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. 2017 Jun 26;17:24. doi: 10.1186/s12898-017-0134-z

Table 7.

GLM containing land cover classes as explanatory variables that influence road-kill numbers of grass snakes

CLC code Land cover class VIF Estimate Std. error z value P(>|z|)
Intercept −8.82E-01 2.82E-01 −3.129 0.002
411 Inland marshes 1.243 5.95E-05 1.22E-05 4.894 9.90E-07
142 Sport and leisure facilities 1.142 2.42E-05 1.03E-05 2.35 0.019
242 Complex cultivation patterns 1.579 5.81E-06 2.57E-06 2.262 0.024
243 Land principally occupied by agriculture, with significant areas of natural vegetation 1.483 −1.31E-05 6.32E-06 −2.08 0.038
112 Discontinuous urban fabric 1.277 −3.08E-06 1.49E-06 −2.067 0.039
221 Vineyards 1.447 −1.21E-06 1.08E-06 −1.118 0.264
312 Coniferous forest 1.099 −5.08E-06 5.79E-06 −0.878 0.38
231 Pastures 1.189 1.28E-06 3.68E-06 0.347 0.729
311 Broad-leaved forest 1.154 1.83E-07 4.09E-06 0.045 0.964
313 Mixed forest 1.113 2.40E-07 5.78E-06 0.042 0.967
111 Continuous urban fabric 1 −2.81E-03 2.24E-01 −0.013 0.989
324 Transitional woodland shrub 1 −1.66E-03 8.79E-01 −0.002 0.999
121 Industrial or commercial units 1 −2.71E-04 1.56E-01 −0.002 0.999

Land cover classes in descending order of P(>|z|)