Significant predictors of morph frequency across sampling sites in Poecilia parae.

Note: Each model was constructed using backward stepwise multiple regression analysis with color and luminance contrasts as determined for conspecifics, color and luminance contrast as determined for predators, and the relative abundance of Aequidens tetramerus cichlid predator as independent variables. Standardized regression coefficients (β') and significance tests are shown for each significant predictor variable. Normality Test (Shapiro-Wilk) P>0.46.