A restinga é um ambiente relativamente pouco evoluído e apresenta uma avifauna pobre em espécies. O objetivo deste trabalho foi estudar a dieta do tiê-sangue (Ramphocelus bresilius) no Parque Natural Municipal Chico Mendes, localizado na... more
A restinga é um ambiente relativamente pouco evoluído e apresenta uma avifauna pobre em espécies. O objetivo deste trabalho foi estudar a dieta do tiê-sangue (Ramphocelus bresilius) no Parque Natural Municipal Chico Mendes, localizado na cidade do Rio de Janeiro, onde predominam restingas secas e brejosas. Os tiês-sangue foram capturados em redes, entre agosto de 2004 e novembro de 2005, e receberam o tártaro emético, resultando em 41 regurgitações induzidas e/ou amostras de fezes. Detectamos que 32% das amostras eram compostas apenas de itens de origem vegetal, 8% apenas de itens de origem animal e 58% de itens vegetais e animais. Sementes de Ficus sp. foram encontradas em 36% das amostras, bem como Alchornea triplinervia (19%), Lantana camara (9%), Cestrum sp. (4%), Ficus religiosa (4%), além de Psychotria sp., Myrsine sp., Piper sp1, Piper sp2, Cecropia sp. e morfotipos (1, 2 e 3), com 2% cada uma. Itens vegetais não identificados somaram 11% das amostras. Dos invertebrados ident...
Research Interests:
Research Interests: Geography and Archipelago
Research Interests:
ABSTRACT. Analysis of the data of recapture of the Sula spp. (Pelecaniformes, Sulidae) ocurred in Brazil between 1981 and 2000. With the objective of contributing to the knowledge of the ecology of the sulides in Brazil, the data of... more
ABSTRACT. Analysis of the data of recapture of the Sula spp. (Pelecaniformes, Sulidae) ocurred in Brazil between 1981 and 2000. With the objective of contributing to the knowledge of the ecology of the sulides in Brazil, the data of recaptures of birds banding were analyzed, informed to the National Center of Research for Bird Conservation (CEMAVE/IBAMA) in the period from 1981 to 2000, giving emphasis to the analysis of the movement patterns, longevity and principal recovery places. The analyzed data correspond to the birds bands for several researchers, besides the authors’ data in eight Brazilian states. To the whole referring data were analyzed to 17.962 birds bands of the 3 species. The 19 years of sulids banding in Brazil resulted in 725 recapatures for the 3 species. The largest longevity verified for S. leucogaster it was of 18 years, for S. dactylatra and S.sula, the largest longevity registrations were of 10 years. The obtaining of information on the biology of the birds a...
Research Interests:
Research Interests:
Research Interests:
ABStRACt: Birds of the Jacarepaguá lowlands, Municipality of Rio de Janeiro, State of Rio de Janeiro the coastal Jacarepaguá lowlands are situated in the western municipality of Rio de Janeiro, with a lagunar system including the most... more
ABStRACt: Birds of the Jacarepaguá lowlands, Municipality of Rio de Janeiro, State of Rio de Janeiro the coastal Jacarepaguá lowlands are situated in the western municipality of Rio de Janeiro, with a lagunar system including the most important coastal lagoons of the region. Originally, the region was covered by restinga scrub located in sand soils with several marshes and swamps areas. The intensive urban occupation, principally since the 1970's, has fragmented the natural landscapes in the region. Isolation has been the destiny of the local restinga vegetation, while lagoons have been polluted and diminished by deposition of sediment and detritus. Since May 2004 we have studied the birds of the Jacarepaguá lowlands. Several visits have been made to the municipal parks Chico Mendes, Bosque da Barra, Prainha and Marapendi. A bibliographical revision also was made searching by published ornithological studies in the region. A total of 176 species has been recently recorded for us...
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Resumo: A restinga é um ambiente relativamente pouco evoluído e apresenta uma avifauna pobre em espécies. O objetivo deste trabalho foi estudar a dieta do tiê-sangue (Ramphocelus bresilius) no Parque Natural Municipal Chico Mendes,... more
Resumo: A restinga é um ambiente relativamente pouco evoluído e apresenta uma avifauna pobre em espécies. O objetivo deste trabalho foi estudar a dieta do tiê-sangue (Ramphocelus bresilius) no Parque Natural Municipal Chico Mendes, localizado na cidade do Rio de Janeiro, onde predominam restingas secas e brejosas. Os tiês-sangue foram capturados em redes, entre agosto de 2004 e novembro de 2005, e receberam o tártaro emético, resultando em 41 regurgitações induzidas e/ou amostras de fezes. Detectamos que 32% das amostras eram compostas apenas de itens de origem vegetal, 8% apenas de itens de origem animal e 58% de itens vegetais e animais. Sementes de Ficus sp. foram encontradas em 36% das amostras, bem como Alchornea triplinervia (19%), Lantana camara (9%), Cestrum sp. (4%), Ficus religiosa (4%), além de Psychotria sp., Myrsine sp., Piper sp1, Piper sp2, Cecropia sp. e morfotipos (1, 2 e 3), com 2% cada uma. Itens vegetais não identificados somaram 11% das amostras. Dos invertebrados identificados, os artrópodes coleópteros foram a ordem mais encontrada (30,2%). Ramphocelus bresilius é uma espécie onívora. A coleta sistemática de espécies vegetais na área resultaria em uma base de dados mais consistente e funcional para auxiliar na identificação das sementes encontradas. Palavras-chave: Alimentação. Tártaro emético. Ramphocelus bresilius. Parque urbano. Rio de Janeiro. Abstract: Restinga is a relatively recently evolved ecosystem with a species-poor avifauna. The objective of this study was to investigate the diet of the Brazilian Tanager (Ramphocelus bresilius) in Chico Mendes Municipal Natural Park, located in the city of Rio de Janeiro, where dry and marshy restingas predominate. Tanagers were captured in nets between August 2004 and November 2005 and received tartar emetic, resulting in 41 samples of induced regurgitation and/or faecal samples. We found that 32% of samples were composed of only vegetable items, 8% animal matter and 58% contained a mixture of animal and vegetable items. Seeds of Ficus sp. were found in 36% of samples, as well as Alchornea triplinervia (19%), Lantana camara (9%), Cestrum sp. (4%), Ficus religiosa (4%) besides the Psychotria sp., Myrsine sp., Piper sp1, Piper sp2, Cecropia sp. and morphotypes (1, 2 and 3) with 2% each. Unidentified vegetable items totaled 11% of samples. Of the invertebrates identified Coleopteran arthropods were the most encountered order (30.2%). Ramphocelus bresilius is an omnivorous species. A systematic collection of vegetable species in the area would bring a more consistent and functional database to support the identification of seeds found in the samples.
Research Interests:
The diet of P. leucoptera (Vieillot, 1818) was studied using the emetic tartar which induces birds' regurgitation. Birds were captured and treated between May 1996 and June 1997 in the Atlantic Forest at the city of Guapimirim, State of... more
The diet of P. leucoptera (Vieillot, 1818) was studied using the emetic tartar which induces birds' regurgitation. Birds were captured and treated between May 1996 and June 1997 in the Atlantic Forest at the city of Guapimirim, State of Rio de Janeiro, southeastern Brazil. The study area is a secondary forest continuous to the Serra dos Órgãos forest. Insect fragments of Coleoptera and Hymenoptera were the items most frequently found in the regurgitate samples. Besides contributing to the knowledge of the species diet, pictures of identified Arthropoda fragments are presented in order to aid future works on avian feeding.