Understorey phylogenetic diversity in thermophilous deciduous forests: overstorey species identity can matter more than species richness

Forest Ecosystems

Table 3 Results for the estimate of model coefficients and their significance to assess the effect of overstorey species identity on PD, NTI e NRI

Resp. variable	Term	Estimate	Std. Error	Adjusted SE	z value	P-value
PD	(Intercept)	4250.938	187.236	194.237	21.885	< 0.001***
	Quercus cerris	103.309	208.580	212.779	0.486	0.627
	Quercus ilex	− 116.350	222.404	226.656	0.513	0.608
	Ostrya carpinifolia	90.390	201.642	205.862	0.439	0.661
	Quercus petraea	−8.484	102.163	105.942	0.080	0.936
	Castanea sativa	−7.441	100.635	104.396	0.071	0.943
NRI	(Intercept)	0.779	0.140	0.146	5.349	< 0.001***
	Quercus cerris	−0.070	0.151	0.154	0.455	0.649
	Ostrya carpinifolia	0.051	0.134	0.137	0.370	0.712
	Quercus petraea	0.026	0.101	0.104	0.254	0.799
	Quercus ilex	0.017	0.088	0.091	0.182	0.856
	Castanea sativa	0.012	0.081	0.084	0.140	0.889
NTI	(Intercept)	0.546	0.117	0.122	0.471	< 0.001***
	Quercus petraea	0.527	0.165	0.172	3.070	0.002**
	Castanea sativa	−0.018	0.078	0.080	0.227	0.820
	Ostrya carpinifolia	−0.013	0.071	0.073	0.178	0.859
	Quercus ilex	0.012	0.069	0.071	0.170	0.865
	Quercus cerris	−0.012	0.068	0.070	0.165	0.869