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. 2010 Oct 13;278(1710):1329–1338. doi: 10.1098/rspb.2010.1877

Table 1.

Predictors of extinction risk—detailed SEM results. (Listed are standardized coefficients of correlates, variance explained for the three responses and other results. We analysed 8664 terrestrial and freshwater species. Coefficient in bold indicates that Z-value is significant (p < 0.05). Within-family indicates that shared ancestry is controlled for at the family level. ‘Migrant’ and ‘island’ include species that carry out altitudinal and intra- and inter-continental migration, and species that have at least 90% of their breeding range on non-continental islands, respectively. Reliability coefficient measures how well-measured each latent variable is by its indicators and should ideally be at least 0.7 (see electronic supplementary material, table S1). The strength of the coefficient generally points to more stable estimates among indicators for a latent variable (see text). Intra-class correlation measures the extent of nestedness in each model. n.a., not applicable.)

all species
 within-family
 within-family
cross-species within-family non-migrant migrant mainland island
correlate
 range size −0.58 −0.63 −0.54 −0.58 −0.61 −0.39
 encroachment 0.26 0.22 0.27 0.23 0.26 0.19
 life history 0.24 0.19 0.32 0.11 0.20 0.41
 ecological niche 0.15 0.14 −0.02 0.08 0.12 0.23
 niche breadth −0.15 −0.08 −0.19 −0.05 −0.25 0.03
 environmental niche 0.22 0.24 0.17 0.42 0.38 0.11
variance explained
 extinction risk 0.49 0.47 0.50 0.48 0.56 0.50
 encroachment 0.73 0.67 0.73 0.54 0.66 0.75
 range size 0.53 0.38 0.41 0.04 0.36 0.47
other details
 group size 8664a 6952 1712 6980 1684
 number of threatened/non-threatened species 858a/7806a 747/6205 109/1603 574/6406 282/1402
 number of free parameters 54 57 88b 88b
 intra-class correlation n.a. 0.16 0.08b 0.02b
reliability coefficient
 life history 0.86 0.67 0.67 0.83 0.69 0.53
 ecological niche 0.88 0.80 0.80 0.82 0.81 0.81
 niche breadth 0.01 0.01 0.08 0.01 0.29 0.01
 environmental niche 0.88 0.85 0.78 0.92 0.85 0.72

aSimilar values are listed for different models.

bSimilar values are listed for identical models.