimelodus pohli, new species, is described from the rio São Francisco drainage. It differs from congeners by the following characters in combination: adults with dark spots on anterodorsal region of body and young specimens (up to 100 mm SL) with three rows of dark spots laterally on body; comparatively long adipose fin, more than one third of the distance between posterior end of dorsal fin base and the vertical through posterior end of anal-fin base (21.8-26.2% SL); lips poorly developed; 20-25 gill rakers; and maxillary barbels slightly surpassing the caudal-fin base. A key to the species of Pimelodus of the rio São Francisco drainage is presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Catfish; Taxonomy; South America; Neotropical.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000400004

Systematics of the neotropical fish subfamily Glandulocaudinae (Teleostei: Characiformes: Characidae)
Provedor de dados: Neotropical Ichthyology
Autores: Menezes,Naércio A.; Weitzman,Stanley H.
The systematics of the Glandulocaudinae is reviewed in detail and justification for the recognition of the group as a subfamily is discussed. The subfamily Glandulocaudinae consists of three genera: Lophiobrycon with one species plesiomorphic in some anatomical features but some others exclusively derived relative to the species in the other genera; Glandulocauda with two species intermediate in phylogenetic derivation; and Mimagoniates with seven species (one new), all more phylogenetically derived concerning their pheromone producing caudal-fin organs and with other anatomical characters presumably more derived than in the species of the other genera. Glandulocauda melanogenys Eigenmann, 1911, is considered a junior synonym of Hyphessobrycon...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: South America; Lophiobrycon; Glandulocauda; Mimagoniates; Taxonomy; Biogeography.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000300002

A new species of the lowland Oligosarcus Günther species group (Teleostei: Ostariophysi: Characidae)
Provedor de dados: Neotropical Ichthyology
Autores: Menezes,Naércio Aquino; Ribeiro,Alexandre Cunha.
A new characid species is described from the rio Jacuí basin, a coastal drainage from southern Brazil. Itis morphologically most similar to its sympatric congeners Oligosarcus jenynsii and O. jacuiensis , but can be distinguished from both species in having the interorbital region wider and the pectoral fin shorter and additionally from O. jenynsii in having a smaller orbital diameter.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Freshwater fish; Neotropical; South America; Systematics; Taxonomy.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000300541

Systematic assessment of the Leporinus desmotes species complex, with a description of two new species
Provedor de dados: Neotropical Ichthyology
Autores: Burns,Michael D.; Chatfield,Marcus; Birindelli,José L. O.; Sidlauskas,Brian L.
ABSTRACT Members of the Leporinus desmotes species complex can be distinguished from other barred or banded congeners by the combination of nine distinct black bars across the head and trunk and long, pointed, laterally compressed and upward curving symphyseal dentary teeth. A taxonomic reassessment of this complex revealed two new species, one from the Orinoco and Negro rivers of Venezuela and Brazil, and the other from the Xingu and Tapajós rivers of Brazil. Both species are similar to L. desmotes and L. jatuncochi, but differ significantly in body shape morphology, coloration, and/or circumpeduncular scale counts. Genetic evidence also contributes to the recognition of both new species. This contribution also maps the geographic distribution of the four...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anostomidae; Characiformes; Morphology; South America; Taxonomy.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000200219

Revision of the Neotropical genus Triportheus Cope, 1872 (Characiformes: Characidae)
Provedor de dados: Neotropical Ichthyology
Autores: Malabarba,Maria Claudia S. L.
The genus Triportheus Cope, 1872 is revised and a total of 16 species (including 3 new species) are recognized from most of the major river drainages of South America. Triportheus magdalenae (Steindachner, 1878) is the sole species occurring west of the Andean Cordilleras. Triportheus paranensis (Günther, 1874) is considered a junior synonym of Triportheus nematurus (Kner, 1858) and a new Triportheus species is described for the río Paraguay basin. Chalcinus rotundatus iquitensis Nakashima, 1941 and Chalcinus elongatus iquitensis Nakashima, 1941 are placed into the synonymy of Triportheus albus Cope, 1872 and T. culter (Cope, 1872) respectively. The name Salmo clupeoides employed by Natterer (in Kner, 1860) is considered a nomen nudum. Neotypes are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Characid; Taxonomy; South America; Fishes.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000400001

Knodus shinahota (Characiformes: Characidae) a new species from the río Shinahota, río Chapare basin (Mamoré system), Bolivia
Provedor de dados: Neotropical Ichthyology
Autores: Ferreira,Katiane M.; Carvajal,Fernando M.
Knodus shinahota, new species, is described from río Shinahota, a tributary of the upper rio Mamoré basin, Província de Tiraque, Cochabamba State, Bolivia. The new species can be distinguished from all congeners except K. chapadae and K. geryi by having six rows of scales between the lateral line and the dorsal-fin origin (vs 4 or 5 rows of scales in the other species). Knodus shinahota differs from K. chapadae by possessing more rows of scales between the lateral line and the pelvic-fin origin (5 vs 3½ or 4, respectively) and more lateral line scales (38-41 vs 36-38, respectively). It differs from K. geryi by possessing more rows of scales between the lateral-line and the pelvic-fin origin (5 vs 4, respectively); fewer branched anal-fin rays (17-20 vs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: South America; Systematics; Neotropical; Amazon basin.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000100004

Baryancistrus demantoides and Hemiancistrus subviridis, two new uniquely colored species of catfishes from Venezuela (Siluriformes: Loricariidae)
Provedor de dados: Neotropical Ichthyology
Autores: Werneke,David C.; Sabaj,Mark H.; Lujan,Nathan K.; Armbruster,Jonathan W.
Baryancistrus demantoides and Hemiancistrus subviridis are two new species of loricariids from southern Venezuela with an olive ground coloration and white to cream-colored or golden-yellow spots. Baryancistrus demantoides is known only from the upper río Orinoco drainage while H. subviridis is also known from the río Casiquiare drainage. In addition to its coloration, B. demantoides can be distinguished from all other ancistrins by having the dorsal and adipose fins connected by an expanded posterior section of the dorsal-fin membrane, golden-yellow spots confined to the anterior portion of the body, and greater than 30 teeth per jaw ramus. Hemiancistrus subviridis can be separated from all other ancistrins by coloration, lacking a connection between the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ancistrini; Catfish; Hypostominae; Neotropics; South America.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000400011

Description of five new species of Acestrocephalus Eigenmann and redescription of A. sardina and A. boehlkei (Characiformes: Characidae)
Provedor de dados: Neotropical Ichthyology
Autores: Menezes,Naércio A.
Acestrocephalus maculosus, A. stigmatus, A. nigrifasciatus, A. acutus, and A. pallidus are described as new species and A. sardina and A. boehlkei are redescribed. Acestrocephalus ginesi is considered synonymous with A. sardina. Specimens of Acestrocephalus anomalus, a valid trans-Andean species, were not available for study. Acestrocephalus stigmatus, A. maculosus, and A. boehlkei have a dark humeral blotch not present in the remaining species and the species within the two species groups thus characterized are told apart by meristic and morphometric data as well as morphological structures associated with the pseudotympanum.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Freshwater fish; South America; Brazil; Taxonomy; Systematics.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000400002

Description of a new species of Tatia from rio Tocantins drainage, central Brazil, with notes on Tatia simplex Mees, 1974 (Siluriformes, Auchenipteridae)
Provedor de dados: Neotropical Ichthyology
Autores: Souza,Jordson de Souza e; Sarmento-Soares,Luisa M.; Canto,André L. Colares; Ribeiro,Frank Raynner V.
ABSTRACT Tatia comprises twenty-five valid species, distributed in the main inland watersheds of South America, including the Orinoco, Essequibo, and coastal rivers of Suriname, Amazon, upper rio Paraná and São Francisco basins. A new species is described from tributaries of upper rio Manuel Alves on uplands of Serra Geral do Tocantins plateau, Tocantins State, Brazil. It is promptly distinguished from all congeners, except Tatia britskii, due to absence of an adipose fin. It differs from T. britskii by the longer caudal peduncle length (24.1–30.5% SL, mean 25.3 vs. 20.0–22.7, mean 20.9); caudal peduncle depth (10.9–16.8 SL, mean 14.1 vs. 9.4–10.5, mean 9.8), and anterior cranial border with mesethmoid width equals its length (vs. width approximately three...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical; Ostariophysi; South America; Systematics; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000100213

Tectonic history and the biogeography of the freshwater fishes from the coastal drainages of eastern Brazil: an example of faunal evolution associated with a divergent continental margin
Provedor de dados: Neotropical Ichthyology
Autores: Ribeiro,Alexandre Cunha.
The eastern Brazilian coastal drainages are of great biogeographical significance, because of their highly endemic fish faunas. Phylogenetic patterns suggest a close biotic relationship between the rivers that flow into the Atlantic and those on the adjacent upland crystalline shield. However, little has been said on the dynamics of the geological processes causally related to the cladogenetic events between these areas. Distributional and phylogenetic patterns suggest a close association with the geological history of the passive continental margin of South America, from the Cretaceous to the present day. In this area megadome uplifts, rifting, vertical movements between rifted blocks and the erosive retreat of the South American eastern continental...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fishes; Distributional Patterns; Passive Margin; South America; Tectonics.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000200009

Guianacara dacrya, a new species from the rio Branco and Essequibo River drainages of the Guiana Shield (Perciformes: Cichlidae)
Provedor de dados: Neotropical Ichthyology
Autores: Arbour,Jessica H; López-Fernández,Hernán.
A new species of Guianacara is described from tributaries of the Essequibo River and the rio Branco in Guyana and northern Brazil. Guianacara dacrya, new species, can be diagnosed from all congeners by the possession of a unique infraorbital stripe and by the shape of the lateral margin of the lower pharyngeal jaw tooth plate. Guianacara dacrya can be further distinguished from G. geayi, G. owroewefi, G. sphenozona and G. stergiosi by the possession of a thin midlateral bar, from G. cuyunii by the possession of dusky branchiostegal membranes and from G. oelemariensis by the possession of two supraneurals. This species differs from most congeners by the presence of white spots on the spiny portion of the dorsal fin, the placement of the midlateral spot, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazil; Geophagini; Guyana; Neotropical region; South America.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000100006

A new species of Bryconadenos (Characiformes: Characidae) from the rio Curuá, rio Xingu drainage, Brazil
Provedor de dados: Neotropical Ichthyology
Autores: 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

A systematic revision of Tatia (Siluriformes: Auchenipteridae: Centromochlinae)
Provedor de dados: Neotropical Ichthyology
Autores: Sarmento-Soares,Luisa Maria; Martins-Pinheiro,Ronaldo Fernando.
The auchenipterid catfish genus Tatia is revised. Twelve species are recognized including three described as new. Tatia is diagnosed by the hyomandibula elongated anterodorsally, the anal-fin base of adult males reduced in length, and the caudal peduncle laterally compressed and deep with a middorsal keel. Tatia aulopygia occurs in the Madeira river drainage and is distinguished by the reduced cranial fontanel in adults and male modified anal fin with middle rays reduced in length. Tatia boemia, known from the upper Uruguay river drainage, is distinguished by its unique color pattern with dark chromatophores on the sides of body. Tatia brunnea from river basins in Suriname and French Guiana and the Negro river drainage, Amazon basin, is recognized by its...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: South America; Freshwater; Catfish; Taxonomy; Centromochlus.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000300022

Oligosarcus jacuiensis (Characiformes: Characidae), a new species from the Uruguay and Jacuí River basins, southern Brazil
Provedor de dados: Neotropical Ichthyology
Autores: Menezes,Naércio Aquino; Ribeiro,Alexandre Cunha.
The new species herein described, collected in the Jacuí and Uruguay River basins, Rio Grande do Sul, Brazil, can be distinguished from the already known species of the genus, but Oligosarcus jenynsii, O. perdido, O. acutirostris, O. solitarius and O. hepsetus, by the number of perforated lateral line scales. It shares with the first two species the absence of a premaxillary foramen, present in the last three species and differs from O. jenynsii by having a smaller orbital diameter and the tip of the pectoral fin failing to reach the pelvic-fin origin, and from O. perdido by the presence of more horizontal scale rows around the caudal peduncle.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Freshwater fish; South America; Neotropical; Systematics; Taxonomy.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000300010

Microglanis pataxo, a new catfish from southern Bahia coastal rivers, northeastern Brazil (Siluriformes: Pseudopimelodidae)
Provedor de dados: Neotropical Ichthyology
Autores: Sarmento-Soares,Luisa M.; Martins-Pinheiro,Ronaldo F.; Aranda,Arion T.; Chamon,Carine C.
A new pseudopimelodid catfish of the genus Microglanis, collected in small rivers at the lower and middle Peruípe, middle Jucuruçu and Cahy basins, in the southeastern coast of the Bahia state, is described. The new species has a comparatively high number of anal fin proximal radials, 12, shaped as thin tubes, the last one bearing a laminar extension; a pectoral fin spine with a bony point and with a smaller number of serrations on its posterior border; seven pleural ribs and a narrow head width. We provide information on the external morphology and also on some osteological features for the new species. A key to species is presented for the coastal drainages between Rio de Janeiro and Bahia states.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical; Systematics; Freshwater; South America.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000200003

A new species of Tetragonopterus (Characiformes: Characidae) from Central Amazon lowlands, Brazil
Provedor de dados: Neotropical Ichthyology
Autores: Urbanski,Bruna Q.; Melo,Bruno F.; Silva,Gabriel S. C.; Benine,Ricardo C.
ABSTRACT A new species of Tetragonopterus is described from lowland rivers of Central Amazon. It differs from congeners by having a vertically-oriented patch of dark pigmentation limited to posterior portion of the caudal peduncle and by bearing five thin and sharp teeth on dentary, along with other morphometric and meristic features. We hypothesize that the new taxon belongs to the herein named “Tetragonopterus anostomus clade” that includes T. anostomus, T. denticulatus, T. kuluene, and T. juruena.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Freshwater fishes; South America; Taxonomy; Tetragonopterinae.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000200205

Charax goeldii Fowler, 1913 a valid species of Galeocharax Fowler (Characiformes: Characidae)
Provedor de dados: Neotropical Ichthyology
Autores: Menezes,Naércio A.
Charax goeldii Fowler is resurrected from synonymy of Galeocharax gulo and redescribed. Its inclusion in Galeocharax is justified, and comments on the distribution of the species of this genus are made. The record of Galeocharax gulo in the rio São Francisco is considered a mistake.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Freshwater fishes; South America; Brazil; Rio Madeira; Taxonomy.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000100002

A taxonomic and morphological redescription of Potamotrygon falkneri Castex &amp;amp; Maciel, 1963 (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Provedor de dados: Neotropical Ichthyology
Autores: Silva,João Paulo C. B. da; Carvalho,Marcelo R. de.
A taxonomic revision of two nominal species of freshwater stingrays of the genus Potamotrygon previously considered valid, Potamotrygon falkneri Castex &amp;amp; Maciel, 1963 and Potamotrygon castexi Castello &amp;amp; Yagolkowski, 1969, was conducted based on a detailed analysis of external and internal morphology, including a morphometric and meristic study of specimens from the recorded range of both species. The taxonomic status of the nominal species P. menchacai Achenbach, 1967, treated by previous authors as a junior synonym of P. falkneri, was also evaluated. These nominal species, which constitute what has been called the falkneri-castexi complex, were found to represent examples of chromatic variation present in a single species, given that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical freshwater stingrays; Potamotrygon castexi; Skeletal anatomy; South America.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000100021

Otocinclus cocama, a new uniquely colored loricariid catfish from Peru (Teleostei: Siluriformes), with comments on the impact of taxonomic revisions to the discovery of new taxa
Provedor de dados: Neotropical Ichthyology
Autores: Reis,Roberto E.
A new, uniquely colored species of the loricariid catfish genus Otocinclus, O. cocama is described from a tributary to the lower río Ucayali in northern Peru. The new species is distinguished from other Otocinclus species by two putatively autapomorphic features, the distinct color pattern, consisting of vertically elongated blotches spanning from the dorsal midline to the ventral border of flanks, and by a complete lateral line. The phylogenetic relationships of the new species are investigated and it is apparently more closely related to a clade formed by O. huaorani, O. bororo, O. mariae, and O. mura. Comments on the impact of taxonomic revisions for the discovery and description of previously undetected biodiversity are also presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Systematics; Taxonomy; South America; Neotropical; Loricarioidei; Loricariidae; Phylogeny.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000300001

A history of the biogeography of Amazonian fishes
Provedor de dados: Neotropical Ichthyology
Autores: 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

A new species of the catfish genus Centromochlus (Siluriformes: Auchenipteridae: Centromochlinae) from the upper rio Paraná basin, Brazil
Provedor de dados: Neotropical Ichthyology
Autores: Sarmento-Soares,Luisa Maria; Birindelli,José Luís Olivan.
Centromochlus comprises twelve species, distributed in the main inland watersheds of South America, including the Orinoco, Essequibo, coastal rivers of Suriname, Amazon, upper Paraná and São Francisco basins. The new species is described from the upper rio Paraná based on material collected in 1965 during the construction of the UHE Ilha Solteira, São Paulo, Brazil. The new species is easily distinguished from all congeners due to absence of adipose fin, a condition otherwise restricted to Gelanoglanis nanonocticolus, among centromochlin catfishes. The new species comprises small catfishes (adults ranging from 35 to 39 mm SL), in which modified anal fin of males is devoid of denticulations or spines, and most posterior rays reduced in length. In addition,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ostariophysi; South America; Systematics; Taxonomy; Tatia simplex.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100077

Revision of the genus Pseudotocinclus (Siluriformes: Loricariidae: Hypoptopomatinae), with descriptions of two new species
Provedor de dados: Neotropical Ichthyology
Autores: Takako,Adriana Kazue; Oliveira,Claudio; Oyakawa,Osvaldo Takeshi.
The genus Pseudotocinclus is revised and two new species are described: Pseudotocinclus juquiae from the Ribeira de Iguape basin and Pseudotocinclus parahybae from the rio Paraíba do Sul basin. The presence of a small naked area on the snout tip distinguishes P. tietensis from P. parahybae and P. juquiae, which have the snout tip covered with small platelets. In addition, P. tietensis has four transverse dark-brown bands on the dorsum coalesced with the midlateral stripe instead of three, as in its congeners. Pseudotocinclus juquiae is distinguished from its congeners by having the orbital ring very prominent and conspicuous, a characteristic not found in P. tietensis or P. parahybae. These three species also differ from their congeners by meristic and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy; South America; Biogeography; Brazil; Coastal drainages.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000400007

Revision of the South American freshwater fish genus Laemolyta Cope, 1872 (Ostariophysi: Characiformes: Anostomidae)
Provedor de dados: Neotropical Ichthyology
Autores: Mautari,Kelly Cristina; Menezes,Naércio Aquino.
The anostomid genus Laemolyta Cope, 1872, is redefined.Various morphological, especially osteological characters in addition to the commonly utilized features of dentition proved useful for its characterization. A taxonomic revision of all species was made using meristics, morphometrics and color pattern. Five species are recognized: Laemolyta fernandezi Myers, 1950, from the río Orinoco (Venezuela) and the sub-basins Tocantins/Araguaia and Xingu, L. orinocensis (Steindachner, 1879), restricted to the río Orinoco, L. garmani (Borodin, 1931) and L. proxima (Garman, 1890), from the Amazon basin with the latter also occurring in the Essequibo River (Guiana), and L. taeniata (Kner, 1859), from the Amazon and Orinoco basins. Laemolyta garmani macra is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: South America; Synonymy; Lectotype designation; Neotropica.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000100002

Phenotypic plasticity in fish life-history traits in two neotropical reservoirs: Petit-Saut Reservoir in French Guiana and Brokopondo Reservoir in Suriname
Provedor de dados: Neotropical Ichthyology
Autores: Mérona,Bernard de; Mol,Jan; Vigouroux,Régis; Chaves,Paulo de Tarso.
Fish species are known for their large phenotypic plasticity in life-history traits in relation to environmental characteristics. Plasticity allows species to increase their fitness in a given environment. Here we examined the life-history response of fish species after an abrupt change in their environment caused by the damming of rivers. Two reservoirs of different age, both situated on the Guiana Shield, were investigated: the young Petit-Saut Reservoir in French Guiana (14 years) and the much older Brokopondo Reservoir in Suriname (44 years). Six life-history traits in 14 fish species were studied and compared to their value in the Sinnamary River prior to the completion of Petit-Saut Reservoir. The traits analyzed were maximum length, absolute and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: South America; Reproduction; Strategy; Tactic; Fecundity; Oocyte size.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400018

Hemiancistrus guahiborum, a new suckermouth armored catfish from Southern Venezuela (Siluriformes: Loricariidae)
Provedor de dados: Neotropical Ichthyology
Autores: Werneke,David C.; Armbruster,Jonathan W.; Lujan,Nathan K.; Taphorn,Donald C.
Hemiancistrus guahiborum, new species, is described from the Orinoco River drainage of Venezuela. Hemiancistrus guahiborum can be separated from all other Hemiancistrus and all Peckoltia except P. braueri and P. cavatica by having an orange edge to the dorsal and caudal fins. Hemiancistrus guahiborum can be separated from Peckoltia cavatica and P. braueri by having the dorsal fin with separated light spots or uniformly colored (vs. with dark spots forming bands) and the sides either solidly colored or with tan blotches (vs. with dark dorsal saddles).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ancistrini; Hypostominae; South America; Systematics.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000400012

A new species of whiptail armored catfish, genus Pseudohemiodon (Siluriformes: Loricariidae) from the Orinoco River basin, Llanos region of Colombia and Venezuela
Provedor de dados: Neotropical Ichthyology
Autores: Rojas-Molina,Yecid Andrey; Provenzano-Rizzi,Francisco; Ramírez-Gil,Hernando.
ABSTRACT A new species of whiptail armored catfish belonging to the genus Pseudohemiodon is described. The new species inhabits aquatic systems of the Orinoco River basin, mostly in the Llanos region of Colombia and Venezuela. Previously, it had identified as P. laticeps erroneously. The genus Pseudohemiodon includes seven known species inhabit Amazon and Paraná-Paraguay-Uruguay rivers basins. The new species is distinguished from congeners by the combination of the following characters: abdomen totally covered; area in front of gill opening without plates, ventrally; dorsal body color pattern without transversal dark bands, mostly in the caudal peduncle; head with straight sides; head and caudal peduncle narrower.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diversity; Freshwater fishes; South America; Systematic; Taxonomy.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000200213

A new species and a key for the Brazilian species of the genus Heterelmis Sharp, 1882 (Coleoptera: Elmidae, Elminae)
Provedor de dados: Papéis Avulsos de Zoologia
Autores: 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

Lectotype designation and redescription of the Gymnophthalmid lizard Riama columbiana (Andersson, 1914) with notes on the type Locality
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Sanchez-Pacheco,Santiago J.
The poorly known Riama columbiana, Andean gymnophthalmid lizard from Colombia, is redescribed on the basis of syntypes and additional material. A lectotype is designated, its likely provenience is discussed, and its distribution and natural history are given.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Andes; Colombia; Gymnophthalmidae; South America; Squamata; Taxonomy.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492010000200001

A new species of Leptometopa Becker, 1903 (Diptera, Milichiidae) and an identification key for the neotropical species of the genus
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Mello,Ramon Luciano de; Rodrigues,Paula Fernanda Motta; Lamas,Carlos José Einicker.
The Milichiidae family includes species of small acalyptratae flies distributed into 19 genera, over all biogeographic regions. The genus Leptometopa Becker, 1903, positioned among the Madizinae, is distributed worldwide. The genus is composed of 19 species, of which three are recorded for the Neotropical region: L. halteralis (Coquillett, 1900), L. latipes (Meigen, 1830) and L. niveipennis (Strobl, 1898). Studying material collected in a cave of Amazonas State, Brazil, the authors found a new species of Leptometopa which is described and illustrated herein. The new species L. veracildae n. sp. represents the first record of the genus in South America. An identification key for all Neotropical species is also presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Madizinae; Microtomentum; Cave; Amazon; South America.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492007002700001

Rediscovery of the holotype of Characidium sanctjohanni Dahl 1960 (Characiformes: Crenuchidae) from the Colombian Pacific slope
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Agudelo-Zamora,Henry D.; Ortega-Lara,Armando; Taphorn B.,Donald C.
We report the rediscovery of the holotype of Characidium sanctjohanni Dahl, previously considered as lost in the ICN collections. We present counts, measurements and photographs, also offering a comparison between the holotype and the original description.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: San Juan River; ICZN; South America; Fish.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492014001500001

Brachionus rotundiformis Tschugunoff, 1921 from the Brachionus plicatilis species complex (Rotifera: Monogononta): A new record from Galápagos Archipelago, Ecuador
Provedor de dados: Papéis Avulsos de Zoologia
Autores: López,Carlos; Steinitz-Kannan,Miriam; Stamou,Georgia; Michaloudi,Evangelia; Papakostas,Spiros; Fontaneto,Diego; Segers,Hendrik.
Abstract The presence of the rotifer species Brachionus rotundiformis from the B. plicatilis species complex in Lake Arcturo, a saline lake in the Genovesa Island of the Galápagos Islands, is here reported. This is the first record of the species for the rotifer fauna of Ecuador as well as of the species complex to the Galápagos Islands. This finding is consistent with the idea of high dispersion capacity, and of cosmopolitan distribution of this species complex. Because Genovesa Island is uninhabited, passive transport by wind currents and zoochory by migrant birds seem to emerge as the most plausible factors in this process of colonization. Integrative studies on the morphological variations, genetic, molecular, and ecological aspects are still required...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachionidae; Geographical distribution; Neotropics; Rotifers; South America.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492019000100221

New species and synonymies in Hexoplonini Martins, 2006 (Coleoptera, Cerambycidae), with notes and new records on Cerambycinae Latreille, 1802
Provedor de dados: Papéis Avulsos de Zoologia
Autores: 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 &amp; 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

A new species, new synonymy, and notes on Paravelia Breddin (Hemiptera: Heteroptera: Veliidae)
Provedor de dados: Papéis Avulsos de Zoologia
Autores: 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

Immatures of Phoebemima ensifera Tippmann, 1960 (Cerambycidae, Lamiinae, Hemilophini)
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Casari,Sônia A.; Martins,Ubirajara R.
The larva and pupa of Phoebemima ensifera Tippmann, 1960, collected in Samanea tubulosa (Benth.) and Inga sp. (Mimosaceae) are described and illustrated. This is the first species of Hemilophini with described immatures.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bolivia; Coleoptera; Pacay del Rio; Penoco; South America.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492013002100001

A new species of Neotropical freshwater stingray of the genus Potamotrygon Garman, 1877 from the Río Madrede Díos, Peru (Chondrichthyes: Potamotrygonidae)
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Silva,João Paulo C.B. da; Carvalho,Marcelo R. de.
Potamotrygon tatianae sp. nov., is described from Río Madre de Díos, Peru, upper Rio Madeira basin. The new species is distinguished from all congeners by a unique combination of characters, including its dorsal color pattern formed by a relatively slender, highly convoluted, beige to dark brown vermicular pattern, a single row of dorsal tail spines, and a relatively longer tail posterior to caudal stings. Potamotrygon tatianae sp. nov., occurs sympatrically with other species of Potamotrygon (P. falkneri, P. orbignyi and P. motoro). From the similar species P. falkneri, P. tatianae sp. nov., is further distinguished by the absence of circular, reniform, and oval spots, by its proportionally much longer tail, by having dorsal tail spines in one irregular...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Potamotrygon tatianae sp. nov.; Potamotrygon falkneri; Taxonomy; Morphology; Cryptic species; Río Madeira; South America.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492011000800001

MORPHOLOGICAL VARIATION AND TAXONOMY OF LEPIDOCOLAPTES ANGUSTIROSTRIS (VIEILLOT, 1818) (PASSERIFORMES: DENDROCOLAPTIDAE)
Provedor de dados: Papéis Avulsos de Zoologia
Autores: BOLÍVAR-LEGUIZAMÓN,SERGIO; SILVEIRA,LUÍS FÁBIO.
Lepidocolaptes angustirostris is a South American woodcreeper that inhabits predominantly open lowlands such as the Cerrado, Chaco and Caatinga. Eight subspecies are currently recognized based on plumage patterns and geographical distribution. However, a more detailed morphological analysis and taxonomic revision have not been done in this species. The objective of this study was to conduct a taxonomic revision of L. angustirostris using morphometrical and plumage character, and a Generalized Linear Models analyzes (GLM) were elaborated to identify environmental variables that could account for this variation. We found a high level of intergradation among all named populations. The principal component analyzes show certain levels of morphological...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy; Lepidocolaptes angustirostris; Geographical variation; South America; Ecogeographic rules.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492015002100281

A new species of Malthonea Thomson, 1864 (Coleoptera, Cerambycidae, Lamiinae) from Ecuador
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Santos-Silva,Antonio; Galileo,Maria Helena M.; McClarin,Jim.
Abstract Malthonea keili, a new species from Ecuador, is described and illustrated. A key to species of Malthonea is provided. Photographs of the types of Malthonea minima, Prymnopteryx glaucina, Malthonea ruficornis, and Ptericoptus guttatus are provided as an aid to understanding the key (photographs of the types of the last three are provided for the first time).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Desmiphorini; Key; New species; South America; Taxonomy.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492018000100213

Larva of Atractocerus Brasiliensis (Lepeletier &amp;amp; Audinet-Serville, 1825) (Lymexylidae, Atractocerinae)
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Casari,Sônia A.; Teixeira,Édson Possidônio.
The larva of Atractocerus brasiliensis (Lepeletier &amp;amp; Audinet-Serville, 1825), collected for the first time in Pinus oocarpa Schiede ex Schltdl. (Pinaceae) is described and illustrated. Until now, for Lymexylidae, only the larva of Melittomma sp. (Melittomminae) was known from the neotropical region (Brazil). Biological notes, a comparison with the description of A. brevicornis, the type-species of the genus (recorded from Africa and Madagascar), and history of the known lymexylid larvae are also included.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coleoptera; Fungus; Immature; Neotropical region; South America.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492011001200001

Morphological analysis of Mecosarthron Buquet and Xixuthrus Thomson and Reevaluation of Generic Assignment of Xixuthrus domingoensis Fisher (Coleoptera, Cerambycidae, Prioninae)
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Santos-Silva,Antonio; Lingafelter,Steven W.
The characters defining Mecosarthron Buquet, 1840 and Xixuthrus Thomson 1864 are discussed, along with a historical review of the literature that described and classified these taxa. Through morphological examination of these genera and most of the included species, we addressed the systematic placement of Xixuthrus domingoensis Fisher, 1932 that was placed in Mecosarthron by Ivie (1985). We restore its placement in the genus Xixuthrus. The first description of the female of X. domingoensis is provided, along with comparative redescriptions of Mecosarthron gounellei (Lameere, 1903), and M. buphagus Buquet, 1840. We include a key to the species currently in Mecosarthron.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Systematics; Hispaniola; South America; Longhorned beetles; Sexual dimorphism; Morphology.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492012002700001

New records of Helicina schereri (Gastropoda: Helicinidae) from the states of Bahia, Minas Gerais, and Mato Grosso do Sul, Brazil
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Silva,Fernanda dos Santos; Cavallari,Daniel Caracanhas; Simone,Luiz Ricardo Lopes de.
Abstract New records for Helicina schereri Baker, 1913, are reported. It was a species previously restricted to the states of Ceará, Rio Grande do Norte, Paraíba, Alagoas and Tocantins in Northeastern Brazil, and State of Santa Catarina, much further south. The new occurrences reported herein fill distribution gaps and also significantly expand the range of the species ca. 970 km westwards. The new records are from the following locations: Bahia State (Ituaçu and Itaquara municipalities) in Northeast Brazil; Mato Grosso do Sul State (Bonito Municipality) in the Midwest; and Minas Gerais (Lagoa Santa municipality) in the Southeast.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Land snails; Neritimopha; Range expansion; South America.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492019000100203

Descriptions, notes and new records in south american Cerambycidae (Coleoptera)
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Santos-Silva,Antonio; Nascimento,Francisco Eriberto de Lima; Drumont,Alain; Kozlov,Anton Olegovich.
ABSTRACT Three new species and one new genus are described: Psyrassa lisitskyi sp. nov., from Peru (Elaphidiini); Ophtalmibidion antonkozlovi sp. nov., from Colombia (Neoibidionini); and Nappella gen. nov., is proposed to N. antonkozlovi sp. nov., from Peru (Calliini). Epectasis mexicana Breuning, 1954 is redescribed, and figured for the first time, and recorded for Colombia. Psyrassa lisitskyi is included in a modified couplet from a previous key. A key to species of Ophtalmibidion and genera of Calliini are provided. Chorenta biramiguelus is recorded for Peru.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Key; Longhorned beetle; South America; Taxonomy.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492019000100215

Molecular phylogeny of advanced snakes (Serpentes, Caenophidia) with an emphasis on South American Xenodontines: a revised classification and descriptions of new taxa
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Zaher,Hussam; Grazziotin,Felipe Gobbi; Cadle,John E.; Murphy,Robert W.; Moura-Leite,Julio Cesar de; Bonatto,Sandro L.
We present a molecular phylogenetic analysis of caenophidian (advanced) snakes using sequences from two mitochondrial genes (12S and 16S rRNA) and one nuclear (c-mos) gene (1681 total base pairs), and with 131 terminal taxa sampled from throughout all major caenophidian lineages but focussing on Neotropical xenodontines. Direct optimization parsimony analysis resulted in a well-resolved phylogenetic tree, which corroborates some clades identified in previous analyses and suggests new hypotheses for the composition and relationships of others. The major salient points of our analysis are: (1) placement of Acrochordus, Xenodermatids, and Pareatids as successive outgroups to all remaining caenophidians (including viperids, elapids, atractaspidids, and all...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Serpentes; Colubridae; Caenophidia; Phylogeny; Classification; Systematics; Xenodontinae; Dipsadinae; New genus; Elapoidea; Colubroidea; South America; West Indies.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492009001100001

Description of the female of Poeciloxestia plagiata (Waterhouse, 1880), and of the male of Iuati spinithorax Martins &amp;amp; Galileo, 2010 (Coleoptera, Cerambycidae)
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Nascimento,Francisco Eriberto de Lima; Santos-Silva,Antonio; Hernández,Juan José Ramírez.
Abstract Based on material recently collected in Peru (Loreto department) the female of Poeciloxestia plagiata (Waterhouse, 1880), and the male of Iuati spinithorax Martins &amp; Galileo, 2010 are described and figured for the first time. Both species are recorded for the first time from Peru.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerambycinae; Cerambycini; Sphallotrichina; South America; Taxonomy.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492018000100253

An unusual, dwarf new species of Neotropical freshwater stingray, Plesiotrygon nana sp. nov., from the upper and mid Amazon basin: the second species of Plesiotrygon (Chondrichthyes: Potamotrygonidae)
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Carvalho,Marcelo R. de; Ragno,Maíra P.
A new species of the relatively poorly known Neotropical freshwater stingray genus Plesiotrygon Rosa, Castello &amp;amp; Thorson, 1987 is described from the main channel and smaller tributaries (Ríos Itaya and Pachitea) of the upper Amazon basin in Peru. The first specimen to be collected, however, was from much farther east in Rio Solimões in 1996, just down-river from Rio Purus (specimen unavailable for this study). Plesiotrygon nana sp. nov., is a very distinctive and unusually small species of freshwater stingray (Potamotrygonidae), described here mostly from three specimens representing different size classes and stages of sexual maturity. Plesiotrygon nana sp. nov., is distinguished from its only congener, P. iwamae Rosa, Castello &amp;amp; Thorson,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plesiotrygon iwamae; Taxonomy; Morphology; Myliobatiformes; Rio Solimões; Río Ucayali; South America.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492011000700001

Benefits from ecological study methods to taxonomy of enchytraeids in southern Mata Atlântica
Provedor de dados: Pesquisa Agropecuária Brasileira
Autores: Schmelz,Rüdiger Maria; Peña,Rut Maria Collado de la; Römbke,Jörg.
The objective of this work was to determine how taxonomy benefited from the ecological quantitative and site-based sampling methods in enchytraeids studies. Enchytraeids (small relatives of earthworms) were sampled in different phases of rain forest regeneration in the southern Mata Atlântica in Paraná, Brazil. The research combined ecological and taxonomic work, because enchytraeids are poorly studied and difficult to identify, and many new species were expected. The provision of large numbers of specimens enabled the test of species diagnoses by investigating the ranges of character variations in a larger series of specimens. Simplified species diagnoses adapted to the local conditions that allowed the identification of all specimens, juveniles included,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clitellata; Enchytraeidae; Oligochaeta; South America; Species identification.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800009

Occurrence of Aceria tosichella in Brazil
Provedor de dados: Pesquisa Agropecuária Brasileira
Autores: Pereira,Paulo Roberto Valle da Silva; Navia,Denise; Salvadori,José Roberto; Lau,Douglas.
The objective of this work was to evaluate the occurrence of Aceria tosichella Keifer (Prostigmata: Eriophyidae), the wheat curl mite, in Rio Grande do Sul, Brazil. Samples to detect A. tosichella specimens were collected in wheat, corn, oat crops and potential host grasses in 46 localities, in October 2006, August and October 2007. Samples of wheat were also collected in experimental greenhouses at Embrapa Trigo, Passo Fundo, RS, Brazil. A. tosichella specimens were found in wheat samples from Passo Fundo, Palmeira das Missões, São Luís Gonzaga, and Santo Antônio das Missões, RS, Brazil. Symptoms due to A. tosichella infestations were observed only in greenhouse conditions. This is the first report of A. tosichella in Brazil and the second in South America.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eriophyoidea; South America; Acari; Cereal; Quarantine; Virus.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000500015

Climate change impacts on Latin American farmland values: the role of farm type
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Seo,   S. Niggol; Mendelsohn,   Robert.
This paper examines climate change impacts on South American agriculture using a set of Ricardian regressions estimated across different samples of farms in South America. Regressions are run for the whole sample and for subsamples of crop-only, mixed, and livestock-only farms. The results indicate that climate sensitivity varies a great deal across each type of farm.  The analysis also reveals that the impacts will vary substantially across South America.  The hot and wet Amazon and Equatorial regions are likely to lose the most from warming scenarios whereas the more temperate high elevation and southern regions of South America will likely gain.
Tipo: Journal Article
Palavras-chave: Climate change; Agriculture; South America; Environmental Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/53872

THE RISE AND DECLINE OF RENT-SEEKING ACTIVITY IN THE BRAZILIAN COFFEE SECTOR: LESSONS FROM THE IMPOSITION AND REMOVAL OF COFFEE EXPORT QUOTAS
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Jarvis,   Lovell S.
Brazil, the world’s largest coffee exporter, encouraged efforts in the 1960s to form the International Coffee Agreement (ICA), which restricted total coffee exports via country export quotas. The quotas led to significant domestic quota rents in producing countries. This paper analyzes the effects of rent seeking in Brazil. The Brazilian Institute of Coffee (IBC), which was responsible for coffee policy, was the focus of rent seeking. The paper models the policy instruments used by the IBC, shows how rent seeking affected policy, industry efficiency and the distribution of rents, explains the causes and effects of IBC reforms in the late 1980s, and draws lessons from the experience.
Tipo: Working or Discussion Paper
Palavras-chave: South America; Brazil; International Coffee Agreement; Rent seeking; Export tax rebates; International Relations/Trade.
Ano: 2004
URL: http://purl.umn.edu/11952

Economic Analysis of Incentives for Foreign Direct Investment in Beef Systems in Argentina and Uruguay
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Thor,   Eric, III; Bailey,   DeeVon; Silvac,   Alejandro R.; Vickner,   Steven S.
The European Union's (EU) ban of hormone-treated beef products in 1989 has virtually eliminated beef exports to the EU from countries where cattle are routinely implanted with growth hormones. This study examined whether or not foreign direct investment in beef systems in Argentina and Uruguay would provide a profitable method for investors who want to export beef to the EU. The results indicate that while investment in these systems is potentially profitable, government interventions designed to keep domestic beef prices low inject considerable risk into the investment decision.
Tipo: Journal Article
Palavras-chave: Investment in beef systems; South America; Risk; Cointegration; International Relations/Trade; Livestock Production/Industries.
Ano: 2007
URL: http://purl.umn.edu/8167

SPATIAL PATTERNS OF CROP YIELDS IN LATIN AMERICA AND THE CARIBBEAN
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Wood,   Stanley; You,   Liangzhi; Zhang,   Xiaobo.
From a theoretical perspective crop yields should tend to converge over time and space as: growth in yield potential exhibits diminishing returns; an increasing share of farmers shift to using high yielding varieties (HYVs); barriers to the free flow of knowledge and information are removed; and significant investments continue to be made in supporting institutions whose mandates include facilitating and accelerating the cross-border flow of improved agricultural technologies. Using a new, sub-national crop yield database for Latin America and the Caribbean (LAC) we examine whether convergence is indeed occurring, and discover it is not. On the contrary, there is evidence of divergence. We test three hypotheses that might help account for this finding:...
Tipo: Working or Discussion Paper
Palavras-chave: Crop yields; Maize; Rice; Soybeans; Latin America; Caribbean; South America; Crop Production/Industries.
Ano: 2004
URL: http://purl.umn.edu/60322

A contribution to the phytogeography of Brazilian campos: an analysis based on Poaceae
Provedor de dados: Revista Brasileira de Botânica
Autores: 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

Epidemiology of Avian Infectious Laryngotracheitis with Special Focus to South America: an update
Provedor de dados: Revista Brasileira de Ciência Avícola
Autores: Parra,SHS; Nuñez,LFN; Ferreira,AJP.
ABSTRACT Avian Infectious laryngotracheitis (AILT) is a respiratory tract disease of great importance because it causes significant economic losses in the poultry industry around the world. It is caused by a Gallid herpesvirus type 1, a member of the genus Iltovirus. The target system for Avian Infectious Laryngotracheitis virus (AILTV) infections is the respiratory system, and the main organ in which the virus remains latent is the trigeminal ganglia. However, the virus has demonstrated tropism for other organs besides the respiratory tract. The main transmission routes are ocular and respiratory. Infected birds with clinical symptoms are main sources of transmission, but birds with latent infections, litter, and contaminated fomites may also transmit the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avian infectious laryngotracheitis; Biosecurity; Epidemiology; South America; Chicken.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000400551

Molecular surveillance of the Newcastle disease virus in domestic and wild birds on the North Eastern Coast and Amazon biome of Brazil
Provedor de dados: Revista Brasileira de Ciência Avícola
Autores: Thomazelli,LM; Araujo,J de; Ferreira,C de S; Hurtado,R; Oliveira,DB; Ometto,T; Golono,M; Sanfilippo,L; Demetrio,C; Figueiredo,ML; Durigon,EL.
Brazil is one of the world's largest countries with a rich diversity of wildlife, including resident and migratory wild birds, which may be natural reservoirs of the Newcastle disease virus (NDV). Because Brazil is a major global exporter of chicken meat, the emergence of such a disease may have a huge negative impact not only on the economy due to trade restrictions and embargoes, but also on the quality of life of the population. Samples were collected from 1,022 asymptomatic domestic and wild birds from the Brazilian coast and the Amazon region using tracheal/cloacal swabs and tested by RT-qPCR. The results showed 7 (0.7%) birds were positive for NDV. The positive samples were then isolated in embryonated chicken eggs and their matrix protein genes were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avian disease; Avian paramyxovirus; Newcastle disease virus; South America; Wild birds.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000100001

New species of Dilobitarsus Latreille with tetra-tuberculated pronotum (Coleoptera, Elateridae, Agrypninae)
Provedor de dados: Revista Brasileira de Entomologia
Autores: Casari,Sônia A.
New species of Dilobitarsus Latreille with tetra-tuberculated pronotum (Coleoptera, Elateridae, Agrypninae). Four species of Dilobitarsus Latreille, 1834, D. angulosus sp. nov. (Brazil: São Paulo, Rio de Janeiro), D. bellus sp. nov. (Peru), D. nigrus sp. nov. (Argentina) and D. thoraconstrictus sp. nov. (Bolivia) are described, and D. quadrituberculatus Candèze, 1857 is redescribed. Diagnostic characters of all studied species are illustrated and new records for D. quadrituberculatus are included. A key to Dilobitarsus species from the Neotropical Region is also presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agrypnini; Genitalia; Insecta; New records; Mouthparts; South America.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262013000400006

Psyllobora picta (Germain) species complex (Coleoptera: Coccinellidae), with descriptions of two new species from Chile
Provedor de dados: Revista Brasileira de Entomologia
Autores: González,Guillermo; Almeida,Lúcia M.
Abstract The Psyllobora picta species complex (Coleoptera: Coccinellidae: Coccinellini) was revised, with the description of two new species, Psyllobora lueri sp. nov. and Psyllobora pauline sp. nov., both from Chile. Psyllobora bicongregata was recorded for the first time from Brazil, and there is no confirmed record of this species for Chile. Also, P. picta was not recognized from Paraguay and Uruguay. Male and female genitalia characters are illustrated for all the species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coccinellini; Genital apparatus; New species; South America; Taxonomy.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262017000400330

A new oligolectic bee species of the genus Rhophitulus Ducke (Hymenoptera, Andrenidae) from South Brazil
Provedor de dados: Revista Brasileira de Entomologia
Autores: 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

Seven new species of Limnophora Robineau-Desvoidy (Diptera: Muscidae) from Ecuador
Provedor de dados: Revista Brasileira de Entomologia
Autores: Fogaça,João Manuel; Carvalho,Claudio J. B. de.
ABSTRACTHere we describe seven new species of Limnophora from Ecuador: Limnophora bifasciatasp. nov. from Napo, Quito; Limnophora equatoriensissp. nov. from Zamora-Chinchipe, Zamora; Limnophora femurosetalissp. nov. from Zamora-Chinchipe, Zamora; Limnophora lamasisp. nov. from Zamora-Chinchipe, Zamora; Limnophora longivittatasp. nov. from Napo, Quito; Limnophora penaisp. nov. from Azuay, Cuenca and Limnophora polletisp. nov. from Napo, Quito. We provide an identification key for the ten recognized species of Limnophora from Ecuador, including L. marginata Stein, 1904, L. pica(Macquart, 1851) and L. saeva (Wiedemann, 1830). We also redescribed Limnophora marginata Stein, 1904, and designated designed lectotype male and paralectotypes males and females of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Key to species; Lectotype designation; South America; Taxonomy.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000300210

Novos gêneros, novas espécies e redescrição em Hemilophini (Coleoptera, Cerambycidae, Lamiinae) das Américas
Provedor de dados: Revista Brasileira de Entomologia
Autores: Galileo,Maria Helena M.; Martins,Ubirajara R.
New genera, new species and redescription in Hemilophini (Coleoptera, Cerambycidae, Lamiinae) from the Americas. New taxa described from El Salvador: Eranina sororcula sp. nov. (La Libertad). From Honduras: E. pallida sp. nov. (department not indicated). From Costa Rica: Mexicoscylus nigritarse sp. nov. (Guanacaste) and Cotyabanycha gen. nov., type species, C. ocularis sp. nov. (Limón). From Colombia and Ecuador: Sybaguasu mirim sp. nov. (Meta and Napo). From Ecuador: Piampatara antennata sp. nov. (Napo), Adesmus simile sp. nov. (Manabi), A. alboniger sp. nov. (Napo), A. swifti sp. nov. (Loja). From Bolivia: Potiapunga gen. nov., type species P. lata sp. nov. (Santa Cruz). Phoebe spegazzinii Bruch, 1908 is recorded for Ecuador (Manabi) and its chromatic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Central America; Insecta; New taxa; South America; Taxonomy.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262013000100006

Immatures of Syphrea uberabensis guerini Bechyné (Coleoptera, Chrysomelidae, Alticini)
Provedor de dados: Revista Brasileira de Entomologia
Autores: Casari,Sônia A.; Teixeira,Édson Possidônio.
Immatures of Syphrea uberabensis guerini Bechyné (Coleoptera, Chrysomelidae, Alticini). Larva and pupa of Syphrea uberabensis guerini are described and illustrated for the first time and a comparison with the described immatures of other Alticini species from Neotropical region and also with Hermaeophaga mercurialis (Fabricius, 1792), from Palearctic region, is presented. Tibouchina stenocarpa (DC.) Cogn. (Melastomataceae) (quaresmeira-do-cerrado) is registered as a new host plant for this species of Alticini.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hermaeophagina; Neotropical; Oedionychina; Pseudolampina; South America.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000100004

Description of a new species of Adetus and of the female of Wappesoeme camiri, new records and updates to type depository for three species of Amphicnaeia Bates (Coleoptera, Cerambycidae)
Provedor de dados: Revista Brasileira de Entomologia
Autores: Santos-Silva,Antonio; Galileo,Maria Helena M.
ABSTRACT A new species of Adetus LeConte, 1852 is described from Bolivia. Additions to the description of Wappesoeme Galileo et al., 2015 and differences between males and females of Wappesoeme camiri Galileo et al., 2015 are provided. New country and state records are provided in Cerambycinae and Lamiinae. The type depository is corrected for three species of Amphicnaeia Bates, 1866.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomecynini; Neotropical Region; Oemini; South America; Taxonomy.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262016000400297

Veliidae (Insecta: Heteroptera: Gerromorpha) from Colombia: Description of a new species and of the male of Euvelia meta Molano, Moreira &amp;amp; Morales, 2016
Provedor de dados: Revista Brasileira de Entomologia
Autores: Morales,Irina; Molano,Fredy; Moreira,Felipe Ferraz Figueiredo.
Abstract Stridulivelia (Aenictovelia) chocoana sp. nov. (Heteroptera: Veliidae: Veliinae) is described based on specimens from the Colombian department of Chocó. The new species is diagnosed by pronotal humeral angles, body length, male hind trochanter and paramere shape. Furthermore, we describe and illustrate the previously unknown male of Euvelia meta Molano, Moreira &amp; Morales, 2016 (Heteroptera: Veliidae: Microveliinae) and its range is extended to Amazonas and Vichada departments.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Faunistics; Hemiptera; South America; Taxonomy; Water striders.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262020000100215

Description of two new species of Stenomicra Coquillett (Diptera, Periscelididae) from the Neotropics
Provedor de dados: Revista Brasileira de Entomologia
Autores: Freitas,Geovânia; Ale-Rocha,Rosaly.
Two new Neotropical species of Stenomicra, S. (Stenomicra) amazonensis sp. nov. and S. (Stenomicra) manausensis sp. nov., are described. These are the first species of the genus reported from the Amazon region.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazil; South America; Stenomicrinae; Taxonomy.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000300007

New enigmatic Andean bee species of Protandrena (Hymenoptera, Andrenidae, Panurginae)
Provedor de dados: Revista Brasileira de Entomologia
Autores: Gonzalez,Victor H.; Ruz,Luisa.
Panurgine bees are diverse and abundant in temperate areas of the Americas but poorly represented to nearly absent in the tropics. We describe and illustrate five distinctive new species of the genus Protandrena that occur at high altitudes (2000-3400 m) in the Andes, from Venezuela to Ecuador. The species are also described to make the names available in forthcoming papers on their biology. These Andean species resemble some members of the subgenus Heterosarus but differ from it, as well as from any other subgenera of Protandrena, primarily in characters of the male genitalia and hidden sterna. The South American Protandrena s. l. are morphologically highly diverse and a complete study of the group is needed before supraspecific names are proposed for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apoidea; Colombia; Floral records; South America; Taxonomy.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262007000400001

First report of Temnocephala haswelli (Platyhelminthes: Temnocephalida) in Pomacea canaliculata (Mollusca: Ampullariidae) from Brazil: description update based on specimens from the state of Rio Grande do Sul, Brazil
Provedor de dados: Revista Brasileira de Zoologia
Autores: Seixas,Samantha A.; Amato,José F. R.; Amato,Suzana B.
The impact of the discovery of Temnocephala haswelli Ponce de Léon, 1989, described as ectosymbionts of ampullariid apple snails outside of Uruguay, motivated us to collect a large number of specimens of Pomacea canaliculata (Lamarck, 1822) from several localities in the southern portion of the state of Rio Grande do Sul. This species was recorded three times after its description: in a study of chromosomes, in a study about the ultrastructure of the collar receptor cells, and in a study of the Haswell glands, all conducted in Uruguay. A total of 301 specimens of P. canaliculata were collected from 1999 to 2007. Temnocephalans found in the pallial cavity were identified as T. haswelli, which occurred in single infestations or concurrently with Temnocephala...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ectocommensals; Mollusks; Neotropical Region; South America; Taxonomy.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000300020

Minaselates, a new genus and new species of Epiphragmophoridae from Brazil (Gastropoda: Stylommatophora: Helicoidea)
Provedor de dados: Revista Brasileira de Zoologia
Autores: Cuezzo,Maria Gabriela; Pena,Meire Silva.
ABSTRACT We describe a new genus and a new species in the family Epiphragmophoridae, Minaselates paradoxa sp. n. The new species was found at the National Park Cavernas do Peruaçu, in northern portion of the state of Minas Gerais, Brazil. Minaselates paradoxa sp. n. is classified in Epiphragmophoridae based on the fact that it shares the following diagnostic features of the family: a dart apparatus with a single dart sac, and two unequal mucous glands at the terminal genitalia. Minaselates gen. n. differs from Epiphragmophora Doering, 1874 by having a granulose protoconch, shell spire with blunt apex, complex microsculpture on the teleoconch and closed umbilicus fused with the shell wall. Also, significant differences between the two genera are the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; Pleurodontidae; Pulmonata; South America; Taxonomy.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702017000100307

Invasion process of Limnoperna fortunei (Bivalvia: Mytilidae): the case of Uruguay River and emissaries of the Esteros del Iberá Wetland, Argentina
Provedor de dados: Revista Brasileira de Zoologia
Autores: Darrigran,Gustavo; Damborenea,Cristina; Drago,Edmundo C.; Ezcurra de Drago,Inés; Paira,Aldo; Archuby,Fernando.
Limnoperna fortunei (Dunker, 1857), during its invasion process in South America, has caused severe impacts both on natural environments altering native biodiversity, ecosystem structure and function-, and on man-made structures causing economic looses. Twenty-one samples were taken from the right bank of the Uruguay River, from tributaries of the Uruguay and Paraná Rivers, the drainage of the Esteros del Ibera Wetland. Based on this fieldwork, the presence of larvae and adults of L. fortunei was determined. Also, through the comparison of environmental characteristic with the known tolerance limits for the species, the possibility of its establishment in environments not yet invaded was determined. Most of the sampling stations have features that allow...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioinvasion; Distribution; Golden mussel; South America; Wetland.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000600004

A new genus of Neotropical spiders of the family Sparassidae (Arachnida: Araneae)
Provedor de dados: Revista Brasileira de Zoologia
Autores: 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

Biology and life table of Dirphia araucariae (Lepidoptera: Saturniidae): A herbivore of potentially high impact on Araucaria angustifolia
Provedor de dados: Revista Brasileira de Zoologia
Autores: Zenker,Mauricio M.; Specht,Alexandre; Fronza,Edegar; Poletto,Graziela; Marcon,Fernanda; Formentini,Aline C.; Gedoz,Mateus.
The life-history and biology of Dirphia araucariae Jones, 1908, including its life fertility table, are here described. Moths were reared in the laboratory under controlled conditions on their host plant, Araucaria angustifolia (Bertoloni) O. Kuntze - Araucariaceae. We describe several life-history traits of the species, namely: developmental period, survival rate, growth rate, fertility, fecundity, sex ratio, cephalic capsule width, and pupal weight. Mean duration of life stages were: egg = 26.78 days; larva = 61.78 days; prepupa = 6.85 days; pupa = 62.46 days; adult = 8.37 days. We found statistically significant differences between sexes for adult, larval and pupal stage duration; larval stage was longer in females while pupal stage was longer in males....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic Forest; Conservation biology; Developmental biology; Forest entomology; Pinheiro-do-Paraná; South America.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000200004

First report of Temnocephala rochensis (Platyhelminthes: Temnocephalida) from Pomacea canaliculata (Mollusca: Ampullariidae) outside Uruguay: description update based on specimens from the state of Rio Grande do Sul, Brazil
Provedor de dados: Revista Brasileira de Zoologia
Autores: Seixas,Samantha A.; Amato,José F. R.; Amato,Suzana B.
Temnocephala rochensis Ponce de Léon, 1979, was the second of four species of Temnocephala Blanchard, 1849 to be described as ectosymbiont of ampullariid apple snails, Pomacea canaliculata (Lamarck, 1822). There have been no records of this Uruguayan species after its initial description. As part of the present study, 111 specimens of P. canaliculata were collected between 2003 and 2009. Temnocephalans found in the pallial cavity were identified as T. rochensis, occurring in single infestations, or concurrently with Temnocephala haswelli Ponce de Léon, 1989. Specimens of T. rochensis showed a conspicuous red eye pigment which faded after ethanol fixation. Important taxonomic characters of the reproductive system were evidenced by several techniques, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ectocommensals; Mollusks; Neotropical Region; South America; Taxonomy.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000500019

A new species of Tormopsolus (Digenea: Acanthocolpidae) parasite of Genypterus brasiliensis (Teleostei: Ophidiidae) from the Brazilian coast
Provedor de dados: Revista Brasileira de Zoologia
Autores: Knoff,Marcelo; Fernandes,Berenice M. M.
Tormopsolus brasiliensis sp. nov. is described from the intestine of Genypterus brasiliensis Regan, 1903, from Brazil. The new species is characterized mainly by having an almost square terminal oral sucker, a pharynx of the same size or larger than the oral sucker, and testes very close to each other and without vitelline follicles between them. Tormopsolus brasiliensis sp. nov. is most closely related to T. lintoni Caballero, 1952, sharing with the latter the space between the gonads and the distribution of the vitelline fields. It differs from that species by the lack of a space between the gonads and the absence of vitelline follicles between the testes; by the smaller distance between the oral and ventral suckers; by the presence of a wide ejaculatory...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Marine fish; South America; Taxonomy; Tormopsolus brasiliensis sp. nov.; Trematoda.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000300019

Revisão das espécies sul-americanas de Rhopalophora (Coleoptera: Cerambycidae)
Provedor de dados: Revista Brasileira de Zoologia
Autores: Napp,Dilma Solange.
Rhopalophora Audinet-Serville, 1834 is currently composed of 25 species with a distribution ranging from North to South America. Only nine of them were described from South America and have been recorded exclusively from this continent. The North and Central American species were revised by GIESBERT &amp;amp; CHEMSAK (1993); the South American species, on the other hand, still remain with their descriptions fragmented in different publications that date from 1824 to 1989.The purposes of this work are to redescribe the genus, to gather information on the South American species, to provide updated and standardized descriptions, illustrations, and an identification key, in order to complement that of GIESBERT &amp;amp; CHEMSAK (1993). The following species...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerambycinae; Rhopalophorini; South America; Taxonomy.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200019

Braga cigarra comb. nov. for Philostomella cigarra (Crustacea: Isopoda: Cymothoidae) with a redescription of the species based on specimens from Galeocharax kneri, a freshwater fish of Minas Gerais State, Brazil
Provedor de dados: Revista Brasileira de Zoologia
Autores: Thatcher,Vernon E.; Oliveira,Antonio A. N. de; Garcia,Adriana M.
Specimens of a cymothoid isopod from a freshwater fish of Minas Gerais State were studied. These were found to be morphologically comparable to Philostomella cigarra Szidat &amp;amp; Schubart, 1960, except for having multilaminate pleopods which is the distinguishing characteristic of the genus Braga Schiödte &amp;amp; Meinert, 1881. The first pleopod is bilaminate while the second is quadrilaminate. Pleopods three to five are trilaminate. It is herein proposed that the generic name Philostomella Szidat &amp;amp; Schubart, 1960, should be considered invalid and that the species P. cigarra should be transferred to Braga. Braga now contains eight species, including B. cigarra comb. nov., all from South American freshwater fishes. The principal difference...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cymothoid; Freshwater fish parasite; South America.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000100021

Morphometric and morphological variation in South American populations of Myotis albescens (Chiroptera: Vespertilionidae)
Provedor de dados: Revista Brasileira de Zoologia
Autores: Moratelli,Ricardo; Oliveira,João Alves de.
Myotis albescens (É. Geoffroy, 1806) occurs from Mexico to Uruguay and Argentina. Despite a large number of specimens in collections, its variability in South America has been underestimated, potentially leading to errors in identification. In order to clarify the taxonomic limits of M. albescens and to evaluate previous hypotheses of geographic variation in size we analyzed the type material and studied the variability in South American samples using multivariate exploratory and confirmatory procedures, as well as frequency analyses of discrete morphological data. The presence of a fringe of hairs along the trailing edge of the uropatagium, the long and silky pelage with frosted appearance on the dorsum, ear 9 to 14 mm long, broad interorbital and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Myotis; Myotinae; South America; Taxonomy.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000600013

New records of Parvalona parva (Crustacea: Anomopoda: Chydoridae) from Brazil, with first description of the male
Provedor de dados: Revista Brasileira de Zoologia
Autores: Elmoor-Loureiro,Lourdes M.A.; Santos-Wisniewski,Maria J. dos; Rocha,Odete.
The Neotropical species Parvalona parva (Daday, 1905) was previously reported only from two localities (Northern Argentina and Lençóis Maranhenses, Brazil). In the present paper, seven new records of P. parva from Brazil are presented. The specimens were collected from small waterbodies located in the Federal District and the states of São Paulo, Pará, and Pernambuco. These new records suggest that this species is not as rare as previously believed. The male, sexual female, and the lateral head pores of parthenogenetic females are described and illustrated for the first time.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aloninae; Cladoceran; South America; Systematic.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200022

Association between deep-water scale-worms (Annelida: Polynoidae) and black corals (Cnidaria: Antipatharia) in the Southwestern Atlantic
Provedor de dados: Revista Brasileira de Zoologia
Autores: De Assis,José Eriberto; Souza,José Roberto B. de; Lima,Manuela M. de; Lima,Gislaine V. de; Cordeiro,Ralf T.S.; Pérez,Carlos D.
ABSTRACT Polynoid scale-worms have been found living as commensals with deep-water antipatharians (commonly known as black corals) in the Potiguar Basin, off Rio Grande do Norte State, Northeastern Brazil. In this paper two polychaete species and four black corals species are redescribed. Benhamipolynoe cf. antipathicola and Parahololepidella cf. greeffi, and the black coral Stylopathes adinocrada Opresko, 2006 are recorded for the Southwestern Atlantic. Benhamipolynoe cf. antipathicola was ﬁrst described from off New Zealand and the Malay Archipelago, as symbiont with the black coral Stylopathes tenuispina (Silberfeld, 1909). It was later reported for the North Atlantic, off Florida, associated with Stylopathes columnaris (Duchassaing, 1870). In our...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazil; Hexacorallia; Polynoids; South America; Symbiosis.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702019000100315

A new genus and species of Cicadellini (Hemiptera: Cicadellidae) from the Brazilian Atlantic Rainforest
Provedor de dados: Revista Brasileira de Zoologia
Autores: 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

Redescription of Temnocephala iheringi (Platyhelminthes: Temnocephalida) based on specimens from Pomacea canaliculata (Mollusca: Ampullariidae) of the state of Rio Grande do Sul, Brazil: the possible type host and type locality
Provedor de dados: Revista Brasileira de Zoologia
Autores: Seixas,Samantha A.; Amato,José F. R.; Amato,Suzana B.
The original description of Temnocephala iheringi Haswell, 1893 was based on specimens collected by Hermann von Ihering from undetermined ampullariid apple snails, which at that time were identified as Ampullaria sp., and sent to William H. Haswell, with the type locality simply indicated as Brazil. The type specimens studied by Haswell were not found in the scientific collections of Brazil, Europe or Australia, and should be considered lost. In 1941, Pereira &amp;amp; Cuocolo collected specimens from apple snails, identified as Pomacea lineata (Spix in Wagner, 1827), at two localities (Guaicurús and Salobra) in the state of Mato Grosso do Sul, central Brazil. These specimens could not be located either and should, thus, be considered lost as well. Pomacea...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ectocommensals; Mollusks; Neotropical Region; South America; Taxonomy.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000200012

Does the widely distributed rodent Calomys tener (Cricetidae: Sigmodontinae) constitute a single evolutionary unit?
Provedor de dados: Revista Brasileira de Zoologia
Autores: González-Ittig,Raul E.; Kandel,Narayan P.; Bonvicino,Cibele R.; Salazar-Bravo,Jorge.
ABSTRACT The nominal species Calomys tener (Winge, 1887) ranges broadly in open lands of the Caatinga, Cerrado, Pantanal and Mata Atlântica of Brazil, and was recently reported from the Pampas of southern Brazil, and in the Selva Paranaense of eastern Paraguay and northeastern Argentina. This rodent can be infected with the pathogenic Araraquara hantavirus in Brazil. Given that most epidemiological studies have not taken into account updated taxonomic findings of their rodent hosts, in this study, we obtained sequence data of the Cyt-b and COI genes of specimens of C. tener from 22 different geographical localities from throughout the currently known distribution of the species (including individuals from Argentina, Paraguay, Bolivia, and Brazil) to test...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cyt-b; Phylogenetic relationships; South America.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702019000100311

Bofedales: high altitude peatlands of the central Andes
Provedor de dados: Revista Chilena de Historia Natural
Autores: SQUEO,FRANCISCO A; WARNER,BARRY G; ARAVENA,RAMÓN; ESPINOZA,DIANA.
There is an exceptional group of alpine peatlands in the world situated in the arid grasslands of the central Andes. The peatlands in northern Chile occur in the most arid part of their range. Members of the Juncaceae are the primary peat-forming plant species. Fresh and mildly saline groundwaters originate from glaciers, snowmelt and rain are the water sources for the northern Chile peatlands. Paleoecological investigations suggest that some peatlands are recent features of the landscape having developed within the last three thousand years or less. These peatlands are unique, extremely fragile water features sensitive to climate changes and human disturbances such as regional mining activity. Much more work is required to develop scientifically based...
Tipo: Journal article
Palavras-chave: Peatlands; Arid grasslands; South America.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000200010

The Chacoan bat fauna identity: Patterns of distributional congruence and conservation implications
Provedor de dados: Revista Chilena de Historia Natural
Autores: SANDOVAL,M. LEONOR; BARQUEZ,RUBÉN M.
The aim of this paper is to characterize the Chaco thorn-scrub savanna as a unit, biologically defined by means of its identification as a regional pattern of distributional congruence, through the evaluation of the utility of bat assemblages as biogeographical indicators of the Chaco at regional scale, and to then evaluate this characterization in terms of the conservation value of this habitat. We have considered the whole territory of Paraguay and Bolivia, and the northern of Argentina; that is the entire Chaco biogeographical province, and part of the surrounding biogeographical provinces. We conducted an exhaustive search and constructed a database consisting in 9509 geo-referenced records showing that the bat fauna of the Chaco is richer than...
Tipo: Journal article
Palavras-chave: Chaco; Chiroptera; Optimality criterion; Patterns of distributional congruence; South America.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2013000100007

Fossil Chondrichthyans from the Upper Pliocene Horcón Formation, Valparaíso Region, central Chile
Provedor de dados: Revista Chilena de Historia Natural
Autores: CARRILLO-BRICEÑO,JORGE D; GONZÁLEZ-BARBA,GERARDO; LANDAETA,MAURICIO F; NIELSEN,SVEN N.
Twelve taxa of chondrichthyan fossils from strata assigned to the Upper Pliocene of the Horcón Formation, Valparaiso region, central Chile, are described and prior records paleobiogeography and paleoenvironmental implications are discussed. The fauna includes Callorhinchus sp., Heterodontus sp., Carcharodon carcharias, Isurus oxyrinchus, Galeorhinus galeus, Carcharhinus brachyurus, Hexanchus griseus, Squatina sp., Pristiophorus sp., Rajidae, Dasyatidae and Myliobatidae. This is one of the most diverse chondrichthyan associations of the Late Neogene of Chile and the rest of South America.
Tipo: Journal article
Palavras-chave: South America; Paleobiogeography; Paleoecology; Neogene; Fossil sharks and rays.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2013000200008

Key to larvae of the South American subfamilies of weevils (Coleoptera, Curculionoidea)
Provedor de dados: Revista Chilena de Historia Natural
Autores: MARVALDI,ADRIANA E.
The weevils (Coleoptera: Curculionoidea) from South America are classsified into seven families and 28 subfamilies as follows: Nemonychidae (Rhinorhynchinae), Anthribidae (Anthribinae), Belidae (Belinae and Oxycoryninae), Attelabidae (Attelabinae and Rhynchitinae), Brentidae (Apioninae and Brentinae), Caridae (Carinae) and Curculionidae (Erirhininae, Dryophthorinae, Entiminae, Aterpinae, Gonipterinae, Rhythirrininae, Thecesterninae, Eugnominae, Hyperinae, Curculioninae, Cryptorhynchinae, Mesoptiliinae (= Magdalidinae), Molytinae, Baridinae, Lixinae, Conoderinae (= Zygopinae), Cossoninae, Scolytinae and Platypodinae). A dichotomous key for the larval stage is provided for identification of the families and subfamilies of Curculionoidea present in South...
Tipo: Journal article
Palavras-chave: Curculionoidea; South America; Identification; Larvae.
Ano: 2003
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2003000400005

Body mass variation in the Geoffroy's cat (Oncifelis geoffroyi)
Provedor de dados: Revista Chilena de Historia Natural
Autores: LUCHERINI,MAURO; MANFREDI,CLAUDIA; LUENGOS,ESTELA; DIAS MAZIM,FÁBIO; SOLER,LUCÍA; CASANAVE,EMMA B.
We report new data on the intersexual and geographical variation in body mass of the Geoffroy's cat (Oncifelis geoffroyi d'Orbigny and Gervais 1844), a little known small cat from South America, and combine them with the existing information to compare alternative hypotheses for variation in body mass. Most data on the body mass of O. geoffroyi have been obtained from previous research on this felid in four study areas of southern Brazil and central and southern Argentina. These data were added to those reported for other three additional locations. Our results set the body mass of O. geoffroyi to 4.26 ± 1.03 kg (mean ± SD, n = 56). We also show that males generally are heavier than females throughout most of this species' distributional range. Body mass...
Tipo: Journal article
Palavras-chave: Carnivores; Felids; Oncifelis geoffroyi; South America; Body mass.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000200003

Key to higher taxa of South American weevils based on adult characters (Coleoptera, Curculionoidea)
Provedor de dados: Revista Chilena de Historia Natural
Autores: MARVALDI,ADRIANA E.; LANTERI,ANALIA A.
The weevils (Coleoptera: Curculionoidea) from South America are currently classified in the following families and subfamilies: Nemonychidae (Rhinorhynchinae), Anthribidae (Anthribinae), Belidae (Belinae and Oxycoryninae), Attelabidae (Attelabinae and Rhynchitinae), Brentidae (Apioninae and Brentinae), Caridae (Carinae) and Curculionidae (Erirhininae, Dryophthorinae, Entiminae, Aterpinae, Gonipterinae, Rhythirrininae, Thecesterninae, Eugnominae, Hyperinae, Curculioninae, Cryptorhynchinae, Mesoptiliinae (= Magdalidinae), Molytinae, Baridinae, Lixinae, Conoderinae (= Zygopinae), Cossoninae, Scolytinae and Platypodinae). In the present contribution we bring a dichotomous key for the identification of seven families and 28 subfamilies of Curculionoidea from...
Tipo: Journal article
Palavras-chave: Curculionoidea; South America; Dichotomous key.
Ano: 2005
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000100006

Revalidation of Argentagrion and redefinition of Homeoura, with the description of H. obrieni n. sp. (Odonata: Coenagrionidae)
Provedor de dados: Revista de la Sociedad Entomológica Argentina
Autores: Von Ellenrieder,Natalia.
Argentagrion Fraser, currently considered a synonym of Homeoura Kennedy, is revalidated; both genera are rediagnosed and their species illustrated, keyed and mapped. Ischnura sobrina Schmidt is transferred to Homeoura, and a new species, H. obrieni is described, resulting in five species being included in Homeoura (H. chelifera (Selys), H. lindneri (Ris), H. nepos (Selys), H. obrieni sp. nov. and H. sobrina (Schmidt) comb. nov.) and two in Argentagrion (A. ambiguum (Ris) and A. silviae Bulla).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Odonata; Coenagrionidae; Argentagrion; Homeoura; South America.
Ano: 2008
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802008000100009

Taxonomy of the genus Gabrius (Coleoptera: Staphylinidae) in southern South America
Provedor de dados: Revista de la Sociedad Entomológica Argentina
Autores: Chani-Posse,Mariana.
Five species of Gabrius Stephens, 1829 from southern South America are redescribed and illustrated. Six species of Gabrius are now known from southern South America: G argentinus (Bernhauer, 1912), G hornaditanus (Rambousek, 1925), G. jujuyensis (Bernhauer, 1921), G nidicola (Bernhauer, 1921), G tucumanensis (Bernhauer, 1927) and G nigritulus (Gravenhorst, 1802). An identification key to these species, diagnosis and illustrations for G nigritulus and a distribution map are provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Staphylininae; Philonthina; Gabrius; Philonthus; Taxonomy; South America.
Ano: 2011
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802011000100001

First record of the ant genus Oxyepoecus (Formicidae: Myrmicinae: Solenopsidini) in Chile, with remarks on its geographical range
Provedor de dados: Revista de la Sociedad Entomológica Argentina
Autores: Cuezzo,Fabiana.
The ant genus Oxyepoecus (Formicidae: Myrmicinae: Solenopsidini) Santschi, 1926 has 16 species recognized as valid. Three of these species: O. inquilinus (Kusnezov, 1952), O. bruchi Santschi, 1926 and O. daguerrei (Santschi, 1933) are considered as vulnerable (VuD2) and included in the Red List of threatened species. The aim of this paper is to record one of these species: O. inquilinus in Chile for the first time, adding a new locality to be considered as the southernmost limit of distribution for this relatively rarely collected ant genus.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Endangered species; Formicidae; South America; Chile.
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802007000100012

Taxonomy and cladistics of the group of genera related to Cyrtomon Schoenherr (Coleoptera: Curculionidae: Naupactini)
Provedor de dados: Revista de la Sociedad Entomológica Argentina
Autores: Lanteri,Analía A.; Del Rio,M. Guadalupe.
In this contribution we update taxonomic and geographical information on five genera of weevils (Curculionidae: Entiminae: Naupactini) distributed in Argentina, Brazil, Bolivia, Paraguay and Uruguay. As a result of a cladistic analysis based on 48 morphological characters and 18 terminal species (two outgroups and 16 species of the ingroup) we recover a single most parsimonious tree with two main subgroups, one including Mendozella Hustache as a sister group of Cyrtomon Schoenherr, and the other including Lamprocyphopsis Lanteri, Priocyphopsis Lanteri and Priocyphus Hustache. In this tree Cyrtomon hirsutus (Hustache) is the sister species of Mendozella curvispinis (Hustache), consequently we establish the new combination Mendozella hirsuta (Hustache), and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Priocyphus; Priocyphopsis; Lamprocyphopsis; Mendozella; South America; Geographic distribution.
Ano: 2016
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802016000100005

First record of the genus Terenocoris (Heteroptera: Rhyparochromidae: Antillocorini) from Argentina and Bolivia
Provedor de dados: Revista de la Sociedad Entomológica Argentina
Autores: Dellapé,Pablo Matías; Cheli,Germán.
Terenocoris nitidus Slater is recorded for the first time from Argentina and Bolivia. The first record of Patagonia is the southernmost of the tribe Antillocorini.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: South America; First record; Heteroptera; Rhyparochromidae; Antillocorini.
Ano: 2006
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802006000200013

Redescription of some South American species of Belonuchus (Coleoptera: Staphylinidae), with a checklist of the southern South American species of the genus
Provedor de dados: Revista de la Sociedad Entomológica Argentina
Autores: Chani-Posse,Mariana.
Six species of Belonuchus Nordmann, 1837 from South America are redescribed and illustrated: B. aluticollis (Bernhauer, 1921), B. castaneus Chani-Posse, 2006, B. flavicoxis (Bernhauer, 1912), B. multipunctatus (Coiffait, 1981), B. richteri (Bernhauer, 1912) and B. weiserianus (Bernhauer, 1921). A checklist of the 23 species of Belonuchus currently known from southern South America is appended. A lectotype is designated for B. richteri Bernhauer, 1922.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Belonuchus; Philonthina; Philonthus; South America; Staphylininae; Taxonomy.
Ano: 2011
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802011000200007

Odonata from Iberá Wetlands (Corrientes, Argentina): preliminary inventory and biodiversity
Provedor de dados: Revista de la Sociedad Entomológica Argentina
Autores: Muzón,Javier; Von Ellenrieder,Natalia; Pessacq,Pablo; Lozano,Federico; Garré,Analía; Lambruschini,Juliana; Ramos,Lía; Weigel Muñoz,María Soledad.
A preliminary inventory of the Odonata from Iberá Wetlands and their area of influence (Corrientes, Argentina) is presented. Different kinds of environments were surveyed in seven localities. Seventy five species grouped in 33 genera and seven families were registered, from which three genera and 10 species are new records for the country. The localities belonging to the Iberá Wetland system show low endemicity and a high faunistic relationship with the Paraná basin.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Iberá wetlands; Odonata; Dragonflies; South America; Argentina; Biodiversity.
Ano: 2008
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802008000100007

A new Neotropical species of Megamelus and the reassignment of Stenocranus maculipes (Hemiptera: Delphacidae)
Provedor de dados: Revista de la Sociedad Entomológica Argentina
Autores: Mariani,Roxana; Sosa,Alejandro J.; de Remes Lenicov,Ana M. M.
We report on two species of Delphacidae from Argentine wetlands, Megamelus nigrifasciatus Mariani &amp;amp; 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

Desenvolvimento de um banco de dados para a informatização da Coleção Helmintológica do Instituto Oswaldo Cruz (CHIOC)
Provedor de dados: Zoologia
Autores: Noronha,Dely; Frisso,Ademir; Mattos,Fabrício Brauns.
An electronic database was developed for the proper and easy access to the samples deposited in the Helminthological Collection of the Oswaldo Cruz Institute (CHIOC) considering its great biodiversity and the permanent demands for scientific support from Brazilian and foreign research institutions, on what concerns to the loan and inclusion of either type or voucher specimens in the CHIOC, that is the largest helminth collection in South America.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Helminths; Collections; South America.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000400036

A new species of Temnocephala Blanchard (Platyhelminthes, Temnocephalida) ectosymbiont on creeping water bugs, Cryphocricos granulosus De Carlo (Hemiptera, Naucoridae) from southern Brazil
Provedor de dados: Zoologia
Autores: Amato,José F. R.; Seixas,Samantha A.; Amato,Suzana B.
Temnocephala minutocirrus sp. nov., an ectosymbiont on Cryphocricos granulosus De Carlo, 1967, is described from the State of Rio Grande do Sul, southern Brazil. One hundred and nine naucorids were examined, of which 36 (33%) were positive for this species of Temnocephala Blanchard, 1849. In one sample of 94 creeping water bugs, 49 (52%) were 4th instar nymphs, 6% of which were infested; 45 (48%) were adults, either brachypterous (40 with 18 males and 22 females) or macropterous (5 with 1 male and 4 females), 67% of which were infested (29% males and 38% females). Temnocephalan eggs were found both ventrally and dorsally: fixed on coxae, trochanters, and along the sternum between fore middle, and hind pairs of legs; basal of the abdominal area; and on the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ectocommensals; Neotropical Region; Rio Grande do Sul; South America; Taxonomy.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752007000400022

Anilocra montti sp. n. (Isopoda, Cymothoidae) a parasite of caged salmon and trout in Chile
Provedor de dados: Zoologia
Autores: Thatcher,Vernon E.; Blumenfeldt,Carlos Lobos.
Anilocra montti sp. n. (Isopoda, Cymothoidae) is described from the mouths and branchial chambers of caged salmon and trout from Puerto Montt, Chile. The description is based on a detailed study of 30 male specimens. No females were found, indicating that salminoids are not the normal hosts of the parasite. The new species differs from others in the genus by having carinae on pereopods 4-7, a pleon that is abruptly narrower than the pereon, second pleopods without appendices masculina, a pleotelson that is wider than long and uropods with subequal rami.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Isopod; Cymothoid; Fish parasite; Chile; South America.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000500023

The occurrence of Pontoporia blainvillei (Gervais &amp;amp; d'Orbigny) (Cetacea, Pontoporiidae) in an estuarine area in southern Brazil
Provedor de dados: Zoologia
Autores: Cremer,Marta J.; Simões-Lopes,Paulo C.
The toninha, or franciscana, Pontoporia blainvillei (Gervais &amp;amp; D'Orbigny, 1844), is an endemic species of cetacean of the southwestern Atlantic Ocean. There is little information on the occurrence of this species in its natural environment due to the great difficulty in sighting it. Systematized and non-systematized observations of franciscanas were made from December 1996 through November 2001 at Babitonga Bay, on the northern coast of Santa Catarina State, southern Brazil. The observations were made from small motorboats. A total of 79 observations were made, totaling 561 individuals. Up to 59.5% of the groups consisted of over four individuals and the average group size was seven. Calves were present in 30.4% of the observations. The species was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Behavior; Group size; Distribution; South America.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000300032

Ergasilus chelangulatus sp. nov. (Copepoda: Ergasilidae) a branchial parasite of the freshwater catfish, Pimelodus maculatus from the upper São Francisco River, Brazil
Provedor de dados: Zoologia
Autores: Thatcher,Vernon E.; Brasil-Sato,Marilia C.
Ergasilus chelangulatus sp. nov. is described from the freshwater fish, Pimelodus maculatus Lacépède, 1803 (Siluriformes: Pimelodidae) of the upper São Francisco River, Minas Gerais State, Brazil. The new species is based on female specimens and the male is unknown. This species has a serrate seta on exopod one and a two-segmented first endopod, as do most Amazonian species of this genus. The body is elongate and produced anteriorly. The antennae are elongate and have prominent sensilla on segments two and three. Ergasilus chelangulatus sp. nov. can be distinguished from all known species of Ergasilus by the fourth antennal segment (claw) which is bent at nearly a right angle.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Catfish parasite; Copepod parasite; Freshwater fish; South America.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000300018

Body mass and acquisition of breeding plumage of wintering Calidris pusilla (Linnaeus) (Aves, Scolopacidae) in the coast of Pernambuco, north-eastern Brazil
Provedor de dados: Zoologia
Autores: Fedrizzi,Carmem E.; Azevedo Júnior,Severino M. de; Larrazábal,Maria E. Lacerda de.
Annually, large flocks of semipalmated sandpiper Calidris pusilla (Linnaeus, 1766) winter along South America coast, between September-April. They store fats in order to moult and return to their breeding grounds. Here, was examined body masses and plumage of adults Semipalmated Sandpipers during the departure month to evaluate the relationship between body mass and plumage. Fieldwork was conducted at Coroa do Avião (7º40'S, 34º50'W), Pernambuco. Birds were trapped in mist-nets between April 1990 and 1997. They were weighed, and aged according to plumage. Adult plumage may be (1) non-breeding, (2) pre-breeding, and (3) breeding. A total of 213 birds were weighed and examined, so that 8.0% (17) presented non-breeding plumage, 54.0% (115) pre-breeding, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Migration; Over-summering; Shorebirds; South America; Wintering areas.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752004000200013

Nova espécie de Hesperandra Arigony da Bolívia (Coleoptera, Cerambycidae, Parandrinae)
Provedor de dados: Zoologia
Autores: Santos-Silva,Antonio.
Hesperandra thomasi sp. nov. is described and illustrated.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coleoptera; Cerambycidae; Parandrinae; Hesperandra; South America; Taxonomy.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000400001

Ergasilussalmini sp. nov. (Copepoda: Ergasilidae) a branchial parasite of "dourado", Salminus franciscanus from the upper São Francisco River, Brazil
Provedor de dados: Zoologia
Autores: Thatcher,Vernon E.; Brasil-Sato,Marilia C.
Ergasilus salmini sp. nov. a branchial parasite of the "dourado", Salminus franciscanus Lima &amp;amp; Britski, 2007, from the upper São Francisco river, Minas Gerais State, Brazil, is described based on female specimens. The new species has a serrate, curved seta on the first exopod as do most of the known South American species of the genus. Other than that, it does not closely resemble any known species of this genus. Many of the known ergasilids have head, and first two thoracic segments completely fused to form a cephalothorax. In the new species, the head is incompletely fused, the first thoracic segment is fused, but thoracic segment two is free. Ergasilus hydrolycus Thatcher, Boeger &amp;amp; Robertson, 1984, also has a free second thoracic segment...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Copepod parasite; Crustacean parasite; Freshwater fish; São Francisco River Basin; South America.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000300023

Espécies de Panurgillus Schlindwein &amp;amp; Moure (Hymenoptera, Andrenidae) depositados no Naturkunde Museum, Berlin
Provedor de dados: Zoologia
Autores: Schlindwein,Clemens; Moure,Jesus Santiago.
The bees described as Panurginus Nylander, 1848, from southern South America and deposited in the Museum Humboldt, Berlin, were studied. Seven species were redescribed and trans-ferred to the genus Panurgillus Schlindwein &amp;amp; Moure, 1998: P. aeneiventris (Friese, 1908),P. brunneicornis (Strand, 1910), P.paraguayanus (Strand, 1910), P. pauloensis (Friese, 1916), P. saltensis (Friese, 1908), P. solani (Ducke, 1912) e P. steinbachi (Friese, 1916). A key for the identification of the 21 known species of the genus is included. Panurginus flaviceps Friese, 1916 and P. saltensis var. nigroclypeata Friese, 1908 described by Friese are synonyms of Anthrenoides meridionalis (Schrottky, 1906). Panurginus laticeps Friese, 1916 belongs to Cephalurgus Moure...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hymenoptera; Apoidea; Andrenidae; Panurginae; Panurgillus; South America.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000500006

Systematic revision of the South American species of Pinguipedidae (teleostei, trachinoidei)
Provedor de dados: Zoologia
Autores: Rosa,lerecê L; Rosa,Ricardo S.
Five genera of marine fishes are recognized in the family Pinguipedidae: Pinguipes, Prolatilus, Pseudopercis, Paraperci and Kochichlhys, the first three being endemic to South America. The following South American pinguipedid species are considered valid: Pinguipes brasilianus, Pinguipes chilensis, Prolatilus jugularis, Pseudopercis numida, Pseudopercis semifasciata and Parapercis dockinski. Lecto-types are designated for Pinguipes brasilianus, Pinguipes chilensis and Prolatilus jugularis.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Teleostei; Pinguipedidae; South America; Revision.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000400009

New South American genus and species of Cleomenini (Coleoptera, Cerambycidae)
Provedor de dados: Zoologia
Autores: Napp,Dilma Solange; Mermudes,José Ricardo M.
A new genus, Timabiara, and a new species, T. bahiensis, are described from Brazil (Bahia). The Cleomenini key for neotropical genera presented by Napp &amp;amp; Mermudes (2001) is herein modified in order to include this new genus.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerambycinae; Cleomenini; New genus; South America; Timabiara.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000500004

New species of Temnocephala Blanchard (Platyhelminthes, Temnocephalida) ectosymbiont on Aegla serrana Buckup &amp;amp; Rossi (Crustacea, Anomura) from southern Brazil
Provedor de dados: Zoologia
Autores: Amato,José Felipe Ribeiro; Amato,Suzana B.; Daudt,Luiz Carlos Campos.
A new species of the genus Temnocephala Blanchard, 1849 is described from southern Brazil, ectosymbiont on Aegla serrana Buckup &amp;amp; Rossi, 1977, an anomuran crustacean, collected in a creek and a reservoir of the highlands in the State of Rio Grande do Sul. All crustaceans examined were positive for this species of Temnocephala and carried eggs in different regions of the ventral side: perioral area, pleural strips, esternal plates, pereiopods and chelipods; to a lesser extent in the dorsal side of the cephalothorax and dorsal side of the uropods; as well as adult and young specimens. The most distinctive characters of the new species are: 1) cyanophilous glands forming an irregular-shaped, grape-like, bunch of approximately 10-15 cells, deeply...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ectocommensals; Neotropical; Rio Grande do Sul; South America; Taxonomy.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000300021

A new species of Temnocephala Blanchard (Platyhelminthes, Temnocephalida) ectosymbiont on Trichodactylus fluviatilis Latreille (Crustacea, Decapoda, Trichodactylidae) from southern Brazil
Provedor de dados: Zoologia
Autores: Amato,José F. R.; Amato,Suzana B.; Seixas,Samantha A.
Temnocephala trapeziformis sp. nov., ectosymbiont on Trichodactylus fluviatilis Latreille, 1828 is described from the State of Rio Grande do Sul, southern Brazil. Sixty-eight crabs were examined, of which 61 (89.7 %) were positive for this species of the genus Temnocephala Blanchard, 1849. Eggs, as well as adult and young specimens, were found on the pleural areas of the carapace, in the orbital cavities, and, usually, on the fourth pair of pereiopods. The temnocephalans were always devoid of body pigmentation, although they kept the red eye pigment, undiluted in specimens fixed by hot (90ºC) phosphate buffered 10% formalin. The most distinctive characters of the new species are: 1) the shape and size of the cirrus and the characteristics of its introvert...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ectocommensals; Neotropical region; Rio Grande do Sul; South America; Taxonomy.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000300026

Belostoma dilatatum (Dufour) (Hemiptera, Belostomatidae) hosting metacercariae of Stomylotrema vicarium Braun (Digenea, Stomylotrematidae) in southern Brazil
Provedor de dados: Zoologia
Autores: Amato,Suzana B.; Amato,José F. R.
Giant water bugs (aquatic Heteroptera), Belostoma dilatatum (Dufour, 1863), were collected in rice plantation water canals, in the Municipality of Eldorado do Sul, outskirts of Porto Alegre, State of Rio Grande do Sul, southern Brazil. Five specimens were dissected with the objective of finding metacercariae of digenetic trematodes. Four of them (80%) were positive for metacercarial cysts of Stomylotrema vicarium Braun, 1901. The intensities of infection varied from 1 to 16 metacercariae per host (average 7.6). The cysts were whitish, translucent, and found loose among the viscera, in the abdominal and thoracic cavities. Belostoma dilatatum is a new host record for metacercarial cysts of stomylotrematid digenetic trematodes and this is the first time that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heteroptera; Trematode; Neotropical; Rio Grande do Sul; South America.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000100028

New species of Temnocephala Blanchard (Platyhelminthes, Temnocephalida) ectosymbiont on giant water bugs, Belostoma spp. (Hemiptera, Belostomatidae) from southern Brazil
Provedor de dados: Zoologia
Autores: Amato,José F. R.; Amato,Suzana B.
A new species of Temnocephala Blanchard, 1849 is described from southern Brazil, ectosymbiont on giant water bugs (aquatic hemipterans), Belostoma spp. from the greater Porto Alegre, State of Rio Grande do Sul. Some hemipterans examined were positive for this species of Temnocephala and carried bunches of eggs between the first two pairs of legs and between the first pair of legs and the rostrum, as well as adult and young specimens. The adults were darkly pigmented (greenish-brown), mimetizing the color of the hemipteran hosts. The new species is similar to Temnocephala decarloi Moretto, 1978, from Argentina, the only other species of Temnocephala from belostomatid hemipterans known to date, by having an extra long and curved cirrus, but differs by having...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ectocommensals; Neotropical; Rio Grande do Sul; South America; Taxonomy.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000100014

Mirídeos neotropicais: CCCXCIX. Espécies novas da América do Sul (Hemiptera)
Provedor de dados: Zoologia
Autores: Carvalho,José C.M.; Costa,Luiz A.A.
Six new species of Hemiptera, Miridae, from South America are described as follows: Chrysodasia pronotata, sp.n.; Ellenia pallida, sp.n.; Horcias niger, sp.n.; Horciasoides ecuatorianus, sp.n.; Neostenotus villensis, sp.n.; Tropidosteptes scutellatus, sp.n. Figures of habitus and male genitalia are included.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hemiptera; Miridae; New taxa; South America.
Ano: 1993
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751993000400016

Skrjabinodon heliocostai sp.n. (Nematoda, Pharyngodonidae) parasitizing Mabuya frenata (Cope) (Lacertilia, Scincidae) in Brazil and the reallocation of Skrjabinodon capacyupanquii (Freitas, Vicente &amp;amp; Ibanez) in the genus Thelandros Wedl
Provedor de dados: Zoologia
Autores: Vicente,Joaquim J.; Vrcibradic,Davor; Muniz-Pereira,Luis C.; Pinto,Roberto Magalhães.
The present report is related to an oxyurid nematode recovered from a reptilian host, Mabuya frenata (Cope, 1862) and the proposal of Skrjabinodon helicostai sp.n., based mainly on findings referring to the lateral alae, position of excretory pore and vulvar apertures, cuticular spines of the tail and aspect of the eggs. The examination of types of Skrjabinodon capacyupanquii (Freitas, Vicente &amp;amp; Ibanez, 1968) from a Peruvian lizard, indicated the reallocation of this species in the genus Thelandros Wedl., 1862, as T. capacyupanquii comb.n., based on the diameter of the caudal appendage of males and position of the vulvar aperture. The new species described herein represents the first report of a species of the genus Skrjabinodon Inglis, 1968 in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nematodes; Skrjabinodon; New species; Thelandros; New combination; Lizard; South America.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000200006

Brasacanthus sphoeroides gen. n., sp. n. (Acanthocephala, Echinorhynchidae) from a coastal marine fish of Paraná State, Brazil
Provedor de dados: Zoologia
Autores: Thatcher,Vernon E.
Brasacanthus sphoeroides gen. n.. sp. n. is described from the marine fish, Sphoeroides greeleyi (Steindachner), taken in Paranaguá Bay, Paraná State, Brazil. The new genus differs from Acanthocephalus Koelreuter, 1771, the nearest genus in the family Echinorhynchidae, by having very flat and variable lemnisci in both sexes and a uterine egg reservoir in the female. The species is characterized by its spherical body form and in having parallel or diagonal testes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acanthocephala; Fish parasite; Puffer parasite; Paraná; Brazil; South America.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000400024

Temnocephala lutzi Monticelli (Platyhelminthes, Temnocephalida) ectosymbiont on two species of Trichodactylus Latreille (Crustacea, Decapoda, Trichodactylidae) from southern Brazil
Provedor de dados: Zoologia
Autores: Amato,José F. R.; Amato,Suzana B.; Seixas,Samantha A.
Temnocephala lutzi Monticelli, 1913, ectosymbiont on brachyuran freshwater crabs of the genus Trichodactylus Latreille, 1828 is recorded for the first time in the State of Rio Grande do Sul, southern Brazil. Two hundred and seventy-nine crabs of two species were examined: 211 Trichodactylus panoplus (von Martens, 1869) and 68 Trichodactylus fluviatilis Latreille, 1828 of which 51 (24.17%) and 28 (41.17%) were positive for T. lutzi, respectively. Crabs of both species carried eggs fixed, exclusively, on the floor of the branchial chambers and/or on the lower side of the gills. Adult as well as young specimens were found inside and outside the branchial chambers. The temnocephalans were always devoid of body pigmentation, although they kept the red eye...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachyura; Ectocommensals; Neotropical region; Rio Grande do Sul; South America; Taxonomy.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000400038

Diet of crab-eating fox, Cerdocyon thous (Linnaeus) (Carnivora, Canidae), in a suburban area of southern Brazil
Provedor de dados: Zoologia
Autores: Pedó,Ezequiel; Tomazzoni,Ana C.; Hartz,Sandra M.; Christoff,Alexandre U.
The crab-eating fox, Cerdocyon thous (Linnaeus, 1766), is a small canid with twilight and nocturnal habits from savannas and forests of South America. In this study, we seasonally determined and quantified the diet of C. thous in Lami Biological Reserve, a conservation unit with 179.78ha situated in a suburban area in the municipality of Porto Alegre, southern Brazil. During the year 2000, we collected 80 fecal samples - 20 for each season - in two or three week sampling intervals, along trails inside the Reserve. Samples were dried in an oven for 24h at 60ºC, immersed in 70% alcohol, and prey items were identified using a stereomicroscope. The diet of the crab-eating fox was essentially carnivorous (87.62% composed by vertebrates), with seasonal variation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canids; Food habits; Rio Grande do Sul; Seasonality; South America.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000300005

Three new species of Maruina Müller (Diptera, Psychodidae) from Brazil
Provedor de dados: Zoologia
Autores: Bravo,Freddy.
Three new species of Maruina Müller, 1895 from Brazil are described, one species from northeastern, Bahia, and two from southeastern, one from Rio de Janeiro and the other from São Paulo.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: South America; Neotropical; Psychodinae.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000300017

A new Ectaga Walsingham (Lepidoptera, Oecophoridae) from southern South America
Provedor de dados: Zoologia
Autores: 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

Triplodon chodo, a new species of pearly fresh water mussel from the Amazon Basin (Mollusca: Bivalvia: Unionoida: Hyriidae)
Provedor de dados: Zoologia
Autores: Mansur,Maria C. D.; Pimpão,Daniel M.
A new species of the genus Triplodon Spix, 1827 is described based on shell samples collected on Rivers Jamari (Rondônia State) and Aripuanã (Amazonas State) from the Madeira River Basin; on the Amazon at Oriximiná and on the mouth of Tapajós River at Alter do Chão (Pará State). Triplodon chodo is a new species considered closely related to T. stevensi Lea, 1871, (described from the part of the River Essequibo which borders the Guianas). Triplodon chodo is distinguished from the latter by its smaller, lighter shell, the absence of a wing in the anterior region and by the delicate shape of the external sculpture, which is composed of minuscule nodules organized in rows that converge and crosses on the centre of the valves. The straight and vertical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prisodontini; South America; Taxonomy.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000100015

Aleochara pseudochrysorrhoa, a new species from southern Brazil (Coleoptera: Staphylinidae: Aleocharinae), with a complete checklist of Neotropical species of the genus
Provedor de dados: Zoologia
Autores: Caron,Edilson; Mise,Kleber M.; Klimaszewski,Jan.
The ectoparasitoid habit of larvae and the active predatory habit of adults of Aleochara Gravenhorst, 1802 established this group as natural fly regulators and important for ecological studies, biological control programs and forensic entomology. In the current study, a new aleocharine species, Aleochara pseudochrysorrhoa sp. nov., from southern Brazil, is described and its natural history is briefly discussed. The species has a robust body, uniformly dark-brown to black with apex of abdomen rust-brown, median lobe of male with expanded bulbus, sclerites of internal sac forming complex arrangement, and female with spermatheca L-shaped. Aleochara pseudochrysorrhoa sp. nov. may be considered to be closely related to the species belonging to the lustrica...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Forensic entomology; New name; Rove beetle; South America; Taxonomy.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000400022

Descrições e notas sobre Cerambycidae (Coleoptera) Sul-americanos
Provedor de dados: Zoologia
Autores: Martins,Ubirajara R.; Galileo,Maria Helena M.
New taxa described: Cerambycinae, Achrysonini-Ectenessa andrei, sp.n. (Brazil: Rio Grande do Sul); Lamiinae, Lamiini - Neoptychodes cosmeticus, sp.n. (Equador); Onciderini - Charoides pepoata, sp.n. (Bolívia); Venustus analogus, sp.n. (Colombia); Oncideres mirim, sp.n. (Brazil: Pará); Compsosomatini - Compsosoma monnei, sp.n. (Bolivia); Desmiphorini - Desmiphora auatinga, sp.n. (Ecuador); Iurubanga, gen.n., I. arixi, sp.n. (Brazil: Paraná, Santa Catarina); Acanthoderini -Acakyra, gen.n., A. iaguara, sp.n. (Colombia); Anisocerini - Phacellocera susua, sp.n. (Equador); Falsamblesthiini - Camixaima, gen.n., C. beraba, sp.n. (Equador); Calliini - Callisema iucaua, sp.n. (Peru); Lustrocomus, gen.n., L. paraensis, sp.n. (Brazil: Pará). Fredlanella, nom.n. is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerambycidae; Coleoptera; Neotropical; South America; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200001

Ancylidae (Gastropoda, Basommatophora) na América do Sul: sistemática e distribuição
Provedor de dados: Zoologia
Autores: Lanzer,Rosane.
The family Ancylidae is represented in South America by the genera: Gundlachia Pfeiffer, 1849, Ferrissia Walker, 1903, Burnupia Walker, 1912 and Laevapex Walker, 1903. The species are caracterized using the combination of shell features and radula by scanning electron microscope, shell muscle and mantle pigmentation. The conchometry is also presented, but it does not help to species identification. The distribution of G. crequi (Bavay, 1904), G. foncki (Philippi, 1866), G. philippiana (Biese, 1948), G. obliqua (Broderip &amp;amp; Sowerby, 1832), G. moricandi (Orbigny, 1837), G. concentrica (Orbigny, 1835), G. radiata (Guilding, 1828), G bakeri Pilsbry, 1913, G ticaga (Marcus &amp;amp; Marcus, 1962), F. gentilis Lanzer, 1991, B. ingae Lanzer, 1991, L. vazi...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ancylidae; Systematic; Distribution; South America.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100018

Two new spider mites (Acari, Prostigmata, Tetranychidae) from South America
Provedor de dados: Zoologia
Autores: Flechtmann,Carlos H.W.
Oligonychus viranoplos, sp.n. from a bamboo (Poaceae) from Piracicaba, São Paulo, Brasil and Eotetranychus vinealis, sp.n. from Vitis vinifera L. (Vitaceae) from Cerrito, Valle, Colombia, are described.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acari; New species; Bamboo; Vineyard; Spider mites; South America.
Ano: 1993
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751993000400017

Aegla rosanae Campos Jr., um novo sinônimo de Aegla paulensis Schmitt (Crustacea, Aeglidae)
Provedor de dados: Zoologia
Autores: Bond-Buckup,Georgina; Buckup,Ludwig.
The validity of Aegla rosanae Campos Jr., 1998 as a new species was analysed. On the basis of comparisons with Aegla paulensis Schmitt, A. rosanae was considered its junior synonym.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacea; Aegla; South America; Taxonomy.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000200008

Tovomita nebulosa (Clusiaceae), a new species from Cerro de la Neblina, Venezuela
Provedor de dados: Acta Amazonica
Autores: MARINHO,Lucas C.; LUJÁN,Manuel; FIASCHI,Pedro; AMORIM,André M.
ABSTRACT Although the number of recently described Tovomita species is relatively high, much more remains to be done, given that each new survey of representative Amazonian collections reveals many potentially undescribed taxa. In the treatment for Tovomita published in Flora of the Venezuelan Guayana, at least six distinct morphotypes did not match any previously described species. Here we recognize morphotype “D&amp;#8221; as a new endemic species from Cerro de la Neblina. Additionally, we provide an identification key to the Tovomita species in Venezuela.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon Forest; Clusioid clade; Malpighiales; Pico da Neblina; South America.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200149

Supplementary taxonomic description of Demidospermus pinirampi (Monogenoidea, Dactylogyridae), with a new host record and an expansion of its distribution range
Provedor de dados: Acta Amazonica
Autores: AGUIAR,Julio Cesar Cenci de; BUENO,Glauco Baptista Franco; SANTOS,Sonia Maria Cursino dos; ADRIANO,Edson Aparecido.
ABSTRACT During a survey conducted in the Lajeado Reservoir of the Tocantins River, in the state of Tocantins, Brazil, dactylogyrids were recovered from the gills of Pimelodina flavipinnis. Initial morphological analysis showed these dactylogyrids shared aspects of character with species of Demidospermus, with affinity to Demidospermus pinirampi, despite exhibiting differences with the original description by Kritsky et al. (1987) regarding the vagina, the base of the male copulatory organ and the shape and length of the bars. The analysis of the holotypes of D. pinirampi and its most morphologically close species, Demidospermus luckyi, revealed that these dactylogyrids were indeed D. pinirampi. This study therefore reports a new host and locality of...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: South America; Tocantins; Morphology; Parasite; Pimelodidae.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000400355

Amazolachesilla, a new genus of Eolachesillinae (Insecta: Psocodea: "Psocoptera": Lachesillidae) from Amazonas, Brazil
Provedor de dados: Acta Amazonica
Autores: Aldrete,Alfonso N. García; Mockford,Edward L.
Amazolachesilla, a new genus in Graphocaeciliini (Lachesillidae: Eolachesillinae), from Amazonas, Brazil, is here described and illustrated. It presents an autapomorphic clunial shelf and clunial projections, as well as a peculiar male epiproct, and paraprocts with a s clerotized longitudinal rod that makes it unique in the tribe.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Graphocaeciliini; Taxonomy; South America; Neotropics.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672011000400012

Plant succession in a forest on the Lower Northeast Slope of Serra Geral, Rio Grande do Sul, and Holocene palaeoenvironments, Southern Brazil
Provedor de dados: Acta Botanica Brasilica
Autores: Leal,Márcia Grala; Lorscheitter,Maria Luisa.
The study of plant succession provides information on vegetation dynamics of a region and, therefore, improves our understanding of the natural trends of present ecosystems. With this objective, plant succession based on palynology of a sediment profile in a swamp forest was studied on the Lower Northeast Slope of Serra Geral, Rio Grande do Sul. Samples were treated with HCl, HF, KOH and acetolysis; slides were mounted in glycerol-jelly. For each sample a minimum of 500 grains of pollen + pteridophyte and bryophyte spores was counted and other palynomorphs were counted in parallel. Tilia and Tilia Graph software were used to construct percentage and concentration diagrams, with three 14C datings. The results show a local water reservoir in the beginning of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Palynology; Palaeoecology; Plant migration; Quaternary; South America.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062007000100001

Palynological evidence of vegetation change during the last 10,000 years in the mid-valley of the Rio Doce, Brazil
Provedor de dados: Acta Botanica Brasilica
Autores: Fonseca-Silva,Fernanda Mara; Carvalho,Marcelo de Araujo; Ribeiro,Sérvio Pontes.
ABSTRACT In order to reconstruct the vegetation history of the last 10.000 years, palynological analyses were carried out using 17 sedimentary samples of a core drilled in Parque Estadual do Rio Doce (PERD-MG). Twenty-one species of fern spores, 52 species of pollen grains and six species of fungi were identified. Phase 1 (10.375 - 9.350 cal. years BP) is characterized by a low concentration and diversity of pollen grains and is thus interpreted as a fluvial system with the presence of coarse-grained sediments. Phase 2 (9.062 - 8.195 cal. Years BP) is interpreted as a transition from a fluvial to lacustrine environment. Phase 3 (7.905 - 4.785 cal years BP) is characterized by increased trend of palynomorph concentration, highlighted by a high abundance and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Holocene; Paleovegetation; Parque Estadual do Rio Doce (PERD); Pollen analysis; South America.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000100029

Tree species of South America central savanna: endemism, marginal areas and the relationship with other biomes
Provedor de dados: Acta Botanica Brasilica
Autores: Françoso,Renata D.; Haidar,Ricardo F.; Machado,Ricardo B.
Biological knowledge is important for guidance of conservation polices. In the Cerrado, an extremely diverse biome, the last synthesis of floristic knowledge has more than ten years. To understand the progress on the information, our aim was quantify the tree species of the Cerrado, and assess their distribution. We compiled 167 inventories and rapid surveys of tree species, corresponding to 625 sites. We accessed the species distributions in the Brazilian biomes, and estimated the number of species in the savannas of Cerrado using four algorithms. We observed a greater local richness in more central regions of the biome, but due to high beta diversity, more peripheral regions presented a greater cumulative richness. The Atlantic Forest was the most...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazilian flora; Cerrado; Endemic species; Floristic patterns; South America; Species distribution.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000100078

A triangular Eunotia (Bacillariophyceae) in southeastern Brazil: Eunotia trigona sp. nov.
Provedor de dados: Acta Botanica Brasilica
Autores: Fuhrmann,André; Metzeltin,Ditmar; Tremarin,Priscila Izabel.
We report a new diatom species for the Atlantic Forest of Brazil. The species, designated Eunotia trigona Fuhrmann, Metzeltin &amp;amp; Tremarin sp. nov., is also new to science. It was found on moss in the Itatiaia mountain range in the state of São Paulo. Among the Eunotia taxa, E. trigona is distinguished by its unusual (perhaps unique) triangular-shaped valve, similar to those found in a few species of the genera Staurosira and Staurosirella.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eunotiaceae; Itatiaia National Park; Neotropics; South America.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000400007

Reestablishment, new records, and a key for the species of Aspidosperma (Apocynaceae) from the Brazilian Amazon
Provedor de dados: Acta Botanica Brasilica
Autores: Pereira,Andreza Stephanie de Souza; Castello,Ana Carolina Devides; Simões,André Olmos; Koch,Ingrid.
ABSTRACT As a result of systematic study of the Neotropical genus Aspidosperma (Apocynaceae), we reestablish the species A. centrale and A. duckei, and report A. steinbachii and A. tambopatense as new records for Brazil. We provide taxonomic descriptions of these species along with plates, distribution maps, and information on their conservation status, habitat and phenology. We also provide an identification key for all the species of Aspidosperma from the Brazilian Amazon.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aspidospermeae; Distribution; Neotropics; South America; Taxonomy.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000100001

First record of Isachne ligulata (Poaceae: Micrairoideae) in Brazil and a key for the Brazilian species of the genus
Provedor de dados: Acta Botanica Brasilica
Autores: Rodrigues,Rodrigo S.; Filgueiras,Tarciso S.
ABSTRACT While performing a taxonomic revision of the Neotropical species of Isachne, analysis of herbarium collections revealed the occurrence of Isachne ligulata in Brazil. We provide a description and the first illustration of I. ligulata, along with comments on its ecology, distribution and morphological affinities with related South American species. We also provide an identification key for the Brazilian species of the genus.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Distribution; Grasses; Isachneae; Neotropics; South America.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000400700

Swerving as the escape strategy of Macrauchenia patachonica Owen (Mammalia; Litopterna)
Provedor de dados: Ameghiniana
Autores: Fariña,Richard A.; Blanco,R. Ernesto; Christiansen,Per.
The Lujanian megamammals (late Pleistocene of South America) show many palaeoautecological peculiarities. The present paper studies one of them, the locomotor habits of Macrauchenia patachonica Owen, through those morphological features related with its possible antipredation strategy. To avoid predation (especially by the sabre-tooth Smilodon Lund), this large litoptern seems to have been particularly adapted to swerving behaviour. This is suggested by the fact that its limb bones have indicators of higher transverse than anteroposterior strength (significantly so in the case of the femur), a feature which is also observed in modern swervers, and not so clearly in other fast running herbivores that do not use swerving so much.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Palaeoecology; Megafauna; Pleistocene; South America; Biomechanics; Locomotion.
Ano: 2005
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142005000400007

Pleistovultur nevesi gen. et sp. nov. (Aves: Vulturidae) and the diversity of condors and vultures in the South American Pleistocene
Provedor de dados: Ameghiniana
Autores: Alvarenga,Herculano; Brito,Guilherme R.R.; Migotto,Rafael; Hubbe,Alex; Höflibg,Elizabeth.
Pleistovultur nevesi, a new genus and species of a large Vulturidae is described from the Upper Pleistocene or beginning of the Holocene, based on a complete and well preserved right tibiotarsus from the Cuvieri cave deposits, one of the hundreds of caves of the Lagoa Santa region in Minas Gerais state, Brazil. Also described here is a distal half of a left tibiotarsus from Gruta dos Brejões, a cave in Morro do Chapéu, Bahia state, Brazil, which probably belongs to another not-yet-known genus and species of the Vulturidae. The described material, added to prior literature, is proof of the appreciable diversity of the Vulturidae during the Pleistocene in South America.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vulturidae; Pleistocene; South America; Condor; Pleistovultur nevesi; Caves.
Ano: 2008
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142008000300007

The "New Approach to Corystospermales" and the Antarctic Fossil Record: A Critique
Provedor de dados: Ameghiniana
Autores: Axsmith,Brian J.; Taylor,Edith L.; Taylor,Thomas N.
Much is now known about the Mesozoic pteridosperm order Corystospermales based on over seventy years of research. However, several concepts of corystosperm evolution have been proposed that avoid well-established phylogenetic methodology and arbitrarily discount evidence of the group from Antarctica. Here, we focus on the "New approach to Corystospermales" published by Artabe and Brea, which establishes a phylogeny for corystosperms based mainly on a restricted concept of anomalous wood anatomy in this group, and assumed relationships with cycads and medullosan pteridosperms. These authors also question evidence regarding attached corystospermalean organs from Antarctica. Based on a reconsideration of the Antarctic record, we reaffirm the evidence for a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antarctica; Corystospermales; Dicroidium; Gondwana; Phylogeny; South America; Triassic; Seed ferns.
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142007000100017

Ancient feeding, ecology and extinction of Pleistocene horses from the Pampean Region, Argentina
Provedor de dados: Ameghiniana
Autores: Sánchez,Begoña; Prado,José Luis; Alberdi,María Teresa.
To reconstruct the diet and habitat preference of fossil horses, we measured the carbon and oxygen isotope composition of 35 bone and tooth samples of Equus (Amerhippus) neogeus Lund, Hippidion principale (Lund), and Hippidion devillei (Gervais) from 10 different Pleistocene localities in the Pampean region (Argentina). To compare the three species by stratigraphic age, we divided the samples into three groups: lower Pleistocene, middle-late Pleistocene and latest Pleistocene. Samples of Hippidion devillei from the lower Pleistocene were more homogeneous, with &amp;#948;13C values ranging between -11.73 to -9.79&amp;#8240;. These data indicate a diet exclusively dominated by C3 plants. In contrast, Hippidion principale and Equus (Amerhippus) neogeus from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Equus (Amerhippus); Hippidion; Paleodiet; Ecology; Extinction; Pleistocene; Papean region; South America.
Ano: 2006
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142006000200012

Direct analysis of vicariance in Neotropical mayflies (Ephemeroptera)
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: MOLINERI,CARLOS; NIETO,CAROLINA; DOMÍNGUEZ,EDUARDO.
Abstract: The distribution of aquatic insects has been poorly explored in quantitative analyses aiming at the historical reconstruction of area relationships in the Neotropics. Ephemeroptera is an ancient group, characterized by its low vagility, and of high richness and endemicity in this region. Systematic knowledge of the group has enormously increased in the last decades, achieving a sufficient background to explore biogeographical historical patterns. Our aim is to reconstruct area history in the Neotropics using the rationale of Barrier biogeography (Hovenkamp protocol). We present eleven mayfly phylogenies, representing groups that evolved independently at least from the Jurassic (i.e., not a one-taxon history). With these groups, we conducted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Historical biogeography; South America; Neotropical; Phylogeny; Taxon history.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700625

Sensitivity of understorey bird species in two different successional stages of the lowland Atlantic Forest, Brazil
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: Loures-Ribeiro,Alan; Manhães,Marco A.; Dias,Manoel M.
The Atlantic Forest has a high destruction rate and there is little information available on some aspects of the neotropical bird biology. Changes in environment are important factors that affect the resources available to birds. We compared the species sensitivity level of understorey birds in two areas in distinct successional stages (primary and secondary sections). Two 100 ha plots of lowland Atlantic Forest were analysed between August and December 2006. Among 25 bird species recorded, thirteen had lower abundance in secondary forest, two in primary forest, and ten had not clear tendency. According to the criteria used, the percentages for species with low, and medium and high sensitivity to habitat change were 44% and 56%, respectively. The number of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Degradation; Neotropical birds; Point counts; South America; Tropical forest.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000300016

A review of the Quaternary Scelidotheriinae (Mammalia, Xenarthra, Tardigrada) from the Tarija-Padcaya basin, Bolivia
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: MIÑO-BOILINI,ÁNGEL R.; CARLINI,ALFREDO A.; ZURITA,ALFREDO E.; SOIBELZON,ESTEBAN; RODRÍGUEZ-BUALÓ,SANTIAGO M.
ABSTRACT The Mylodontidae Scelidotheriinae (Mammalia, Xenarthra, Tardigrada) are a diversified clade of South American fossil ground sloths, with a wide geographic distribution, especially in high and middle latitudes. According to the last revision, the Quaternary diversity includes the genera Scelidotherium, Catonyx, and Valgipes. The clade Scelidotheriinae is well represented in the Pleistocene of the Tarija-Padcaya basin, and the first mention of these ground sloths correspond to the middle of the XIX Century. Since then, several species (i.e., Scelidotherium tarijensis, Scelidodon tarijensis, Scelidotherium capellini) have been reported as inhabiting the Tarija-Padcaya basin during the Pleistocene. Despite the abundance of fossil records of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Catonyx; Diversity; Pilosa; Pleistocene; South America.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000400505

Extreme cultural persistence in eastern-central Brazil: the case of Lagoa Santa Paleaeoindians
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: ARAUJO,ASTOLFO G.M.; PUGLIESE JR.,FRANCISCO A.; SANTOS,RAFAEL O. DOS; OKUMURA,MERCEDES.
ABSTRACT Lapa do Santo rockshelter, a Paleoindian site located in Eastern-Central Brazil, presented two main occupations; one during Early Holocene (12,460 to 8700 cal BP), and a latter in Middle Holocene (5100 to 4200 cal BP). In spite of this 3600 year gap, the stratigraphy and general characteristics of the material culture did not indicate any visible discontinuity. This led us to hypothesise a reoccupation of the rockshelter by the same cultural group, tested by means of statistical analyses comparing lithics, bone artifacts, and faunal remains from early and middle Holocene layers. No significant differences were found, and our results indicate the presence of a cultural tradition that persisted for 8240 years, or roughly 412 generations.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cultural persistence; Cultural transmission; Lithic technology; Zooarchaeology; Paleoindian; South America.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502501

Late Pleistocene echimyid rodents (Rodentia, Hystricognathi) from northern Brazil
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: FERREIRA,THAIS M.F.; OLIVARES,ADRIANA ITATI; KERBER,LEONARDO; DUTRA,RODRIGO P.; AVILLA,LEONARDO S.
ABSTRACT Echimyidae (spiny rats, tree rats and the coypu) is the most diverse family of extant South American hystricognath rodents (caviomorphs). Today, they live in tropical forests (Amazonian, coastal and Andean forests), occasionally in more open xeric habitats in the Cerrado and Caatinga of northern South America, and open areas across the southern portion of the continent (Myocastor). The Quaternary fossil record of this family remains poorly studied. Here, we describe the fossil echimyids found in karst deposits from southern Tocantins, northern Brazil. The analyzed specimens are assigned to Thrichomys sp., Makalata cf. didelphoides and Proechimys sp. This is the first time that a fossil of Makalata is reported. The Pleistocene record of echimyids...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caviomorphs; Echimyidae; Fossil record; Quaternary; South America.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000300829

Distributional patterns of herbivore megamammals during the Late Pleistocene of South America
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: GALLO,VALERIA; AVILLA,LEONARDO S.; PEREIRA,RODRIGO C.L.; ABSOLON,BRUNO A.
The geographic distribution of 27 species of the South American megafauna of herbivore mammals during the Late Pleistocene was analyzed in order to identify their distributional patterns. The distribution of the species was studied using the panbiogeographical method of track analysis. Six generalized tracks (GTs) and two biogeographic nodes were obtained. The GTs did not completely superpose with the areas of open savanna present in Pleistocene, nor with the biotic tracks of some arthropods typical of arid climate, indicating that these animals avoided arid environment. Overall, the GTs coincided with some biogeographic provinces defined on the basis of living taxa, indicating that certain current distributional patterns already existed in Pleistocene....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Distributional patterns; Historical Biogeography; Panbiogeography; Megafauna; Late Pleistocene; South America.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200533

An overview of the appendicular skeletal anatomy of South American titanosaurian sauropods, with definition of a newly recognized clade
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: RIGA,BERNARDO J. GONZÁLEZ; LAMANNA,MATTHEW C.; OTERO,ALEJANDRO; DAVID,LEONARDO D. ORTIZ; KELLNER,ALEXANDER W.A.; IBIRICU,LUCIO M.
Abstract: In the last two decades, the number of phylogenetically informative anatomical characters recognized in the appendicular skeleton of titanosaurian sauropod dinosaurs has increased dramatically with the discovery of new and comparatively complete specimens. Here we provide an overview of the appendicular skeletal morphology of South American titanosaurs and discuss its significance for phylogenetic reconstruction. The appendicular skeletal diversity of South American titanosaurs is substantially greater than was initially appreciated. Moreover, some regions of the appendicular skeleton, such as the pes, exhibit remarkable variability in form. Multiple synapomorphies of Titanosauria and the less inclusive clades Lithostrotia and Saltasauridae...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Titanosauria; South America; Appendicular skeleton; Osteology; Phylogeny; Colossosauria.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000400514

Palynological analysis of Dennstaedtiaceae taxa from the Paranaense Phytogeografic Province that produce monolete spores and its systematic implications (I): Blotiella lindeniana , Histiopteris incisa and Paesia glandulosa
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: YAÑEZ,AGUSTINA; MARQUEZ,GONZALO J.; MORBELLI,MARTA A.
ABSTRACT The genera of Dennstaedtiaceae have sporophytes with very different morphological characteristics between each other, and this feature has made difficult the systematic circumscription of the family. This reason makes necessary the study of new characters that allow a better understanding of the relations within the group. The spore morphology and wall structure of Blotiella lindeniana, Histiopteris incisa and Paesia glandulosa from the Paranaense Phytogeographic Province were studied using light microscope, and scanning and transmission electron microscope. The exospore has two layers and, according to the species, the exospore surface bears pila, echinae, verrucae, bacula and tubercles. The perispore has two or three layers and its surface is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ferns; Morphology; South America; Sporoderm; Ultrastructure.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602731

Late Pleistocene carnivores (Carnivora: Mammalia) from a cave sedimentary deposit in northern Brazil
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: RODRIGUES,SHIRLLEY; AVILLA,LEONARDO S.; SOIBELZON,LEOPOLDO H.; BERNARDES,CAMILA.
The Brazilian Quaternary terrestrial Carnivora are represented by the following families: Canidae, Felidae, Ursidae, Procyonidae Mephitidae and Mustelidae. Their recent evolutionary history in South America is associated with the uplift of the Panamanian Isthmus, and which enabled the Great American Biotic Interchange (GABI). Here we present new fossil records of Carnivora found in a cave in Aurora do Tocantins, Tocantins, northern Brazil. A stratigraphical controlled collection in the sedimentary deposit of the studied cave revealed a fossiliferous level where the following Carnivora taxa were present: Panthera onca, Leopardus sp., Galictis cuja, Procyon cancrivorus, Nasua nasua and Arctotherium wingei. Dating by Electron Spinning Resonance indicates that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carnivora; Fossil record; Pleistocene; South America.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000401641

Detection of areas of endemism on two spatial scales using Parsimony Analysis of Endemicity (PAE): the Neotropical region and the Atlantic Forest
Provedor de dados: Biota Neotropica
Autores: Sigrist,Mário Sérgio; Carvalho,Claudio José Barros de.
An important biological challenge today is the conservation of biodiversity. Biogeography, the study of the distribution patterns of organisms, is an important tool for this challenge. Endemism, the co-occurrence of several species unique to the same area, has important implications for the preservation of biodiversity, since many areas of endemism are also areas with large human impact. More rigorously defined, areas of endemism are historical units of distributional congruence of monophyletic taxa. These areas often assumed to be due to nonrandom historical events that favored conditions associated with high rates of speciation. Thus, understanding endemism and the delimitation of endemic areas has important implications for conservation. Today, most...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Historical biogeography; Endemism; PAE; South America.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000400002

Addisonia enodis (Vetigastropoda: Lepetelloidea) associated with an elasmobranch egg capsule from the South Atlantic Ocean and the discovery of the species from deep waters off northeastern Brazil
Provedor de dados: Biota Neotropica
Autores: Lima,Silvio Felipe Barbosa; Simone,Luiz Ricardo Lopes; Guimarães,Carmen Regina Parisotto.
Abstract A gastropod specimen of the subfamily Addisoniinae Dall, 1882 is reported here for the first time associated with an elasmobranch egg capsule from the South Atlantic Ocean. A specimen of Addisonia enodis Simone, 1996 was found living inside an egg capsule of Atlantoraja castelnaui (Miranda Ribeiro, 1907) (Arhynchobatidae Fowler, 1934) from shallow waters off southeastern Brazil. Previous studies have reported the association of members of the genus Addisonia Dall, 1882 only with the egg capsules of sharks from the family Scyliorhinidae Gill, 1862 and skates from the family Rajidae de Blainville, 1816. Other specimens of A. enodis are also here reported to occur off northeastern Brazil based on shells found in deep waters off the state of Sergipe,...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Gastropoda; Addisoniidae; Addisonia excentrica; South America; Deep sea.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000300501

New species of Temnocephala (Platyhelminthes, Temnocephalida) ectosymbiont on vulnerable species of aeglids (Crustacea, Anomura) from the Neotropical Region
Provedor de dados: Biota Neotropica
Autores: Seixas,Samantha Alves; Dametto,Norton; Périco,Eduardo.
Abstract: A new species of the genus Temnocephala Blanchard, 1849 from southern Brazil was found on two species of anomuran crustaceans, Aegla spinipalma Bond-Buckup &amp; Buckup, 1994 and Aegla grisella Bond-Buckup &amp; Buckup, 1994, the latter classified as a vulnerable species by the "Lista de Referência da Fauna Ameaçada de Extinção no Rio Grande do Sul. Decreto no 41.672, de 11 junho de 2002". The crustaceans were collected from a tributary creek of the Forqueta river, Perau de Janeiro, Arvorezinha and a tributary creek of the Fão river, Pouso Novo, Rio Grande do Sul, Brazil; both localities belong to the Sub-Basin of Forqueta River. The new species differs from seven other temnocephalans epibionts on Aegla Leach, 1820, by having the following...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacean; Ectosymbiont; South America; Symbiosis; Taxonomy.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000400203

Diversity of cetaceans as tool in monitoring environmental impacts of seismic surveys
Provedor de dados: Biota Neotropica
Autores: Parente,Cristiano Leite; Araújo,Janaína Pauline de; Araújo,Maria Elisabeth de.
New information about the effects of seismic surveys on cetaceans is causing increasing concern about the impact of this type of activity on marine life. The effects described include behavioral responses and changes in vocalization patterns, diversion of migratory routes, damage to the auditory system, and an increase in strandings. Although such effects could affect the diversity of species in areas where seismic research has been carried out, there is no scientific information on this subject. This study aims to evaluate the relationship between seismic surveys, oceanographic data and diversity of cetaceans recorded in Brazil following the stepping up of seismic survey activities between 1999 and 2004. The study is based on oceanographic data from the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Noise impact; Seismic survey; Diversity of cetaceans; South America.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000100007

Range extension of Boeckella bergi Richard, 1897 (Crustacea: Copepoda: Centropagidae), with comments on the taxonomy of the species
Provedor de dados: Biota Neotropica
Autores: Previattelli,Daniel; Perbiche-Neves,Gilmar; Menu Marque,Silvina; Rocha,Carlos Eduardo Falavigna da.
We present new records of Boeckella bergi at several water bodies in Argentina and Brazil. Within these records the northernmost and southernmost limits of occurrence of B. bergi in South America are included. The ample range of distribution is consistent with former studies, but it is more extensive than previously known. Observations on habitat preferences are also made. This species is tolerant to temperate climate conditions in this region of South America, with wide amplitude of temperature between summer and winter seasons, and irregular patterns of precipitation.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biogeography; Distribution range; Freshwater; Copepoda; South America; Zooplankton.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000300101

Body size and extinction risk in Brazilian carnivores
Provedor de dados: Biota Neotropica
Autores: Forero-Medina,German; Vieira,Marcus Vinícius; Grelle,Carlos Eduardo de Viveiros; Almeida,Paulo Jose.
Because extinctions are not random across taxa, it is important for conservation biologists to identify the traits that make some species more vulnerable. Factors associated with vulnerability include small geographical ranges, low densities, high trophic level, "slow" life histories, body size, and tolerance to altered habitats. In this study we examined the relationship of body size, reproductive output, longevity, and extinction risk for carnivores occurring in Brazil. We used generalized linear models analyses on phylogenetically independent contrasts to test the effect of body size alone, and the combined effect of body size, litter size and longevity on extinction risk. Body size appeared in the two best models according to the selection criteria...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carnivores; Independent contrasts; Longevity; Reproductive output; South America; Vulnerability to extinction.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000200004

Occurrence of sea turtles during seismic surveys in Northeastern Brazil
Provedor de dados: Biota Neotropica
Autores: Parente,Cristiano Leite; Lontra,Juliana Doyle; Araújo,Maria Elisabeth de.
There are seven species of sea turtles around the world. Among these, five visit the northeast coast of Brazil to reproduce and feed. These sea turtles are impacted by human activity and need conservation measures. The seismic survey is one of these activities due to its high intensity and low frequency sound emissions in the marine environment. Records of sea turtles during seismic surveys in shallow waters of the northeast of Brazil between 2002 and 2003 are presented in this study with some discussion about the effectiveness of the monitoring procedures. Three species of sea turtle were recorded within the seismic survey areas. The Chelonia mydas species was the most commonly sighted turtle. There was only one record of Caretta caretta and Lepidochelys...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sea turtles; Seismic survey; Sea-life surveys; South America; Northeastern Brazil.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032006000100004

New records of Leptophis ahaetulla ahaetulla (Serpentes, Colubridae) for Venezuela, Colombia and the placement of L. a. copei into the synonymy of L. a. ahaetulla
Provedor de dados: Biota Neotropica
Autores: Albuquerque,Nelson Rufino de.
The taxonomic validity of Leptophis ahaetulla copei is assessed. This subspecies is distinct from the nominal subspecies on the basis of differences in the number of ventral scales, maxillary teeth and dorsal coloration. However, comparison of its type specimens with specimens of L. a. ahaetulla revealed that L. a. copei is a junior synonym of the latter. In addition, the distribution of L. a. ahaetulla is expanded from Brazil to southwestern Venezuela and southern Colombia.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leptophis ahaetulla; Taxonomy; Distribution; South America.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000400035

Distribution extension and sympatric occurrence of Gracilinanus agilis and G. microtarsus (Didelphimorphia, Didelphidae), with cytogenetic notes
Provedor de dados: Biota Neotropica
Autores: Geise,Lena; Astúa,Diego.
Gracilinanus microtarsus, from the Atlantic Forest and G. agilis, widespread in central Brazil in the Cerrado and in the northeastern Caatinga are two small Neotropical arboreal opossum species not frequently recorded in simpatry. Here we report eight G. agilis specimens from three localities and 17 G. microtarsus, from 10 localities, all in Minas Gerais, Rio de Janeiro and Bahia states. Species proper identification followed diagnostic characters as appearance of dorsum pelage, ocular-mark, ears and tail lengths and size proportion of the posteromedial vacuities in cranium. Chromosomes in metaphases of five specimens were obtained for both species. Our records extend the previous known geographical distribution of G. microtarsus to Chapada Diamantina, in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: South America; Neotropical marsupials; Karyotypes; Habitat use.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000400030

A new synonym for Micropholis gardneriana (Sapotaceae) with complete description, anatomy and distribution notes
Provedor de dados: Biota Neotropica
Autores: Ferreira,Angélica Cândida; Araújo,Josiane Silva; Almeida Jr,Eduardo Bezerra de; Zickel,Carmen Silvia.
Abstract: In the present work, we synonymize Micropholis compta under M. gardneriana due to the overlap of morphoanatomical characters and the absence of distinctive attributes, verified during taxonomic and anatomical study of the genus Micropholis for Brazil. This study provides an updated description of M. gardneriana, including macro- and micro-morphological data, a distribution map, and comments on conservation status, ecological and taxonomy.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Chrysophylloideae; Leaf anatomy; Neotropics; South America; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100501

Ichthyofauna of the upper Juruena river on Chapada dos Parecis, Mato Grosso, Brazil
Provedor de dados: Biota Neotropica
Autores: Ohara,Willian Massaharu; Loeb,Marina Vianna.
Abstract The fishes herein included were collected in four small streams of the upper rio Tapajós basin. Through fieldwork carried out in 2011, 2013 and 2014 during the low water season 1.728 specimens belonging to 22 species distributed in 11 families, and five orders were captured. Characidae was the most representative family both in number of species and specimens captured. The most abundant species were Hyphessobrycon melanostichos, H. hexastichos, and H. notidanos. Five species are recognized as new, and four as endemic to the upper rio Tapajós basin. This study represents the first fish inventory for the region and will provide valuable information for the conservation of the poorly known diversity of fishes of the Chapada dos Parecis, in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: South America; Neotropical fish; Amazon; Endemism.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000400302

Occurrence of the freshwater jellyfish Craspedacusta sowerbii (Lankester, 1880) (Hydrozoa, Limnomedusae) in a calcareous lake in Mato Grosso do Sul, Brazil
Provedor de dados: Biota Neotropica
Autores: Silva,William Marcos; Roche,Kennedy Francis.
The occurrence of the freshwater jellyfish Craspedacusta sowerbii (=sowerbyi) Lankester, 1880 was recorded in April 2006 in the Lagoa Misteriosa water body, a calcareous lake (doline) in Mato Grosso do Sul State, Brazil. Only Rotifera composed the zooplankton community was composed only of Rotifera and the environment was meso-eutrophic system. The nomenclature of C. sowerbii is discussed with regard to the use of the correct spelling and an alternative one. The distributions of C. sowerbii in Brazil include eight states and in South America the distribution includes four countries.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Craspedacusta sowerbii (=sowerbyi); Calcareous lake; Freshwater jellyfish; Brazilian centre-west; South America.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000100028

Range extension of the Peale's Free-tailed Bat Nyctinomops aurispinosus (Molossidae) in Brazil
Provedor de dados: Biota Neotropica
Autores: Bianconi,Gledson Vigiano; Gregorin,Renato; Carneiro,Daniel Carvalho.
There is a lack of knowledge of the biology and distribution of Nyctinomops aurispinosus. Herein, we report the southernmost record of this species, from the city of Curitiba (25° 25' S and 49° 15' W, 920 m), state of Paraná, Brazil, and summarize its distribution in South America.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chiroptera; Distribution; Molossidae; New record; South America.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000200026

First occurrences of the greater bonneted Eumops perotis (Molossidae) in the State of Paraná and synthesis of the known records for Brazil
Provedor de dados: Biota Neotropica
Autores: Suckow,Urubatan Moura Skerratt; Bianconi,Gledson Vigiano; Parolin,Lays Cherobim; Lima,Isaac Passos.
Eumops perotis has just a few confirmed records in South America and an uneven distribution throughout the continent. In this paper, we show the first occurrence of this molossid in the State of Paraná, Southern Brazil and summarize all the known localities for the country.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chiroptera; Molossidae; Distribution; New records; South America.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000300039

Three new mosses records from the Andes of northwestern Argentina
Provedor de dados: Boletín de la Sociedad Argentina de Botánica
Autores: Cano,María J; Alonso,Marta.
Two mosses are newly reported for Argentina based on recent collections from Salta province: Aligrimmia peruviana R.S. Williams and Conostomum cleistocarpum Herzog. Hitherto, they were considered endemic to Bolivia and Peru, respectively. In addition, Crossidium squamiferum (Viv.) Jur., a species distributed in Europe, North America, Mexico, Asia, North Africa, and Macaronesia, is here reported for the first time in South America.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aligrimmia; Conostomum; Crossidium; Distribution; Flora; Salta; South America.
Ano: 2017
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722017000200006

New records of freshwater Algae and Cyanobacteria from mountain streams of Córdoba (Argentina)
Provedor de dados: Boletín de la Sociedad Argentina de Botánica
Autores: Daga,Claudia; Soteras,Florencia; Daniele,Graciela M; Dominguez,Laura S.
Constant collection surveys of freshwater Algae and Cyanobacteria in central Argentina streams have revealed new identities. This study reports for the first time six species for Córdoba Province and five for Argentina. Biodiversity description of the streams of central Argentina is crucial for the development of conservation activities. In this study the record of new species for this region and for Argentina highlights the relevance of further research to help improving knowledge of the diversity and ecology in this hydrographic system.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Rivers; South America.
Ano: 2014
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722014000400002

Calydorea minima (Iridaceae, Tigridieae) a new species from South America
Provedor de dados: Boletín de la Sociedad Argentina de Botánica
Autores: Roitman,Germán; Castillo,Alberto.
Calydorea minima (Iridaceae, Tigridieae) is described from stony grasslands of northern, Argentina and Paraguay. The new species resembles Calydorea azurea , but it can be easily distinguished by its smaller habit (10- 15 cm vs. 25- 35 cm ), its smaller flowers with acute tepals (1.5- 2.2 cm diameter vs. 4.4- 5.3 cm diameter), and by its linear extremely narrow leaves (0.5- 0.7 mm vs 3 a 6 mm wide). A key, to identify the species of the genus from Argentina, Paraguay and Uruguay is provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Iridaceae; Tigridieae; Calydorea; South America.
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722007000200018

The genus Stylosanthes (Fabaceae, Papilionoideae, Dalbergieae) in South America
Provedor de dados: Boletín de la Sociedad Argentina de Botánica
Autores: Vanni,Ricardo O.
The papilionoid genus Stylosanthes Sw. includes about 50 spp. distributed world wide in the tropics, approximately half of them grow in South America.The present study focuses on South American Stylosanthes. Based on examinations of herbarium specimens, as well as field observations, a total of 25 taxa (23 spp. and 2 varieties) are here described and identified with a key. Most of the species have been found to be more widely distributed than expected from the previous taxonomic literature, and the genus appears to be mainly concentrated in Brazil and Paraguay. Stylosanthes leiocarpa Vogel is new to the flora of Argentina and the presence of S. nervosa J. F. Macbr. is confirmed in Argentina. The nomenclature of S. guianensis (Aubl.) Sw. is analyzed....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leguminosae; South America; Stylosanthes; Taxonomy; Distribution; Nomenclature.
Ano: 2017
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722017000300012

Fruit anatomy of species of Solanum sect. Torva (Solanaceae)
Provedor de dados: Boletín de la Sociedad Argentina de Botánica
Autores: Chiarini,Franco E.; Moyetta,Natalia R.; Barboza,Gloria E.
The mature fruits of 10 South American species of Solanum sect. Torva were studied. Cross and longitudinal microtome sections, stained with astra blue/basic fuchsin, were made for microscopic examination. All species present an epidermis formed by a unistrate layer of small, isodiametric cells, with dense content and cellulosic walls. Immediately below, a hypodermis is always found, consisting of a well-defined layer of lignified cells with a single calcium oxalate crystal occupying the whole lumen of each cell. This is followed by one layer of cellulosic, isodiametric cells with dense cytoplasm and then several collenchymatous layers, sometimes with sclerified cell walls. The mesocarp comprises two zones histologically differentiated: an external one...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Berry; Dispersal syndrome; Pericarp; Solanum subgen. Leptostemonum; South America.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722010000200004

A dorsal fold in Gymnura micrura (Bloch and Scheneider, 1801) (Chondrichthyes: Gymnuridae)
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: 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 &amp;amp; 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

Prediction of colonization by macrophytes in the Yaciretá reservoir of the Paraná River (Argentina and Paraguay)
Provedor de dados: Brazilian Journal of Biology
Autores: NEIFF,J. J.; POI DE NEIFF,A. S. G.; PATIÑO,C. A. E.; BASTERRA DE CHIOZZI,I.
The potential colonization by anchored plants (PCAP) and the potential areas for initial colonization of free floating plants were estimated during the early filling phase for the Yaciretá reservoir. In order to obtain the PCAP, the observed maximum depth of colonization of the anchored macrophytes before impoundment and the hypsographic curves were used. The species inhabiting the pre-impoundment area were classified according to the different bioforms before the inclussion in the analysis. The areal extent of PCAP (from depths between 0-4 m) could reach 275 km² at 76 m above sea level (current water level), whereas at 82 m above sea level (final filling level) the littoral zone will be increased by about 21.5%. The potential area for geophytes was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tropical rivers; Impounding reservoirs; South America; Potential macrophytes colonization; Reservoirs.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000400011

Hepatotropic viruses in the Brazilian Amazon: a health threat
Provedor de dados: Brazilian Journal of Infectious Diseases
Autores: Paraná,Raymundo; Vitvitski,Ludmila; Pereira,Joao Eduardo.
Viral Hepatitis B, C and D are a serious public health problem in Brazil and other South American countries, mainly in the Amazonian region. Despite the paucity of clinical and epidemiological studies, a high prevalence of Hepatitis viruses has often been described in this area. Genotype F of Hepatitis B and Genotype III of Hepatitis D have been found to be quite prevalent in this area and preliminary studies have implicated both genotypes in carcinogenesis and peculiar pathogenic liver mechanisms. Initial epidemiological studies have further demonstrated a high prevalence of Hepatitis C in the western Brazilian Amazon. The geographic, cultural, ethnic and environmental aspects of this region may favor hepatotropic virus dissemination, as well as rendering...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazil; Amazonian; Hepatitis viruses; South America.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000300017

Isolation and characterization of canine parvovirus type 2c (CPV-2c) from symptomatic puppies
Provedor de dados: Brazilian Journal of Microbiology
Autores: Puentes,R; Eliopulos,N; Pérez,R; Franco,G; Sosa,K; Bianchi,P; Furtado,A; Hübner,S.O.; Esteves,P.A.
Canine parvovirus type 2 (CPV-2) is a leading cause of diarrhea in puppies in several parts of the world. In this study CPV-2 was detected and recovered from puppies showing clinical disease from Montevideo, Uruguay. Samples were processed and used to infect CRFK and MDCK cells in order to isolate the virus. Out of twelve, two samples were positive for CPV-2. A genomic region of 583 bp was amplified and the molecular characterization was performed by sequencing, phylogenetic analysis and Restriction Fragment Length Polymorphism (RFLP). Two isolated viruses (UY1 and UY2) were CPV-2c-like viruses. The comparison between the cytophatic effect (CPE) of CPV-2 (vaccinal virus) and CPV-2c (isolated virus) on primary canine cells cultures and on CRFK line cells,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canine Parvovirus 2c; Isolation; Molecular characterization; South America.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000300022

The diversity of aquatic Hyphomycetes in South America
Provedor de dados: Brazilian Journal of Microbiology
Autores: Schoenlein-Crusius,Iracema Helena; Grandi,Rosely Ana Piccolo.
Aquatic Hyphomycetes, also named Ingoldian or freshwater fungi, constitute a group of anamorphic fungi that are typically aquatic, producing tetraradiate, sigmoid or spherical conidia on submerged plant debris (leaf litter, petioles, bark, etc.). Mainly occurring in lotic systems, these fungi are considered to be one of the most active groups of organisms in the decomposition of leaf litter, and play a crucial role in the trophic chain. In South America, aquatic Hyphomycetes are mentioned for Argentina, Brazil, Chile, Ecuador, Peru and Venezuela, totalizing the report of about 90 species. Almost all studies are taxonomical, some with proper drawings and complete descriptions, but no keys have been provided yet, nor there is a specific culture collection...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anamorphic fungi; Aquatic Hyphomycetes; Biodiversity; Brazil; South America.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000300001

A Ricardian Analysis of the Impact of Climate Change on South American Farms
Provedor de dados: Chilean Journal of Agricultural Research
Autores: Niggol Seo,S; Mendelsohn,Robert.
This study estimates the impact of climate change on South American agriculture taking into account farm adaptations. The study used a Ricardian analysis of 2300 farms to explore the effects of global warming on land values. In order to predict climate change impacts for this century, were examined climate change scenarios predicted by three Atmospheric Oceanic General Circulation Models (AOGCM): the Canadian Climate Center (CCC), the Centre for Climate System Research (CCSR), and the Parallel Climate Model (PCM) models. Several econometric specifications were tested, and five separate regressions were run: for all farms, small household farms, large commercial farms, rainfed farms, and irrigated farms. Farmland values will decrease as temperature...
Tipo: Journal article
Palavras-chave: Climate change; Agriculture; Ricardian approach; South America.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000100007

White muscle disease in three selenium deficient beef and dairy calves in Argentina and Uruguay
Provedor de dados: Ciência Rural
Autores: Rodriguez,Alejandro Martín; Schild,Carlos Omar; Cantón,Germán José; Riet-Correa,Franklin; Armendano,Joaquín Ignacio; Caffarena,Rubén Darío; Brambilla,Emilio César; García,Juan Agustín; Morrell,Eleonora Lidia; Poppenga,Robert; Giannitti,Federico.
ABSTRACT: White muscle disease (WMD), nutritional myodegeneration or enzootic muscular dystrophy, is a nutritional condition associated with selenium and/or vitamin E deficiency in ruminants. These elements are constituents of the major body antioxidant systems. Depletion of selenium results in oxidative damage to cardiac and skeletal muscle cells, resulting in myodegeneration and myonecrosis, typical lesions of WMD. Selenium deficiency is common in South America, but WMD is underreported. This research describes clinical, biochemical and pathological findings in two episodes of WMD associated with selenium deficiency in beef and dairy calves in Argentina and Uruguay with concurrent copper deficiency in one of them, which resulted in spontaneous calf...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mortality; Cardiac failure; Mineral deficiencies; Nutritional myopathy; South America.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000500550

First record of Tyrophagus putrescentiae (Schrank) (Acari: Acaridae) in soybean plants under no tillage in Minas Gerais, Brazil
Provedor de dados: Ciência Rural
Autores: Oliveira,Charles Martins de; Návia,Denise; Frizzas,Marina Regina.
Tyrophagus putrescentiae (Schrank) is a mite species of economic and medical-veterinary importance, usually found associated with stored products. Presence of this mite was observed in the stems of soybean [Glycine max (L.) Merr.] plants originated from a under non tillage commercial crop in 2003/2004, in the municipal district of Unaí, State of Minas Gerais, Brazil. This is the first record of T. putrescentiae occurring in soybean plants under field conditions in the world.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mite; Glycine max; Astigmata; South America.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782007000300043