Table 3. Mixed-effect candidate models assessing the relationship of FCM concentrations and changes in lek attendance from the previous year on noise-playback leks.

Modela,b	K c	ΔAICc d	wi e
Null- random effects onlyf	5	0	0.90
Fecal cort	6	4.6	0.10

^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 AIC_c (Akaike's Information criteria for small sample size) values from the top ranking model.

^eAkaike weight.

^fModel with substantial support (ΔAIC_c <3).