Parameter means and 95% credible intervals from our Greater Siren, Siren lacertina, growth model for length (SVL, mm) and mass (g). Prob(X > 0) gives the proportion of the marginal posterior distribution for a given parameter that is greater than 0. Values close to 0 and 1 indicate high probabilities of nonzero effects. τ is precision, equal to 1/variance. T(0,) indicates truncation to only values >0, and T(0.0001,) indicates truncation to only values >0.0001. Note that PDSI scales positively with values because positive values represent wetter years and negative values are drier years.