Supplementary Information

Supplementary Figure 1
Number of captures and recaptures of tree frogs using the PVC pipes by month and average rainfall and temperature in the wetland and riparian forest in Cerrito (Presidente Hayes, Paraguay) (PNG 127 kb).

Supplementary Figure 2
Predictor effect plots for the S. nasicus best model in relation to sampling month and habitat variables (distance to the high-water line of the wetland and forest type). Left panel shows the period effect on S. nasicus abundance and the right model the distance x forest type interaction effect. 95% Confidence intervals are shown (PNG 178 kb).

Supplementary Figure 3
Predictor effect plot for the D. nanus best model in relation to sampling month and habitat variables (distance to the high-water line of the wetland and forest type). The panel shows the period effect on D. nanus abundance. 95% Confidence intervals are shown (PNG 91 kb).

Supplementary Table 1 (download XLSX)
Water quality parameters measured along the mainstream of the wetland in Cerrito (Presidente Hayes, Paraguay), and methods used to obtain each parameter. Means, standard deviation, minimum and maximum values for each month, and results of the Friedman test are indicated.

Abbreviations in the table:
PRO.ME = internal procedure,
Rev. = review,
SM = Standard Method - Standard normalized methods for drinking water and wastewater analysis, edition N° 17 (APHA-AWWA-WPCF),
NN = non-standardized.

Supplementary Table 2. Type-II (non-significant interactions) and type-III ANOVA (significant interactions) results of the best models selected by backward model selection for all the data, and the subset of data that included water quality parameters.
Supplementary Table 3. Results of the Principal Component Analysis (PCA) of the water quality parameters (ordered by sampling months) of the wetland in Cerrito, Presidente Hayes, Paraguay (XLSX 20 kb).
