Assessment of the National Park network of mainland Spain by the Insecurity Index of vertebrate species

Data set of the above mentioned paper. Distribution of 37 vertebrate species and values of environmental variables in each 10 km x 10 km UTM cell of mainland Spain. Codes for the species and for the variables are detailed in Table 1 and Table S1 of the paper, respectively. IDcuad and UTM10 are numerical and text identifiers of the cells. NP details if the cell overlaps with a National Park. Proportion_NP is the proportion of the cell covered by National Parks.