1. Laboratory of Theoretical and Applied Ethology, Department of BiologyFederal Rural University of PernambucoRecife Brazil
2. Laboratory of Ethology, Department of ZoologyFederal University of PernambucoRecife Brazil
3. Laboratory of Psychophysiology, Department of Experimental PsychologyUniversity of São PauloSão Paulo Brazil
4. Laboratory of Sensory Ecology, Department of Physiology and BehaviorFederal University of Rio Grande do NorteNatal Brazil