Effects on brown treecreeper behaviour.

Results of the generalized linear mixed models (GLMMs) and generalized linear models using binomial distribution (logit-link structure) which examined the influence of substrate and the three experimental treatments: (1) ground vegetation cover; (2) addition of coarse woody debris (CWD) in 1 ha sites; and (3) the installation of nest boxes; on the probability of an individual displaying three particular behaviours: (1) foraging; (2) vigilance; and (3) resting and preening. Group and individual bird nested within group were included as random effects in GLMMs (σ2 = the variance of the random factor). Significant effects are shown in bold. Output shows the estimate and odds ratio for the significant substrate parameter in reference to the ‘branch’ category. Estimate for the constant is given from the full GLMMs. The total number of observations was 1270.