. 2016 Aug 24;11(8):e0161085. doi: 10.1371/journal.pone.0161085

Table 5. Coefficients for correlations between habitat specialists’ rankings of examples of different habitats and algorithmic rankings.

Metric	D1	D1.2	D2	E1	E2	E3	F4	F4.1	F4.2
	Correlation coefficient (Kendall’s Tau)
SR	0.29^ns	0.21^ns	0.06^ns	0.52^*	0.50^*	0.81^***	0.25^ns	0.80^***	0.60^**
SimpsonD	0.39^ns	0.02^ns	0.08^ns	0.47^*	0.48^*	0.46^*	0.18^ns	0.54^*	0.17^*
Scarcity	0.38^ns	0.08^ns	0.03^ns	0.27^ns	0.02^ns	0.37^ns	0.25^ns	0.06^ns	0.02^ns
Positive	0.85^***	0.09^ns	−0.40^ns	0.72^***	0.81^***	0.85^***	0.61^**	0.78^***	0.52^*
Negative	0.13^ns	−0.25^ns	−0.13^ns	−0.18^ns	0.32^ns	−0.12^ns	−0.10^ns	−0.35^ns	−0.36^ns
Pos—Neg	0.84^***	0.04^ns	−0.46^*	0.74^***	0.66^**	0.74^***	0.34^ns	0.67^**	0.55^*
Subshrub							0.12^ns	0.29^ns	0.39^ns
Forb/Tot				0.02^ns	0.39^ns	0.15^ns
Sphagnum	0.53^*	0.62^*	0.52^*
MaxSimil	0.58^**	0.43^ns	0.29^ns	0.63^**	0.48^*	0.12^ns	0.54^*	0.64^**	0.08^ns
MeanSimil	0.42^ns	0.71^**	0.29^ns	0.53^*	0.61^**	0.58^**	0.30^ns	0.63^**	0.30^ns
Infertility	0.49^*	0.25^ns	0.11^ns	0.47^*	0.73^***	0.36^ns	0.63^**	0.57^*	−0.05^ns

SR, Species-richness; SimpsonD, Simpson’s Diversity Index; Scarcity, (−1 × UK prevalence of least-prevalent species present); Positive, number of positive indicator-species; Negative, −1 × number of negative indicator-species; Pos − Neg, number of positive indicator-species minus number of negative indicator-species; MaxSimil, greatest Czekanowski similarity to corresponding National Vegetation Classification (NVC) subcommunities; MeanSimil, mean Czekanowski similarity to corresponding NVC subcommunities; Infertility, −1 × mean Ellenberg N score; ns, not significant

*, P < 0.05

**, P < 0.01

***, P < 0.001; blank cells, not applicable.