Selections of terrain attributes used to build the habitat maps and models.

The ID numbers refer to Lecours et al. [4] and allow finding the software and parameters with which the attributes were generated (see also S1 Appendix). Marker variables correspond to important variables; whether they were found on strong components (Sel. 1) or weak components (Sel. 4) is linked to the amount of topographic structure they accounted for. Variables with low cardinality (Sel. 2) did not have many different values, thus limiting their ability to explain slight variations in terrain morphology. Complex variables (Sel. 3) correspond to redundant variables. The terrain attributes identified by an asterisk were previously identified as potentially important [4]. The underlined attributes were recommended in [4].