Fig. 4
From: Northern spotted owl nesting forests as fire refugia: a 30-year synthesis of large wildfires
Burned/area (B/A) ratios with 95% confidence intervals for forest types burned by severity class for 472 large (≥ 200 ha) wildfires in the range of the northern spotted owl, USA, 1987–2017. Forest types were INTERIOR nesting (cyan squares), EDGE nesting (orchid triangles), and NON-NESTING forest (gray circles), and fire severity classes were unburned-low (UL), moderate (M), and high (H) severity. Panels are the B/A ratios for all large wildfires rangewide (a) and within the three fire regime areas of low severity, very frequent (b), mixed severity, frequent (c), and high severity, infrequent (d)