DATA ANALYSIS
Geo-referenced radio-tracking data were analyzed using QGIS software to
show the routes followed by homing tortoises and to compute the
distances (straight displacement) travelled. Fisher’s exact test was
used to check if there was a statistically significant difference
between those tortoises that homed and those that did not. Crevice
occupancy data were analyzed through the Mann-Kendall (MK) test using
PAST4.06b software to assess if there was statistically significant
upward or downward trends in tortoise crevice occupancy over time.
Single factor Analysis of Variance (ANOVA) was computed using Excel,
2013 to compare if there was a statistically significant difference
between the tortoise numbers initially present in the crevices with the
average number present over 162 sampling days. Examination of videos
generated by camera-traps combined with results of behavioral
observations further contributed to a better understanding on Pancake
tortoise home fidelity, territoriality and other tortoise behaviors.