Table 1.

Summary of statistical analysis of 'jackknife procedure' used to determine environmental importance of ecological parameters (re-printed with permission from [2]).

N-1 Excluded Parameter	Difference from Comprehensive Map
	Mean	Std Dev	t Value	Pr > |t|	%	Kappa
Aspect	0.227	1.1201	75.25	< .0001	14.90913	0.8471
Diurnal Temp Range	-0.162	1.462	-41.09	< .0001	16.00786	0.8074
Elevation	-0.266	1.265	-78.19	< .0001	14.59951	0.8366
Flow Accumulation	-0.014	0.9739	-5.36	< .0001	12.44882	0.8683
Flow Direction	-0.362*	1.0288	-130.6*	< .0001	11.30027	0.818
Frost Days	-0.005	1.0807	-1.62	0.1063§	13.99543	0.8562
Land Cover	0.3947*	1.1047	132.67*	< .0001	15.73201	0.8418
Precipitation	-1.484*	2.1541*	-255.8*	< .0001	26.04734*	0.6299±
Minimum Temp	0.2259	1.0138	82.75	< .0001	13.24499	0.8606
Mean Temp	-0.204	1.1033	-68.74	< .0001	13.09959	0.8392
Maximum Temp	-0.298	1.4251	-77.65	< .0001	13.2078	0.8063
Topographic Index	-0.026	0.957	-9.94	< .0001	12.70847	0.8627
Wet Days	-0.134	1.2503	-39.82	< .0001	14.66416	0.833

(*) Indicates extreme values of mean difference, standard deviation, t value, and % difference. (§ Indicates the p-value for which exclusion of this parameter from the model caused no significant difference. (±) Indicates the kappa value for which exclusion caused overall model agreement to drop below significance, indicating the model loses internal accuracy without inclusion of this parameter.