Table 3. Results of background similarity tests.

The t- and p-values in two-tailed t-tests and whether the observed niche similarities are more or less similar than expected by chance (p < 0.01) are shown.

			Lineage for the background distribution
			A1			A2			A3
			t-value	p-value	similarity	t-value	p-value	similarity	t-value	p-value	similarity
lineage for the observed distribution	Schoener’s D	A1	-	-	-	−4.06	1.E−04	more	−8.48	2.E−13	more
		A2	0.36	0.72	NS	-	-	-	−3.43	9.E−04	more
		A3	−20.32	2.E−16	more	−8.69	8.E−14	more	-	-	-
		B1	−15.20	2.E−16	more	−837.44	2.E−16	more	−29.88	2.E−16	more
		B2	−32.92	2.E−16	more	−29.73	2.E−16	more	−13.25	2.E−16	more
		B. torrenticola	−26.40	2.E−16	more	−23.64	2.E−16	more	−69.19	2.E−16	more
	Hellinger’s I	A1	-	-	-	−1.10	0.27	NS	−3.20	2.E−03	more
		A2	−1.44	0.15	NS	-	-	-	1.52	0.13	NS
		A3	−16.50	2.E−16	more	−5.79	8.E−08	more	-	-	-
		B1	−15.08	2.E−16	more	−434.87	2.E−16	more	−25.06	2.E−16	more
		B2	−37.04	2.E−16	more	−27.28	2.E−16	more	−10.02	2.E−16	more
		B. torrenticola	−22.78	2.E−16	more	−20.86	2.E−16	more	−56.47	2.E−16	more