Fig 4. Probability of American marten occurrence is sensitive to seismic line density calculations.

The relationship between the probability of American marten (Martes americana) occurrence and linear feature density at the home range in northwest Canada is sensitive to line density calculations. Although both metrics of seismic line density show a clear decline, where narrow seismic lines (≤ 2 m) are removed from the calculation (i.e., corrected seismic density), decline in mean probability of occurrence is almost 80%.