Summary of the biotic and abiotic factors characterized in the Environmental sex determination system. The scheme shows the outcomes of single environmental factors and not the interaction between them. Numbers between square bracket are the references for each example: Geffroy and Bardonnet [26], Shang et al. [31], Thomas and Rahman [33], Cheung et al. [36], Rubin [40], Reddon and Hurd [42], Brown et al. [45], Corona-Herrera et al. [46], Hayasaka et al. [47], Strüssmann et al. [52], Ribas et al. [62], Hattori et al. [69], y Castañeda-Cortés [96]