The phylogenetic signal of species co-occurrence in high-diversity shrublands: different patterns for fire-killed and fire-resistant species

Table 1 Slopes of quantile regressions for phylogenetic and ecological distance

Data subset	Plot size (ha)	d.f.	Phylogenetic distance	Height	Seed size	Flowering period length	Flowering period overlap
all species pairs	0.04	417	0.003(0.002, 0.004)***	0.03	0.001	0.01	−0.02
	4	417	0.004(0.002, 0.006)**	0.06**	0.002	0.02	−0.07
resprouters only	0.04	46	−0.003(−0.006, 0.003)	−0.01	−0.003	−0.03	0.03
	4	46	−0.006(−0.01, 0.003)	−0.01	−0.003	−0.03	0.05
reseeders only	0.04	172	0.003(0.002, 0.005)*	0.08***	0.0003	0.03	−0.03
	4	172	0.004(0.003, 0.007)†	0.08***	0.0008	0.03	−0.04
resprouters vs. reseeders	0.04	195	0.002(0.001, 0.003)*	−0.005	0.003	0.009	−0.05
	4	195	0.003(0.002, 0.005)*	−0.007	0.004	0.008	−0.09

Response variable is co-occurrence among species pairs. Slope values for phylogenetic distance are medians (with 2.5^th and 97.5^th percentiles) from 1000 trees sampled from the Bayesian posterior distribution.
***p ≤ 0.001; **p ≤ 0.01; *p ≤ 0.05; †p ≤ 0.1.

ISSN: 1472-6785