Mean model performance.

Train set = average number of training data; Test set = average number of test data; Test omission rates = average proportion of test data which fell outside of the suitable area. Omission rates which are significantly lower than expected by chance alone are in bold type. Asterisks signify level of significance (*** pMeasured using random 5-fold cross validation (P. pipistrellus, P. pygmaeus, M. daubentonii and P. auritus), or jackknife validation (N. noctula, M. brandtii/mystacinus and M. nattereri) tests.