Few tropical ecosystems have been subjected to multi-disciplinary investigations as broad and exhaustive as those carried out on the Ilha de Maraca, a riverine island in the Brazilian Amazon. This diverse and remarkable ecological reserve, in Brazil s northernmost Amazon state of Roraima, includes environments and habitats ranging from rainforests and semi-deciduous forests to natural savannas, lakes, rivers and palm swamps. These have been subjected to an in-depth international scientific study whose primary aim was to undertake one of the most detailed ecological surveys ever conducted in...