In this paper we describe the present status of the large migratory catfish fisheries in the Upper Amazon. We present biological information about the main species and we give strong evidence that the stock of piraiba ...

O trabalho tece algumas considerações acerca das relações seringueiro-seringalista e do sistema de aviamento na estrutura econômica da Amazônia.

Toxoplasma gondii is an important pathogen in aquatic mammals and its presence in these animals may indicate the water contamination of aquatic environment by oocysts. Serum samples from 95 free-living Amazon River dolphins ...

Microphilypnus Myers, 1927 is a genus with three nominal species (M. amazonicus and M. macrostoma from the lower Amazon basin, and M. ternetzi from Orinoco), and is among the most poorly studied groups of Neotropical fishes. ...

Introduction: This paper reports, for the first time, the presence of Rhodnius stali in the state of Acre and in the Brazilian Amazon. Methods: Specimens of R. stali were collected by the Federal University of Acre in Rio ...

Brazil fits into the temporality of structural crisis of capital in this beginning of the XXI century, experiencing an intense reorganization of national capitalism, called New Developmentalism. Among the State strategies ...

Land cover change in the Neotropics represents one of the major drivers of global environmental change. Several models have been proposed to explore future trajectories of land use and cover change, particularly in the ...