In relation to the reproduction of fish species, the role of a free-flowing tributary was evaluated and compared with that of a dammed tributary downstream of large dams in the Madeira River, one of the main tributaries of the Amazon River. 2. Two hypotheses were tested: (i) the densities...
Amazon floodplain fish communities: Habitat connectivity and conservation in a rapidly deteriorating environment Floodplains in the Amazon Basin contain the world's highest fish species diversityConnectivity among lakes on floodplains varies with stage of the annual h... LE Hurd,RGC Sousa,FK Siqueira-...
The study, led by Matt Finer of the Center for Intenrational Environmental Law in Washington, D.C., analyzes the full portfolio of 150 planned dams across all six majorriver basinsconnecting the Andes to the Amazon, a geographic scope spanning Bolivia, Brazil, Colombia, Ecuador, and Peru. Th...
moving downstream, becoming relatively small (or negligible) at the river mouth (e.g. in the Amazon, Congo, and Lena; see grey cells in Fig.2). In a few locations (blue cells in Fig.2), the presence of dams increased the frequency of historical 100-year floods compared to experiment ...
In order to increase the energy demand to attract new investment to the country, the Brazilian government plans to build at least 20 new hydroelectric plants in the Amazon basin. Being a region of high biological value that provides important environmental services to the country, the damage from...
Brazil said it expects private investors and state-owned companies to commit more than $50 billion between now and 2019 to secure long-term contracts for future energy in the country, with an increased emphasis on wind, biomass and solar power to supplement hydroelectricity, the country's main ...
The Federal Government is both creating and allowing the construction of new hydroelectric dams throughout the country. Brazil already has 1,164 large-scale reservoirs. This number will be increased by more 239 hydroelectric power plants in the next few years, especially in the Amazon region (...
The best of National Geographic delivered to your inbox Sign up for more inspiring photos, stories, and special offers from National Geographic.Sign Up Legal Terms of Use Privacy Policy Interest-Based Ads Our Sites Nat Geo Home Attend a Live Event Book a...
A rise in the water table driven by local deforestation promotes the expansion of shallow riparian floodplains. Soil compaction and the deliberate construction of cattle and drainage ponds promote the increase in temporary water bodies in interfluves. We tested these hypotheses using data on habitat ...
Assessment of the invasive catfish Pterygoplichthys pardalis (Castelnau, 1855) in Thailand: ecological impacts and biological control alternatives A species of Neotropical suckermouth armored catfish (family Loricariidae), tentatively identified as the Amazon sailfin catfish Pterygoplichthys pardalis,......