4 documents found, page 1 of 1
The avifauna of Viruá National Park, Roraima, reveals megadiversity in Northern...
Laranjeiras, Thiago Orsi; Naka, Luciano Nicol?s; Bechtoldt, Catherine L.; Costa, Thiago Vernaschi Vieira da; Andretti, Christian BorgesWhile many published maps of avian species richness indicate northern Amazonia to be somewhat species-poor, recent surveys reveal that this area actually possesses one of the most species-rich avifaunas in the Neotropical lowlands. Our surveys indicate that at least 520 bird species occur in Viruá National Park (VNP) and adjacent areas, which is located in the Brazilian state of Roraima (northern Amazonia). Her...
Geographic distribution of small non-volant mammals in the Araguaia and Paraná ...
Cáceres, Nilton C.; Casella, Janaína; Vargas, Claudeir Ferreira; Prates, Lucineia Z.; Tombini, Alam A.M.; Goulart, Charla S.; Hannibal, Wellington L.We collected small mammals in two hydrographic basins in central Brazil, namely the Paraná and Araguaia basins, with the aim of examining the composition of forest dwelling small mammal species and to compare their geographic distributions. Fourteen sites were sampled, eight in the Paraná basin and six in the Araguaia basin. A total of 20 species of small mammals was registered (8 marsupials and 12 rodents), 16...
Diversity, biomass, and trophic structure of a central Amazonian rainforest bir...
Johnson, Erik I.; Stouffer, Philip C.; Vargas, Claudeir FerreiraAmazonian forest bird communities are among the richest in the world. Even so, relatively little is known about the organization of the entire avian community at local scales or about differences across Amazonia. These are fundamental data not only for understanding the processes generating and maintaining tropical diversity, but also as a baseline for evaluating anthropogenic changes to Amazonian forests. Here...
Twenty years later: An update to the birds of the biological dynamics of forest...
Rutt, Cameron L.; Jirinec, Vitek; Johnson, Erik I.; Cohn-Haft, Mario; Vargas, Claudeir Ferreira; Stouffer, Philip C.Although species lists from throughout Amazonia have become available, relatively complete inventories based on longterm work remain rare. Longitudinal comparisons at well-studied sites provide the best opportunities for describing communities and identifying changes in regional avifaunas. Within central Amazonia, no region has received as much consistent ornithological coverage as the terra firme forests north...