Table 3. Spearman rank correlation coefficients for the relationship between pairwise difference in aridity between sites and the components of the partitioning of Sørensen and Bray–Curtis dissimilarities.

		Sørensen		Bray–Curtis
Year	Season	Turnover	Nestedness	Balanced	Gradient
2013	Wet	0.429	−0.022	0.593***	−0.135
	Dry	0.493**	−0.210	0.487*	−0.331
2014	Wet	0.536**	−0.208	0.683***	−0.402
	Dry	0.590***	0.116	0.479*	−0.308

Notes:

We used presence/absence dissimilarity (turnover and nestedness components of Sørensen index) and abundance-based dissimilarity (balanced and gradient components of Bray–Curtis index) for the different surveys. Significance values after Bonferroni correction: ms, marginally significant;

^*p < 0.003;

^**p < 0.0006;

^***p < 0.00006.