Os desafios impostos pela proposta de transposição das águas da bacia do rio São Francisco para a bacia hidrográfica do nordeste setentrional.

O presente trabalho tem como principal objetivo a análise do projeto que transpõe uma porção das águas da bacia do rio São Francisco para os rios da bacia do Nordeste Setentrional brasileiro. O projeto é baseado na necessidade da água para o desenvolvimento da região e, principalmente, para solucionar o problema das secas no nordeste. O trabalho se justifica pela importância do projeto para os princípios e normas sobre a gestão e uso das águas no Brasil. Os resultados indicam que o projeto somente será bem sucedido, considerando seus objetivos, se criados novos programas e implementadas modificações nos programas já propostos, o que requer sejam reformulados os prazos e recursos necessários.The mainly objective of the present work is the analyses of a Project for transposition of a portion of São Francisco river’s hydrographical basin water to rivers located on brazilian’s septentrional northeast hydrographical basin. The Project is based on the necessity of water for the development of brazilian’s northeast region and, mainly, as a solution for the dry weather dominant in this area. The work is justified by the significance of the Project concerning principles and norms referred to water use and management in Brazil. The results reached indicate that the Project will only be well–succeeded, considering its aims, if created new programs and put modifications into practice in the programs proposed before, which will require the reformulation of term and resources needed

Núcleos de Ensino da Unesp: artigos 2008

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq

NEOTROPICAL XENARTHRANS: a data set of occurrence of xenarthran species in the Neotropics

Xenarthrans—anteaters, sloths, and armadillos—have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with domestic dogs, these species have been threatened locally, regionally, or even across their full distribution ranges. The Neotropics harbor 21 species of armadillos, 10 anteaters, and 6 sloths. Our data set includes the families Chlamyphoridae (13), Dasypodidae (7), Myrmecophagidae (3), Bradypodidae (4), and Megalonychidae (2). We have no occurrence data on Dasypus pilosus (Dasypodidae). Regarding Cyclopedidae, until recently, only one species was recognized, but new genetic studies have revealed that the group is represented by seven species. In this data paper, we compiled a total of 42,528 records of 31 species, represented by occurrence and quantitative data, totaling 24,847 unique georeferenced records. The geographic range is from the southern United States, Mexico, and Caribbean countries at the northern portion of the Neotropics, to the austral distribution in Argentina, Paraguay, Chile, and Uruguay. Regarding anteaters, Myrmecophaga tridactyla has the most records (n = 5,941), and Cyclopes sp. have the fewest (n = 240). The armadillo species with the most data is Dasypus novemcinctus (n = 11,588), and the fewest data are recorded for Calyptophractus retusus (n = 33). With regard to sloth species, Bradypus variegatus has the most records (n = 962), and Bradypus pygmaeus has the fewest (n = 12). Our main objective with Neotropical Xenarthrans is to make occurrence and quantitative data available to facilitate more ecological research, particularly if we integrate the xenarthran data with other data sets of Neotropical Series that will become available very soon (i.e., Neotropical Carnivores, Neotropical Invasive Mammals, and Neotropical Hunters and Dogs). Therefore, studies on trophic cascades, hunting pressure, habitat loss, fragmentation effects, species invasion, and climate change effects will be possible with the Neotropical Xenarthrans data set. Please cite this data paper when using its data in publications. We also request that researchers and teachers inform us of how they are using these data