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Registros recuperados: 75 | |
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ARAÚJO,OLÍVIA G.S.; HADDAD,CÉLIO F.B.; SILVA,HÉLIO R. DA; PUGENER,LOURDES A.. |
ABSTRACT Pipa is a Neotropical genus of frogs that dwell in freshwater environments. It includes four species that lack free-swimming larvae (P. aspera, P. arrabali, P. pipa, and P. snethlageae) and three with tadpoles (P. carvalhoi, P. myersi, and P. parva). Developmental tables such as the one proposed by Nieuwkoop and Faber might be useful for Pipa species with tadpoles. However, for the other Pipa species, to determine stages by this table or by any of the tables already prepared for frogs without tadpoles (e.g., Crinia nimbus, Eleutherodactylus coqui, and Oreobates barituensis) is impossible. By using embryonic, juvenile, and subadult specimens, we generated a staging table for P. arrabali, from the moment limb buds were first observed until birth,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibia; Anura; Development; Morphology; Pipidae. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501875 |
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OLIVEIRA,MAURO C.L.M.; SANTOS,MAURICIO B. DOS; LOEBMANN,DANIEL; HARTMAN,ALEXANDRE; TOZETTI,ALEXANDRO M.. |
This study aimed to verify the relationship between habitat and the composition of anuran species in dune and restinga habitats in southernmost Brazil. The habitats were sampled between April 2009 and March 2010 using pitfalls with drift fence. We have captured 13,508 individuals of 12 anuran species. Species richness was lower in the dunes and dominance was higher in the resting. Apparently the less complex plant cover, water availability, and wide daily thermal variation in dunes act as an environmental filter for frogs. This hypothesis is reinforced by the fact that the most abundant species (Physalaemus biligonigerus and Odonthoprynus maisuma) bury themselves in the sand, minimizing these environmental stresses. Despite being in the Pampa biome, the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibia; Coastal dunes; Restinga; Niche. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200575 |
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Rocha,Carlos F.D.; Vrcibradic,Davor; Kiefer,Mara C.; Siqueira,Carla C.; Almeida-Gomes,Mauricio; Borges Júnior,Vitor N.T.; Hatano,Fábio H.; Fontes,Angélica F.; Pontes,Jorge A.L.; Klaion,Thais; Gil,Lívia O.; Sluys,Monique Van. |
We studied the leaf-litter frog community of Estação Ecológica Estadual Paraíso, in Guapimirim, Rio de Janeiro State, southeastern Brazil. Herein we combined three sampling methods (large plots, visual encounter surveys and pit-fall traps) to present data on species composition, richness, relative abundance and densities. The local assemblage of frogs associated to the leaf-litter was composed by 14 species, belonging to nine families. Haddadus binotatus, a direct-developing frog, was the most abundant species in the community. The estimated density of the local leaf-litter frog assemblage based on plot sampling was 4.3 frogs/100 m². Haddadus binotatus had the highest density (1.1 ind/100 m²). Frogs were predominantly found at night. Thoropa miliaris had... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibia; Atlantic Forest; Brazil; Community parameters; Density; Leaf-litter. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400013 |
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Ferreira,Adelina; Mehanna,Mahmoud; Prado,Cynthia P. A.. |
The spermatogenesis of Pseudis limellum, from the Southern Pantanal, Brazil, was studied from July 1995 to May 1996, through histological sections of the testis. The cells could be differentiated as: primary spermatogonia, large cells, generally with bilobed nucleus; secondary spermatogonia, smaller cells, with darker cytoplasm, chromatin of radial form; primary and secondary spermatocytes, differentiated according to the different stages of the nucleus during the successive cells divisions. Furthermore, we observed cells in process of morphologic differentiation: rounded spermatids much smaller, with nucleus containing chromatin in compacting process and cytoplasm reduction; elongated spermatids, generally parallel organized in well defined bundles, with... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Spermatogenesis; Male; Amphibia; Climatic influences. |
Ano: 2008 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452008000200004 |
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Laufer,Gabriel; Piñeiro-Guerra,Juan Manuel; Pereira-Garbero,Ramiro; Barreneche,Juan Manuel; Ferrero,Rosana. |
Scinax aromothyella is a recently described hylid frog. Its distribution is not well known. There are records for Misiones, Argentina and for southeastern Uruguay. Here we report a new record of S. aromothyella from Aceguá, Cerro Largo Department, Uruguay (31° 53' 39" S and 54° 9' 17" W), based in tadpoles collected on the 15 of August, 2007. This new record extends the distribution of S. aromothyella in approximately 100 km north from previous reports in Uruguay. The samples were collected in a site located 2 km away from the border line with Brazil, reinforcing the idea that S. aromothyella might occur in Rio Grande do Sul. |
Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Amphibia; Neotropical; Larva; Disturbed habitat; Temporal pond; Hilly area. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000200028 |
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Conte,Carlos Eduardo; Nomura,Fausto; Machado,Reginaldo Assêncio; Kwet,Axel; Lingnau,Rodrigo; Rossa-Feres,Denise de Cerqueira. |
Estudos envolvendo análises bioacústicas têm possibilitado a identificação de espécies pertencentes a grupos complexos, bem como a descrição e diferenciação de espécies crípticas. Recorrendo a esta ferramenta e com o objetivo de aumentar o conhecimento sobre a composição de espécies de anfíbios em áreas de Floresta com Araucária, foram amostradas 11 áreas nos estados do Paraná e Santa Catarina. Os resultados ampliaram significativamente o conhecimento da distribuição geográfica de oito espécies de anfíbios anuros: Ischnocnema henselii, Dendropsophus anceps, atualmente classificada como criticamente ameaçada no Estado do Paraná, D. nahdereri, Scinax granulatus, Trachycephalus dibernardoi, Pseudis cardosoi, Leptodactylus araucaria e L. nanus. Alguns destes... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Distribuição geográfica; Amphibia; Ischnocnema henselii; Dendropsophus anceps; Dendropsophus nahdereri; Pseudis cardosoi; Scinax granulatus; Trachycephalus dibernardoi; Leptodactylus araucaria; Leptodactylus nanus; Floresta Atlântica; Paraná; Santa Catarina. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000200024 |
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Silva,Leandro Alves da; Carvalho,Priscila Santos; Pereira,Elvis Almeida; Fadel,Renata Moleiro; Dantas,Silionamã Pereira; Brandão,Reuber Albuquerque; Santana,Diego José. |
Abstract: Herein, we provide the first comprehensive amphibian checklist for the State of Tocantins, North of Brazil, based on field sampling, literature data, and specimens deposited in zoological collections. We performed field surveys from 2012 to 2019 in 12 Tocantins municipalities, totaling 376 days of sampling effort. We analyzed 25 papers from the literature and examined 1311 specimens from collections and collected 750 during field surveys. We recorded 90 amphibian species distributed in 12 anurans and two caecilians families. At least seven undescribed species along the state were recorded. We also present new records for 20 species for the state, nine of them corresponding to Amazonian species, four Cerrado endemic, one Caatinga species, and the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazonian Forest; Amphibia; Savanna; Cerrado. |
Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100306 |
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Moraes,Renato Augusto de; Sawaya,Ricardo J.; Barrella,Walter. |
A Mata Atlântica é caracterizada pela elevada riqueza e endemismo de espécies, e é um dos 25 hotspots de biodiversidade mundiais. Apresentamos informações sobre a composição e diversidade de espécies de anfíbios anuros em dois ambientes com diferentes graus de perturbação no Parque Estadual Carlos Botelho, SP, uma área de Mata Atlântica no sudeste do Brasil. Amostramos um açude em área alterada e uma lagoa em área preservada, através de procura auditiva e encontros ocasionais em 36 noites de observação em cada ambiente. As duas áreas foram comparadas em relação à composição, riqueza, dominância e abundância relativa de espécies. Apesar de próximos, cerca de 400 m, apenas duas espécies foram comuns aos dois ambientes. Na área alterada registramos 10... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abundância relativa; Amphibia; Biodiversidade; Conservação; Dominância; Espécies colonizadoras; Floresta tropical; Riqueza de espécies. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000200003 |
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Registros recuperados: 75 | |
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