Reproductive Dynamics of the Neotropical Treefrog Hypsiboas albopunctatus (Anura, Hylidae)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

The Taxonomic Status of Dendropsophus allenorum and Dendropsophus timbeba (Anura: Hylidae)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

One step forward: contrasting the effects of Toe clipping and PIT tagging on frog survival and recapture probability

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

ATP in the locus coeruleus as a modulator of cardiorespiratory control in unanaesthetized male rats

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relações entre variáveis ambientais e anfíbios anuros em áreas de cerrado e floresta estacional semidecidual

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Partitioning the net effect of host diversity on an emerging amphibian pathogen

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Morphological effects of bacterial compounds on the testes of Eupemphix nattereri (Anura)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Biogeographic Distribution Patterns and Their Correlates in the Diverse Frog Fauna of the Atlantic Forest Hotspot

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

The relationships between parasite intensity, locomotor performance, and body condition in adult toads (Rhinella icterica) from the wild

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Isotopic Discrimination Factors (Delta C-13 and Delta N-15) between Tissues and Diet of the Broad-Snouted Caiman (Caiman latirostris)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Natural History of Paratelmatobius gaigeae (Amphibia, Anura, Leptodactylidae): Description of the Tadpole and Advertisement Call

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Complex Call with Different Messages in Bokermannohyla ibitiguara (Anura, Hylidae), a Gladiator Frog of the Brazilian Cerrado

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Adaptations to salinity and osmoregulation in the frog Thoropa-miliaris (Amphibia, Leptodactylidae)

The leptodactylid frog Thoropa miliaris, from SE Brazil, may live on rocky marine shore, where it thrives on terrestrial and marine invertebrates, and often moves into the intertidal zone. The osmotic concentration of plasma, muscle homogenate and urine of the frogs freshly captured on the rocky shore was higher than those collected far from the sea, or kept in captivity for 6-8 months on a diet free of marine items. Increase in body urea and sodium concentrations, reported in amphibians as a response to hyperosmotic environment, was not found in T. miliaris. Osmotic concentration of the frogs from rocky shore was variable though, ranging from 400 to 980 mOsm/l. Such variation in the osmotic concentration may reflect a territorial behavior for foraging sites, which would result in higher intake of marine items by individuals living closer to intertidal zone.

Deslocamento de caráter em hilídeos neotropicais (anura: hylidae)

The interspecific competition tends to favor the selection of divergent phenotypes minimizing the effect of this interaction. This process is termed character displacement and it is considered one of the main mechanisms promoting adaptive diversification. Brazil has the greatest diversity of amphibians on the planet and despite this great diversity; the role of character displacement in the process of Brazilian amphibian fauna diversification has not been studied. In the present study we tested the hypothesis of character displacement in four congeneric species pairs of frogs from the family Hylidae, occurring in the Atlantic Forest and Cerrado. We find evidence of character displacement for two pairs and parallel evolution for the remaining. Interestingly, the trend of character displacement was in species whose range covers less stable habitats. Since this is a pioneering study with neotropical hylid, we discussed issues considered relevant to elucidate mechanisms related to the maintenance of diversity

Dimorfismo sexual em Dasypops schirchi (Miranda-Ribeiro, 1924): aspectos morfológicos

Amphibians exhibit great morphological plasticity of habitat and life history. This heterogeneity contributes to the frequency of occurrence and diversity of sexual dimorphism (shape or size) is large. Dasypops schirchi is a species belonging to the subfamily and family Gastrophryninae Microhylidae and this endemic and endangered. Generally, very little is known about D. schirchi, much in part to its habit of living and cryptic small geographical distribution. In order to detect and characterize elements sexually dimorphic in this species was a survey of specimens of D. schirchi in major national zoological collections. We analyzed 16 morphometric variables were also searched and secondary sexual characters non-morphometric. Statistical analysis of the morphometric data, the results showed a clear distinction between males and females of D. schirchi, secondary sexual characters nonmorphometric were also found