Table 2 Predictors of richness and abundance identified by GLMs.

Mean values per ecoregion provide replicate sample data in models. Marginal R2 values (% contribution) are shown for predictors that explain >5% of variation in best models identified using Akaike information criteria (AIC). Predictors trending in the opposite direction to associated latitudinal hypothesis are shown in italics; predictors with direction consistent with hypothesis are in bold. Additional details are provided in table S1. na, not assessed; −, poor model fit.

TaxonMean abundanceSite richnessSite richness (N-corrected)Local richnessEcoregion richness
All taxa+NO3 (6)+SST (56)
+Coral (7)
+SST (60)
+Coral (10)
+Coral (48) −NO3 (7)
SST range (6)
+Coral (42)
NO3 (15)
Vertebrates+SST (68)+SST (85)NO3 (21)
+Coral (10)
+SST (73)NO3 (45)
+Coral (15)
InvertebratesCoral (33)
+Chl (6)
SST (33) +Chl (6)
−Shelf (6)
Stability (9)+Coast (8)
+Shelf (7)
+Coral (20) +Shelf (8)
NO3 (6)
Actinopterygii+SST (68)+SST (85)+Coral (25)
NO3 (7)
na+Coral (44)
NO3 (16)
AsteroideaSST (37)
+Chl (14)
SST (41)
+Chl (9)
na+Connect (7)
Echinoidea+NO3 (23)
Coral (8)
+NO3 (9)
Island (9)
Shelf (14)na+Coral (9)
GastropodaCoral (34)SST (28)na+Coral (19) +Chl (7)
CrustaceaStability (31)
+NO3 (8)
Stability (42)Stability (9)
+Coral (9)
na+Coral (16)
+SST range (6)