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| Almeida-Gomes,Mauricio; Hatano,Fábio H.; Van Sluys,Monique; Rocha,Carlos F. D.. |
| We analyzed the diet and microhabitat use for two Hylodinae anurans (Cycloramphidae), Hylodes phyllodes Heyer & Cocroft, 1986 and Crossodactylus gaudichaudii Duméril & Bibron, 1841, living in sympatry at an Atlantic Rainforest area of Ilha Grande, in southeastern Brazil. The two species live syntopically at some rocky streams. The two species differed strongly in microhabitat use. Hylodes phyllodes occurred mainly on rocks, whereas C. gaudichaudii was observed mostly on the water. Regarding diet, coleopterans, hymenopterans (ants), and larvae were the most important prey item consumed by both species. Data suggest that microhabitat use appears to be an important parameter differentiating these frogs with respect to general resource... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anuran; Sympatry; Syntopy; Atlantic Rainforest; Ilha Grande. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212007000100005 |
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| Maia-Carneiro,Thiago; Dorigo,Thiago A.; Almeida-Gomes,Mauricio; Van Sluys,Monique; Rocha,Carlos F.D.. |
| We analyzed the feeding habits, microhabitat use, and daily activity period of the anuran species Cycloramphus brasiliensis (Steindachner, 1864), endemic to the Atlantic Rainforest biome. The only previous studies on this species focused on the systematics and new altitudinal records. This study was conducted in a large forest remnant located in the municipalities of Guapimirim and Cachoeiras de Macacu. We captured frogs through visual encounter surveys and recorded the frequency of microhabitat types used by them, and the time of capture. Diet was analyzed in terms of number, volume and frequency of occurrence of items. Individuals of C. brasiliensis occurred in association with fast-moving rocky portions of clear freshwater rivers, indicating a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Activity period; Conservation; Diet; Rheophilic habit; Threatened amphibians. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000300007 |
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| Siqueira,Carla C.; Vrcibradic,Davor; Almeida-Gomes,Mauricio; Borges-Junior,Vitor N. T.; Almeida-Santos,Patrícia; Almeida-Santos,Marlon; Ariani,Cristina V.; Guedes,Diego M.; Goyannes-Araújo,Pablo; Dorigo,Thiago A.; Van Sluys,Monique; Rocha,Carlos F. D.. |
| Data on species composition, richness, and density are presented for the leaf litter frog assemblage of an area of Atlantic Rainforest at the Serra dos Órgãos mountain range, in the state of Rio de Janeiro, southeastern Brazil. Three sampling methods were used: plot sampling, visual encounter surveys, and pitfall traps. The local assemblage of leaf litter frogs was composed of 16 species, with the direct-developing species, Euparkerella brasiliensis (Parker, 1926), being the most abundant. The estimated density of the local leaf litter frog assemblage based on plot sampling was 17.1 ind/100 m² and the estimated overall leaf litter frog mass was 684.2 g/ha. The estimated density of leaf litter frogs at the present study is the highest currently reported for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibian survey; Relative abundance; Tropical forest. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000100015 |
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| Maia,Thiago; Almeida-Gomes,Mauricio; Siqueira,Carla C.; Vrcibradic,Davor; Kiefer,Mara C.; Rocha,Carlos Frederico D.. |
| In this study we analyzed the diet of the gymnophthalmid lizard Ecpleopus gaudichaudii Duméril & Bibron, 1839, a typical inhabitant of the forest-floor leaf litter, in an Atlantic Forest area in the state of Rio de Janeiro, southeastern Brazil. The 26 individuals sampled during the study had a mean snout-vent length (SVL) of 36.2 ± 4.2 mm and a mean jaw width (JW) of 4.1 ± 0.5 mm. We did not find differences in SVL between males and females, though the sexes differed in JW when the effect of body size was factored out, with females presenting higher values. The diet of the lizards was composed exclusively of arthropods, especially isopods and orthopterans. The similarity in trophic niches among seasons (volumetric and numerical proportions of prey... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet; Lacertilia; Rainforest; Seasonality; Squamata. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000500006 |
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| Almeida-Gomes,Mauricio; Rocha,Carlos Frederico Duarte; Vieira,Marcus Vinícius. |
| In this study we evaluated how anuran species were distributed in riparian habitats along two large rivers. Sampling was carried out between January and March 2012 in the municipality of Cachoeiras de Macacu, state of Rio de Janeiro. We delimited 20 plots along each river, ten in portions inside the forest of the Reserva Ecológica de Guapiaçu (REGUA), and with comparatively greater amount of forest cover, and ten outside REGUA, with comparatively lesser forest cover surrounding the rivers. We recorded 70 individuals from 14 frog species in the Manoel Alexandre River and 63 individuals from 15 frog species in the Guapiaçu River. The most abundant species in both rivers was Cycloramphus brasiliensis (Steindachner, 1864), and it was more abundant in sections... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibian conservation; Aquatic environments; Connectivity; Frog species; Riparian forests. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000100009 |
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| Almeida-Gomes,Mauricio; Vrcibradic,Davor; Siqueira,Carla C.; Kiefer,Mara C.; Klaion,Thaís; Almeida-Santos,Patrícia; Nascimento,Denise; Ariani,Cristina V.; Borges-Junior,Vitor N.T.; Freitas-Filho,Ricardo F.; van Sluys,Monique; Rocha,Carlos F.D.. |
| We studied the herpetofaunal community from the Atlantic forest of Morro São João, in Rio de Janeiro State, Brazil, and present data on species composition, richness, relative abundance and densities. We combined three sampling methods: plot sampling, visual encounter surveys and pit-fall traps. We recorded sixteen species of amphibians and nine of reptiles. The estimated densities (based on results of plot sampling) were 4.5 ind/100 m2 for amphibians and 0.8 ind/100 m² for lizards, and the overall density (amphibians and lizards) was 5.3 ind/100 m². For amphibians, Eleutherodactylus and Scinax were the most speciose genera with three species each, and Eleutherodactylus binotatus was the most abundant species (mean density of 3.0 frogs/100 m²). The reptile... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Herpetofauna; Atlantic rainforest; Brazil; Richness; Density. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000200007 |
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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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| Almeida-Gomes,Mauricio; Siqueira,Carla Costa; Borges-Júnior,Vitor Nelson Teixeira; Vrcibradic,Davor; Ardenghi Fusinatto,Luciana; Frederico Duarte Rocha,Carlos. |
| Species inventories are useful tools to improve conservation strategies, especially in highly threatened biomes such as the Brazilian Atlantic Forest. Here we present a species list of amphibians and reptiles for the Reserva Ecológica de Guapiaçu (REGUA), a forest reserve located in the central portion of Rio de Janeiro state, Brazil. The list results from an extensive sampling effort that lasted ten years. A total of 73 amphibian (of which ten are endemic to the state) and 37 reptile species was recorded from the area. Five amphibian species are presently categorized by the IUCN as “data-deficient”, two as “near threatened” and one as “endangered”, whereas one reptile species is categorized as “vulnerable”. Our results showed that REGUA harbors about... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibians; Atlantic Forest; Conservation; Hotspot; Reptiles. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000300201 |
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| Siqueira,Carla da Costa; Vrcibradic,Davor; Almeida-Gomes,Mauricio; Menezes,Vanderlaine Amaral; Borges-Junior,Vitor Nelson Teixeira; Hatano,Fábio Haruki; Pontes,Jorge Antônio Lourenço; Goyannes-Araújo,Pablo; Guedes,Diego Medeiros; van Sluys,Monique; Rocha,Carlos Frederico Duarte. |
| We present data on species composition, relative abundance and estimated densities for leaf-litter anuran amphibians from an Atlantic Forest area within the Parque Estadual do Desengano, in the state of Rio de Janeiro, Brazil, based on results of a short-term survey carried out during the winter at altitudes of 1000-1500 m. Three sampling methods were used: plot sampling, visual encounter surveys (VES; performed during the day, at the twilight, and at night), and pitfall traps. We recorded 13 species, with the direct-developer Ischnocnema parva (Girard, 1853) being the most abundant. Most frogs (ca. 90% of all individuals) sampled by VES were captured during the crepuscular and nocturnal periods. The estimated density of the local leaf-litter frog... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibian; Atlantic Forest; Density estimate; Southeastern Brazil; Survey. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032011000400014 |
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