Most important parameters (see Table S1) describing the pattern of <i>Rana temporaria</i> metamorphosis mass in study ponds.

Emigration mass in study ponds (n = 10, Figure 4) is described according to: log(mass) ∼x × development-time +z × development-time2. Given are the parameter combinations for the coefficients of slope (x) and bend (z) of the curve in the linear mixed model, which showed the lowest AICc (Akaike Information Criterion for finite sample sizes) after model selection (i.e. ΔAICc = AICci−AICcmin, <200). ‘Pond’ was used as random factor. Akaike mass = normalized relative likelihood of the model given the data.