Environmental and spatial processes determining Ephemeroptera (Insecta) structures in tropical streamsYulie Shimano, Leandro Juen, Frederico Falcão Salles, Denis Silva Nogueira and Helena Soares Ramos CabetteAnn. Limnol. - Int. J. Lim., 49 1 (2013) 31-41DOI: https://doi.org/10.1051/limn/2013036