ダム建設で生物多様性が失われた事例はある？
The fish fauna of the Xingu river is extremely rich with an estimated 600 fish species and with a high degree of endemism. The area either dried out or drowned by the dam spans the entire known world distribution of a number of species, e.g. the zebra pleco ("Hypancistrus zebra"), the sunshine pleco ("Scobinancistrus aureatus"), the slender dwarf pike cichlid ("Teleocichla centisquama"), the killifish "Anablepsoides xinguensis" and "Spectrolebias reticulatus", and the Xingu dart-poison frog ("Allobates crombiei"). An independent expert review of the costs of the dam concluded that the proposed flow through the Volta Grande meant the river "will not be capable of maintaining species diversity", risking "extinction of hundreds of species".
no