Table 2.

Spearman correlation coefficients among α-, β- and γ-diversity components. (All coefficients were significantly different from 0 (p < 0.001). α- (based on average local diversity values ()), β- and γ-diversity values were calculated on pairs of communities composed of one 20-species community and one n-community (n ranging from 1 to 100 species) sampled among 100-species trees generated under Yule or PDA (proportional-to-distinguishable arrangements) model.)

	Yule			PDA
	α	β	γ	α	β	γ
α	1			1
β	0.09	1		0.13	1
γ	0.97	0.12	1	0.98	0.17	1