Table 4. Seasons, origins, and destinations for which environmental conditions significantly affected caribou movements: actual vs. expected probabilities of moving given previous season origin, with test probabilities for difference of means (t) and actual vs. expected for destination pairs (Chi-sq).

Season at destination Origin zone Destination zone
States (A vs. B)
State A prob. State B prob. Expected prob.
t

Chi-sq.
Calving 5 1 early vs. late snowmelt 0.591 0.110 0.236 0.032 0.036
2 0.061 0.394 0.306 0.040
3 2 0.100 0.494 0.367 0.004 0.020
3 0.366 0.170 0.234 0.234
6 3 0.049 0.482 0.410 0.046 --
11 5 0.034 0.668 0.557 0.016 --
Summer 3 2 low vs. high insects 0.450 0.014 0.346 <0.001 0.012
3 0.055 0.350 0.125 0.124
Rut 5 5 early vs. late snowfall 0.072 0.335 0.190 0.022 0.010
6 0.222 0.049 0.144 0.067
Winter 6 6 deep vs. shallow snow 0.677 0.000 0.062 <0.001 0.032
8 0.001 0.231 0.021 0.5