1. Applied Ecology Program, Luiz de Queiroz College of AgricultureUniversity of São Paulo Piracicaba 13418‐900 SP Brazil
2. Universidade Federal do Sul da Bahia, Campus Sosígenes Costa Porto Seguro 45810–000 BA Brazil
3. Laboratorio de Medicina y Endocrinología de la Fauna SilvestreIMBECU – CCT CONICET Mendoza Mendoza 5500 Argentina
4. Department of Biology, Faculty of Philosophy, Sciences and Letters at Ribeirão PretoUniversity of São Paulo Ribeirão Preto 14040‐901 SP Brazil