Statistical analyses of home range and movement data
We used SYSTAT version 13 (Systat Software, San Jose, CA) to analyze home range and movement data. For comparison of mean annual home range and activity core sizes of males and non-gravid females we performed two-sample t-tests
We used analyses of variance with sex, season, and the interaction between sex and season as independent variables to compare the mean home range sizes (dependent variable) of male and non-gravid female snakes among seasons. We also compared the average distance moved between successive relocations (dependent variable) using ANOVA with sex, season, and the interaction between sex and season as independent variables.
We used Kolmogorov-Smirnov one-sample test with the Lilliefors option on residuals of each data set to test normality and Levene’s test on absolute values of residuals of each data set to test homogeneous variance and to confirm assumptions of statistical analyses.