Z values (estimates/standard errors) of linear (L) and quadratic (Q) terms of each variable in the best simultaneous autoregressive models for total species richness and each species richness group at four landscape scales.

For each species richness, the landscape scale with the lowest AIC value is shown in bold. A blank space means that the variable is not included in the best model. Abbreviations: Effort: number of surveys, AMT: annual mean temperature, APP: annual precipitation, AET: actual evapotranspiration, FRTlocal: proportion of forest cover at a local (50-m) scale, FRT: proportion of forest cover at a landscape scale, SDI: Simpson's diversity index.