Higher fine-scale genetic structure in peripheral than in core populations of a long-lived and mixed-mating conifer - eastern white cedar (Thuja occidentalisL.)

Table 4 Spatial autocorrelation coefficients (r), single-class squared pair-sample t-test (t²) and multi-class and multi-population (ω) heterogeneity tests of spatial autocorrelation coefficients (r) for individual populations, population pairs and subsets of populations

Populations	rand t²values and their statistical significance in different distance classes								Overall multi-distance class or multi population correlogram significance (ω-test criterion)
	0-15	16-30	31-45	46-60	61-75	76-90	91-105	106-120
	Spatial autocorrelation coefficients (r)
ED	0.087*	-0.024	-0.003	-0.002	-0.014	-0.029	-0.025	-0.008	75.35*
PA	0.030*	0.007	0.012	-0.005	-0.020	-0.012	-0.020	-0.002	70.49*
CL	0.081*	0.036*	0.006	-0.014	0.015	0.016	-0.017	-0.037	134.39*
RL	0.114*	0.045*	0.026*	0.026*	0.019*	0.001	-0.003	-0.009	147.32*
Core	0.058*	-0.007	0.003	-0.003	-0.017	-0.018	-0.022	-0.006	81.11*
Peripheral	0.093*	0.040*	0.016*	0.005*	0.017*	0.009*	-0.010	-0.022	154.80*
Four pops combined	0.066*	0.005	0.007*	0.000	-0.004	-0.003	-0.015	-0.016	65.65*
	Single-class squared pair-sample t-test (t²)
ED vs. PA	17.53*	8.44*	1.89	0.06	0.37	1.13	0.09	3.89	47.99*
ED vs. CL	0.10	17.13*	0.52	0.96	5.50*	8.03*	0.21	0.16	51.66*
ED vs. RL	1.34	18.83*	4.25*	4.70*	6.67*	3.07	1.71	0.02	57.02*
PA vs. CL	7.82*	4.54*	0.18	0.52	8.69*	4.31*	0.02	3.57	49.70*
PA vs. RL	12.76*	6.15*	0.93	5.05*	10.11*	0.72	1.03	4.00	62.34*
CL vs. RL	1.55	0.24	1.48	7.07*	0.07	1.20	0.85	0.16	28.08
Core vs. peripheral	4.72*	18.64	1.58	0.73	15.08*	6.83*	1.04	1.23	65.26*

ED, Edmundston; PA, Perth Andover; CL, Cedar Lake; RL, Rockland. * indicates significant values (P ≤ 0.05)

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