Mixed-effect candidate models assessing the relationship of FCM concentrations and changes in lek attendance from the previous year on noise-playback leks.

aAbbreviations of predictor variables in methods.bAll models contain lek pairing and year as a random effect.cNumber of parameters in the model.dDifference in AICc (Akaike's Information criteria for small sample size) values from the top ranking model.eAkaike weight.fModel with substantial support (ΔAICc