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| Registros recuperados: 11 | |
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| Gambale,Priscilla G.; Woitovicz-Cardoso,Manoela; Vieira,Raísa R.; Batista,Vinícius G.; Ramos,Jade; Bastos,Rogério P.. |
| A diversidade biológica e os processos ecológicos do bioma Cerrado ainda são pouco conhecidos. Neste estudo são apresentadas informações acerca da estrutura da anurofauna do município de Barro Alto, estado de Goiás (Brasil Central). Cinco corpos d'água foram amostrados entre os anos de 2007 a 2010 (outubro-março), três deles associados à área florestal e dois associados à área aberta. Registraram-se 39 espécies de anuros, caracterizados como especialistas de hábitat aberto, florestal ou generalistas. A curva de acumulação de espécies apresentou a formação de uma assíntota, evidenciando que as técnicas e esforço de amostragens foram adequados para se estimar a riqueza de espécies de anuros na região. A riqueza foi influenciada pela umidade e temperatura, já... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibia; Anura; Taxocenose; Distribuição espacial. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212014000100007 |
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| Silva,Daniela de M. e; Cruz,Aparecido D. da; Bastos,Rogério P.; Telles,Mariana P. de C.; Diniz-Filho,José Alexandre F.. |
| To assess genetic structure and phenotypic diversity of Eupemphix nattereri Steindachner, 1863, morphometric and molecular analyses were carried out for nine populations from the State of Goiás. A total of 11 morphometric traits were evaluated and genetic information was estimated using RAPD markers. Genetic and phenotypic distances were determined as a function of geographical origin. Correlation among genetic, morphometric, micro, and macroenviromental were analyzed by the Mantel test. Genetic data indicated high levels of genetic diversity (Φst= 0.3) among the nine populations. Mantel tests did not reveal a significant positive correlation between genetic and geographical distances, indicating that locally geographical populations were not genetically... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eupemphix nattereri; Morphology; RAPD markers; Gene flow; Population structure. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000400013 |
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| Alcantara,Mariana B.; Lima,Leôncio P.; Bastos,Rogério P.. |
| From January, 1997 to April, 1998, we studied breeding activity in a population of Scinax centralis Pombal & Bastos, 1996, in the state of Goiás, inside the Cerrado Biome, Brazil. The behavior of males and females in the choruses, the relationships between environmental variables and the presence of individuals, the spatial distribution pattern, amplexus and clutches were analyzed. The breeding season occurred from November to May. The majority of males began to call when they entered the chorus; they were defending their calling sites against other males. We found a positive correlation between the number of females and males in the choruses, but no significant correlation was observed between the operational sexual ratio (OSR, number of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scinax centralis; Spatial distribution; Breeding; Aggressive behavior; Central Brazil. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212007000400008 |
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| Guimarães,Lorena dall'Ara; Bastos,Rogério P.. |
| The vocalizations of H. raniceps (Cope, 1826) and their functions are described, including an analysis of the influence of temperature, weight, or SVL (snout-vent length) of males on the acoustic parameters. The vocalizations were recorded in three areas in Fazenda Lagoa Grande, Municipality of Pontalina, State of Goiás, central Brazil. Males began their vocalizations just before sunset, extending them, in some cases, to dawn of the following day. The peak of activities happened between 21h and 23h. The height of calling sites varied plenty, being the position horizontal in about 50% of them. Males defended sites in different areas during consecutive nights. Rain and strong winds interrupted the calling activities. Males emitted three vocalizations:... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anura; Hylidae; Hyla; Vocalization; Acoustic parameters. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212003000200005 |
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| Bastos,Rogério P.; Haddad,Célio F. B.; Pombal Jr,José P.. |
| During the intervals of February 1993 to January 1994 and November 1994 to February 1995, in the southern São Paulo state, we studied the breeding activity of Scinax rizibilis (Bokermann, 1964), the only known hylid species with oviposition in foam nests. The foam nests were constructed by female jumps, during the oviposition. The clutches contained 850-1250 eggs, which were almost black, except for the small clear vegetative pole. The construction of foam nest in S. rizibilis is unique among the other species with this characteristic. The complexity of a foam nest is intermediate, and egg development was faster when eggs were surrounded by foam. It is possible to recognize a progression from less developed structures, represented by the bubble nests of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oviposition; Reproduction; Treefrog. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000600007 |
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| Gonçalves,Macks W.; Gambale,Priscilla G.; Godoy,Fernanda R.; Alves,Alessandro Arruda; Rezende,Pedro H. de Almeida; Cruz,Aparecido D. da; Maciel,Natan M.; Nomura,Fausto; Bastos,Rogério P.; Marco-Jr,Paulo de; Silva,Daniela de M.. |
| ABSTRACT Amphibians inhabiting agricultural areas are constantly exposed to large amounts of chemicals, which reach the aquatic environment during the rainy season through runoff, drainage, and leaching. We performed a comet assay on the erythrocytes of tadpoles found in the surroundings of agricultural fields (soybean and corn crops), where there is an intense release of several kinds of pesticides in different quantities. We aimed to detect differences in the genotoxic parameters between populations collected from soybeans and cornfields, and between them and tadpoles sampled from non-agricultural areas (control group). Tadpoles collected from ponds located at soybean fields had significantly more DNA damage, followed by tadpoles collected from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibians; Bioindicators; Exposure; Genotoxicity; Pesticides. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702017000100316 |
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| Bastos,Rogério P.; Haddad,Célio F.B.. |
| A controlled experiment, related with the mating system of Scinax rizibilis (Bokermann, 1964), was conducted to assess if larval variation could be due to size of male or its ability to manage an amplexus. Adult individuals were caught during breeding activity (from February 1993 to January 1994), in a temporary pond in the municipality of Ribeirão Branco. São Paulo State, southeastern Brazil. The duration of the larval period was not different between tadpoles of large and small males, nor was it different between tadpoles coming from natural or artificial pairs. The reproductive status of the male (if it had managed an amplexus) also did not influence the total length nor the mass of the tadpoles close to metamorphosis. However, tadpoles of larger and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scinax rizibilis; Mating system; Larval characteristic. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000400012 |
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| Registros recuperados: 11 | |
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