Veronica Nava
University of Milano-Bicocca, Department of Earth and Environmental Sciences, Piazza della Scienza 1, 20126 Milano ITALY
David Hamilton
Australian Rivers Institute Sir Samuel Griffith Centre (N78) 170 Kessels Road Nathan Qld 4111 AUSTRALIA
Juan David González Trujillo
Departamento de Biología – Oficina 205 – ext. 11319. Universidad Nacional de Colombia – Sede Bogotá, 111321, Bogotá COLOMBIA