1Department of Biology, Indiana University, 1001 E. 3rd St, Bloomington, IN 47405, USA
2Department of Biology, University of Washington, Seattle, WA 98195, USA
3Lab. de Ictiología, Unidad de Ecología y Sistemática (UNESIS), Depto. de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Carrera 7 N° 43-82, Edf. 53, Lab. 108B, Bogotá, Colombia
4Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario M1C 1A4, Canada
5Laboratório de Fisiologia Comportamental e Evolução (LFCE), Instituto Nacional de Pesquisas de Amazônia (INPA), Av. André Araújo, 2936 Petrópolis, Manaus, AM 69067-375, Brazil