Table 4. Model comparison and random effect analysis result.

Parameters	Null model	Model I	Model II	Model III
Community level variance	0.03(0.03–0.04)	0.03(0.02–0.04)	0.03(0.02–0.04)	0.03(0.02–0.03)
ICC	0.9%	0.85%	0.88%	0.83%
MOR	1.18	1.17	1.18	1.17
PCV	Ref	9.67%	6.45%	12.9%
Model fitness
Deviance	286643.58	274480.28	286202.12	274145.4