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.