Table 4.

Conditional probabilities of road-killed common toads and green toads for all land cover classes [P(E|B)]

CLC code	Land cover class	H(E)	H(E1)	H(E)+ H(E1)	P(E∩B)	P(B)	P(E|B)
324	Transitional woodland shrub	0.088	0.000	0.088	0.000	0.000	0.998
142	Sport and leisure facilities	0.296	0.023	0.319	0.002	0.002	0.924
243	Land principally occupied by agriculture, with significant areas of natural vegetation	3.181	2.081	5.262	0.016	0.027	0.606
311	Broad-leaved forest	2.147	2.998	5.145	0.011	0.026	0.416
211	Non-irrigated arable land	23.681	34.538	58.220	0.121	0.299	0.406
112	Discontinuous urban fabric	16.534	24.576	41.110	0.085	0.210	0.404
411	Inland marshes	0.088	0.180	0.269	0.000	0.001	0.327
312	Coniferous forest	0.862	1.831	2.694	0.004	0.014	0.319
221	Vineyards	20.752	47.589	68.340	0.106	0.351	0.303
111	Continuous urban fabric	0.334	0.854	1.188	0.002	0.006	0.281
242	Complex cultivation patterns	1.742	4.950	6.692	0.009	0.034	0.262
313	Mixed forest	0.138	2.094	2.232	0.001	0.011	0.063
231	Pastures	0.157	2.734	2.891	0.001	0.015	0.054
121	Industrial or commercial units	0.000	0.552	0.552	0.000	0.003	0.000

Proportion of each land cover class per section containing road-killed toads [H(E)] or not [H(E1)]. The probability of a road-killed toad on a certain land cover class [P(E∩B)] divided by the overall availability of this land cover class in the study area [P(B)] results in the conditional probability P(E|B). Land cover classes in descending order of P(E|B); the higher the P(E|B), the higher the probability of a road-kill on the specific land cover class