AICc model selection results where acoustic and human activity variables were used to explain whether or not individuals were responsive during scan samples.

Covariates (distance to road, distance to cover, dispersion, herd size, species, Julian date, time of day) and a random effect (Herd ID) were also included in each model.aThe top 9 models (out of 33) that fell within 4 AICc of the top model (holding 67% of the total model weight) are presented.bParameter count for the model (including intercept and variance).