Mixed-effect candidate models for the effect of noise playback on mass-dependent FCM concentrations (natural log-transformed).

a<p>Abbreviations of predictor variables in methods.</p>b<p>All models contain lek pairing and year as a random effect.</p>c<p>Number of parameters in the model.</p>d<p>Difference in AIC<i><sub>c</sub></i> (Akaike's Information criteria for small sample size) values from the top ranking model.</p>e<p>Akaike weight (Probability that the model is the best fit model giving the data and model candidate set).</p>f<p>Model with substantial support (ΔAIC<i><sub>c</sub></i> <2).</p>