Table 1.

Quantification of the relative roles of ecological processes in bacterial and eukaryotic community assembly. Values indicate the percentage of community turnover associated with each process.

	Succession			Longitude			Latitude			MAP
	A	C	M	W	M	E	N	M	S	L	M	H
Bacteria
Homogeneous selection(%)	1.13	3.99	0	11.81	1.29	0.2	1.8	1.83	2.26	8.31	0.74	0.27
Heterogeneous selection(%)	23.75	1.09	21.25	28.5	15.26	18.44	26.56	22.47	18.72	15.72	7.03	30.22
Drift alone(%)	12.98	48.19	13.1	13.74	13.25	30.85	16.51	9.59	14.04	14.74	11.96	7.91
Homogeneous disper(%)	1.38	7.97	4.47	6.55	2.82	1.12	3.92	1.64	5.06	5.52	2.36	1.84
Disper limit coupled drift(%)	60.63	38.77	61.18	39.41	67.39	49.38	51.22	64.47	59.92	55.71	77.91	59.77
Eukaryota
Homogeneous selection(%)	4.42	7.69	34.44	5.91	18.95	4.04	8.04	4.91	19.92	5.82	11.91	6.86
Heterogeneous selection(%)	0.03	0	0	0.26	0.03	0	0	0.06	0	0.23	0	0
Drift alone(%)	21.48	65.57	9.68	48.01	22.52	20.46	37.04	19.24	25.89	35.17	25.92	12.97
Homogeneous disper(%)	1.05	2.93	55.87	2.44	3.95	4.5	5.19	1.48	4.08	2.72	2.68	2.31
Disper limit coupled drift(%)	73.02	23.81	0	43.39	54.55	71	49.74	74.32	50.11	56.05	59.49	77.86