Table 4. Multi-collinearity test using cross-correlations (Pearson correlation coefficients, r) among environmental variables.

Variables	Bio1	Bio2	Bio3	Bio4	Bio5	Bio6	Bio7	Bio8	Bio9	Bio10	Bio11	Bio12	Bio13	Bio14	Bio15	Bio16	Bio17	Bio18	Bio19
Bio1
Bio2	−0.717
Bio3	−0.023	0.428
Bio4	−0.613	0.373	−0.652
Bio5	0.673	−0.502	−0.615	0.155
Bio6	0.944	−0.735	0.169	−0.817	0.417
Bio7	−0.712	0.565	−0.485	0.974	0.026	−0.898
Bio8	0.570	−0.455	−0.567	0.193	0.865	0.334	0.052
Bio9	0.932	−0.659	0.249	−0.834	0.384	0.983	−0.895	0.298
Bio10	0.761	−0.612	−0.576	0.044	0.982	0.528	−0.105	0.887	0.493
Bio11	0.930	−0.643	0.282	−0.860	0.363	0.991	−0.914	0.282	0.989	0.471
Bio12	0.661	−0.701	−0.016	−0.578	0.293	0.734	−0.665	0.173	0.699	0.377	0.705
Bio13	0.423	−0.458	0.062	−0.435	0.082	0.487	−0.496	0.085	0.477	0.179	0.480	0.831
Bio14	0.687	−0.714	−0.202	−0.416	0.496	0.695	−0.524	0.317	0.655	0.547	0.651	0.912	0.638
Bio15	−0.663	0.736	0.129	0.509	−0.394	−0.722	0.603	−0.227	−0.674	−0.444	−0.676	−0.825	−0.425	−0.862
Bio16	0.498	−0.531	0.114	−0.552	0.078	0.589	−0.610	0.018	0.574	0.179	0.582	0.905	0.969	0.709	−0.555
Bio17	0.701	−0.725	−0.200	−0.423	0.503	0.707	−0.534	0.316	0.668	0.557	0.662	0.913	0.637	0.995	−0.873	0.712
Bio18	0.369	−0.408	0.176	−0.501	−0.036	0.478	−0.543	0.060	0.462	0.067	0.480	0.816	0.948	0.598	−0.456	0.927	0.593
Bio19	0.714	−0.715	−0.179	−0.436	0.503	0.715	−0.542	0.293	0.693	0.557	0.675	0.920	0.666	0.980	−0.852	0.745	0.982	0.593