Phyllodytes tuberculosus is a bromeligenous anuran species whose geographic distribution is restricted to areas of the Caatinga and to transition zones between Caatinga and Atlantic Forest in the central-south of the state of Bahia. Its existence in close relationship with bromeliads and its occurrence in dry and highly seasonal environments drove us to the supposition that species is opportunistic/generalist regard to diet. We collected the items present in the stomach of 43 P. tuberculosus individuals with stomach-flushing method. Of these, 18 stomach contents were obtained during the dry period (April–October), and 25 during the rainy period (November–March). We recorded nine classes of prey, finding the greatest relative importance for the categories Formicidae and Coleoptera in dry season and Blattodea (Termites), Formicidae and Coleoptera in the rainy season. Phyllodytes tuberculosus presented a varied, possibly opportunistic diet in semiarid environments. Additionally, we report an apparent temporal differentiation related to the typical Caatinga seasonality. This study adds to the data on the natural history of an anuran species adapted to a semiarid environment with a narrow geographic distribution.
The Brazilian CO 2 Pilot Project was started off in 2012 in Florianopolis, SC, at a 6,280 m 2 experimental cell located at the Ressacada Farm, Santa Catarina Federal University (UFSC), fully sponsored by PETROBRAS Research Center (CENPES). This pioneer initiative was carried out as a technical cooperation among CENPES, the Brazilian Academy and international researchers, to provide field infrastructure for carbon dioxide simultaneous detection in the open environment, encompassing the atmosphere, subsurface and soil. The project goals are to deploy, test and assess the multiple measurement tools simultaneously deployed on site during CO2 controlled releases. These methodologies are likely to be applied in future large scale carbon sequestration sites. This work presents the initial results of the atmospheric dispersion modeling studies and an overview of the atmospheric measurements carried out in the 2013 CO 2 controlled release, in which a standard CO 2 Eddy Covariance System (ECS) and a CO 2 (delta 13 C) Isotope Gas Analyser (IGA) were deployed to track CO 2 in the air. Dispersion studies, currently at an early stage, were carried out using AERMOD 8.8.9. Results showed overall consistent trends, when comparing the outcome from the monitoring set as well as when confronting model output with experimental data.
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