Results of negative binomial generalized linear mixed models of counts of nightly bat passes.

Variables are distance from the road, maximum daily temperature, site, year, and presence of a light within 100 m (fixed effects), and night and transect (random effects, not shown). * indicates p-values below 0.05 and ** indicates p-values below 0.01 as determined by a likelihood ratio test. Rows without a symbol represent levels of categorical variables whose significance could not be tested individually. Distance coefficients are relative to a control distance of 300 m. Coefficients are in units of ln(passes).