Adult and juvenile morphometrics and colour
In adult and juvenile frogs the following measurements were taken with a calliper to the nearest 0.1 mm, and weight was taken with a digital scale or Pesola spring scale (precision: 0.1 g): horizontal eye diameter (ED), horizontal eye neck fold to snout (FS), hand length (HAL), head width at eyes (HW), interorbital distance (IOD), length of elbow to finger tip (LE), tip of characteristic colour patch on forehead to snout (PS), snout-vent length (SVL), tarsal length (TSL), weight (W), webbing formula is given following Blommers-Schlösser (1979).
We calculated the body condition of each adult individual with the relative mass (W r ) condition index as described in Sztatecsny and Schabetsberger (2005). The obtained ratios were statistically analysed by Mann-Whitney-U test implemented in R (v 3.2.4).
The distinctive ventral and dorsal natural markings displayed by each metamorphosed frog were used for identifying recaptured individuals.