scholarly journals Studies on a small collection of planorbid snails from southern south America

1969 ◽  
Vol 3 (5) ◽  
pp. 265-267
Author(s):  
Frederico S. Barbosa ◽  
Dalva A. Mello
Keyword(s):  
South America ◽  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Porto Alegre ◽  
Southern South America ◽  
Negative Results ◽  
Small Collection

Snails belonging to Biomphalaria genus were collected from some regions of Southern South America as follows: Resistencia, province of Chaco, Argentina; Assumpcion, Paraguay; Department of Maldonado of Caneloni, Uruguay; and Pôrto Alegre, Rio Grande do Sul, Brazil. The material was classified as Biomphalaria peregrina (Orbigny) twice from Uruguay and once in Brazil; B. tenagophila (Orbigny), from Argentina and Brazil; and B. straminea (Dunker) in Paraguay. Negative results were obtained from the exposition of the abone refered snail specimens to miracidia of S. mansoni from Pernambuco, Brazil.

scholarly journals Squamata, Serpentes, Micrurus silviae Di-Bernardo, Borges-Martins and Silva, 2007: presence confirmation in Paraguay

Check List ◽  
2011 ◽  
Vol 7 (6) ◽  
pp. 809 ◽  
Author(s):  
Pier Cacciali ◽  
Daniel Espínola ◽  
Silvia Centrón Viñales ◽  
Irene Gauto Espínola ◽  
Hugo Cabral
Keyword(s):  
South America ◽  
Rio Grande ◽  
South American ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Southern South America ◽  
Natural Grassland

Micrurus silviae is a coralsnake with a triadal pattern, and is one of the eight species found in southern South America. In Paraguay there are six taxa recorded: M. altirostris, M. baliocoryphus, M. frontalis, M. pyrrhocryptus, M. corallinus, and M. lemniscatus carvalhoi. Here we present a record of M. silviae, an additional and seventh species for the country. Previously M. silviae was known only from Rio Grande do Sul state, in southern Brazil. The specimen was found in South American Mesopotamian Grasslands ecoregion, with natural grassland in the Department of Itapúa.

scholarly journals Occurrence of Cabassous tatouay (Cingulata, Dasypodidae) in Rio Grande do Sul and its potential distribution in southern Brazil

2015 ◽  
Vol 105 (2) ◽  
pp. 235-241 ◽  
Author(s):  
Stefan V. de Oliveira ◽  
Luiz L. C. Corrêa ◽  
Felipe B. Peters ◽  
Fábio D. Mazim ◽  
Felipe M. Garcias ◽  
...  
Keyword(s):  
South America ◽  
Rare Species ◽  
Ecological Niche ◽  
Potential Distribution ◽  
Ecological Niche Modeling ◽  
Rio Grande ◽  
Niche Modeling ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Southern South America

ABSTRACT Cabossous tatouay Desmarest, 1804 is considered a rare species in southern South America, and Rio Grande do Sul State, Brazil, records of the species are scarce and inaccurate. This study reports 40 localities for C. tatouay, and provides a map of the species' potential distribution using ecological niche modeling (ENM). The ENM indicated that in this region C. tatouay is associated with open grasslands, including the areas of "Pampas" and the open fields in the highlands of the Atlantic Forest. This study contributes to the information about the greater naked-tailed armadillo in southern Brazil, and provides data key to its future conservation.

scholarly journals Crustacea Isopoda collected during the Oc/S "Almirante Saldanha" cruises in southern South America: I. Species of Serolis (Flabellifera, Serolidae)

1976 ◽  
Vol 25 (1) ◽  
pp. 113-130 ◽  
Author(s):  
Plínio Solhes Moreira
Keyword(s):  
South America ◽  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Southern Limit ◽  
Southern South America ◽  
First Time

This paper reports on part of the species of the marine isopod genus Serolis (Crustacea, Flabellifera, Serolidae) collected from benthic stations performed during one of the cruises of the Brazil ian Navy Oc/S "Almirante Saldanha" along southern South America. The species reported are Serolis polccris Richardson, 1911, Serolis elliptica Sheppard, 1933, Serolis uaperta Moreira, 1971, and Serolis foresti Bastida & Torti, 1970. A complete synonymy is given for each of these species, as well as the main distinctive characteristics enabling its ready recognition. Some remarks are provided on features not lengthned treated on previous accounts. The geographi cal distribution of all named taxa is given. Serolis uaperta is for the first time reported from off State of Rio Grande do Sul (Brazil) and Uruguay, extending considerably southernwards its southern limit of distribution. Both Serolis foresti and Serolis elliptica are also for the first time recorded from off Uruguay.

Novelties in Croton (Euphorbiaceae) from southern South America

Phytotaxa ◽  
2021 ◽  
Vol 496 (2) ◽  
pp. 189-194
Author(s):  
EDUARDO VALDUGA ◽  
MARTIN MOLZ ◽  
INÊS CORDEIRO ◽  
JOÃO IGANCI
Keyword(s):  
South America ◽  
New Record ◽  
Rio Grande ◽  
Taxonomic Revision ◽  
Field Work ◽  
The State ◽  
Rio Grande Do Sul ◽  
Type Specimens ◽  
Southern South America ◽  
Moist Forest

During a taxonomic revision of the genus Croton from the Pampas grasslands, some necessary taxonomic adjustments were identified and are here presented. The study was based on new collections, field work and analyses of protologues and type specimens. We treat C. allemii as a synonym of C. triqueter, C. stenotrichus as a synonym of C. hilarii, and we designate a lectotype for C. stenotrichus. Croton lombardianus is newly reported for Brazil and C. macrobothrys as a new record for the Atlantic Moist Forest in the state of Rio Grande do Sul. Updated information on the geographic distributions of these species is also provided. 

scholarly journals New records, distribution and status of six seabird species in Brazil

2010 ◽  
Vol 100 (4) ◽  
pp. 379-390 ◽  
Author(s):  
Rafael Antunes Dias ◽  
Carlos Eduardo Agne ◽  
Dimas Gianuca ◽  
Andros Gianuca ◽  
André Barcellos-Silveira ◽  
...  
Keyword(s):  
South America ◽  
New Records ◽  
Rio Grande ◽  
Brazilian Coast ◽  
Rio Grande Do Sul ◽  
Seabird Species ◽  
Southern South America ◽  
Eastern Brazil ◽  
Trindade Island ◽  
Chlidonias Niger

Distribution records of poorly-known species are currently the most explored theme in the Brazilian seabird literature. If properly evaluated, this kind of information can improve our knowledge on distribution, migration and status of occurrence of these species. In this note we present new records for six species of poorly-known seabirds in the Brazilian coast, reviewing distribution records and defining their status of occurrence in the country. We consider Chionis albus (Gmelin, 1789) a pseudo-vagrant in Brazil and define its status as a scarce seasonal visitor from southern South America. We present the first records of Leucophaeus atricilla (Linnaeus, 1758) for Trindade Island, and of Leucophaeus pipixcan (Wagler, 1831) for the state of Rio Grande do Sul, and determined that the former is a vagrant in eastern Brazil and the latter a vagrant across the country. Anous stolidus (Linnaeus, 1758) is a vagrant in southernmost Brazil. We were unable to determine if records of Chlidonias niger (Linnaeus, 1758) for Brazil and southern South America refer to vagrancy or pseudo-vagrancy. Additionally, we verified the occurrence of breeding individuals of Anous minutus Boie, 1844 on Martin Vaz Island and confirmed that there is no evidence of breeding on neighboring Trindade Island.

Rediscovery of the holotype of Horvathinia lenti De Carlo, 1958, new junior synonym of H. pelocoroides Montadon, 1911 (Insecta: Hemiptera: Belostomatidae)

Zootaxa ◽  
2020 ◽  
Vol 4750 (2) ◽  
pp. 298-300
Author(s):  
CLAUDIA L. RODRIGUES ◽  
RAFAEL B. BRAGA ◽  
FELIPE F. F. MOREIRA
Keyword(s):  
South America ◽  
New Genus ◽  
Rio Grande ◽  
Junior Synonym ◽  
The Other ◽  
Single Specimen ◽  
Rio Grande Do Sul ◽  
New Genus And Species ◽  
Additional Species ◽  
Southern South America

Horvathinia pelocoroides Montandon, 1911 was described as a new genus and species based on two specimens collected in Brazil, one from Minas Gerais deposited in the Naturhistoriska Riksmuseet (Stockholm) and the other from Rio Grande do Sul deposited in the Magyar Természettudományi Múzeum (Budapest) (Montandon 1911). Subsequently, nine additional species were described based on a single specimen each, collected at different localities in southern South America: H. doellojuradoi De Carlo, 1930; H. pelleranoi De Carlo, 1930; H. castilloi De Carlo, 1938; H. meyeri De Carlo, 1938; H. bollei De Carlo, 1958; H. lenti De Carlo, 1958; H. schubarti De Carlo, 1958; H. forsteri Lauck, 1958; and H. argemii Schnack, 1972 (Schnack & Estévez 2005). 

scholarly journals Amphibia, Anura, Hylodidae, Crossodactylus schmidti Gallardo, 1961: new record for Rio Grande do Sul, Brazil

Check List ◽  
2012 ◽  
Vol 8 (3) ◽  
pp. 501
Author(s):  
Claiton Machado
Keyword(s):  
South America ◽  
New Record ◽  
Conservation Status ◽  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Southern Limit ◽  
Southern South America

Crossodactylus schmidti can be found in few localities of southern South America, occurring in Argentina, Brazil and Paraguay. In July 2011, one specimen of Crossodactylus schmidti was found in the municipality of Taquaruçu do Sul, Rio Grande do Sul state, Brazil. This is the second record of the species for Rio Grande do Sul and extends its known distribution ca. 35 km southwest from the closest known locality Parque Estadual do Turvo, municipality of Derrubadas. This record probably corresponds to the southern limit of distribution of the species, which would allow a reassessment of its conservation status.

scholarly journals Quadrigyrus torquatus cystacants Van Cleave, 1920 (Acanthocephala: Quadrigyridae) parasitizing species of Astyanax (Characiformes: Characidae) from southern Brazil

2019 ◽  
Vol 19 (3) ◽  
Author(s):  
Moisés Gallas ◽  
Laura R. P. Utz
Keyword(s):  
Life Cycle ◽  
South America ◽  
Light Microscopy ◽  
Rio Grande ◽  
Feeding Habit ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Porto Alegre ◽  
Parasite Life Cycle ◽  
First Time

Abstract: The acanthocephalan species Quadrigyrus torquatus Van Cleave, 1920 has been found in different hosts from South America, but recent papers have not focused on its morphology traits. Different species of Astyanax Baird & Girard, 1854 were collected with seine nets between January 2017 and October 2017 in Pintada Island, Lake Guaíba, Porto Alegre city (30º17’11’’S and 51º18’01”W), Rio Grande do Sul State, Brazil. Acanthocephalans found in cysts were processed according to the techniques for the group. Specimens of Q. torquatus were identified based mainly in the morphology of proboscis hooks and trunk spines, and by the measurements made using light microscopy. Supplemental observations on the morphology of Q. torquatus were made for the first time considering the morphology and amount of hooks and spines. The amplitude of intensity of infections was 1 (A. aff. fasciatus) and 1‒3 (A. lacustris) helminths. This difference could be related to the number of hosts examined, the feeding habit of the hosts or related to aspects in the parasite life cycle. This paper is the first report of Q. torquatus in A. aff. fasciatus and A. lacustris from Lake Guaíba, extending the distribution to the southernmost state of Brazil, thus contributing to the knowledge of acanthocephalans in freshwater fishes from South America.

Estudo da Dispersão do Monóxido de Carbono Associado a Emissão Veicular na Região Metropolitana de Porto Alegre com o Sistema de Modelagem Numérica CCATT - BRAMS

2020 ◽  
Author(s):  
Karen Leandra ávila da Silva ◽  
Marcelo Félix Alonso ◽  
Sabrina Feltes de Moura ◽  
Túlio Felipe Verdi Filho
Keyword(s):  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Porto Alegre

Resumo O monitoramento contínuo da qualidade do ar local é extremamente importante para a gestão ambiental de uma cidade, mas nem sempre viável pelo alto custo dos equipamentos. Por conta disso, investe-se muito na utilização da modelagem numérica no estudo da qualidade do ar, que é altamente dependente de inventários de emissões dos poluentes e seus precursores. Nesse contexto o objetivo deste trabalho foi realizar um estudo da dispersão do monóxido de carbono (CO) na Região Metropolitana de Porto Alegre, no estado do Rio Grande do Sul, utilizando o sistema de modelagem numérica CCATT-BRAMS, com ênfase nas fontes veiculares. Foram analisados dois períodos - janeiro de 2009 e janeiro de 2016 - utilizando-se as informações dos inventários de gases precursores elaborados pela FEPAM para os anos base de 2009 e 2013, respectivamente, distribuídos espacialmente com o auxílio do pré-processador de emissões PREP-CHEM-SRC utilizado pelo CCATT-BRAMS. No geral, as simulações representaram coerentemente os dados observados pela rede de monitoramento, com RMSE abaixo de 0,3 na maioria das estações avaliadas. Análises de sensibilidade também revelaram que, para o período avaliado, aproximadamente 40% da concentração de CO sobre a cidade de Porto Alegre foi devido ao transporte de larga escala, proveniente das cidades localizadas ao norte, dentro da Região Metropolitana.

Queermuseu: estratégias de mobilização nas redes sociais

Temática ◽  
2018 ◽  
Vol 14 (10) ◽  
Author(s):  
Henrique Esper ◽  
Cristóvão Domingos de Almeida
Keyword(s):  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Porto Alegre

O objetivo deste trabalho é compreender a repercussão da exposição de arte Queermuseu – cartografias da diferença na arte brasileira, com foco nas estratégias de visibilidade e resistência após o encerramento antes do prazo estipulado no Santander Cultural, em Porto Alegre, no Rio Grande do Sul. Fundamentamos nos conceitos de redes sociais digitais, estratégias de comunicação e organização como espaço de fortalecimento das atividades de resistência. A partir de registros das publicações nas páginas do Facebook e entrevistas, selecionamos as estratégias e as formas de aproximação com os públicos. Evidenciamos que as redes sociais podem servir como potencialidade de desenvolvimento, aproximação dos indivíduos e de resistência, num momento em que avança a narrativa do silenciamento e de negação das lutas das minorias.Palavras-chave: Comunicação. Resistência. Visibilidade. Redes Sociais. Queermuseu.

Sign in / Sign up

Export Citation Format

Share Document