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Estudamos a dieta de Leptodactylus ocellatus ao longo de três lagoas costeiras no Município de Anchieta, ES, sudeste do Brasil. Cinquenta e sete exemplares foram coletados, variando de 18,5 a 100,4 mm no comprimento rostro-uróstilo. Leptodactylus ocellatus consumiu uma grande variedade de itens alimentares. Besouros adultos foram as presas mais frequentes, seguidos por larvas de besouros e formigas. Cupins foram os itens predominantes em termos numéricos, enquanto ortópteros foram os ítens dominantes em termos de massa. Foi observada a presença de vertebrados na dieta de L. ocellatus, incluindo um jovem da mesma espécie. A dieta desta rã variou ontogeneticamente quanto ao tipo e ao tamanho das presas. We studied the diet of Leptodactylus ocellatus along three coastal lagoons in the Municipality of Anchieta, ES, Southeastern Brazil. Fifty-seven specimens were collected, ranging from 18.5 to 100.4 mm in snout-urostyle length. Leptodactylus ocellatus consumed a great variety of food items. Adult beetles were the most frequently consumed prey, followed by beetle larvae and ants. Termites were the numerically predominant food items, whereas orthopterans dominated the diet in terms of mass. The presence of vertebrates, including a conspecific individual, was observed in the diet of L. ocellatus. This frog´s diet changed ontogenetically both in terms of prey type and prey size.

Anurans from an inselberg in southeastern Brazil were studied using a sample of sixty tank bromeliads Alcantharea sp. We found 153 tadpoles of S. arduous, 21 adults of S. arduous, 30 adults of T. miliaris, and two individuals of Scinax x-signatus, which were not considered in our analyses. Tadpoles of S. arduous were present in 35% of the analyzed plants. Adults of S. arduous (bromeligeneous) occurred in 25% of analyzed plants, while adults of T. miliaris (bromelicolous) occurred in 30%. Apparently the presence of toe pads in S. arduous allows them to occupy the center portion of bromeliads, while T. miliaris, which do not have pads on their toes, used the base of the plant axils for residency. The number of anuran species and the abundance of individuals found were low. This may be a result of the high altitude of our studied site or a restriction imposed by the saxicolous environment, such as high temperatures and low humidity during the day. Both species can be considered generalist feeders due to their wide variety of ingested prey. Formicidae was their main prey but was absent inside the bromeliads. Blattodea was very common inside the bromeliad axils and represented the most significant prey by weight in both frog species. We can conclude that both anurans forage inside and outside of bromeliads. The trophic niche breadth in S. arduous was larger than in T. miliaris. Even though both species are common inhabitants of the same environment, they demonstrated a marked spatial segregation in the bromeliads. Based on their diet, however, there may be disputes for territory outside of the bromeliads. Se estudiaron los anuros que usan las rosetas de 60 bromelias del género Alcantharea, en un afloramiento rocoso del sudeste de Brasil. Se encontraron 153 larvas y 21 adultos de Scinax arduous, 30 adultos de Thoropa miliaris, y dos individuos de Scinax x-signatus, éstos últimos no se incluyeron en los análisis. Las larvas de S. arduous se encontraron en el 35% de las plantas analizadas. Los adultos de S. arduous se presentaron en el 25% de las plantas estudiadas, mientras que los adultos de T. miliaris se encontraron en el 30% de las plantas. Aparentemente, la presencia de ventosas en las patas de S. arduous permite que los individuos de esta especie ocupen la porción central de las bromelias, en tanto que los individuos de T. miliaris, los que carecen de dichas ventosas en sus patas, ocupan las axilas inferiores de las hojas de las bromelias. El número de especies de anuros y la abundancia de individuos fue relativamente baja. Esto puede ser el resultado de la apreciable altitud del área estudiada o por las restricciones impuestas por el ambiente saxícola del área investigada, la cual se caracteriza por presentar elevadas temperaturas y baja humedad durante el día. Ambas especies pueden ser consideradas como consumidores generalistas. Los formícidos constituyeron la principal presa en número, aunque éstos no se registraron en las rosetas de las bromelias. Por su parte, los Blattodea fueron muy comunes dentro de las bromelias, los cuales representaron una presa más importante en peso para las dos especies de anuros. Se puede concluir que ambas especies de anuros forrajean en la parte interna como en la externa de las bromelias. El nicho trófico de S. arduous demostró ser más amplio. Aunque ambas especies de anuros son habitantes comunes del mismo ambiente, éstas presentan una marcada segregación espacial en las bromelias. No obstante, teniendo como base su dieta, las dos especies de anuros disputan territorio por fuera de las bromelias.

Vrcibradic, Davor, Teixeira, Rogério L., Borges-Júnior, Vitor N.T. (2009): Sexual dimorphism, reproduction and diet of the casque-headed treefrog Itapotihyla langsdorffii (Hylidae: Lophiohylini). Journal of Natural History 43 (35-36): 2245-2256, DOI: 10.1080/00222930903015824, URL: http://dx.doi.org/10.1080/00222930903015824

Os macrocrustáceos que ocorrem nas partes rasas do complexo lagunar Mundaú/Manguaba foram estudados entre maio de 1988 e abril de1989. As amostragens foram realizadas com rede de arrasto de praia. Foi capturado um total de 15 espécies pertencentes a 6 gêneros e 3 famílias. Baseado no CPUE, as espécies que predominaram em número foram: Palaemon pandaliformis, seguido por Macrobrachium acanthurus e Callinectes danae. Com relação à biomassa, as espécies dominantes foram: C. danae, seguido por C. bocourti, P. pandaliformis, M. acanthurus e C. ornatus. Análises de agrupamento por mês e estação de coleta evidenciaram a associação de dois grupos de espécies: um dominado por portunídeos e outro por palaemonídeos. Como os macrocrustáceos representam importantes recursos pesqueiros, é necessário o desenvolvimento de melhores planos de manejo dentro do estuário para garantir a renovação dos estoques. The macrocrustaceans occupy the shallow waters of Mundaú/Manguaba lagoonal system, located in Maceió, AL, northeastern Brazil, were studied from May 1988 to April 1989. Samples were taken with a beach seine. It was collected 15 species belonging to 6 genera and 3 families. Dominant species in number were: Palaemon pandaliformis, followed by Macrobrachium acanthurus and Callinectes danae. Dominant species in biomass were: C. danae, followed by C. bocourti, P. pandaliformis, M. acanthurus and C. ornatus. Dominant species occurred throughout the year and in most stations. Cluster analysis based on the abundance by month and stations showed the presence of two main group of species: Group I dominated by portunids, and group II dominated mainly by palaemonids. As macrocrustaceans are important fishery resources inside the estuarine area, its necessary the development of a better management plan for local authorities in order to guarantee the renewal of stocks.